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/* Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <debug.h>
#include <smem.h>
#include <err.h>
#include <msm_panel.h>
#include <mipi_dsi.h>
#include <pm8x41.h>
#include <pm8x41_wled.h>
#include <board.h>
#include <mdp5.h>
#include <endian.h>
#include <platform/gpio.h>
#include <platform/clock.h>
#include <platform/iomap.h>
#include <target/display.h>
#include "include/panel.h"
#include "include/display_resource.h"
#define HFPLL_LDO_ID 12
#define GPIO_STATE_LOW 0
#define GPIO_STATE_HIGH 2
#define RESET_GPIO_SEQ_LEN 3
static uint32_t dsi_pll_lock_status(uint32_t pll_base)
{
uint32_t counter, status;
udelay(100);
mdss_dsi_uniphy_pll_lock_detect_setting(pll_base);
status = readl(pll_base + 0x00c0) & 0x01;
for (counter = 0; counter < 5 && !status; counter++) {
udelay(100);
status = readl(pll_base + 0x00c0) & 0x01;
}
return status;
}
static uint32_t dsi_pll_enable_seq_b(uint32_t pll_base)
{
mdss_dsi_uniphy_pll_sw_reset(pll_base);
writel(0x01, pll_base + 0x0020); /* GLB CFG */
udelay(1);
writel(0x05, pll_base + 0x0020); /* GLB CFG */
udelay(200);
writel(0x07, pll_base + 0x0020); /* GLB CFG */
udelay(500);
writel(0x0f, pll_base + 0x0020); /* GLB CFG */
udelay(500);
return dsi_pll_lock_status(pll_base);
}
static uint32_t dsi_pll_enable_seq_d(uint32_t pll_base)
{
mdss_dsi_uniphy_pll_sw_reset(pll_base);
writel(0x01, pll_base + 0x0020); /* GLB CFG */
udelay(1);
writel(0x05, pll_base + 0x0020); /* GLB CFG */
udelay(200);
writel(0x07, pll_base + 0x0020); /* GLB CFG */
udelay(250);
writel(0x05, pll_base + 0x0020); /* GLB CFG */
udelay(200);
writel(0x07, pll_base + 0x0020); /* GLB CFG */
udelay(500);
writel(0x0f, pll_base + 0x0020); /* GLB CFG */
udelay(500);
return dsi_pll_lock_status(pll_base);
}
static void dsi_pll_enable_seq(uint32_t pll_base)
{
uint32_t counter, status;
for (counter = 0; counter < 3; counter++) {
status = dsi_pll_enable_seq_b(pll_base);
if (status)
break;
status = dsi_pll_enable_seq_d(pll_base);
if (status)
break;
status = dsi_pll_enable_seq_d(pll_base);
if(status)
break;
}
if (!status)
dprintf(CRITICAL, "Pll lock sequence failed\n");
}
int target_backlight_ctrl(struct backlight *bl, uint8_t enable)
{
struct pm8x41_gpio pwmgpio_param = {
.direction = PM_GPIO_DIR_OUT,
.function = PM_GPIO_FUNC_1,
.vin_sel = 2, /* VIN_2 */
.pull = PM_GPIO_PULL_UP_1_5 | PM_GPIO_PULLDOWN_10,
.output_buffer = PM_GPIO_OUT_CMOS,
.out_strength = 0x03,
};
if (enable) {
pm8x41_gpio_config(pwm_gpio.pin_id, &pwmgpio_param);
/* lpg channel 2 */
pm8x41_lpg_write(PWM_BL_LPG_CHAN_ID, 0x41, 0x33); /* LPG_PWM_SIZE_CLK, */
pm8x41_lpg_write(PWM_BL_LPG_CHAN_ID, 0x42, 0x01); /* LPG_PWM_FREQ_PREDIV */
pm8x41_lpg_write(PWM_BL_LPG_CHAN_ID, 0x43, 0x20); /* LPG_PWM_TYPE_CONFIG */
pm8x41_lpg_write(PWM_BL_LPG_CHAN_ID, 0x44, 0xcc); /* LPG_VALUE_LSB */
pm8x41_lpg_write(PWM_BL_LPG_CHAN_ID, 0x45, 0x00); /* LPG_VALUE_MSB */
pm8x41_lpg_write(PWM_BL_LPG_CHAN_ID, 0x46, 0xe4); /* LPG_ENABLE_CONTROL */
} else {
pm8x41_lpg_write(PWM_BL_LPG_CHAN_ID, 0x46, 0x0); /* LPG_ENABLE_CONTROL */
}
return NO_ERROR;
}
int target_panel_clock(uint8_t enable, struct msm_panel_info *pinfo)
{
struct mdss_dsi_pll_config *pll_data;
uint32_t dual_dsi = pinfo->mipi.dual_dsi;
dprintf(SPEW, "target_panel_clock\n");
pll_data = pinfo->mipi.dsi_pll_config;
if (enable) {
mdp_gdsc_ctrl(enable);
mmss_bus_clock_enable();
mdp_clock_enable();
mdss_dsi_auto_pll_config(DSI0_PLL_BASE,
MIPI_DSI0_BASE, pll_data);
dsi_pll_enable_seq(DSI0_PLL_BASE);
if (pinfo->mipi.dual_dsi &&
!(pinfo->mipi.broadcast)) {
mdss_dsi_auto_pll_config(DSI1_PLL_BASE,
MIPI_DSI1_BASE, pll_data);
dsi_pll_enable_seq(DSI1_PLL_BASE);
}
mmss_dsi_clock_enable(DSI0_PHY_PLL_OUT, dual_dsi,
pll_data->pclk_m,
pll_data->pclk_n,
pll_data->pclk_d);
} else if(!target_cont_splash_screen()) {
/* Disable clocks if continuous splash off */
mmss_dsi_clock_disable(dual_dsi);
mdp_clock_disable();
mmss_bus_clock_disable();
mdp_gdsc_ctrl(enable);
}
return NO_ERROR;
}
/* Pull DISP_RST_N high to get panel out of reset */
int target_panel_reset(uint8_t enable, struct panel_reset_sequence *resetseq,
struct msm_panel_info *pinfo)
{
uint32_t i = 0;
if (enable) {
gpio_tlmm_config(reset_gpio.pin_id, 0,
reset_gpio.pin_direction, reset_gpio.pin_pull,
reset_gpio.pin_strength, reset_gpio.pin_state);
gpio_tlmm_config(enable_gpio.pin_id, 0,
enable_gpio.pin_direction, enable_gpio.pin_pull,
enable_gpio.pin_strength, enable_gpio.pin_state);
gpio_tlmm_config(bkl_gpio.pin_id, 0,
bkl_gpio.pin_direction, bkl_gpio.pin_pull,
bkl_gpio.pin_strength, bkl_gpio.pin_state);
gpio_set(enable_gpio.pin_id, 2);
gpio_set(bkl_gpio.pin_id, 2);
/* reset */
for (i = 0; i < RESET_GPIO_SEQ_LEN; i++) {
if (resetseq->pin_state[i] == GPIO_STATE_LOW)
gpio_set(reset_gpio.pin_id, GPIO_STATE_LOW);
else
gpio_set(reset_gpio.pin_id, GPIO_STATE_HIGH);
mdelay(resetseq->sleep[i]);
}
} else {
gpio_set(reset_gpio.pin_id, 0);
gpio_set(enable_gpio.pin_id, 0);
gpio_set(bkl_gpio.pin_id, 0);
}
return NO_ERROR;
}
int target_ldo_ctrl(uint8_t enable)
{
uint32_t ldocounter = 0;
uint32_t pm8x41_ldo_base = 0x13F00;
while (ldocounter < TOTAL_LDO_DEFINED) {
struct pm8x41_ldo ldo_entry = LDO((pm8x41_ldo_base +
0x100 * ldo_entry_array[ldocounter].ldo_id),
ldo_entry_array[ldocounter].ldo_type);
dprintf(SPEW, "Setting %s\n",
ldo_entry_array[ldocounter].ldo_id);
/* Set voltage during power on */
if (enable) {
pm8x41_ldo_set_voltage(&ldo_entry,
ldo_entry_array[ldocounter].ldo_voltage);
pm8x41_ldo_control(&ldo_entry, enable);
} else if(ldo_entry_array[ldocounter].ldo_id != HFPLL_LDO_ID) {
pm8x41_ldo_control(&ldo_entry, enable);
}
ldocounter++;
}
return NO_ERROR;
}
int target_display_pre_on()
{
writel(0x000000FA, MDP_QOS_REMAPPER_CLASS_0);
writel(0x00000055, MDP_QOS_REMAPPER_CLASS_1);
writel(0xC0000CCD, MDP_CLK_CTRL0);
writel(0xD0000CCC, MDP_CLK_CTRL1);
writel(0x00CCCCCC, MDP_CLK_CTRL2);
writel(0x000000CC, MDP_CLK_CTRL6);
writel(0x0CCCC0C0, MDP_CLK_CTRL3);
writel(0xCCCCC0C0, MDP_CLK_CTRL4);
writel(0xCCCCC0C0, MDP_CLK_CTRL5);
writel(0x00CCC000, MDP_CLK_CTRL7);
writel(0x00080808, VBIF_VBIF_IN_RD_LIM_CONF0);
writel(0x08000808, VBIF_VBIF_IN_RD_LIM_CONF1);
writel(0x00080808, VBIF_VBIF_IN_RD_LIM_CONF2);
writel(0x00000808, VBIF_VBIF_IN_RD_LIM_CONF3);
writel(0x10000000, VBIF_VBIF_IN_WR_LIM_CONF0);
writel(0x00100000, VBIF_VBIF_IN_WR_LIM_CONF1);
writel(0x10000000, VBIF_VBIF_IN_WR_LIM_CONF2);
writel(0x00000000, VBIF_VBIF_IN_WR_LIM_CONF3);
writel(0x00013fff, VBIF_VBIF_ABIT_SHORT);
writel(0x000000A4, VBIF_VBIF_ABIT_SHORT_CONF);
writel(0x00003FFF, VBIF_VBIF_GATE_OFF_WRREQ_EN);
writel(0x00000003, VBIF_VBIF_DDR_RND_RBN_QOS_ARB);
return NO_ERROR;
}
bool target_display_panel_node(char *panel_name, char *pbuf, uint16_t buf_size)
{
int prefix_string_len = strlen(DISPLAY_CMDLINE_PREFIX);
bool ret = true;
panel_name += strspn(panel_name, " ");
if (!strcmp(panel_name, HDMI_PANEL_NAME)) {
if (buf_size < (prefix_string_len + LK_OVERRIDE_PANEL_LEN +
HDMI_CONTROLLER_STRING)) {
dprintf(CRITICAL, "command line argument is greater than buffer size\n");
return false;
}
strlcpy(pbuf, DISPLAY_CMDLINE_PREFIX, buf_size);
buf_size -= prefix_string_len;
strlcat(pbuf, LK_OVERRIDE_PANEL, buf_size);
buf_size -= LK_OVERRIDE_PANEL_LEN;
strlcat(pbuf, HDMI_CONTROLLER_STRING, buf_size);
} else {
ret = gcdb_display_cmdline_arg(pbuf, buf_size);
}
return ret;
}
void target_display_init(const char *panel_name)
{
uint32_t ret = 0;
panel_name += strspn(panel_name, " ");
if (!strcmp(panel_name, HDMI_PANEL_NAME)) {
dprintf(INFO, "%s: HDMI is primary\n", __func__);
return;
}
ret = gcdb_display_init(panel_name, MDP_REV_50, MIPI_FB_ADDR);
if (ret) {
msm_display_off();
}
}
void target_display_shutdown(void)
{
gcdb_display_shutdown();
}