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gerrit-public.fairphone.software / kernel / msm-4.9 / f9c9eaa42b73caf622bc9950c2d304e5338d4e9f / . / drivers / gpu / drm / msm / dsi-staging / dsi_panel.c
blob: e2584cd9c14c0da63a1d4468fe60c1856447ec8c [file] [log] [blame]
/*
* Copyright (c) 2016-2020, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#define pr_fmt(fmt) "msm-dsi-panel:[%s:%d] " fmt, __func__, __LINE__
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <video/mipi_display.h>
#include <linux/firmware.h>
#include "dsi_panel.h"
#include "dsi_ctrl_hw.h"
/**
* topology is currently defined by a set of following 3 values:
* 1. num of layer mixers
* 2. num of compression encoders
* 3. num of interfaces
*/
#define TOPOLOGY_SET_LEN 3
#define MAX_TOPOLOGY 5
#define DSI_PANEL_DEFAULT_LABEL "Default dsi panel"
#define EXT_BRIDGE_DEFAULT_LABEL "Default ext bridge"
#define DEFAULT_MDP_TRANSFER_TIME 14000
#define DEFAULT_PANEL_JITTER_NUMERATOR 2
#define DEFAULT_PANEL_JITTER_DENOMINATOR 1
#define DEFAULT_PANEL_JITTER_ARRAY_SIZE 2
#define MAX_PANEL_JITTER 10
#define DEFAULT_PANEL_PREFILL_LINES 25
enum dsi_dsc_ratio_type {
DSC_8BPC_8BPP,
DSC_10BPC_8BPP,
DSC_12BPC_8BPP,
DSC_RATIO_TYPE_MAX
};
static u32 dsi_dsc_rc_buf_thresh[] = {0x0e, 0x1c, 0x2a, 0x38, 0x46, 0x54,
0x62, 0x69, 0x70, 0x77, 0x79, 0x7b, 0x7d, 0x7e};
/*
* DSC 1.1
* Rate control - Min QP values for each ratio type in dsi_dsc_ratio_type
*/
static char dsi_dsc_rc_range_min_qp_1_1[][15] = {
{0, 0, 1, 1, 3, 3, 3, 3, 3, 3, 5, 5, 5, 7, 13},
{0, 4, 5, 5, 7, 7, 7, 7, 7, 7, 9, 9, 9, 11, 17},
{0, 4, 9, 9, 11, 11, 11, 11, 11, 11, 13, 13, 13, 15, 21},
};
/*
* DSC 1.1 SCR
* Rate control - Min QP values for each ratio type in dsi_dsc_ratio_type
*/
static char dsi_dsc_rc_range_min_qp_1_1_scr1[][15] = {
{0, 0, 1, 1, 3, 3, 3, 3, 3, 3, 5, 5, 5, 9, 12},
{0, 4, 5, 5, 7, 7, 7, 7, 7, 7, 9, 9, 9, 13, 16},
{0, 4, 9, 9, 11, 11, 11, 11, 11, 11, 13, 13, 13, 17, 20},
};
/*
* DSC 1.1
* Rate control - Max QP values for each ratio type in dsi_dsc_ratio_type
*/
static char dsi_dsc_rc_range_max_qp_1_1[][15] = {
{4, 4, 5, 6, 7, 7, 7, 8, 9, 10, 11, 12, 13, 13, 15},
{8, 8, 9, 10, 11, 11, 11, 12, 13, 14, 15, 16, 17, 17, 19},
{12, 12, 13, 14, 15, 15, 15, 16, 17, 18, 19, 20, 21, 21, 23},
};
/*
* DSC 1.1 SCR
* Rate control - Max QP values for each ratio type in dsi_dsc_ratio_type
*/
static char dsi_dsc_rc_range_max_qp_1_1_scr1[][15] = {
{4, 4, 5, 6, 7, 7, 7, 8, 9, 10, 10, 11, 11, 12, 13},
{8, 8, 9, 10, 11, 11, 11, 12, 13, 14, 14, 15, 15, 16, 17},
{12, 12, 13, 14, 15, 15, 15, 16, 17, 18, 18, 19, 19, 20, 21},
};
/*
* DSC 1.1 and DSC 1.1 SCR
* Rate control - bpg offset values
*/
static char dsi_dsc_rc_range_bpg_offset[] = {2, 0, 0, -2, -4, -6, -8, -8,
-8, -10, -10, -12, -12, -12, -12};
int dsi_dsc_create_pps_buf_cmd(struct msm_display_dsc_info *dsc, char *buf,
int pps_id)
{
char *bp;
char data;
int i, bpp;
char *dbgbp;
dbgbp = buf;
bp = buf;
/* First 7 bytes are cmd header */
*bp++ = 0x0A;
*bp++ = 1;
*bp++ = 0;
*bp++ = 0;
*bp++ = 10;
*bp++ = 0;
*bp++ = 128;
*bp++ = (dsc->version & 0xff); /* pps0 */
*bp++ = (pps_id & 0xff); /* pps1 */
bp++; /* pps2, reserved */
data = dsc->line_buf_depth & 0x0f;
data |= ((dsc->bpc & 0xf) << 4);
*bp++ = data; /* pps3 */
bpp = dsc->bpp;
bpp <<= 4; /* 4 fraction bits */
data = (bpp >> 8);
data &= 0x03; /* upper two bits */
data |= ((dsc->block_pred_enable & 0x1) << 5);
data |= ((dsc->convert_rgb & 0x1) << 4);
data |= ((dsc->enable_422 & 0x1) << 3);
data |= ((dsc->vbr_enable & 0x1) << 2);
*bp++ = data; /* pps4 */
*bp++ = (bpp & 0xff); /* pps5 */
*bp++ = ((dsc->pic_height >> 8) & 0xff); /* pps6 */
*bp++ = (dsc->pic_height & 0x0ff); /* pps7 */
*bp++ = ((dsc->pic_width >> 8) & 0xff); /* pps8 */
*bp++ = (dsc->pic_width & 0x0ff); /* pps9 */
*bp++ = ((dsc->slice_height >> 8) & 0xff);/* pps10 */
*bp++ = (dsc->slice_height & 0x0ff); /* pps11 */
*bp++ = ((dsc->slice_width >> 8) & 0xff); /* pps12 */
*bp++ = (dsc->slice_width & 0x0ff); /* pps13 */
*bp++ = ((dsc->chunk_size >> 8) & 0xff);/* pps14 */
*bp++ = (dsc->chunk_size & 0x0ff); /* pps15 */
*bp++ = (dsc->initial_xmit_delay >> 8) & 0x3; /* pps16, bit 0, 1 */
*bp++ = (dsc->initial_xmit_delay & 0xff);/* pps17 */
*bp++ = ((dsc->initial_dec_delay >> 8) & 0xff); /* pps18 */
*bp++ = (dsc->initial_dec_delay & 0xff);/* pps19 */
bp++; /* pps20, reserved */
*bp++ = (dsc->initial_scale_value & 0x3f); /* pps21 */
*bp++ = ((dsc->scale_increment_interval >> 8) & 0xff); /* pps22 */
*bp++ = (dsc->scale_increment_interval & 0xff); /* pps23 */
*bp++ = ((dsc->scale_decrement_interval >> 8) & 0xf); /* pps24 */
*bp++ = (dsc->scale_decrement_interval & 0x0ff);/* pps25 */
bp++; /* pps26, reserved */
*bp++ = (dsc->first_line_bpg_offset & 0x1f);/* pps27 */
*bp++ = ((dsc->nfl_bpg_offset >> 8) & 0xff);/* pps28 */
*bp++ = (dsc->nfl_bpg_offset & 0x0ff); /* pps29 */
*bp++ = ((dsc->slice_bpg_offset >> 8) & 0xff);/* pps30 */
*bp++ = (dsc->slice_bpg_offset & 0x0ff);/* pps31 */
*bp++ = ((dsc->initial_offset >> 8) & 0xff);/* pps32 */
*bp++ = (dsc->initial_offset & 0x0ff); /* pps33 */
*bp++ = ((dsc->final_offset >> 8) & 0xff);/* pps34 */
*bp++ = (dsc->final_offset & 0x0ff); /* pps35 */
*bp++ = (dsc->min_qp_flatness & 0x1f); /* pps36 */
*bp++ = (dsc->max_qp_flatness & 0x1f); /* pps37 */
*bp++ = ((dsc->rc_model_size >> 8) & 0xff);/* pps38 */
*bp++ = (dsc->rc_model_size & 0x0ff); /* pps39 */
*bp++ = (dsc->edge_factor & 0x0f); /* pps40 */
*bp++ = (dsc->quant_incr_limit0 & 0x1f); /* pps41 */
*bp++ = (dsc->quant_incr_limit1 & 0x1f); /* pps42 */
data = ((dsc->tgt_offset_hi & 0xf) << 4);
data |= (dsc->tgt_offset_lo & 0x0f);
*bp++ = data; /* pps43 */
for (i = 0; i < 14; i++)
*bp++ = (dsc->buf_thresh[i] & 0xff); /* pps44 - pps57 */
for (i = 0; i < 15; i++) { /* pps58 - pps87 */
data = (dsc->range_min_qp[i] & 0x1f);
data <<= 3;
data |= ((dsc->range_max_qp[i] >> 2) & 0x07);
*bp++ = data;
data = (dsc->range_max_qp[i] & 0x03);
data <<= 6;
data |= (dsc->range_bpg_offset[i] & 0x3f);
*bp++ = data;
}
return 128;
}
static int dsi_panel_vreg_get(struct dsi_panel *panel)
{
int rc = 0;
int i;
struct regulator *vreg = NULL;
for (i = 0; i < panel->power_info.count; i++) {
vreg = devm_regulator_get(panel->parent,
panel->power_info.vregs[i].vreg_name);
rc = PTR_RET(vreg);
if (rc) {
pr_err("failed to get %s regulator\n",
panel->power_info.vregs[i].vreg_name);
goto error_put;
}
panel->power_info.vregs[i].vreg = vreg;
}
return rc;
error_put:
for (i = i - 1; i >= 0; i--) {
devm_regulator_put(panel->power_info.vregs[i].vreg);
panel->power_info.vregs[i].vreg = NULL;
}
return rc;
}
static int dsi_panel_vreg_put(struct dsi_panel *panel)
{
int rc = 0;
int i;
for (i = panel->power_info.count - 1; i >= 0; i--)
devm_regulator_put(panel->power_info.vregs[i].vreg);
return rc;
}
static int dsi_panel_exd_gpio_request(struct dsi_panel *panel)
{
int rc = 0;
struct dsi_panel_exd_config *e_config = &panel->exd_config;
if (!e_config->display_1p8_en && !e_config->led_5v_en &&
!e_config->led_en1 && !e_config->led_en2 &&
!e_config->oenab && !e_config->selab &&
!e_config->switch_power)
return 0;
if (gpio_is_valid(e_config->display_1p8_en)) {
rc = gpio_request(e_config->display_1p8_en, "display_1p8_en");
if (rc) {
pr_err("request for display_1p8_en failed, rc=%d\n",
rc);
goto error;
}
}
if (gpio_is_valid(e_config->led_5v_en)) {
rc = gpio_request(e_config->led_5v_en, "led_5v_en");
if (rc) {
pr_err("request for led_5v_en failed, rc=%d\n",
rc);
goto error_release_1p8;
}
}
if (gpio_is_valid(e_config->led_en1)) {
rc = gpio_request(e_config->led_en1, "led_en1");
if (rc) {
pr_err("request for led_en1 failed, rc=%d\n",
rc);
goto error_release_5v;
}
}
if (gpio_is_valid(e_config->led_en2)) {
rc = gpio_request(e_config->led_en2, "led_en2");
if (rc) {
pr_err("request for led_en2 failed, rc=%d\n",
rc);
goto error_release_led;
}
}
if (gpio_is_valid(e_config->oenab)) {
rc = gpio_request(e_config->oenab, "oenab");
if (rc) {
pr_err("request for oenab failed, rc=%d\n",
rc);
goto error_release_led2;
}
}
if (gpio_is_valid(e_config->selab)) {
rc = gpio_request(e_config->selab, "selab");
if (rc) {
pr_err("request for selab failed, rc=%d\n",
rc);
goto error_release_oenab;
}
}
if (gpio_is_valid(e_config->switch_power)) {
rc = gpio_request(e_config->switch_power, "switch_power");
if (rc) {
pr_err("request for switch_power failed, rc=%d\n",
rc);
goto error_release_selab;
}
}
return rc;
error_release_selab:
if (gpio_is_valid(e_config->selab))
gpio_free(e_config->selab);
error_release_oenab:
if (gpio_is_valid(e_config->oenab))
gpio_free(e_config->oenab);
error_release_led2:
if (gpio_is_valid(e_config->led_en2))
gpio_free(e_config->led_en2);
error_release_led:
if (gpio_is_valid(e_config->led_en1))
gpio_free(e_config->led_en1);
error_release_5v:
if (gpio_is_valid(e_config->led_5v_en))
gpio_free(e_config->led_5v_en);
error_release_1p8:
if (gpio_is_valid(e_config->display_1p8_en))
gpio_free(e_config->display_1p8_en);
error:
return rc;
}
static int dsi_panel_gpio_request(struct dsi_panel *panel)
{
int rc = 0;
struct dsi_panel_reset_config *r_config = &panel->reset_config;
if (gpio_is_valid(r_config->reset_gpio)) {
rc = gpio_request(r_config->reset_gpio, "reset_gpio");
if (rc) {
pr_err("request for reset_gpio failed, rc=%d\n", rc);
goto error;
}
}
if (gpio_is_valid(r_config->disp_en_gpio)) {
rc = gpio_request(r_config->disp_en_gpio, "disp_en_gpio");
if (rc) {
pr_err("request for disp_en_gpio failed, rc=%d\n", rc);
goto error_release_reset;
}
}
if (gpio_is_valid(panel->bl_config.en_gpio)) {
rc = gpio_request(panel->bl_config.en_gpio, "bklt_en_gpio");
if (rc) {
pr_err("request for bklt_en_gpio failed, rc=%d\n", rc);
goto error_release_disp_en;
}
}
if (gpio_is_valid(r_config->lcd_mode_sel_gpio)) {
rc = gpio_request(r_config->lcd_mode_sel_gpio, "mode_gpio");
if (rc) {
pr_err("request for mode_gpio failed, rc=%d\n", rc);
goto error_release_mode_sel;
}
}
goto error;
error_release_mode_sel:
if (gpio_is_valid(panel->bl_config.en_gpio))
gpio_free(panel->bl_config.en_gpio);
error_release_disp_en:
if (gpio_is_valid(r_config->disp_en_gpio))
gpio_free(r_config->disp_en_gpio);
error_release_reset:
if (gpio_is_valid(r_config->reset_gpio))
gpio_free(r_config->reset_gpio);
error:
return rc;
}
static int dsi_panel_exd_gpio_release(struct dsi_panel *panel)
{
struct dsi_panel_exd_config *e_config = &panel->exd_config;
if (!e_config->display_1p8_en && !e_config->led_5v_en &&
!e_config->led_en1 && !e_config->led_en2 &&
!e_config->oenab && !e_config->selab &&
!e_config->switch_power)
return 0;
if (gpio_is_valid(e_config->display_1p8_en))
gpio_free(e_config->display_1p8_en);
if (gpio_is_valid(e_config->led_5v_en))
gpio_free(e_config->led_5v_en);
if (gpio_is_valid(e_config->led_en1))
gpio_free(e_config->led_en1);
if (gpio_is_valid(e_config->led_en2))
gpio_free(e_config->led_en2);
if (gpio_is_valid(e_config->oenab))
gpio_free(e_config->oenab);
if (gpio_is_valid(e_config->selab))
gpio_free(e_config->selab);
if (gpio_is_valid(e_config->switch_power))
gpio_free(e_config->switch_power);
return 0;
}
static int dsi_panel_gpio_release(struct dsi_panel *panel)
{
int rc = 0;
struct dsi_panel_reset_config *r_config = &panel->reset_config;
if (gpio_is_valid(r_config->reset_gpio))
gpio_free(r_config->reset_gpio);
if (gpio_is_valid(r_config->disp_en_gpio))
gpio_free(r_config->disp_en_gpio);
if (gpio_is_valid(panel->bl_config.en_gpio))
gpio_free(panel->bl_config.en_gpio);
if (gpio_is_valid(panel->reset_config.lcd_mode_sel_gpio))
gpio_free(panel->reset_config.lcd_mode_sel_gpio);
return rc;
}
int dsi_panel_trigger_esd_attack(struct dsi_panel *panel)
{
struct dsi_panel_reset_config *r_config;
if (!panel) {
pr_err("Invalid panel param\n");
return -EINVAL;
}
r_config = &panel->reset_config;
if (!r_config) {
pr_err("Invalid panel reset configuration\n");
return -EINVAL;
}
if (gpio_is_valid(r_config->reset_gpio)) {
gpio_set_value(r_config->reset_gpio, 0);
pr_info("GPIO pulled low to simulate ESD\n");
return 0;
}
pr_err("failed to pull down gpio\n");
return -EINVAL;
}
static int dsi_panel_reset(struct dsi_panel *panel)
{
int rc = 0;
struct dsi_panel_reset_config *r_config = &panel->reset_config;
int i;
if (gpio_is_valid(panel->reset_config.disp_en_gpio)) {
rc = gpio_direction_output(panel->reset_config.disp_en_gpio, 1);
if (rc) {
pr_err("unable to set dir for disp gpio rc=%d\n", rc);
goto exit;
}
}
if (r_config->count) {
rc = gpio_direction_output(r_config->reset_gpio,
r_config->sequence[0].level);
if (rc) {
pr_err("unable to set dir for rst gpio rc=%d\n", rc);
goto exit;
}
}
for (i = 0; i < r_config->count; i++) {
gpio_set_value(r_config->reset_gpio,
r_config->sequence[i].level);
if (r_config->sequence[i].sleep_ms)
usleep_range(r_config->sequence[i].sleep_ms * 1000,
(r_config->sequence[i].sleep_ms * 1000) + 100);
}
if (gpio_is_valid(panel->bl_config.en_gpio)) {
rc = gpio_direction_output(panel->bl_config.en_gpio, 1);
if (rc)
pr_err("unable to set dir for bklt gpio rc=%d\n", rc);
}
if (gpio_is_valid(panel->reset_config.lcd_mode_sel_gpio)) {
bool out = true;
if ((panel->reset_config.mode_sel_state == MODE_SEL_DUAL_PORT)
|| (panel->reset_config.mode_sel_state
== MODE_GPIO_LOW))
out = false;
else if ((panel->reset_config.mode_sel_state
== MODE_SEL_SINGLE_PORT) ||
(panel->reset_config.mode_sel_state
== MODE_GPIO_HIGH))
out = true;
rc = gpio_direction_output(
panel->reset_config.lcd_mode_sel_gpio, out);
if (rc)
pr_err("unable to set dir for mode gpio rc=%d\n", rc);
}
exit:
return rc;
}
static int dsi_panel_set_pinctrl_state(struct dsi_panel *panel, bool enable)
{
int rc = 0;
struct pinctrl_state *state;
if (enable)
state = panel->pinctrl.active;
else
state = panel->pinctrl.suspend;
rc = pinctrl_select_state(panel->pinctrl.pinctrl, state);
if (rc)
pr_err("[%s] failed to set pin state, rc=%d\n", panel->name,
rc);
return rc;
}
static int dsi_panel_exd_enable(struct dsi_panel *panel)
{
int rc = 0;
struct dsi_panel_exd_config *e_config = &panel->exd_config;
if (!e_config->display_1p8_en && !e_config->led_5v_en &&
!e_config->led_en1 && !e_config->led_en2 &&
!e_config->oenab && !e_config->selab &&
!e_config->switch_power)
return 0;
if (gpio_is_valid(e_config->display_1p8_en)) {
rc = gpio_direction_output(e_config->display_1p8_en, 0);
if (rc) {
pr_err("unable to set dir for disp_1p8_en rc:%d\n",
rc);
goto exit;
}
gpio_set_value(e_config->display_1p8_en, 1);
}
if (gpio_is_valid(e_config->switch_power)) {
rc = gpio_direction_output(e_config->switch_power, 0);
if (rc) {
pr_err("unable to set dir for switch_power rc:%d\n",
rc);
goto exit;
}
gpio_set_value(e_config->switch_power, 1);
}
if (gpio_is_valid(e_config->led_5v_en)) {
rc = gpio_direction_output(e_config->led_5v_en, 0);
if (rc) {
pr_err("unable to set dir for led_5v_en rc:%d\n", rc);
goto exit;
}
gpio_set_value(e_config->led_5v_en, 1);
}
if (gpio_is_valid(e_config->led_en1)) {
rc = gpio_direction_output(e_config->led_en1, 0);
if (rc) {
pr_err("unable to set dir for led_en1 rc:%d\n", rc);
goto exit;
}
gpio_set_value(e_config->led_en1, 1);
}
if (gpio_is_valid(e_config->led_en2)) {
rc = gpio_direction_output(e_config->led_en2, 0);
if (rc) {
pr_err("unable to set dir for led_en2 rc:%d\n", rc);
goto exit;
}
gpio_set_value(e_config->led_en2, 1);
}
if (gpio_is_valid(e_config->oenab)) {
rc = gpio_direction_output(e_config->oenab, 0);
if (rc) {
pr_err("unable to set dir for oenab rc:%d\n", rc);
goto exit;
}
gpio_set_value(e_config->oenab, 0);
}
if (gpio_is_valid(e_config->selab)) {
rc = gpio_direction_output(e_config->selab, 0);
if (rc) {
pr_err("unable to set dir for selab rc:%d\n", rc);
goto exit;
}
gpio_set_value(e_config->selab, 1);
}
exit:
return rc;
}
static void dsi_panel_exd_disable(struct dsi_panel *panel)
{
struct dsi_panel_exd_config *e_config = &panel->exd_config;
if (!e_config->display_1p8_en && !e_config->led_5v_en &&
!e_config->led_en1 && !e_config->led_en2 &&
!e_config->oenab && !e_config->selab &&
!e_config->switch_power)
return;
if (gpio_is_valid(e_config->display_1p8_en))
gpio_set_value(e_config->display_1p8_en, 0);
if (gpio_is_valid(e_config->led_5v_en))
gpio_set_value(e_config->led_5v_en, 0);
if (gpio_is_valid(e_config->led_en1))
gpio_set_value(e_config->led_en1, 0);
if (gpio_is_valid(e_config->led_en2))
gpio_set_value(e_config->led_en2, 0);
if (gpio_is_valid(e_config->oenab))
gpio_set_value(e_config->oenab, 1);
if (gpio_is_valid(e_config->selab))
gpio_set_value(e_config->selab, 0);
if (gpio_is_valid(e_config->switch_power))
gpio_set_value(e_config->switch_power, 0);
}
static int dsi_panel_power_on(struct dsi_panel *panel)
{
int rc = 0;
rc = dsi_pwr_enable_regulator(&panel->power_info, true);
if (rc) {
pr_err("[%s] failed to enable vregs, rc=%d\n", panel->name, rc);
goto exit;
}
rc = dsi_panel_set_pinctrl_state(panel, true);
if (rc) {
pr_err("[%s] failed to set pinctrl, rc=%d\n", panel->name, rc);
goto error_disable_vregs;
}
rc = dsi_panel_reset(panel);
if (rc) {
pr_err("[%s] failed to reset panel, rc=%d\n", panel->name, rc);
goto error_disable_gpio;
}
rc = dsi_panel_exd_enable(panel);
if (rc) {
pr_err("[%s] failed to reset panel, rc=%d\n", panel->name, rc);
dsi_panel_exd_disable(panel);
goto error_disable_gpio;
}
goto exit;
error_disable_gpio:
if (gpio_is_valid(panel->reset_config.disp_en_gpio))
gpio_set_value(panel->reset_config.disp_en_gpio, 0);
if (gpio_is_valid(panel->bl_config.en_gpio))
gpio_set_value(panel->bl_config.en_gpio, 0);
(void)dsi_panel_set_pinctrl_state(panel, false);
error_disable_vregs:
(void)dsi_pwr_enable_regulator(&panel->power_info, false);
exit:
return rc;
}
static int dsi_panel_power_off(struct dsi_panel *panel)
{
int rc = 0;
dsi_panel_exd_disable(panel);
if (gpio_is_valid(panel->reset_config.disp_en_gpio))
gpio_set_value(panel->reset_config.disp_en_gpio, 0);
if (gpio_is_valid(panel->reset_config.reset_gpio))
gpio_set_value(panel->reset_config.reset_gpio, 0);
if (gpio_is_valid(panel->reset_config.lcd_mode_sel_gpio))
gpio_set_value(panel->reset_config.lcd_mode_sel_gpio, 0);
rc = dsi_panel_set_pinctrl_state(panel, false);
if (rc) {
pr_err("[%s] failed set pinctrl state, rc=%d\n", panel->name,
rc);
}
rc = dsi_pwr_enable_regulator(&panel->power_info, false);
if (rc)
pr_err("[%s] failed to enable vregs, rc=%d\n", panel->name, rc);
return rc;
}
static int dsi_panel_tx_cmd_set(struct dsi_panel *panel,
enum dsi_cmd_set_type type)
{
int rc = 0, i = 0;
ssize_t len;
struct dsi_cmd_desc *cmds;
u32 count;
enum dsi_cmd_set_state state;
struct dsi_display_mode *mode;
const struct mipi_dsi_host_ops *ops = panel->host->ops;
if (!panel || !panel->cur_mode)
return -EINVAL;
if (panel->type == EXT_BRIDGE)
return 0;
mode = panel->cur_mode;
cmds = mode->priv_info->cmd_sets[type].cmds;
count = mode->priv_info->cmd_sets[type].count;
state = mode->priv_info->cmd_sets[type].state;
if (count == 0) {
pr_debug("[%s] No commands to be sent for state(%d)\n",
panel->name, type);
goto error;
}
for (i = 0; i < count; i++) {
if (state == DSI_CMD_SET_STATE_LP)
cmds->msg.flags |= MIPI_DSI_MSG_USE_LPM;
if (cmds->last_command)
cmds->msg.flags |= MIPI_DSI_MSG_LASTCOMMAND;
len = ops->transfer(panel->host, &cmds->msg);
if (len < 0) {
rc = len;
pr_err("failed to set cmds(%d), rc=%d\n", type, rc);
goto error;
}
if (cmds->post_wait_ms)
usleep_range(cmds->post_wait_ms*1000,
((cmds->post_wait_ms*1000)+10));
cmds++;
}
error:
return rc;
}
static int dsi_panel_pinctrl_deinit(struct dsi_panel *panel)
{
int rc = 0;
devm_pinctrl_put(panel->pinctrl.pinctrl);
return rc;
}
static int dsi_panel_pinctrl_init(struct dsi_panel *panel)
{
int rc = 0;
/* TODO: pinctrl is defined in dsi dt node */
panel->pinctrl.pinctrl = devm_pinctrl_get(panel->parent);
if (IS_ERR_OR_NULL(panel->pinctrl.pinctrl)) {
rc = PTR_ERR(panel->pinctrl.pinctrl);
pr_err("failed to get pinctrl, rc=%d\n", rc);
goto error;
}
panel->pinctrl.active = pinctrl_lookup_state(panel->pinctrl.pinctrl,
"panel_active");
if (IS_ERR_OR_NULL(panel->pinctrl.active)) {
rc = PTR_ERR(panel->pinctrl.active);
pr_err("failed to get pinctrl active state, rc=%d\n", rc);
goto error;
}
panel->pinctrl.suspend =
pinctrl_lookup_state(panel->pinctrl.pinctrl, "panel_suspend");
if (IS_ERR_OR_NULL(panel->pinctrl.suspend)) {
rc = PTR_ERR(panel->pinctrl.suspend);
pr_err("failed to get pinctrl suspend state, rc=%d\n", rc);
goto error;
}
error:
return rc;
}
#ifdef CONFIG_LEDS_TRIGGERS
static int dsi_panel_led_bl_register(struct dsi_panel *panel,
struct dsi_backlight_config *bl)
{
int rc = 0;
led_trigger_register_simple("bkl-trigger", &bl->wled);
/* LED APIs don't tell us directly whether a classdev has yet
* been registered to service this trigger. Until classdev is
* registered, calling led_trigger has no effect, and doesn't
* fail. Classdevs are associated with any registered triggers
* when they do register, but that is too late for FBCon.
* Check the cdev list directly and defer if appropriate.
*/
if (!bl->wled) {
pr_err("[%s] backlight registration failed\n", panel->name);
rc = -EINVAL;
} else {
read_lock(&bl->wled->leddev_list_lock);
if (list_empty(&bl->wled->led_cdevs))
rc = -EPROBE_DEFER;
read_unlock(&bl->wled->leddev_list_lock);
if (rc) {
pr_info("[%s] backlight %s not ready, defer probe\n",
panel->name, bl->wled->name);
led_trigger_unregister_simple(bl->wled);
}
}
return rc;
}
#else
static int dsi_panel_led_bl_register(struct dsi_panel *panel,
struct dsi_backlight_config *bl)
{
return 0;
}
#endif
static int dsi_panel_update_backlight(struct dsi_panel *panel,
u32 bl_lvl)
{
int rc = 0;
struct mipi_dsi_device *dsi;
if (!panel || (bl_lvl > 0xffff)) {
pr_err("invalid params\n");
return -EINVAL;
}
dsi = &panel->mipi_device;
rc = mipi_dsi_dcs_set_display_brightness(dsi, bl_lvl);
if (rc < 0)
pr_err("failed to update dcs backlight:%d\n", bl_lvl);
return rc;
}
int dsi_panel_set_backlight(struct dsi_panel *panel, u32 bl_lvl)
{
int rc = 0;
struct dsi_backlight_config *bl = &panel->bl_config;
if (panel->type == EXT_BRIDGE)
return 0;
pr_debug("backlight type:%d lvl:%d\n", bl->type, bl_lvl);
switch (bl->type) {
case DSI_BACKLIGHT_WLED:
led_trigger_event(bl->wled, bl_lvl);
break;
case DSI_BACKLIGHT_DCS:
rc = dsi_panel_update_backlight(panel, bl_lvl);
break;
default:
pr_err("Backlight type(%d) not supported\n", bl->type);
rc = -ENOTSUPP;
}
return rc;
}
static int dsi_panel_bl_register(struct dsi_panel *panel)
{
int rc = 0;
struct dsi_backlight_config *bl = &panel->bl_config;
switch (bl->type) {
case DSI_BACKLIGHT_WLED:
rc = dsi_panel_led_bl_register(panel, bl);
break;
case DSI_BACKLIGHT_DCS:
break;
default:
pr_err("Backlight type(%d) not supported\n", bl->type);
rc = -ENOTSUPP;
goto error;
}
error:
return rc;
}
static int dsi_panel_bl_unregister(struct dsi_panel *panel)
{
int rc = 0;
struct dsi_backlight_config *bl = &panel->bl_config;
switch (bl->type) {
case DSI_BACKLIGHT_WLED:
led_trigger_unregister_simple(bl->wled);
break;
case DSI_BACKLIGHT_DCS:
break;
default:
pr_err("Backlight type(%d) not supported\n", bl->type);
rc = -ENOTSUPP;
goto error;
}
error:
return rc;
}
static int dsi_panel_fw_parse(const struct firmware *fw_entry,
char *id_match, u32 *param_value)
{
int value, numlen = 1, index = 0;
char id[SZ_256];
while (sscanf(fw_entry->data + index,
"%255s %d", id, &value) > 0) {
if (!strcmp(id, id_match)) {
*param_value = value;
return 0;
}
while ((value / 10) > 0) {
value /= 10;
numlen++;
}
index += (strlen(id) + numlen + 1);
numlen = 1;
}
return -EINVAL;
}
static int dsi_panel_parse(struct device_node *of_node,
const struct firmware *fw_entry, char *id_match, u32 *val)
{
if (fw_entry && fw_entry->data)
return dsi_panel_fw_parse(fw_entry, id_match, val);
else
return of_property_read_u32(of_node, id_match, val);
return 0;
}
static int dsi_panel_parse_timing(struct device *parent,
struct dsi_mode_info *mode, const char *name,
struct device_node *of_node)
{
int fw = 0, rc = 0;
u64 tmp64;
struct dsi_display_mode *display_mode;
const struct firmware *fw_entry = NULL;
char *fw_name = "dsi_prop";
if (strcmp(name, "Simulator video mode dsi panel") == 0)
fw = request_firmware(&fw_entry, fw_name, parent);
if (fw)
fw_entry = NULL;
display_mode = container_of(mode, struct dsi_display_mode, timing);
rc = of_property_read_u64(of_node,
"qcom,mdss-dsi-panel-clockrate", &tmp64);
if (rc == -EOVERFLOW) {
tmp64 = 0;
rc = of_property_read_u32(of_node,
"qcom,mdss-dsi-panel-clockrate", (u32 *)&tmp64);
}
mode->clk_rate_hz = !rc ? tmp64 : 0;
display_mode->priv_info->clk_rate_hz = mode->clk_rate_hz;
rc = dsi_panel_parse(of_node, fw_entry,
"qcom,mdss-dsi-panel-framerate", &mode->refresh_rate);
if (rc) {
pr_err("failed to read qcom,mdss-dsi-panel-framerate, rc=%d\n",
rc);
goto error;
}
rc = dsi_panel_parse(of_node, fw_entry,
"qcom,mdss-dsi-panel-width", &mode->h_active);
if (rc) {
pr_err("failed to read qcom,mdss-dsi-panel-width, rc=%d\n", rc);
goto error;
}
rc = dsi_panel_parse(of_node, fw_entry,
"qcom,mdss-dsi-h-front-porch", &mode->h_front_porch);
if (rc) {
pr_err("failed to read qcom,mdss-dsi-h-front-porch, rc=%d\n",
rc);
goto error;
}
rc = dsi_panel_parse(of_node, fw_entry,
"qcom,mdss-dsi-h-back-porch", &mode->h_back_porch);
if (rc) {
pr_err("failed to read qcom,mdss-dsi-h-back-porch, rc=%d\n",
rc);
goto error;
}
rc = dsi_panel_parse(of_node, fw_entry,
"qcom,mdss-dsi-h-pulse-width", &mode->h_sync_width);
if (rc) {
pr_err("failed to read qcom,mdss-dsi-h-pulse-width, rc=%d\n",
rc);
goto error;
}
rc = dsi_panel_parse(of_node, fw_entry,
"qcom,mdss-dsi-h-sync-skew", &mode->h_skew);
if (rc)
pr_err("qcom,mdss-dsi-h-sync-skew is not defined, rc=%d\n", rc);
pr_debug("panel horz active:%d front_portch:%d back_porch:%d sync_skew:%d\n",
mode->h_active, mode->h_front_porch, mode->h_back_porch,
mode->h_sync_width);
rc = dsi_panel_parse(of_node, fw_entry,
"qcom,mdss-dsi-panel-height", &mode->v_active);
if (rc) {
pr_err("failed to read qcom,mdss-dsi-panel-height, rc=%d\n",
rc);
goto error;
}
rc = dsi_panel_parse(of_node, fw_entry,
"qcom,mdss-dsi-v-back-porch", &mode->v_back_porch);
if (rc) {
pr_err("failed to read qcom,mdss-dsi-v-back-porch, rc=%d\n",
rc);
goto error;
}
rc = dsi_panel_parse(of_node, fw_entry,
"qcom,mdss-dsi-v-front-porch", &mode->v_front_porch);
if (rc) {
pr_err("failed to read qcom,mdss-dsi-v-back-porch, rc=%d\n",
rc);
goto error;
}
rc = dsi_panel_parse(of_node, fw_entry,
"qcom,mdss-dsi-v-pulse-width", &mode->v_sync_width);
if (rc) {
pr_err("failed to read qcom,mdss-dsi-v-pulse-width, rc=%d\n",
rc);
goto error;
}
pr_debug("panel vert active:%d front_portch:%d back_porch:%d pulse_width:%d\n",
mode->v_active, mode->v_front_porch, mode->v_back_porch,
mode->v_sync_width);
error:
return rc;
}
static int dsi_panel_parse_pixel_format(struct dsi_host_common_cfg *host,
struct device_node *of_node,
const char *name)
{
int rc = 0;
u32 bpp = 0;
enum dsi_pixel_format fmt;
const char *packing;
rc = of_property_read_u32(of_node, "qcom,mdss-dsi-bpp", &bpp);
if (rc) {
pr_err("[%s] failed to read qcom,mdss-dsi-bpp, rc=%d\n",
name, rc);
return rc;
}
switch (bpp) {
case 3:
fmt = DSI_PIXEL_FORMAT_RGB111;
break;
case 8:
fmt = DSI_PIXEL_FORMAT_RGB332;
break;
case 12:
fmt = DSI_PIXEL_FORMAT_RGB444;
break;
case 16:
fmt = DSI_PIXEL_FORMAT_RGB565;
break;
case 18:
fmt = DSI_PIXEL_FORMAT_RGB666;
break;
case 24:
default:
fmt = DSI_PIXEL_FORMAT_RGB888;
break;
}
if (fmt == DSI_PIXEL_FORMAT_RGB666) {
packing = of_get_property(of_node,
"qcom,mdss-dsi-pixel-packing",
NULL);
if (packing && !strcmp(packing, "loose"))
fmt = DSI_PIXEL_FORMAT_RGB666_LOOSE;
}
host->dst_format = fmt;
return rc;
}
static int dsi_panel_parse_lane_states(struct dsi_host_common_cfg *host,
struct device_node *of_node,
const char *name)
{
int rc = 0;
bool lane_enabled;
lane_enabled = of_property_read_bool(of_node,
"qcom,mdss-dsi-lane-0-state");
host->data_lanes |= (lane_enabled ? DSI_DATA_LANE_0 : 0);
lane_enabled = of_property_read_bool(of_node,
"qcom,mdss-dsi-lane-1-state");
host->data_lanes |= (lane_enabled ? DSI_DATA_LANE_1 : 0);
lane_enabled = of_property_read_bool(of_node,
"qcom,mdss-dsi-lane-2-state");
host->data_lanes |= (lane_enabled ? DSI_DATA_LANE_2 : 0);
lane_enabled = of_property_read_bool(of_node,
"qcom,mdss-dsi-lane-3-state");
host->data_lanes |= (lane_enabled ? DSI_DATA_LANE_3 : 0);
if (host->data_lanes == 0) {
pr_err("[%s] No data lanes are enabled, rc=%d\n", name, rc);
rc = -EINVAL;
}
return rc;
}
static int dsi_panel_parse_color_swap(struct dsi_host_common_cfg *host,
struct device_node *of_node,
const char *name)
{
int rc = 0;
const char *swap_mode;
swap_mode = of_get_property(of_node, "qcom,mdss-dsi-color-order", NULL);
if (swap_mode) {
if (!strcmp(swap_mode, "rgb_swap_rgb")) {
host->swap_mode = DSI_COLOR_SWAP_RGB;
} else if (!strcmp(swap_mode, "rgb_swap_rbg")) {
host->swap_mode = DSI_COLOR_SWAP_RBG;
} else if (!strcmp(swap_mode, "rgb_swap_brg")) {
host->swap_mode = DSI_COLOR_SWAP_BRG;
} else if (!strcmp(swap_mode, "rgb_swap_grb")) {
host->swap_mode = DSI_COLOR_SWAP_GRB;
} else if (!strcmp(swap_mode, "rgb_swap_gbr")) {
host->swap_mode = DSI_COLOR_SWAP_GBR;
} else {
pr_err("[%s] Unrecognized color order-%s\n",
name, swap_mode);
rc = -EINVAL;
}
} else {
pr_debug("[%s] Falling back to default color order\n", name);
host->swap_mode = DSI_COLOR_SWAP_RGB;
}
/* bit swap on color channel is not defined in dt */
host->bit_swap_red = false;
host->bit_swap_green = false;
host->bit_swap_blue = false;
return rc;
}
static int dsi_panel_parse_triggers(struct dsi_host_common_cfg *host,
struct device_node *of_node,
const char *name)
{
const char *trig;
int rc = 0;
trig = of_get_property(of_node, "qcom,mdss-dsi-mdp-trigger", NULL);
if (trig) {
if (!strcmp(trig, "none")) {
host->mdp_cmd_trigger = DSI_TRIGGER_NONE;
} else if (!strcmp(trig, "trigger_te")) {
host->mdp_cmd_trigger = DSI_TRIGGER_TE;
} else if (!strcmp(trig, "trigger_sw")) {
host->mdp_cmd_trigger = DSI_TRIGGER_SW;
} else if (!strcmp(trig, "trigger_sw_te")) {
host->mdp_cmd_trigger = DSI_TRIGGER_SW_TE;
} else {
pr_err("[%s] Unrecognized mdp trigger type (%s)\n",
name, trig);
rc = -EINVAL;
}
} else {
pr_debug("[%s] Falling back to default MDP trigger\n",
name);
host->mdp_cmd_trigger = DSI_TRIGGER_SW;
}
trig = of_get_property(of_node, "qcom,mdss-dsi-dma-trigger", NULL);
if (trig) {
if (!strcmp(trig, "none")) {
host->dma_cmd_trigger = DSI_TRIGGER_NONE;
} else if (!strcmp(trig, "trigger_te")) {
host->dma_cmd_trigger = DSI_TRIGGER_TE;
} else if (!strcmp(trig, "trigger_sw")) {
host->dma_cmd_trigger = DSI_TRIGGER_SW;
} else if (!strcmp(trig, "trigger_sw_seof")) {
host->dma_cmd_trigger = DSI_TRIGGER_SW_SEOF;
} else if (!strcmp(trig, "trigger_sw_te")) {
host->dma_cmd_trigger = DSI_TRIGGER_SW_TE;
} else {
pr_err("[%s] Unrecognized mdp trigger type (%s)\n",
name, trig);
rc = -EINVAL;
}
} else {
pr_debug("[%s] Falling back to default MDP trigger\n", name);
host->dma_cmd_trigger = DSI_TRIGGER_SW;
}
rc = of_property_read_u32(of_node, "qcom,mdss-dsi-te-pin-select",
&host->te_mode);
if (rc) {
pr_warn("[%s] fallback to default te-pin-select\n", name);
host->te_mode = 1;
rc = 0;
}
return rc;
}
static int dsi_panel_parse_misc_host_config(struct dsi_host_common_cfg *host,
struct device_node *of_node,
const char *name)
{
u32 val = 0;
int rc = 0;
rc = of_property_read_u32(of_node, "qcom,mdss-dsi-t-clk-post", &val);
if (rc) {
pr_debug("[%s] Fallback to default t_clk_post value\n", name);
host->t_clk_post = 0x03;
} else {
host->t_clk_post = val;
pr_debug("[%s] t_clk_post = %d\n", name, val);
}
val = 0;
rc = of_property_read_u32(of_node, "qcom,mdss-dsi-t-clk-pre", &val);
if (rc) {
pr_debug("[%s] Fallback to default t_clk_pre value\n", name);
host->t_clk_pre = 0x24;
} else {
host->t_clk_pre = val;
pr_debug("[%s] t_clk_pre = %d\n", name, val);
}
host->ignore_rx_eot = of_property_read_bool(of_node,
"qcom,mdss-dsi-rx-eot-ignore");
host->append_tx_eot = of_property_read_bool(of_node,
"qcom,mdss-dsi-tx-eot-append");
host->force_hs_clk_lane = of_property_read_bool(of_node,
"qcom,mdss-dsi-force-clock-lane-hs");
return 0;
}
static int dsi_panel_parse_host_config(struct dsi_panel *panel,
struct device_node *of_node)
{
int rc = 0;
rc = dsi_panel_parse_pixel_format(&panel->host_config, of_node,
panel->name);
if (rc) {
pr_err("[%s] failed to get pixel format, rc=%d\n",
panel->name, rc);
goto error;
}
rc = dsi_panel_parse_lane_states(&panel->host_config, of_node,
panel->name);
if (rc) {
pr_err("[%s] failed to parse lane states, rc=%d\n",
panel->name, rc);
goto error;
}
rc = dsi_panel_parse_color_swap(&panel->host_config, of_node,
panel->name);
if (rc) {
pr_err("[%s] failed to parse color swap config, rc=%d\n",
panel->name, rc);
goto error;
}
rc = dsi_panel_parse_triggers(&panel->host_config, of_node,
panel->name);
if (rc) {
pr_err("[%s] failed to parse triggers, rc=%d\n",
panel->name, rc);
goto error;
}
rc = dsi_panel_parse_misc_host_config(&panel->host_config, of_node,
panel->name);
if (rc) {
pr_err("[%s] failed to parse misc host config, rc=%d\n",
panel->name, rc);
goto error;
}
error:
return rc;
}
static int dsi_panel_parse_dyn_clk_caps(struct dsi_dyn_clk_caps *dyn_clk_caps,
struct device_node *of_node,
const char *name)
{
int rc = 0;
bool supported = false;
supported = of_property_read_bool(of_node, "qcom,dsi-dyn-clk-enable");
if (!supported) {
dyn_clk_caps->dyn_clk_support = false;
return rc;
}
of_find_property(of_node, "qcom,dsi-dyn-clk-list",
&dyn_clk_caps->bit_clk_list_len);
dyn_clk_caps->bit_clk_list_len /= sizeof(u32);
if (dyn_clk_caps->bit_clk_list_len < 1) {
pr_err("[%s] failed to get supported bit clk list\n", name);
return -EINVAL;
}
dyn_clk_caps->bit_clk_list = kcalloc(dyn_clk_caps->bit_clk_list_len,
sizeof(u32), GFP_KERNEL);
if (!dyn_clk_caps->bit_clk_list)
return -ENOMEM;
rc = of_property_read_u32_array(of_node, "qcom,dsi-dyn-clk-list",
dyn_clk_caps->bit_clk_list,
dyn_clk_caps->bit_clk_list_len);
if (rc) {
pr_err("[%s] failed to parse supported bit clk list\n", name);
return -EINVAL;
}
dyn_clk_caps->dyn_clk_support = true;
return 0;
}
static int dsi_panel_parse_dfps_caps(struct dsi_dfps_capabilities *dfps_caps,
struct device_node *of_node,
const char *name)
{
int rc = 0;
bool supported = false;
const char *type;
u32 i;
supported = of_property_read_bool(of_node,
"qcom,mdss-dsi-pan-enable-dynamic-fps");
if (!supported) {
pr_debug("[%s] DFPS is not supported\n", name);
dfps_caps->dfps_support = false;
return rc;
}
type = of_get_property(of_node,
"qcom,mdss-dsi-pan-fps-update",
NULL);
if (!type) {
pr_err("[%s] dfps type not defined\n", name);
rc = -EINVAL;
goto error;
} else if (!strcmp(type, "dfps_suspend_resume_mode")) {
dfps_caps->type = DSI_DFPS_SUSPEND_RESUME;
} else if (!strcmp(type, "dfps_immediate_clk_mode")) {
dfps_caps->type = DSI_DFPS_IMMEDIATE_CLK;
} else if (!strcmp(type, "dfps_immediate_porch_mode_hfp")) {
dfps_caps->type = DSI_DFPS_IMMEDIATE_HFP;
} else if (!strcmp(type, "dfps_immediate_porch_mode_vfp")) {
dfps_caps->type = DSI_DFPS_IMMEDIATE_VFP;
} else {
pr_err("[%s] dfps type is not recognized\n", name);
rc = -EINVAL;
goto error;
}
of_find_property(of_node, "qcom,dsi-supported-dfps-list",
&dfps_caps->dfps_list_len);
dfps_caps->dfps_list_len /= sizeof(u32);
if (dfps_caps->dfps_list_len < 1) {
pr_err("[%s] dfps refresh list not present\n", name);
rc = -EINVAL;
goto error;
}
dfps_caps->dfps_list = kcalloc(dfps_caps->dfps_list_len, sizeof(u32),
GFP_KERNEL);
if (!dfps_caps->dfps_list) {
rc = -ENOMEM;
goto error;
}
rc = of_property_read_u32_array(of_node, "qcom,dsi-supported-dfps-list",
dfps_caps->dfps_list,
dfps_caps->dfps_list_len);
if (rc) {
pr_err("[%s] dfps refresh rate list parse failed\n", name);
rc = -EINVAL;
goto error;
}
dfps_caps->dfps_support = true;
/* calculate max and min fps */
dfps_caps->max_refresh_rate = dfps_caps->dfps_list[0];
dfps_caps->min_refresh_rate = dfps_caps->dfps_list[0];
for (i = 1; i < dfps_caps->dfps_list_len; i++) {
if (dfps_caps->dfps_list[i] < dfps_caps->min_refresh_rate)
dfps_caps->min_refresh_rate = dfps_caps->dfps_list[i];
else if (dfps_caps->dfps_list[i] > dfps_caps->max_refresh_rate)
dfps_caps->max_refresh_rate = dfps_caps->dfps_list[i];
}
error:
return rc;
}
static int dsi_panel_parse_video_host_config(struct dsi_video_engine_cfg *cfg,
struct device_node *of_node,
const char *name)
{
int rc = 0;
const char *traffic_mode;
u32 vc_id = 0;
u32 val = 0;
u32 line_no = 0;
rc = of_property_read_u32(of_node, "qcom,mdss-dsi-h-sync-pulse", &val);
if (rc) {
pr_debug("[%s] fallback to default h-sync-pulse\n", name);
cfg->pulse_mode_hsa_he = false;
} else if (val == 1) {
cfg->pulse_mode_hsa_he = true;
} else if (val == 0) {
cfg->pulse_mode_hsa_he = false;
} else {
pr_err("[%s] Unrecognized value for mdss-dsi-h-sync-pulse\n",
name);
rc = -EINVAL;
goto error;
}
cfg->hfp_lp11_en = of_property_read_bool(of_node,
"qcom,mdss-dsi-hfp-power-mode");
cfg->hbp_lp11_en = of_property_read_bool(of_node,
"qcom,mdss-dsi-hbp-power-mode");
cfg->hsa_lp11_en = of_property_read_bool(of_node,
"qcom,mdss-dsi-hsa-power-mode");
cfg->last_line_interleave_en = of_property_read_bool(of_node,
"qcom,mdss-dsi-last-line-interleave");
cfg->eof_bllp_lp11_en = of_property_read_bool(of_node,
"qcom,mdss-dsi-bllp-eof-power-mode");
cfg->bllp_lp11_en = of_property_read_bool(of_node,
"qcom,mdss-dsi-bllp-power-mode");
traffic_mode = of_get_property(of_node,
"qcom,mdss-dsi-traffic-mode",
NULL);
if (!traffic_mode) {
pr_debug("[%s] Falling back to default traffic mode\n", name);
cfg->traffic_mode = DSI_VIDEO_TRAFFIC_SYNC_PULSES;
} else if (!strcmp(traffic_mode, "non_burst_sync_pulse")) {
cfg->traffic_mode = DSI_VIDEO_TRAFFIC_SYNC_PULSES;
} else if (!strcmp(traffic_mode, "non_burst_sync_event")) {
cfg->traffic_mode = DSI_VIDEO_TRAFFIC_SYNC_START_EVENTS;
} else if (!strcmp(traffic_mode, "burst_mode")) {
cfg->traffic_mode = DSI_VIDEO_TRAFFIC_BURST_MODE;
} else {
pr_err("[%s] Unrecognized traffic mode-%s\n", name,
traffic_mode);
rc = -EINVAL;
goto error;
}
rc = of_property_read_u32(of_node, "qcom,mdss-dsi-virtual-channel-id",
&vc_id);
if (rc) {
pr_debug("[%s] Fallback to default vc id\n", name);
cfg->vc_id = 0;
} else {
cfg->vc_id = vc_id;
}
rc = of_property_read_u32(of_node, "qcom,mdss-dsi-dma-schedule-line",
&line_no);
if (rc) {
pr_debug("[%s] set default dma scheduling line no\n", name);
cfg->dma_sched_line = 0x1;
/* do not fail since we have default value */
rc = 0;
} else {
cfg->dma_sched_line = line_no;
}
error:
return rc;
}
static int dsi_panel_parse_cmd_host_config(struct dsi_cmd_engine_cfg *cfg,
struct device_node *of_node,
const char *name)
{
u32 val = 0;
int rc = 0;
rc = of_property_read_u32(of_node, "qcom,mdss-dsi-wr-mem-start", &val);
if (rc) {
pr_debug("[%s] Fallback to default wr-mem-start\n", name);
cfg->wr_mem_start = 0x2C;
} else {
cfg->wr_mem_start = val;
}
val = 0;
rc = of_property_read_u32(of_node, "qcom,mdss-dsi-wr-mem-continue",
&val);
if (rc) {
pr_debug("[%s] Fallback to default wr-mem-continue\n", name);
cfg->wr_mem_continue = 0x3C;
} else {
cfg->wr_mem_continue = val;
}
/* TODO: fix following */
cfg->max_cmd_packets_interleave = 0;
val = 0;
rc = of_property_read_u32(of_node, "qcom,mdss-dsi-te-dcs-command",
&val);
if (rc) {
pr_debug("[%s] fallback to default te-dcs-cmd\n", name);
cfg->insert_dcs_command = true;
} else if (val == 1) {
cfg->insert_dcs_command = true;
} else if (val == 0) {
cfg->insert_dcs_command = false;
} else {
pr_err("[%s] Unrecognized value for mdss-dsi-te-dcs-command\n",
name);
rc = -EINVAL;
goto error;
}
if (of_property_read_u32(of_node, "qcom,mdss-mdp-transfer-time-us",
&val)) {
pr_debug("[%s] Fallback to default transfer-time-us\n", name);
cfg->mdp_transfer_time_us = DEFAULT_MDP_TRANSFER_TIME;
} else {
cfg->mdp_transfer_time_us = val;
}
error:
return rc;
}
static int dsi_panel_parse_panel_mode(struct dsi_panel *panel,
struct device_node *of_node)
{
int rc = 0;
enum dsi_op_mode panel_mode;
const char *mode;
mode = of_get_property(of_node, "qcom,mdss-dsi-panel-type", NULL);
if (!mode) {
pr_debug("[%s] Fallback to default panel mode\n", panel->name);
panel_mode = DSI_OP_VIDEO_MODE;
} else if (!strcmp(mode, "dsi_video_mode")) {
panel_mode = DSI_OP_VIDEO_MODE;
} else if (!strcmp(mode, "dsi_cmd_mode")) {
panel_mode = DSI_OP_CMD_MODE;
} else {
pr_err("[%s] Unrecognized panel type-%s\n", panel->name, mode);
rc = -EINVAL;
goto error;
}
if (panel_mode == DSI_OP_VIDEO_MODE) {
rc = dsi_panel_parse_video_host_config(&panel->video_config,
of_node,
panel->name);
if (rc) {
pr_err("[%s] Failed to parse video host cfg, rc=%d\n",
panel->name, rc);
goto error;
}
}
if (panel_mode == DSI_OP_CMD_MODE) {
rc = dsi_panel_parse_cmd_host_config(&panel->cmd_config,
of_node,
panel->name);
if (rc) {
pr_err("[%s] Failed to parse cmd host config, rc=%d\n",
panel->name, rc);
goto error;
}
}
panel->panel_mode = panel_mode;
error:
return rc;
}
static int dsi_panel_parse_phy_props(struct dsi_panel_phy_props *props,
struct device_node *of_node,
const char *name)
{
int rc = 0;
u32 val = 0;
const char *str;
rc = of_property_read_u32(of_node,
"qcom,mdss-pan-physical-width-dimension",
&val);
if (rc) {
pr_debug("[%s] Physical panel width is not defined\n", name);
props->panel_width_mm = 0;
rc = 0;
} else {
props->panel_width_mm = val;
}
rc = of_property_read_u32(of_node,
"qcom,mdss-pan-physical-height-dimension",
&val);
if (rc) {
pr_debug("[%s] Physical panel height is not defined\n", name);
props->panel_height_mm = 0;
rc = 0;
} else {
props->panel_height_mm = val;
}
str = of_get_property(of_node, "qcom,mdss-dsi-panel-orientation", NULL);
if (!str) {
props->rotation = DSI_PANEL_ROTATE_NONE;
} else if (!strcmp(str, "180")) {
props->rotation = DSI_PANEL_ROTATE_HV_FLIP;
} else if (!strcmp(str, "hflip")) {
props->rotation = DSI_PANEL_ROTATE_H_FLIP;
} else if (!strcmp(str, "vflip")) {
props->rotation = DSI_PANEL_ROTATE_V_FLIP;
} else {
pr_err("[%s] Unrecognized panel rotation-%s\n", name, str);
rc = -EINVAL;
goto error;
}
error:
return rc;
}
const char *cmd_set_prop_map[DSI_CMD_SET_MAX] = {
"qcom,mdss-dsi-pre-on-command",
"qcom,mdss-dsi-on-command",
"qcom,mdss-dsi-post-panel-on-command",
"qcom,mdss-dsi-pre-off-command",
"qcom,mdss-dsi-off-command",
"qcom,mdss-dsi-post-off-command",
"qcom,mdss-dsi-pre-res-switch",
"qcom,mdss-dsi-res-switch",
"qcom,mdss-dsi-post-res-switch",
"qcom,cmd-to-video-mode-switch-commands",
"qcom,cmd-to-video-mode-post-switch-commands",
"qcom,video-to-cmd-mode-switch-commands",
"qcom,video-to-cmd-mode-post-switch-commands",
"qcom,mdss-dsi-panel-status-command",
"qcom,mdss-dsi-lp1-command",
"qcom,mdss-dsi-lp2-command",
"qcom,mdss-dsi-nolp-command",
"PPS not parsed from DTSI, generated dynamically",
"ROI not parsed from DTSI, generated dynamically",
"qcom,mdss-dsi-timing-switch-command",
"qcom,mdss-dsi-post-mode-switch-on-command",
};
const char *cmd_set_state_map[DSI_CMD_SET_MAX] = {
"qcom,mdss-dsi-pre-on-command-state",
"qcom,mdss-dsi-on-command-state",
"qcom,mdss-dsi-post-on-command-state",
"qcom,mdss-dsi-pre-off-command-state",
"qcom,mdss-dsi-off-command-state",
"qcom,mdss-dsi-post-off-command-state",
"qcom,mdss-dsi-pre-res-switch-state",
"qcom,mdss-dsi-res-switch-state",
"qcom,mdss-dsi-post-res-switch-state",
"qcom,cmd-to-video-mode-switch-commands-state",
"qcom,cmd-to-video-mode-post-switch-commands-state",
"qcom,video-to-cmd-mode-switch-commands-state",
"qcom,video-to-cmd-mode-post-switch-commands-state",
"qcom,mdss-dsi-panel-status-command-state",
"qcom,mdss-dsi-lp1-command-state",
"qcom,mdss-dsi-lp2-command-state",
"qcom,mdss-dsi-nolp-command-state",
"PPS not parsed from DTSI, generated dynamically",
"ROI not parsed from DTSI, generated dynamically",
"qcom,mdss-dsi-timing-switch-command-state",
"qcom,mdss-dsi-post-mode-switch-on-command-state",
};
static int dsi_panel_get_cmd_pkt_count(const char *data, u32 length, u32 *cnt)
{
const u32 cmd_set_min_size = 7;
u32 count = 0;
u32 packet_length;
u32 tmp;
while (length >= cmd_set_min_size) {
packet_length = cmd_set_min_size;
tmp = ((data[5] << 8) | (data[6]));
packet_length += tmp;
if (packet_length > length) {
pr_err("format error\n");
return -EINVAL;
}
length -= packet_length;
data += packet_length;
count++;
};
*cnt = count;
return 0;
}
static int dsi_panel_create_cmd_packets(const char *data,
u32 length,
u32 count,
struct dsi_cmd_desc *cmd)
{
int rc = 0;
int i, j;
u8 *payload;
for (i = 0; i < count; i++) {
u32 size;
cmd[i].msg.type = data[0];
cmd[i].last_command = (data[1] == 1 ? true : false);
cmd[i].msg.channel = data[2];
cmd[i].msg.flags |= (data[3] == 1 ? MIPI_DSI_MSG_REQ_ACK : 0);
cmd[i].msg.ctrl = 0;
cmd[i].post_wait_ms = cmd[i].msg.wait_ms = data[4];
cmd[i].msg.tx_len = ((data[5] << 8) | (data[6]));
size = cmd[i].msg.tx_len * sizeof(u8);
payload = kzalloc(size, GFP_KERNEL);
if (!payload) {
rc = -ENOMEM;
goto error_free_payloads;
}
for (j = 0; j < cmd[i].msg.tx_len; j++)
payload[j] = data[7 + j];
cmd[i].msg.tx_buf = payload;
data += (7 + cmd[i].msg.tx_len);
}
return rc;
error_free_payloads:
for (i = i - 1; i >= 0; i--) {
kfree(cmd[i].msg.tx_buf);
cmd[i].msg.tx_buf = NULL;
}
return rc;
}
static void dsi_panel_destroy_cmds_packets_buf(struct dsi_panel_cmd_set *set)
{
u32 i = 0;
struct dsi_cmd_desc *cmd;
for (i = 0; i < set->count; i++) {
cmd = &set->cmds[i];
kfree(cmd->msg.tx_buf);
cmd->msg.tx_buf = NULL;
}
}
static void dsi_panel_destroy_cmd_packets(struct dsi_panel_cmd_set *set)
{
dsi_panel_destroy_cmds_packets_buf(set);
kfree(set->cmds);
set->count = 0;
}
static int dsi_panel_alloc_cmd_packets(struct dsi_panel_cmd_set *cmd,
u32 packet_count)
{
u32 size;
size = packet_count * sizeof(*cmd->cmds);
cmd->cmds = kzalloc(size, GFP_KERNEL);
if (!cmd->cmds)
return -ENOMEM;
cmd->count = packet_count;
return 0;
}
static int dsi_panel_parse_cmd_sets_sub(struct dsi_panel_cmd_set *cmd,
enum dsi_cmd_set_type type,
struct device_node *of_node)
{
int rc = 0;
u32 length = 0;
const char *data;
const char *state;
u32 packet_count = 0;
data = of_get_property(of_node, cmd_set_prop_map[type], &length);
if (!data) {
pr_debug("%s commands not defined\n", cmd_set_prop_map[type]);
rc = -ENOTSUPP;
goto error;
}
rc = dsi_panel_get_cmd_pkt_count(data, length, &packet_count);
if (rc) {
pr_err("commands failed, rc=%d\n", rc);
goto error;
}
pr_debug("[%s] packet-count=%d, %d\n", cmd_set_prop_map[type],
packet_count, length);
rc = dsi_panel_alloc_cmd_packets(cmd, packet_count);
if (rc) {
pr_err("failed to allocate cmd packets, rc=%d\n", rc);
goto error;
}
rc = dsi_panel_create_cmd_packets(data, length, packet_count,
cmd->cmds);
if (rc) {
pr_err("failed to create cmd packets, rc=%d\n", rc);
goto error_free_mem;
}
state = of_get_property(of_node, cmd_set_state_map[type], NULL);
if (!state || !strcmp(state, "dsi_lp_mode")) {
cmd->state = DSI_CMD_SET_STATE_LP;
} else if (!strcmp(state, "dsi_hs_mode")) {
cmd->state = DSI_CMD_SET_STATE_HS;
} else {
pr_err("[%s] command state unrecognized-%s\n",
cmd_set_state_map[type], state);
goto error_free_mem;
}
return rc;
error_free_mem:
kfree(cmd->cmds);
cmd->cmds = NULL;
error:
return rc;
}
static int dsi_panel_parse_cmd_sets(
struct dsi_display_mode_priv_info *priv_info,
struct device_node *of_node)
{
int rc = 0;
struct dsi_panel_cmd_set *set;
u32 i;
if (!priv_info) {
pr_err("invalid mode priv info\n");
return -EINVAL;
}
for (i = DSI_CMD_SET_PRE_ON; i < DSI_CMD_SET_MAX; i++) {
set = &priv_info->cmd_sets[i];
set->type = i;
set->count = 0;
if (i == DSI_CMD_SET_PPS) {
rc = dsi_panel_alloc_cmd_packets(set, 1);
if (rc)
pr_err("failed to allocate cmd set %d, rc = %d\n",
i, rc);
set->state = DSI_CMD_SET_STATE_LP;
} else {
rc = dsi_panel_parse_cmd_sets_sub(set, i, of_node);
if (rc)
pr_debug("failed to parse set %d\n", i);
}
}
rc = 0;
return rc;
}
static int dsi_panel_parse_reset_sequence(struct dsi_panel *panel,
struct device_node *of_node)
{
int rc = 0;
int i;
u32 length = 0;
u32 count = 0;
u32 size = 0;
u32 *arr_32 = NULL;
const u32 *arr;
struct dsi_reset_seq *seq;
arr = of_get_property(of_node, "qcom,mdss-dsi-reset-sequence", &length);
if (!arr) {
pr_err("[%s] dsi-reset-sequence not found\n", panel->name);
rc = -EINVAL;
goto error;
}
if (length & 0x1) {
pr_err("[%s] syntax error for dsi-reset-sequence\n",
panel->name);
rc = -EINVAL;
goto error;
}
pr_err("RESET SEQ LENGTH = %d\n", length);
length = length / sizeof(u32);
size = length * sizeof(u32);
arr_32 = kzalloc(size, GFP_KERNEL);
if (!arr_32) {
rc = -ENOMEM;
goto error;
}
rc = of_property_read_u32_array(of_node, "qcom,mdss-dsi-reset-sequence",
arr_32, length);
if (rc) {
pr_err("[%s] cannot read dso-reset-seqience\n", panel->name);
goto error_free_arr_32;
}
count = length / 2;
size = count * sizeof(*seq);
seq = kzalloc(size, GFP_KERNEL);
if (!seq) {
rc = -ENOMEM;
goto error_free_arr_32;
}
panel->reset_config.sequence = seq;
panel->reset_config.count = count;
for (i = 0; i < length; i += 2) {
seq->level = arr_32[i];
seq->sleep_ms = arr_32[i + 1];
seq++;
}
error_free_arr_32:
kfree(arr_32);
error:
return rc;
}
static int dsi_panel_parse_misc_features(struct dsi_panel *panel,
struct device_node *of_node)
{
panel->ulps_enabled =
of_property_read_bool(of_node, "qcom,ulps-enabled");
pr_info("%s: ulps feature %s\n", __func__,
(panel->ulps_enabled ? "enabled" : "disabled"));
panel->ulps_suspend_enabled =
of_property_read_bool(of_node, "qcom,suspend-ulps-enabled");
pr_info("%s: ulps during suspend feature %s", __func__,
(panel->ulps_suspend_enabled ? "enabled" : "disabled"));
panel->te_using_watchdog_timer = of_property_read_bool(of_node,
"qcom,mdss-dsi-te-using-wd");
panel->sync_broadcast_en = of_property_read_bool(of_node,
"qcom,cmd-sync-wait-broadcast");
panel->lp11_init = of_property_read_bool(of_node,
"qcom,mdss-dsi-lp11-init");
return 0;
}
static int dsi_panel_parse_jitter_config(
struct dsi_display_mode *mode,
struct device_node *of_node)
{
int rc;
struct dsi_display_mode_priv_info *priv_info;
u32 jitter[DEFAULT_PANEL_JITTER_ARRAY_SIZE] = {0, 0};
u64 jitter_val = 0;
priv_info = mode->priv_info;
rc = of_property_read_u32_array(of_node, "qcom,mdss-dsi-panel-jitter",
jitter, DEFAULT_PANEL_JITTER_ARRAY_SIZE);
if (rc) {
pr_debug("panel jitter not defined rc=%d\n", rc);
} else {
jitter_val = jitter[0];
jitter_val = div_u64(jitter_val, jitter[1]);
}
if (rc || !jitter_val || (jitter_val > MAX_PANEL_JITTER)) {
priv_info->panel_jitter_numer = DEFAULT_PANEL_JITTER_NUMERATOR;
priv_info->panel_jitter_denom =
DEFAULT_PANEL_JITTER_DENOMINATOR;
} else {
priv_info->panel_jitter_numer = jitter[0];
priv_info->panel_jitter_denom = jitter[1];
}
rc = of_property_read_u32(of_node, "qcom,mdss-dsi-panel-prefill-lines",
&priv_info->panel_prefill_lines);
if (rc) {
pr_debug("panel prefill lines are not defined rc=%d\n", rc);
priv_info->panel_prefill_lines = DEFAULT_PANEL_PREFILL_LINES;
} else if (priv_info->panel_prefill_lines >=
DSI_V_TOTAL(&mode->timing)) {
pr_debug("invalid prefill lines config=%d setting to:%d\n",
priv_info->panel_prefill_lines, DEFAULT_PANEL_PREFILL_LINES);
priv_info->panel_prefill_lines = DEFAULT_PANEL_PREFILL_LINES;
}
return 0;
}
static int dsi_panel_parse_power_cfg(struct device *parent,
struct dsi_panel *panel,
struct device_node *of_node)
{
int rc = 0;
rc = dsi_pwr_of_get_vreg_data(of_node,
&panel->power_info,
"qcom,panel-supply-entries");
if (rc) {
pr_err("[%s] failed to parse vregs\n", panel->name);
goto error;
}
error:
return rc;
}
static int dsi_panel_exd_parse_gpios(struct dsi_panel *panel,
struct device_node *of_node)
{
int rc = 0;
struct dsi_panel_exd_config *e_config = &panel->exd_config;
e_config->display_1p8_en = of_get_named_gpio(of_node,
"qcom,1p8-en-gpio", 0);
if (!e_config->display_1p8_en) {
pr_debug("%s qcom,display-1p8-en-gpio not found\n", __func__);
return -EINVAL;
}
e_config->led_5v_en = of_get_named_gpio(of_node,
"qcom,led-5v-en-gpio", 0);
if (!e_config->led_5v_en) {
pr_debug("%s qcom,led-5v-en-gpio not found\n", __func__);
return -EINVAL;
}
e_config->led_en1 = of_get_named_gpio(of_node,
"qcom,led-driver-en1-gpio", 0);
if (!e_config->led_en1) {
pr_debug("%s qcom,led-driver-en1-gpio not found\n", __func__);
return -EINVAL;
}
e_config->led_en2 = of_get_named_gpio(of_node,
"qcom,led-driver-en2-gpio", 0);
if (!e_config->led_en2) {
pr_debug("%s qcom,led-driver-en2-gpio not found\n", __func__);
return -EINVAL;
}
e_config->oenab = of_get_named_gpio(of_node,
"qcom,oenab-gpio", 0);
if (!e_config->oenab) {
pr_debug("%s qcom,oenab-gpio not found\n", __func__);
return -EINVAL;
}
e_config->selab = of_get_named_gpio(of_node,
"qcom,selab-gpio", 0);
if (!e_config->selab) {
pr_debug("%s qcom,selab-gpio not found\n", __func__);
return -EINVAL;
}
e_config->switch_power = of_get_named_gpio(of_node,
"qcom,switch-power-gpio", 0);
if (!e_config->switch_power) {
pr_debug("%s qcom,switch_power not found\n", __func__);
return -EINVAL;
}
return rc;
}
static int dsi_panel_parse_gpios(struct dsi_panel *panel,
struct device_node *of_node)
{
int rc = 0;
const char *data;
panel->reset_config.reset_gpio = of_get_named_gpio(of_node,
"qcom,platform-reset-gpio",
0);
if (!gpio_is_valid(panel->reset_config.reset_gpio)) {
pr_err("[%s] failed get reset gpio, rc=%d\n", panel->name, rc);
rc = -EINVAL;
goto error;
}
panel->reset_config.disp_en_gpio = of_get_named_gpio(of_node,
"qcom,5v-boost-gpio",
0);
if (!gpio_is_valid(panel->reset_config.disp_en_gpio)) {
pr_debug("[%s] 5v-boot-gpio is not set, rc=%d\n",
panel->name, rc);
panel->reset_config.disp_en_gpio = of_get_named_gpio(of_node,
"qcom,platform-en-gpio",
0);
if (!gpio_is_valid(panel->reset_config.disp_en_gpio)) {
pr_debug("[%s] platform-en-gpio is not set, rc=%d\n",
panel->name, rc);
}
}
panel->reset_config.lcd_mode_sel_gpio = of_get_named_gpio(of_node,
"qcom,panel-mode-gpio", 0);
if (!gpio_is_valid(panel->reset_config.lcd_mode_sel_gpio))
pr_debug("%s:%d mode gpio not specified\n", __func__, __LINE__);
data = of_get_property(of_node,
"qcom,mdss-dsi-mode-sel-gpio-state", NULL);
if (data) {
if (!strcmp(data, "single_port"))
panel->reset_config.mode_sel_state =
MODE_SEL_SINGLE_PORT;
else if (!strcmp(data, "dual_port"))
panel->reset_config.mode_sel_state =
MODE_SEL_DUAL_PORT;
else if (!strcmp(data, "high"))
panel->reset_config.mode_sel_state =
MODE_GPIO_HIGH;
else if (!strcmp(data, "low"))
panel->reset_config.mode_sel_state =
MODE_GPIO_LOW;
} else {
/* Set default mode as SPLIT mode */
panel->reset_config.mode_sel_state = MODE_SEL_DUAL_PORT;
}
/* Extended display panel gpios parsed */
rc = dsi_panel_exd_parse_gpios(panel, of_node);
if (rc && rc != -EINVAL)
pr_err("[%s] failed to parse gpios, rc=%d\n",
panel->name, rc);
/* TODO: release memory */
rc = dsi_panel_parse_reset_sequence(panel, of_node);
if (rc) {
pr_err("[%s] failed to parse reset sequence, rc=%d\n",
panel->name, rc);
goto error;
}
error:
return rc;
}
static int dsi_panel_parse_bl_pwm_config(struct dsi_backlight_config *config,
struct device_node *of_node)
{
int rc = 0;
u32 val;
rc = of_property_read_u32(of_node, "qcom,dsi-bl-pmic-bank-select",
&val);
if (rc) {
pr_err("bl-pmic-bank-select is not defined, rc=%d\n", rc);
goto error;
}
config->pwm_pmic_bank = val;
rc = of_property_read_u32(of_node, "qcom,dsi-bl-pmic-pwm-frequency",
&val);
if (rc) {
pr_err("bl-pmic-bank-select is not defined, rc=%d\n", rc);
goto error;
}
config->pwm_period_usecs = val;
config->pwm_pmi_control = of_property_read_bool(of_node,
"qcom,mdss-dsi-bl-pwm-pmi");
config->pwm_gpio = of_get_named_gpio(of_node,
"qcom,mdss-dsi-pwm-gpio",
0);
if (!gpio_is_valid(config->pwm_gpio)) {
pr_err("pwm gpio is invalid\n");
rc = -EINVAL;
goto error;
}
error:
return rc;
}
static int dsi_panel_parse_bl_config(struct dsi_panel *panel,
struct device_node *of_node)
{
int rc = 0;
const char *bl_type;
const char *data;
u32 val = 0;
bl_type = of_get_property(of_node,
"qcom,mdss-dsi-bl-pmic-control-type",
NULL);
if (!bl_type) {
panel->bl_config.type = DSI_BACKLIGHT_UNKNOWN;
} else if (!strcmp(bl_type, "bl_ctrl_pwm")) {
panel->bl_config.type = DSI_BACKLIGHT_PWM;
} else if (!strcmp(bl_type, "bl_ctrl_wled")) {
panel->bl_config.type = DSI_BACKLIGHT_WLED;
} else if (!strcmp(bl_type, "bl_ctrl_dcs")) {
panel->bl_config.type = DSI_BACKLIGHT_DCS;
} else {
pr_debug("[%s] bl-pmic-control-type unknown-%s\n",
panel->name, bl_type);
panel->bl_config.type = DSI_BACKLIGHT_UNKNOWN;
}
data = of_get_property(of_node, "qcom,bl-update-flag", NULL);
if (!data) {
panel->bl_config.bl_update = BL_UPDATE_NONE;
} else if (!strcmp(data, "delay_until_first_frame")) {
panel->bl_config.bl_update = BL_UPDATE_DELAY_UNTIL_FIRST_FRAME;
} else {
pr_debug("[%s] No valid bl-update-flag: %s\n",
panel->name, data);
panel->bl_config.bl_update = BL_UPDATE_NONE;
}
panel->bl_config.bl_scale = MAX_BL_SCALE_LEVEL;
panel->bl_config.bl_scale_ad = MAX_AD_BL_SCALE_LEVEL;
rc = of_property_read_u32(of_node, "qcom,mdss-dsi-bl-min-level", &val);
if (rc) {
pr_debug("[%s] bl-min-level unspecified, defaulting to zero\n",
panel->name);
panel->bl_config.bl_min_level = 0;
} else {
panel->bl_config.bl_min_level = val;
}
rc = of_property_read_u32(of_node, "qcom,mdss-dsi-bl-max-level", &val);
if (rc) {
pr_debug("[%s] bl-max-level unspecified, defaulting to max level\n",
panel->name);
panel->bl_config.bl_max_level = MAX_BL_LEVEL;
} else {
panel->bl_config.bl_max_level = val;
}
rc = of_property_read_u32(of_node, "qcom,mdss-brightness-max-level",
&val);
if (rc) {
pr_debug("[%s] brigheness-max-level unspecified, defaulting to 255\n",
panel->name);
panel->bl_config.brightness_max_level = 255;
} else {
panel->bl_config.brightness_max_level = val;
}
if (panel->bl_config.type == DSI_BACKLIGHT_PWM) {
rc = dsi_panel_parse_bl_pwm_config(&panel->bl_config, of_node);
if (rc) {
pr_err("[%s] failed to parse pwm config, rc=%d\n",
panel->name, rc);
goto error;
}
}
panel->bl_config.en_gpio = of_get_named_gpio(of_node,
"qcom,platform-bklight-en-gpio",
0);
if (!gpio_is_valid(panel->bl_config.en_gpio)) {
pr_debug("[%s] failed get bklt gpio, rc=%d\n", panel->name, rc);
rc = 0;
goto error;
}
error:
return rc;
}
void dsi_dsc_pclk_param_calc(struct msm_display_dsc_info *dsc, int intf_width)
{
int slice_per_pkt, slice_per_intf;
int bytes_in_slice, total_bytes_per_intf;
if (!dsc || !dsc->slice_width || !dsc->slice_per_pkt ||
(intf_width < dsc->slice_width)) {
pr_err("invalid input, intf_width=%d slice_width=%d\n",
intf_width, dsc ? dsc->slice_width : -1);
return;
}
slice_per_pkt = dsc->slice_per_pkt;
slice_per_intf = DIV_ROUND_UP(intf_width, dsc->slice_width);
/*
* If slice_per_pkt is greater than slice_per_intf then default to 1.
* This can happen during partial update.
*/
if (slice_per_pkt > slice_per_intf)
slice_per_pkt = 1;
bytes_in_slice = DIV_ROUND_UP(dsc->slice_width * dsc->bpp, 8);
total_bytes_per_intf = bytes_in_slice * slice_per_intf;
dsc->eol_byte_num = total_bytes_per_intf % 3;
dsc->pclk_per_line = DIV_ROUND_UP(total_bytes_per_intf, 3);
dsc->bytes_in_slice = bytes_in_slice;
dsc->bytes_per_pkt = bytes_in_slice * slice_per_pkt;
dsc->pkt_per_line = slice_per_intf / slice_per_pkt;
}
int dsi_dsc_populate_static_param(struct msm_display_dsc_info *dsc)
{
int bpp, bpc;
int mux_words_size;
int groups_per_line, groups_total;
int min_rate_buffer_size;
int hrd_delay;
int pre_num_extra_mux_bits, num_extra_mux_bits;
int slice_bits;
int target_bpp_x16;
int data;
int final_value, final_scale;
int ratio_index, mod_offset;
dsc->rc_model_size = 8192;
if (dsc->version == 0x11 && dsc->scr_rev == 0x1)
dsc->first_line_bpg_offset = 15;
else
dsc->first_line_bpg_offset = 12;
dsc->edge_factor = 6;
dsc->tgt_offset_hi = 3;
dsc->tgt_offset_lo = 3;
dsc->enable_422 = 0;
dsc->convert_rgb = 1;
dsc->vbr_enable = 0;
dsc->buf_thresh = dsi_dsc_rc_buf_thresh;
bpp = dsc->bpp;
bpc = dsc->bpc;
if (bpc == 12)
ratio_index = DSC_12BPC_8BPP;
else if (bpc == 10)
ratio_index = DSC_10BPC_8BPP;
else
ratio_index = DSC_8BPC_8BPP;
if (dsc->version == 0x11 && dsc->scr_rev == 0x1) {
dsc->range_min_qp =
dsi_dsc_rc_range_min_qp_1_1_scr1[ratio_index];
dsc->range_max_qp =
dsi_dsc_rc_range_max_qp_1_1_scr1[ratio_index];
} else {
dsc->range_min_qp = dsi_dsc_rc_range_min_qp_1_1[ratio_index];
dsc->range_max_qp = dsi_dsc_rc_range_max_qp_1_1[ratio_index];
}
dsc->range_bpg_offset = dsi_dsc_rc_range_bpg_offset;
if (bpp == 8)
dsc->initial_offset = 6144;
else
dsc->initial_offset = 2048; /* bpp = 12 */
if (bpc == 12)
mux_words_size = 64;
else
mux_words_size = 48; /* bpc == 8/10 */
if (bpc == 8) {
dsc->line_buf_depth = 9;
dsc->input_10_bits = 0;
dsc->min_qp_flatness = 3;
dsc->max_qp_flatness = 12;
dsc->quant_incr_limit0 = 11;
dsc->quant_incr_limit1 = 11;
} else if (bpc == 10) { /* 10bpc */
dsc->line_buf_depth = 11;
dsc->input_10_bits = 1;
dsc->min_qp_flatness = 7;
dsc->max_qp_flatness = 16;
dsc->quant_incr_limit0 = 15;
dsc->quant_incr_limit1 = 15;
} else { /* 12 bpc */
dsc->line_buf_depth = 9;
dsc->input_10_bits = 0;
dsc->min_qp_flatness = 11;
dsc->max_qp_flatness = 20;
dsc->quant_incr_limit0 = 19;
dsc->quant_incr_limit1 = 19;
}
mod_offset = dsc->slice_width % 3;
switch (mod_offset) {
case 0:
dsc->slice_last_group_size = 2;
break;
case 1:
dsc->slice_last_group_size = 0;
break;
case 2:
dsc->slice_last_group_size = 1;
break;
default:
break;
}
dsc->det_thresh_flatness = 7 + 2*(bpc - 8);
dsc->initial_xmit_delay = dsc->rc_model_size / (2 * bpp);
groups_per_line = DIV_ROUND_UP(dsc->slice_width, 3);
dsc->chunk_size = dsc->slice_width * bpp / 8;
if ((dsc->slice_width * bpp) % 8)
dsc->chunk_size++;
/* rbs-min */
min_rate_buffer_size = dsc->rc_model_size - dsc->initial_offset +
dsc->initial_xmit_delay * bpp +
groups_per_line * dsc->first_line_bpg_offset;
hrd_delay = DIV_ROUND_UP(min_rate_buffer_size, bpp);
dsc->initial_dec_delay = hrd_delay - dsc->initial_xmit_delay;
dsc->initial_scale_value = 8 * dsc->rc_model_size /
(dsc->rc_model_size - dsc->initial_offset);
slice_bits = 8 * dsc->chunk_size * dsc->slice_height;
groups_total = groups_per_line * dsc->slice_height;
data = dsc->first_line_bpg_offset * 2048;
dsc->nfl_bpg_offset = DIV_ROUND_UP(data, (dsc->slice_height - 1));
pre_num_extra_mux_bits = 3 * (mux_words_size + (4 * bpc + 4) - 2);
num_extra_mux_bits = pre_num_extra_mux_bits - (mux_words_size -
((slice_bits - pre_num_extra_mux_bits) % mux_words_size));
data = 2048 * (dsc->rc_model_size - dsc->initial_offset
+ num_extra_mux_bits);
dsc->slice_bpg_offset = DIV_ROUND_UP(data, groups_total);
/* bpp * 16 + 0.5 */
data = bpp * 16;
data *= 2;
data++;
data /= 2;
target_bpp_x16 = data;
data = (dsc->initial_xmit_delay * target_bpp_x16) / 16;
final_value = dsc->rc_model_size - data + num_extra_mux_bits;
final_scale = 8 * dsc->rc_model_size /
(dsc->rc_model_size - final_value);
dsc->final_offset = final_value;
data = (final_scale - 9) * (dsc->nfl_bpg_offset +
dsc->slice_bpg_offset);
dsc->scale_increment_interval = (2048 * dsc->final_offset) / data;
dsc->scale_decrement_interval = groups_per_line /
(dsc->initial_scale_value - 8);
return 0;
}
static int dsi_panel_parse_phy_timing(struct dsi_display_mode *mode,
struct device_node *of_node)
{
const char *data;
u32 len, i;
int rc = 0;
struct dsi_display_mode_priv_info *priv_info;
priv_info = mode->priv_info;
data = of_get_property(of_node,
"qcom,mdss-dsi-panel-phy-timings", &len);
if (!data) {
pr_debug("Unable to read Phy timing settings");
} else {
priv_info->phy_timing_val =
kzalloc((sizeof(u32) * len), GFP_KERNEL);
if (!priv_info->phy_timing_val)
return -EINVAL;
for (i = 0; i < len; i++)
priv_info->phy_timing_val[i] = data[i];
priv_info->phy_timing_len = len;
};
mode->pixel_clk_khz = (mode->timing.h_active *
DSI_V_TOTAL(&mode->timing) *
mode->timing.refresh_rate) / 1000;
return rc;
}
static int dsi_panel_parse_dsc_params(struct dsi_display_mode *mode,
struct device_node *of_node)
{
u32 data;
int rc = -EINVAL;
int intf_width;
const char *compression;
struct dsi_display_mode_priv_info *priv_info;
if (!mode || !mode->priv_info)
return -EINVAL;
priv_info = mode->priv_info;
priv_info->dsc_enabled = false;
compression = of_get_property(of_node, "qcom,compression-mode", NULL);
if (compression && !strcmp(compression, "dsc"))
priv_info->dsc_enabled = true;
if (!priv_info->dsc_enabled) {
pr_debug("dsc compression is not enabled for the mode");
return 0;
}
rc = of_property_read_u32(of_node, "qcom,mdss-dsc-version", &data);
if (rc) {
priv_info->dsc.version = 0x11;
rc = 0;
} else {
priv_info->dsc.version = data & 0xff;
/* only support DSC 1.1 rev */
if (priv_info->dsc.version != 0x11) {
pr_err("%s: DSC version:%d not supported\n", __func__,
priv_info->dsc.version);
rc = -EINVAL;
goto error;
}
}
rc = of_property_read_u32(of_node, "qcom,mdss-dsc-scr-version", &data);
if (rc) {
priv_info->dsc.scr_rev = 0x0;
rc = 0;
} else {
priv_info->dsc.scr_rev = data & 0xff;
/* only one scr rev supported */
if (priv_info->dsc.scr_rev > 0x1) {
pr_err("%s: DSC scr version:%d not supported\n",
__func__, priv_info->dsc.scr_rev);
rc = -EINVAL;
goto error;
}
}
rc = of_property_read_u32(of_node, "qcom,mdss-dsc-slice-height", &data);
if (rc) {
pr_err("failed to parse qcom,mdss-dsc-slice-height\n");
goto error;
}
priv_info->dsc.slice_height = data;
rc = of_property_read_u32(of_node, "qcom,mdss-dsc-slice-width", &data);
if (rc) {
pr_err("failed to parse qcom,mdss-dsc-slice-width\n");
goto error;
}
priv_info->dsc.slice_width = data;
intf_width = mode->timing.h_active;
if (intf_width % priv_info->dsc.slice_width) {
pr_err("invalid slice width for the intf width:%d slice width:%d\n",
intf_width, priv_info->dsc.slice_width);
rc = -EINVAL;
goto error;
}
priv_info->dsc.pic_width = mode->timing.h_active;
priv_info->dsc.pic_height = mode->timing.v_active;
rc = of_property_read_u32(of_node, "qcom,mdss-dsc-slice-per-pkt",
&data);
if (rc) {
pr_err("failed to parse qcom,mdss-dsc-slice-per-pkt\n");
goto error;
}
priv_info->dsc.slice_per_pkt = data;
rc = of_property_read_u32(of_node, "qcom,mdss-dsc-bit-per-component",
&data);
if (rc) {
pr_err("failed to parse qcom,mdss-dsc-bit-per-component\n");
goto error;
}
priv_info->dsc.bpc = data;
rc = of_property_read_u32(of_node, "qcom,mdss-dsc-bit-per-pixel",
&data);
if (rc) {
pr_err("failed to parse qcom,mdss-dsc-bit-per-pixel\n");
goto error;
}
priv_info->dsc.bpp = data;
priv_info->dsc.block_pred_enable = of_property_read_bool(of_node,
"qcom,mdss-dsc-block-prediction-enable");
priv_info->dsc.full_frame_slices = DIV_ROUND_UP(intf_width,
priv_info->dsc.slice_width);
dsi_dsc_populate_static_param(&priv_info->dsc);
dsi_dsc_pclk_param_calc(&priv_info->dsc, intf_width);
error:
return rc;
}
static int dsi_panel_parse_hdr_config(struct dsi_panel *panel,
struct device_node *of_node)
{
int rc = 0;
struct drm_panel_hdr_properties *hdr_prop;
hdr_prop = &panel->hdr_props;
hdr_prop->hdr_enabled = of_property_read_bool(of_node,
"qcom,mdss-dsi-panel-hdr-enabled");
if (hdr_prop->hdr_enabled) {
rc = of_property_read_u32_array(of_node,
"qcom,mdss-dsi-panel-hdr-color-primaries",
hdr_prop->display_primaries,
DISPLAY_PRIMARIES_MAX);
if (rc) {
pr_err("%s:%d, Unable to read color primaries,rc:%u",
__func__, __LINE__, rc);
hdr_prop->hdr_enabled = false;
return rc;
}
rc = of_property_read_u32(of_node,
"qcom,mdss-dsi-panel-peak-brightness",
&(hdr_prop->peak_brightness));
if (rc) {
pr_err("%s:%d, Unable to read hdr brightness, rc:%u",
__func__, __LINE__, rc);
hdr_prop->hdr_enabled = false;
return rc;
}
rc = of_property_read_u32(of_node,
"qcom,mdss-dsi-panel-blackness-level",
&(hdr_prop->blackness_level));
if (rc) {
pr_err("%s:%d, Unable to read hdr brightness, rc:%u",
__func__, __LINE__, rc);
hdr_prop->hdr_enabled = false;
return rc;
}
}
return 0;
}
static int dsi_panel_parse_topology(
struct dsi_display_mode_priv_info *priv_info,
struct device_node *of_node, int topology_override)
{
struct msm_display_topology *topology;
u32 top_count, top_sel, *array = NULL;
int i, len = 0;
int rc = -EINVAL;
len = of_property_count_u32_elems(of_node, "qcom,display-topology");
if (len <= 0 || len % TOPOLOGY_SET_LEN ||
len > (TOPOLOGY_SET_LEN * MAX_TOPOLOGY)) {
pr_err("invalid topology list for the panel, rc = %d\n", rc);
return rc;
}
top_count = len / TOPOLOGY_SET_LEN;
array = kcalloc(len, sizeof(u32), GFP_KERNEL);
if (!array)
return -ENOMEM;
rc = of_property_read_u32_array(of_node,
"qcom,display-topology", array, len);
if (rc) {
pr_err("unable to read the display topologies, rc = %d\n", rc);
goto read_fail;
}
topology = kcalloc(top_count, sizeof(*topology), GFP_KERNEL);
if (!topology) {
rc = -ENOMEM;
goto read_fail;
}
for (i = 0; i < top_count; i++) {
struct msm_display_topology *top = &topology[i];
top->num_lm = array[i * TOPOLOGY_SET_LEN];
top->num_enc = array[i * TOPOLOGY_SET_LEN + 1];
top->num_intf = array[i * TOPOLOGY_SET_LEN + 2];
};
if (topology_override >= 0 && topology_override < top_count) {
pr_info("override topology: cfg:%d lm:%d comp_enc:%d intf:%d\n",
topology_override,
topology[topology_override].num_lm,
topology[topology_override].num_enc,
topology[topology_override].num_intf);
top_sel = topology_override;
goto parse_done;
}
rc = of_property_read_u32(of_node,
"qcom,default-topology-index", &top_sel);
if (rc) {
pr_err("no default topology selected, rc = %d\n", rc);
goto parse_fail;
}
if (top_sel >= top_count) {
rc = -EINVAL;
pr_err("default topology is specified is not valid, rc = %d\n",
rc);
goto parse_fail;
}
pr_info("default topology: lm: %d comp_enc:%d intf: %d\n",
topology[top_sel].num_lm,
topology[top_sel].num_enc,
topology[top_sel].num_intf);
parse_done:
memcpy(&priv_info->topology, &topology[top_sel],
sizeof(struct msm_display_topology));
parse_fail:
kfree(topology);
read_fail:
kfree(array);
return rc;
}
static int dsi_panel_parse_roi_alignment(struct device_node *of_node,
struct msm_roi_alignment *align)
{
int len = 0, rc = 0;
u32 value[6];
struct property *data;
if (!align || !of_node)
return -EINVAL;
memset(align, 0, sizeof(*align));
data = of_find_property(of_node, "qcom,panel-roi-alignment", &len);
len /= sizeof(u32);
if (!data) {
pr_err("panel roi alignment not found\n");
rc = -EINVAL;
} else if (len != 6) {
pr_err("incorrect roi alignment len %d\n", len);
rc = -EINVAL;
} else {
rc = of_property_read_u32_array(of_node,
"qcom,panel-roi-alignment", value, len);
if (rc)
pr_debug("error reading panel roi alignment values\n");
else {
align->xstart_pix_align = value[0];
align->ystart_pix_align = value[1];
align->width_pix_align = value[2];
align->height_pix_align = value[3];
align->min_width = value[4];
align->min_height = value[5];
}
pr_info("roi alignment: [%d, %d, %d, %d, %d, %d]\n",
align->xstart_pix_align,
align->width_pix_align,
align->ystart_pix_align,
align->height_pix_align,
align->min_width,
align->min_height);
}
return rc;
}
static int dsi_panel_parse_partial_update_caps(struct dsi_display_mode *mode,
struct device_node *of_node)
{
struct msm_roi_caps *roi_caps = NULL;
const char *data;
int rc = 0;
if (!mode || !mode->priv_info) {
pr_err("invalid arguments\n");
return -EINVAL;
}
roi_caps = &mode->priv_info->roi_caps;
memset(roi_caps, 0, sizeof(*roi_caps));
data = of_get_property(of_node, "qcom,partial-update-enabled", NULL);
if (data) {
if (!strcmp(data, "dual_roi"))
roi_caps->num_roi = 2;
else if (!strcmp(data, "single_roi"))
roi_caps->num_roi = 1;
else {
pr_info(
"invalid value for qcom,partial-update-enabled: %s\n",
data);
return 0;
}
} else {
pr_info("partial update disabled as the property is not set\n");
return 0;
}
roi_caps->merge_rois = of_property_read_bool(of_node,
"qcom,partial-update-roi-merge");
roi_caps->enabled = roi_caps->num_roi > 0;
pr_info("partial update num_rois=%d enabled=%d\n", roi_caps->num_roi,
roi_caps->enabled);
if (roi_caps->enabled)
rc = dsi_panel_parse_roi_alignment(of_node,
&roi_caps->align);
if (rc)
memset(roi_caps, 0, sizeof(*roi_caps));
return rc;
}
static int dsi_panel_parse_dms_info(struct dsi_panel *panel,
struct device_node *of_node)
{
int dms_enabled;
const char *data;
if (!of_node || !panel) {
pr_err("invalid params\n");
return -EINVAL;
}
panel->dms_mode = DSI_DMS_MODE_DISABLED;
dms_enabled = of_property_read_bool(of_node,
"qcom,dynamic-mode-switch-enabled");
if (!dms_enabled)
return 0;
data = of_get_property(of_node, "qcom,dynamic-mode-switch-type", NULL);
if (data && !strcmp(data, "dynamic-resolution-switch-immediate")) {
panel->dms_mode = DSI_DMS_MODE_RES_SWITCH_IMMEDIATE;
} else {
pr_err("[%s] unsupported dynamic switch mode: %s\n",
panel->name, data);
return -EINVAL;
}
return 0;
};
/*
* The length of all the valid values to be checked should not be greater
* than the length of returned data from read command.
*/
static bool
dsi_panel_parse_esd_check_valid_params(struct dsi_panel *panel, u32 count)
{
int i;
struct drm_panel_esd_config *config = &panel->esd_config;
for (i = 0; i < count; ++i) {
if (config->status_valid_params[i] >
config->status_cmds_rlen[i]) {
pr_debug("ignore valid params\n");
return false;
}
}
return true;
}
static bool dsi_panel_parse_esd_status_len(struct device_node *np,
char *prop_key, u32 **target, u32 cmd_cnt)
{
int tmp;
if (!of_find_property(np, prop_key, &tmp))
return false;
tmp /= sizeof(u32);
if (tmp != cmd_cnt) {
pr_err("request property(%d) do not match cmd count(%d)\n",
tmp, cmd_cnt);
return false;
}
*target = kcalloc(tmp, sizeof(u32), GFP_KERNEL);
if (IS_ERR_OR_NULL(*target)) {
pr_err("Error allocating memory for property\n");
return false;
}
if (of_property_read_u32_array(np, prop_key, *target, tmp)) {
pr_err("cannot get values from dts\n");
kfree(*target);
*target = NULL;
return false;
}
return true;
}
static void dsi_panel_esd_config_deinit(struct drm_panel_esd_config *esd_config)
{
kfree(esd_config->status_buf);
kfree(esd_config->return_buf);
kfree(esd_config->status_value);
kfree(esd_config->status_valid_params);
kfree(esd_config->status_cmds_rlen);
kfree(esd_config->status_cmd.cmds);
}
int dsi_panel_parse_esd_reg_read_configs(struct dsi_panel *panel,
struct device_node *of_node)
{
struct drm_panel_esd_config *esd_config;
int rc = 0;
u32 tmp;
u32 i, status_len, *lenp;
struct property *data;
if (!panel || !of_node) {
pr_err("Invalid Params\n");
return -EINVAL;
}
esd_config = &panel->esd_config;
if (!esd_config)
return -EINVAL;
dsi_panel_parse_cmd_sets_sub(&esd_config->status_cmd,
DSI_CMD_SET_PANEL_STATUS, of_node);
if (!esd_config->status_cmd.count) {
pr_err("panel status command parsing failed\n");
rc = -EINVAL;
goto error;
}
if (!dsi_panel_parse_esd_status_len(of_node,
"qcom,mdss-dsi-panel-status-read-length",
&panel->esd_config.status_cmds_rlen,
esd_config->status_cmd.count)) {
pr_err("Invalid status read length\n");
rc = -EINVAL;
goto error1;
}
if (dsi_panel_parse_esd_status_len(of_node,
"qcom,mdss-dsi-panel-status-valid-params",
&panel->esd_config.status_valid_params,
esd_config->status_cmd.count)) {
if (!dsi_panel_parse_esd_check_valid_params(panel,
esd_config->status_cmd.count)) {
rc = -EINVAL;
goto error2;
}
}
status_len = 0;
lenp = esd_config->status_valid_params ?: esd_config->status_cmds_rlen;
for (i = 0; i < esd_config->status_cmd.count; ++i)
status_len += lenp[i];
if (!status_len) {
rc = -EINVAL;
goto error2;
}
/*
* Some panel may need multiple read commands to properly
* check panel status. Do a sanity check for proper status
* value which will be compared with the value read by dsi
* controller during ESD check. Also check if multiple read
* commands are there then, there should be corresponding
* status check values for each read command.
*/
data = of_find_property(of_node,
"qcom,mdss-dsi-panel-status-value", &tmp);
tmp /= sizeof(u32);
if (!IS_ERR_OR_NULL(data) && tmp != 0 && (tmp % status_len) == 0) {
esd_config->groups = tmp / status_len;
} else {
pr_err("error parse panel-status-value\n");
rc = -EINVAL;
goto error2;
}
esd_config->status_value =
kzalloc(sizeof(u32) * status_len * esd_config->groups,
GFP_KERNEL);
if (!esd_config->status_value) {
rc = -ENOMEM;
goto error2;
}
esd_config->return_buf = kcalloc(status_len * esd_config->groups,
sizeof(unsigned char), GFP_KERNEL);
if (!esd_config->return_buf) {
rc = -ENOMEM;
goto error3;
}
esd_config->status_buf = kzalloc(SZ_4K, GFP_KERNEL);
if (!esd_config->status_buf) {
rc = -ENOMEM;
goto error4;
}
rc = of_property_read_u32_array(of_node,
"qcom,mdss-dsi-panel-status-value",
esd_config->status_value, esd_config->groups * status_len);
if (rc) {
pr_debug("error reading panel status values\n");
memset(esd_config->status_value, 0,
esd_config->groups * status_len);
}
esd_config->cmd_channel = of_property_read_bool(of_node,
"qcom,mdss-dsi-panel-cmds-only-by-right");
return 0;
error4:
kfree(esd_config->return_buf);
error3:
kfree(esd_config->status_value);
error2:
kfree(esd_config->status_valid_params);
kfree(esd_config->status_cmds_rlen);
error1:
kfree(esd_config->status_cmd.cmds);
error:
return rc;
}
static int dsi_panel_parse_esd_config(struct dsi_panel *panel,
struct device_node *of_node)
{
int rc = 0;
const char *string;
struct drm_panel_esd_config *esd_config;
u8 *esd_mode = NULL;
esd_config = &panel->esd_config;
esd_config->status_mode = ESD_MODE_MAX;
esd_config->esd_enabled = of_property_read_bool(of_node,
"qcom,esd-check-enabled");
if (!esd_config->esd_enabled)
return 0;
rc = of_property_read_string(of_node,
"qcom,mdss-dsi-panel-status-check-mode", &string);
if (!rc) {
if (!strcmp(string, "bta_check")) {
esd_config->status_mode = ESD_MODE_SW_BTA;
} else if (!strcmp(string, "reg_read")) {
esd_config->status_mode = ESD_MODE_REG_READ;
} else if (!strcmp(string, "te_signal_check")) {
if (panel->panel_mode == DSI_OP_CMD_MODE) {
esd_config->status_mode = ESD_MODE_PANEL_TE;
} else {
pr_err("TE-ESD not valid for video mode\n");
rc = -EINVAL;
goto error;
}
} else {
pr_err("No valid panel-status-check-mode string\n");
rc = -EINVAL;
goto error;
}
} else {
pr_debug("status check method not defined!\n");
rc = -EINVAL;
goto error;
}
if (panel->esd_config.status_mode == ESD_MODE_REG_READ) {
rc = dsi_panel_parse_esd_reg_read_configs(panel, of_node);
if (rc) {
pr_err("failed to parse esd reg read mode params, rc=%d\n",
rc);
goto error;
}
esd_mode = "register_read";
} else if (panel->esd_config.status_mode == ESD_MODE_SW_BTA) {
esd_mode = "bta_trigger";
} else if (panel->esd_config.status_mode == ESD_MODE_PANEL_TE) {
esd_mode = "te_check";
}
pr_info("ESD enabled with mode: %s\n", esd_mode);
return 0;
error:
panel->esd_config.esd_enabled = false;
return rc;
}
struct dsi_panel *dsi_panel_get(struct device *parent,
struct device_node *of_node,
int topology_override,
enum dsi_panel_type type)
{
struct dsi_panel *panel;
int rc = 0;
panel = kzalloc(sizeof(*panel), GFP_KERNEL);
if (!panel)
return ERR_PTR(-ENOMEM);
if (type == DSI_PANEL) {
panel->name = of_get_property(of_node,
"qcom,mdss-dsi-panel-name", NULL);
if (!panel->name)
panel->name = DSI_PANEL_DEFAULT_LABEL;
rc = dsi_panel_parse_host_config(panel, of_node);
if (rc) {
pr_err("failed to parse host configuration, rc=%d\n",
rc);
goto error;
}
rc = dsi_panel_parse_panel_mode(panel, of_node);
if (rc) {
pr_err("failed to parse panel mode configuration, rc=%d\n",
rc);
goto error;
}
rc = dsi_panel_parse_dfps_caps(&panel->dfps_caps,
of_node, panel->name);
if (rc)
pr_err("failed to parse dfps configuration, rc=%d\n",
rc);
if (panel->panel_mode == DSI_OP_VIDEO_MODE) {
rc = dsi_panel_parse_dyn_clk_caps(&panel->dyn_clk_caps,
of_node, panel->name);
if (rc)
pr_err("failed to parse dynamic clk config, rc=%d\n",
rc);
}
rc = dsi_panel_parse_phy_props(&panel->phy_props,
of_node, panel->name);
if (rc) {
pr_err("failed to parse panel physical dimension, rc=%d\n",
rc);
goto error;
}
rc = dsi_panel_parse_power_cfg(parent, panel, of_node);
if (rc)
pr_err("failed to parse power config, rc=%d\n", rc);
rc = dsi_panel_parse_gpios(panel, of_node);
if (rc)
pr_err("failed to parse panel gpios, rc=%d\n", rc);
rc = dsi_panel_parse_bl_config(panel, of_node);
if (rc)
pr_err("failed to parse backlight config, rc=%d\n", rc);
rc = dsi_panel_parse_misc_features(panel, of_node);
if (rc)
pr_err("failed to parse misc features, rc=%d\n", rc);
rc = dsi_panel_parse_hdr_config(panel, of_node);
if (rc)
pr_err("failed to parse hdr config, rc=%d\n", rc);
rc = dsi_panel_get_mode_count(panel, of_node);
if (rc) {
pr_err("failed to get mode count, rc=%d\n", rc);
goto error;
}
rc = dsi_panel_parse_dms_info(panel, of_node);
if (rc)
pr_debug("failed to get dms info, rc=%d\n", rc);
rc = dsi_panel_parse_esd_config(panel, of_node);
if (rc)
pr_debug("failed to parse esd config, rc=%d\n", rc);
panel->type = DSI_PANEL;
} else if (type == EXT_BRIDGE) {
panel->name = EXT_BRIDGE_DEFAULT_LABEL;
panel->type = EXT_BRIDGE;
} else {
pr_err("invalid panel type\n");
rc = -ENOTSUPP;
goto error;
}
panel->panel_of_node = of_node;
drm_panel_init(&panel->drm_panel);
mutex_init(&panel->panel_lock);
panel->parent = parent;
return panel;
error:
kfree(panel);
return ERR_PTR(rc);
}
void dsi_panel_put(struct dsi_panel *panel)
{
/* free resources allocated for ESD check */
if (panel->type == DSI_PANEL)
dsi_panel_esd_config_deinit(&panel->esd_config);
kfree(panel);
}
int dsi_panel_drv_init(struct dsi_panel *panel,
struct mipi_dsi_host *host)
{
int rc = 0;
struct mipi_dsi_device *dev;
if (!panel || !host) {
pr_err("invalid params\n");
return -EINVAL;
}
if (panel->type == EXT_BRIDGE)
return 0;
mutex_lock(&panel->panel_lock);
dev = &panel->mipi_device;
dev->host = host;
/*
* We dont have device structure since panel is not a device node.
* When using drm panel framework, the device is probed when the host is
* create.
*/
dev->channel = 0;
dev->lanes = 4;
panel->host = host;
rc = dsi_panel_vreg_get(panel);
if (rc) {
pr_err("[%s] failed to get panel regulators, rc=%d\n",
panel->name, rc);
goto exit;
}
rc = dsi_panel_pinctrl_init(panel);
if (rc) {
pr_err("[%s] failed to init pinctrl, rc=%d\n", panel->name, rc);
goto error_vreg_put;
}
rc = dsi_panel_gpio_request(panel);
if (rc) {
pr_err("[%s] failed to request gpios, rc=%d\n", panel->name,
rc);
goto error_pinctrl_deinit;
}
rc = dsi_panel_bl_register(panel);
if (rc) {
if (rc != -EPROBE_DEFER)
pr_err("[%s] failed to register backlight, rc=%d\n",
panel->name, rc);
goto error_gpio_release;
}
rc = dsi_panel_exd_gpio_request(panel);
if (rc) {
pr_err("[%s] failed to request gpios, rc=%d\n", panel->name,
rc);
goto error_exd_gpio_release;
}
goto exit;
error_exd_gpio_release:
(void)dsi_panel_exd_gpio_release(panel);
error_gpio_release:
(void)dsi_panel_gpio_release(panel);
error_pinctrl_deinit:
(void)dsi_panel_pinctrl_deinit(panel);
error_vreg_put:
(void)dsi_panel_vreg_put(panel);
exit:
mutex_unlock(&panel->panel_lock);
return rc;
}
int dsi_panel_drv_deinit(struct dsi_panel *panel)
{
int rc = 0;
if (!panel) {
pr_err("invalid params\n");
return -EINVAL;
}
if (panel->type == EXT_BRIDGE)
return 0;
mutex_lock(&panel->panel_lock);
rc = dsi_panel_bl_unregister(panel);
if (rc)
pr_err("[%s] failed to unregister backlight, rc=%d\n",
panel->name, rc);
rc = dsi_panel_gpio_release(panel);
if (rc)
pr_err("[%s] failed to release gpios, rc=%d\n", panel->name,
rc);
rc = dsi_panel_exd_gpio_release(panel);
if (rc)
pr_err("[%s] failed to release gpios, rc=%d\n", panel->name,
rc);
rc = dsi_panel_pinctrl_deinit(panel);
if (rc)
pr_err("[%s] failed to deinit gpios, rc=%d\n", panel->name,
rc);
rc = dsi_panel_vreg_put(panel);
if (rc)
pr_err("[%s] failed to put regs, rc=%d\n", panel->name, rc);
panel->host = NULL;
memset(&panel->mipi_device, 0x0, sizeof(panel->mipi_device));
mutex_unlock(&panel->panel_lock);
return rc;
}
int dsi_panel_validate_mode(struct dsi_panel *panel,
struct dsi_display_mode *mode)
{
return 0;
}
int dsi_panel_get_mode_count(struct dsi_panel *panel,
struct device_node *of_node)
{
const u32 SINGLE_MODE_SUPPORT = 1;
struct device_node *timings_np;
int count, rc = 0;
if (!of_node || !panel) {
pr_err("invalid params\n");
return -EINVAL;
}
panel->num_timing_nodes = 0;
timings_np = of_get_child_by_name(of_node,
"qcom,mdss-dsi-display-timings");
if (!timings_np) {
pr_err("no display timing nodes defined\n");
rc = -EINVAL;
goto error;
}
count = of_get_child_count(timings_np);
if (!count || count > DSI_MODE_MAX) {
pr_err("invalid count of timing nodes: %d\n", count);
rc = -EINVAL;
goto error;
}
/* No multiresolution support is available for video mode panels */
if (panel->panel_mode != DSI_OP_CMD_MODE)
count = SINGLE_MODE_SUPPORT;
panel->num_timing_nodes = count;
error:
return rc;
}
int dsi_panel_get_phy_props(struct dsi_panel *panel,
struct dsi_panel_phy_props *phy_props)
{
int rc = 0;
if (!panel || !phy_props) {
pr_err("invalid params\n");
return -EINVAL;
}
memcpy(phy_props, &panel->phy_props, sizeof(*phy_props));
return rc;
}
int dsi_panel_get_dfps_caps(struct dsi_panel *panel,
struct dsi_dfps_capabilities *dfps_caps)
{
int rc = 0;
if (!panel || !dfps_caps) {
pr_err("invalid params\n");
return -EINVAL;
}
memcpy(dfps_caps, &panel->dfps_caps, sizeof(*dfps_caps));
return rc;
}
void dsi_panel_put_mode(struct dsi_display_mode *mode)
{
int i;
if (!mode->priv_info)
return;
kfree(mode->priv_info->phy_timing_val);
for (i = 0; i < DSI_CMD_SET_MAX; i++)
dsi_panel_destroy_cmd_packets(&mode->priv_info->cmd_sets[i]);
kfree(mode->priv_info);
mode->priv_info = NULL;
}
int dsi_panel_get_mode(struct dsi_panel *panel,
u32 index, struct dsi_display_mode *mode,
int topology_override)
{
struct device_node *timings_np, *child_np;
struct dsi_display_mode_priv_info *prv_info;
u32 child_idx = 0;
int rc = 0, num_timings;
if (!panel || !mode) {
pr_err("invalid params\n");
return -EINVAL;
}
if (panel->type == EXT_BRIDGE)
return 0;
mutex_lock(&panel->panel_lock);
mode->priv_info = kzalloc(sizeof(*mode->priv_info), GFP_KERNEL);
if (!mode->priv_info) {
rc = -ENOMEM;
goto done;
}
prv_info = mode->priv_info;
timings_np = of_get_child_by_name(panel->panel_of_node,
"qcom,mdss-dsi-display-timings");
if (!timings_np) {
pr_err("no display timing nodes defined\n");
rc = -EINVAL;
goto parse_fail;
}
num_timings = of_get_child_count(timings_np);
if (!num_timings || num_timings > DSI_MODE_MAX) {
pr_err("invalid count of timing nodes: %d\n", num_timings);
rc = -EINVAL;
goto parse_fail;
}
for_each_child_of_node(timings_np, child_np) {
if (index != child_idx++)
continue;
rc = dsi_panel_parse_timing(panel->parent, &mode->timing,
panel->name, child_np);
if (rc) {
pr_err("failed to parse panel timing, rc=%d\n", rc);
goto parse_fail;
}
rc = dsi_panel_parse_dsc_params(mode, child_np);
if (rc) {
pr_err("failed to parse dsc params, rc=%d\n", rc);
goto parse_fail;
}
rc = dsi_panel_parse_topology(prv_info, child_np,
topology_override);
if (rc) {
pr_err("failed to parse panel topology, rc=%d\n", rc);
goto parse_fail;
}
rc = dsi_panel_parse_cmd_sets(prv_info, child_np);
if (rc) {
pr_err("failed to parse command sets, rc=%d\n", rc);
goto parse_fail;
}
rc = dsi_panel_parse_jitter_config(mode, child_np);
if (rc)
pr_err(
"failed to parse panel jitter config, rc=%d\n", rc);
rc = dsi_panel_parse_phy_timing(mode, child_np);
if (rc) {
pr_err(
"failed to parse panel phy timings, rc=%d\n", rc);
goto parse_fail;
}
rc = dsi_panel_parse_partial_update_caps(mode, child_np);
if (rc)
pr_err("failed to partial update caps, rc=%d\n", rc);
}
goto done;
parse_fail:
kfree(mode->priv_info);
mode->priv_info = NULL;
done:
mutex_unlock(&panel->panel_lock);
return rc;
}
int dsi_panel_get_host_cfg_for_mode(struct dsi_panel *panel,
struct dsi_display_mode *mode,
struct dsi_host_config *config)
{
int rc = 0;
if (!panel || !mode || !config) {
pr_err("invalid params\n");
return -EINVAL;
}
mutex_lock(&panel->panel_lock);
config->panel_mode = panel->panel_mode;
memcpy(&config->common_config, &panel->host_config,
sizeof(config->common_config));
if (panel->panel_mode == DSI_OP_VIDEO_MODE) {
memcpy(&config->u.video_engine, &panel->video_config,
sizeof(config->u.video_engine));
} else {
memcpy(&config->u.cmd_engine, &panel->cmd_config,
sizeof(config->u.cmd_engine));
}
memcpy(&config->video_timing, &mode->timing,
sizeof(config->video_timing));
if (mode->priv_info) {
config->video_timing.dsc_enabled = mode->priv_info->dsc_enabled;
config->video_timing.dsc = &mode->priv_info->dsc;
config->bit_clk_rate_hz = mode->timing.clk_rate_hz;
}
config->esc_clk_rate_hz = 19200000;
mutex_unlock(&panel->panel_lock);
return rc;
}
int dsi_panel_pre_prepare(struct dsi_panel *panel)
{
int rc = 0;
if (!panel) {
pr_err("invalid params\n");
return -EINVAL;
}
if (panel->type == EXT_BRIDGE)
return 0;
mutex_lock(&panel->panel_lock);
/* If LP11_INIT is set, panel will be powered up during prepare() */
if (panel->lp11_init)
goto error;
rc = dsi_panel_power_on(panel);
if (rc) {
pr_err("[%s] panel power on failed, rc=%d\n", panel->name, rc);
goto error;
}
error:
mutex_unlock(&panel->panel_lock);
return rc;
}
int dsi_panel_update_pps(struct dsi_panel *panel)
{
int rc = 0;
struct dsi_panel_cmd_set *set = NULL;
struct dsi_display_mode_priv_info *priv_info = NULL;
if (!panel || !panel->cur_mode) {
pr_err("invalid params\n");
return -EINVAL;
}
if (panel->type == EXT_BRIDGE)
return 0;
mutex_lock(&panel->panel_lock);
priv_info = panel->cur_mode->priv_info;
set = &priv_info->cmd_sets[DSI_CMD_SET_PPS];
dsi_dsc_create_pps_buf_cmd(&priv_info->dsc, panel->dsc_pps_cmd, 0);
rc = dsi_panel_create_cmd_packets(panel->dsc_pps_cmd,
DSI_CMD_PPS_SIZE, 1, set->cmds);
if (rc) {
pr_err("failed to create cmd packets, rc=%d\n", rc);
goto error;
}
rc = dsi_panel_tx_cmd_set(panel, DSI_CMD_SET_PPS);
if (rc) {
pr_err("[%s] failed to send DSI_CMD_SET_PPS cmds, rc=%d\n",
panel->name, rc);
}
dsi_panel_destroy_cmds_packets_buf(set);
error:
mutex_unlock(&panel->panel_lock);
return rc;
}
int dsi_panel_set_lp1(struct dsi_panel *panel)
{
int rc = 0;
if (!panel) {
pr_err("invalid params\n");
return -EINVAL;
}
if (panel->type == EXT_BRIDGE)
return 0;
mutex_lock(&panel->panel_lock);
rc = dsi_panel_tx_cmd_set(panel, DSI_CMD_SET_LP1);
if (rc)
pr_err("[%s] failed to send DSI_CMD_SET_LP1 cmd, rc=%d\n",
panel->name, rc);
mutex_unlock(&panel->panel_lock);
return rc;
}
int dsi_panel_set_lp2(struct dsi_panel *panel)
{
int rc = 0;
if (!panel) {
pr_err("invalid params\n");
return -EINVAL;
}
if (panel->type == EXT_BRIDGE)
return 0;
mutex_lock(&panel->panel_lock);
rc = dsi_panel_tx_cmd_set(panel, DSI_CMD_SET_LP2);
if (rc)
pr_err("[%s] failed to send DSI_CMD_SET_LP2 cmd, rc=%d\n",
panel->name, rc);
mutex_unlock(&panel->panel_lock);
return rc;
}
int dsi_panel_set_nolp(struct dsi_panel *panel)
{
int rc = 0;
if (!panel) {
pr_err("invalid params\n");
return -EINVAL;
}
if (panel->type == EXT_BRIDGE)
return 0;
mutex_lock(&panel->panel_lock);
rc = dsi_panel_tx_cmd_set(panel, DSI_CMD_SET_NOLP);
if (rc)
pr_err("[%s] failed to send DSI_CMD_SET_NOLP cmd, rc=%d\n",
panel->name, rc);
mutex_unlock(&panel->panel_lock);
return rc;
}
int dsi_panel_prepare(struct dsi_panel *panel)
{
int rc = 0;
if (!panel) {
pr_err("invalid params\n");
return -EINVAL;
}
if (panel->type == EXT_BRIDGE)
return 0;
mutex_lock(&panel->panel_lock);
if (panel->lp11_init) {
rc = dsi_panel_power_on(panel);
if (rc) {
pr_err("[%s] panel power on failed, rc=%d\n",
panel->name, rc);
goto error;
}
}
rc = dsi_panel_tx_cmd_set(panel, DSI_CMD_SET_PRE_ON);
if (rc) {
pr_err("[%s] failed to send DSI_CMD_SET_PRE_ON cmds, rc=%d\n",
panel->name, rc);
goto error;
}
error:
mutex_unlock(&panel->panel_lock);
return rc;
}
static int dsi_panel_roi_prepare_dcs_cmds(struct dsi_panel_cmd_set *set,
struct dsi_rect *roi, int ctrl_idx, int unicast)
{
static const int ROI_CMD_LEN = 5;
int rc = 0;
/* DTYPE_DCS_LWRITE */
static char *caset, *paset;
set->cmds = NULL;
caset = kzalloc(ROI_CMD_LEN, GFP_KERNEL);
if (!caset) {
rc = -ENOMEM;
goto exit;
}
caset[0] = 0x2a;
caset[1] = (roi->x & 0xFF00) >> 8;
caset[2] = roi->x & 0xFF;
caset[3] = ((roi->x - 1 + roi->w) & 0xFF00) >> 8;
caset[4] = (roi->x - 1 + roi->w) & 0xFF;
paset = kzalloc(ROI_CMD_LEN, GFP_KERNEL);
if (!paset) {
rc = -ENOMEM;
goto error_free_mem;
}
paset[0] = 0x2b;
paset[1] = (roi->y & 0xFF00) >> 8;
paset[2] = roi->y & 0xFF;
paset[3] = ((roi->y - 1 + roi->h) & 0xFF00) >> 8;
paset[4] = (roi->y - 1 + roi->h) & 0xFF;
set->type = DSI_CMD_SET_ROI;
set->state = DSI_CMD_SET_STATE_LP;
set->count = 2; /* send caset + paset together */
set->cmds = kcalloc(set->count, sizeof(*set->cmds), GFP_KERNEL);
if (!set->cmds) {
rc = -ENOMEM;
goto error_free_mem;
}
set->cmds[0].msg.channel = 0;
set->cmds[0].msg.type = MIPI_DSI_DCS_LONG_WRITE;
set->cmds[0].msg.flags = unicast ? MIPI_DSI_MSG_UNICAST : 0;
set->cmds[0].msg.ctrl = unicast ? ctrl_idx : 0;
set->cmds[0].msg.tx_len = ROI_CMD_LEN;
set->cmds[0].msg.tx_buf = caset;
set->cmds[0].msg.rx_len = 0;
set->cmds[0].msg.rx_buf = 0;
set->cmds[0].msg.wait_ms = 0;
set->cmds[0].last_command = 0;
set->cmds[0].post_wait_ms = 0;
set->cmds[1].msg.channel = 0;
set->cmds[1].msg.type = MIPI_DSI_DCS_LONG_WRITE;
set->cmds[1].msg.flags = unicast ? MIPI_DSI_MSG_UNICAST : 0;
set->cmds[1].msg.ctrl = unicast ? ctrl_idx : 0;
set->cmds[1].msg.tx_len = ROI_CMD_LEN;
set->cmds[1].msg.tx_buf = paset;
set->cmds[1].msg.rx_len = 0;
set->cmds[1].msg.rx_buf = 0;
set->cmds[1].msg.wait_ms = 0;
set->cmds[1].last_command = 1;
set->cmds[1].post_wait_ms = 0;
goto exit;
error_free_mem:
kfree(caset);
kfree(paset);
kfree(set->cmds);
exit:
return rc;
}
int dsi_panel_send_roi_dcs(struct dsi_panel *panel, int ctrl_idx,
struct dsi_rect *roi)
{
int rc = 0;
struct dsi_panel_cmd_set *set;
struct dsi_display_mode_priv_info *priv_info;
if (!panel || !panel->cur_mode) {
pr_err("Invalid params\n");
return -EINVAL;
}
if (panel->type == EXT_BRIDGE)
return 0;
priv_info = panel->cur_mode->priv_info;
set = &priv_info->cmd_sets[DSI_CMD_SET_ROI];
rc = dsi_panel_roi_prepare_dcs_cmds(set, roi, ctrl_idx, true);
if (rc) {
pr_err("[%s] failed to prepare DSI_CMD_SET_ROI cmds, rc=%d\n",
panel->name, rc);
return rc;
}
pr_debug("[%s] send roi x %d y %d w %d h %d\n", panel->name,
roi->x, roi->y, roi->w, roi->h);
mutex_lock(&panel->panel_lock);
rc = dsi_panel_tx_cmd_set(panel, DSI_CMD_SET_ROI);
if (rc)
pr_err("[%s] failed to send DSI_CMD_SET_ROI cmds, rc=%d\n",
panel->name, rc);
mutex_unlock(&panel->panel_lock);
dsi_panel_destroy_cmd_packets(set);
return rc;
}
int dsi_panel_switch(struct dsi_panel *panel)
{
int rc = 0;
if (!panel) {
pr_err("Invalid params\n");
return -EINVAL;
}
if (panel->type == EXT_BRIDGE)
return 0;
mutex_lock(&panel->panel_lock);
rc = dsi_panel_tx_cmd_set(panel, DSI_CMD_SET_TIMING_SWITCH);
if (rc)
pr_err("[%s] failed to send DSI_CMD_SET_TIMING_SWITCH cmds, rc=%d\n",
panel->name, rc);
mutex_unlock(&panel->panel_lock);
return rc;
}
int dsi_panel_post_switch(struct dsi_panel *panel)
{
int rc = 0;
if (!panel) {
pr_err("Invalid params\n");
return -EINVAL;
}
if (panel->type == EXT_BRIDGE)
return 0;
mutex_lock(&panel->panel_lock);
rc = dsi_panel_tx_cmd_set(panel, DSI_CMD_SET_POST_TIMING_SWITCH);
if (rc)
pr_err("[%s] failed to send DSI_CMD_SET_POST_TIMING_SWITCH cmds, rc=%d\n",
panel->name, rc);
mutex_unlock(&panel->panel_lock);
return rc;
}
int dsi_panel_enable(struct dsi_panel *panel)
{
int rc = 0;
if (!panel) {
pr_err("Invalid params\n");
return -EINVAL;
}
if (panel->type == EXT_BRIDGE)
return 0;
mutex_lock(&panel->panel_lock);
rc = dsi_panel_tx_cmd_set(panel, DSI_CMD_SET_ON);
if (rc) {
pr_err("[%s] failed to send DSI_CMD_SET_ON cmds, rc=%d\n",
panel->name, rc);
}
panel->panel_initialized = true;
mutex_unlock(&panel->panel_lock);
return rc;
}
int dsi_panel_post_enable(struct dsi_panel *panel)
{
int rc = 0;
if (!panel) {
pr_err("invalid params\n");
return -EINVAL;
}
if (panel->type == EXT_BRIDGE)
return 0;
mutex_lock(&panel->panel_lock);
rc = dsi_panel_tx_cmd_set(panel, DSI_CMD_SET_POST_ON);
if (rc) {
pr_err("[%s] failed to send DSI_CMD_SET_POST_ON cmds, rc=%d\n",
panel->name, rc);
goto error;
}
error:
mutex_unlock(&panel->panel_lock);
return rc;
}
int dsi_panel_pre_disable(struct dsi_panel *panel)
{
int rc = 0;
if (!panel) {
pr_err("invalid params\n");
return -EINVAL;
}
if (panel->type == EXT_BRIDGE)
return 0;
mutex_lock(&panel->panel_lock);
rc = dsi_panel_tx_cmd_set(panel, DSI_CMD_SET_PRE_OFF);
if (rc) {
pr_err("[%s] failed to send DSI_CMD_SET_PRE_OFF cmds, rc=%d\n",
panel->name, rc);
goto error;
}
error:
mutex_unlock(&panel->panel_lock);
return rc;
}
int dsi_panel_disable(struct dsi_panel *panel)
{
int rc = 0;
if (!panel) {
pr_err("invalid params\n");
return -EINVAL;
}
if (panel->type == EXT_BRIDGE)
return 0;
mutex_lock(&panel->panel_lock);
/* Avoid sending panel off commands when ESD recovery is underway */
if (!atomic_read(&panel->esd_recovery_pending)) {
rc = dsi_panel_tx_cmd_set(panel, DSI_CMD_SET_OFF);
if (rc) {
pr_err("[%s] failed to send DSI_CMD_SET_OFF cmds, rc=%d\n",
panel->name, rc);
goto error;
}
}
panel->panel_initialized = false;
error:
mutex_unlock(&panel->panel_lock);
return rc;
}
int dsi_panel_unprepare(struct dsi_panel *panel)
{
int rc = 0;
if (!panel) {
pr_err("invalid params\n");
return -EINVAL;
}
if (panel->type == EXT_BRIDGE)
return 0;
mutex_lock(&panel->panel_lock);
rc = dsi_panel_tx_cmd_set(panel, DSI_CMD_SET_POST_OFF);
if (rc) {
pr_err("[%s] failed to send DSI_CMD_SET_POST_OFF cmds, rc=%d\n",
panel->name, rc);
goto error;
}
error:
mutex_unlock(&panel->panel_lock);
return rc;
}
int dsi_panel_post_unprepare(struct dsi_panel *panel)
{
int rc = 0;
if (!panel) {
pr_err("invalid params\n");
return -EINVAL;
}
if (panel->type == EXT_BRIDGE)
return 0;
mutex_lock(&panel->panel_lock);
rc = dsi_panel_power_off(panel);
if (rc) {
pr_err("[%s] panel power_Off failed, rc=%d\n",
panel->name, rc);
goto error;
}
error:
mutex_unlock(&panel->panel_lock);
return rc;
}