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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 <scm.h>
#include <platform/gpio.h>
#include <platform/iomap.h>
#include <target/display.h>
#include <i2c_qup.h>
#include <blsp_qup.h>
#include "include/panel.h"
#include "include/display_resource.h"
#define VCO_DELAY_USEC 1000
#define GPIO_STATE_LOW 0
#define GPIO_STATE_HIGH 2
#define RESET_GPIO_SEQ_LEN 3
#define PWM_DUTY_US 13
#define PWM_PERIOD_US 27
static void mdss_dsi_uniphy_pll_sw_reset_8916(uint32_t pll_base)
{
writel(0x01, pll_base + 0x0068); /* PLL TEST CFG */
mdelay(1);
writel(0x00, pll_base + 0x0068); /* PLL TEST CFG */
mdelay(1);
}
static uint32_t dsi_pll_enable_seq_8916(uint32_t pll_base)
{
uint32_t pll_locked = 0;
writel(0x01, pll_base + 0x0068); /* PLL TEST CFG */
udelay(1);
writel(0x00, pll_base + 0x0068); /* PLL TEST CFG */
/*
* Add hardware recommended delays between register writes for
* the updates to take effect. These delays are necessary for the
* PLL to successfully lock
*/
writel(0x34, pll_base + 0x0070); /* CAL CFG1*/
udelay(1);
writel(0x01, pll_base + 0x0020); /* GLB CFG */
udelay(1);
writel(0x05, pll_base + 0x0020); /* GLB CFG */
udelay(1);
writel(0x0f, pll_base + 0x0020); /* GLB CFG */
udelay(1);
writel(0x04, pll_base + 0x0064); /* LKDetect CFG2 */
udelay(1);
writel(0x05, pll_base + 0x0064); /* LKDetect CFG2 */
udelay(512);
pll_locked = readl(pll_base + 0x00c0) & 0x01;
return pll_locked;
}
int target_backlight_ctrl(struct backlight *bl, uint8_t enable)
{
struct pm8x41_mpp mpp;
int rc;
if (bl->bl_interface_type == BL_DCS)
return 0;
mpp.base = PM8x41_MMP4_BASE;
mpp.vin = MPP_VIN0;
if (enable) {
pm_pwm_enable(false);
rc = pm_pwm_config(PWM_DUTY_US, PWM_PERIOD_US);
if (rc < 0)
mpp.mode = MPP_HIGH;
else {
mpp.mode = MPP_DTEST1;
pm_pwm_enable(true);
}
pm8x41_config_output_mpp(&mpp);
pm8x41_enable_mpp(&mpp, MPP_ENABLE);
} else {
pm_pwm_enable(false);
pm8x41_enable_mpp(&mpp, MPP_DISABLE);
}
mdelay(20);
return 0;
}
int target_panel_clock(uint8_t enable, struct msm_panel_info *pinfo)
{
int32_t ret = 0;
struct mdss_dsi_pll_config *pll_data;
dprintf(SPEW, "target_panel_clock\n");
pll_data = pinfo->mipi.dsi_pll_config;
pll_data->vco_delay = VCO_DELAY_USEC;
if (enable) {
mdp_gdsc_ctrl(enable);
mdss_bus_clocks_enable();
mdp_clock_enable();
ret = restore_secure_cfg(SECURE_DEVICE_MDSS);
if (ret) {
dprintf(CRITICAL,
"%s: Failed to restore MDP security configs",
__func__);
mdp_clock_disable();
mdss_bus_clocks_disable();
mdp_gdsc_ctrl(0);
return ret;
}
mdss_dsi_uniphy_pll_sw_reset_8916(DSI0_PLL_BASE);
mdss_dsi_auto_pll_config(DSI0_PLL_BASE,
MIPI_DSI0_BASE, pll_data);
if (!dsi_pll_enable_seq_8916(DSI0_PLL_BASE))
dprintf(CRITICAL, "Not able to enable the pll\n");
gcc_dsi_clocks_enable(pinfo->mipi.dual_dsi, pll_data->pclk_m,
pll_data->pclk_n,
pll_data->pclk_d);
} else if(!target_cont_splash_screen()) {
gcc_dsi_clocks_disable(pinfo->mipi.dual_dsi);
mdp_clock_disable();
mdss_bus_clocks_disable();
mdp_gdsc_ctrl(enable);
}
return 0;
}
#define QRD_LCD_I2C_ADDRESS 0x3E
#define QRD_LCD_VPOS_ADDRESS 0x00
#define QRD_LCD_VNEG_ADDRESS 0x01
#define QRD_LCD_DIS_ADDRESS 0x03
#define QRD_LCD_CONTROL_ADDRESS 0xFF
static struct qup_i2c_dev *i2c_dev;
static int qrd_lcd_i2c_read(uint8_t addr)
{
int ret = 0;
/* Create a i2c_msg buffer, that is used to put the controller into read
mode and then to read some data. */
struct i2c_msg msg_buf[] = {
{QRD_LCD_I2C_ADDRESS, I2C_M_WR, 1, &addr},
{QRD_LCD_I2C_ADDRESS, I2C_M_RD, 1, &ret}
};
ret = qup_i2c_xfer(i2c_dev, msg_buf, 2);
if(ret < 0) {
dprintf(CRITICAL, "qup_i2c_xfer error %d\n", ret);
return ret;
}
return 0;
}
static int qrd_lcd_i2c_write(uint8_t addr, uint8_t val)
{
int ret = 0;
uint8_t data_buf[] = { addr, val };
/* Create a i2c_msg buffer, that is used to put the controller into write
mode and then to write some data. */
struct i2c_msg msg_buf[] = { {QRD_LCD_I2C_ADDRESS,
I2C_M_WR, 2, data_buf}
};
ret = qup_i2c_xfer(i2c_dev, msg_buf, 1);
if(ret < 0) {
dprintf(CRITICAL, "qup_i2c_xfer error %d\n", ret);
return ret;
}
return 0;
}
static int target_panel_reset_skuh(uint8_t enable)
{
int ret = NO_ERROR;
if (enable) {
/* for tps65132 ENP pin */
gpio_tlmm_config(enp_gpio.pin_id, 0,
enp_gpio.pin_direction, enp_gpio.pin_pull,
enp_gpio.pin_strength,
enp_gpio.pin_state);
gpio_set_dir(enp_gpio.pin_id, 2);
/* for tps65132 ENN pin*/
gpio_tlmm_config(enn_gpio.pin_id, 0,
enn_gpio.pin_direction, enn_gpio.pin_pull,
enn_gpio.pin_strength,
enn_gpio.pin_state);
gpio_set_dir(enn_gpio.pin_id, 2);
i2c_dev = qup_blsp_i2c_init(BLSP_ID_1, QUP_ID_1, 100000, 19200000);
if(!i2c_dev) {
dprintf(CRITICAL, "qup_blsp_i2c_init failed \n");
ASSERT(0);
}
ret = qrd_lcd_i2c_write(QRD_LCD_VPOS_ADDRESS, 0x0E); /* 5.4V */
if (ret) {
dprintf(CRITICAL, "VPOS Register: I2C Write failure\n");
}
ret = qrd_lcd_i2c_write(QRD_LCD_VNEG_ADDRESS, 0x0E); /* -5.4V */
if (ret) {
dprintf(CRITICAL, "VNEG Register: I2C write failure\n");
}
ret = qrd_lcd_i2c_write(QRD_LCD_DIS_ADDRESS, 0x0F);
if (ret) {
dprintf(CRITICAL, "Apps freq DIS Register: I2C write failure\n");
}
ret = qrd_lcd_i2c_write(QRD_LCD_CONTROL_ADDRESS, 0xF0);
if (ret) {
dprintf(CRITICAL, "Control Register: I2C write failure\n");
}
} else {
gpio_set_dir(enp_gpio.pin_id, 0); /* ENP */
gpio_set_dir(enn_gpio.pin_id, 0); /* ENN */
}
return 0;
}
static int target_panel_reset_skuk(uint8_t enable)
{
if (enable) {
/* for tps65132 ENP pin*/
gpio_tlmm_config(enp_gpio_skuk.pin_id, 0,
enp_gpio_skuk.pin_direction, enp_gpio_skuk.pin_pull,
enp_gpio_skuk.pin_strength, enp_gpio_skuk.pin_state);
gpio_set_dir(enp_gpio_skuk.pin_id, 2);
/* for tps65132 ENN pin*/
gpio_tlmm_config(enn_gpio_skuk.pin_id, 0,
enn_gpio_skuk.pin_direction, enn_gpio_skuk.pin_pull,
enn_gpio_skuk.pin_strength, enn_gpio_skuk.pin_state);
gpio_set_dir(enn_gpio_skuk.pin_id, 2);
/* configure backlight gpio for SKUK */
gpio_tlmm_config(bkl_gpio_skuk.pin_id, 0,
bkl_gpio_skuk.pin_direction, bkl_gpio_skuk.pin_pull,
bkl_gpio_skuk.pin_strength, bkl_gpio_skuk.pin_state);
gpio_set_dir(bkl_gpio_skuk.pin_id, 2);
} else {
gpio_set_dir(bkl_gpio_skuk.pin_id, 0);
gpio_set_dir(enp_gpio_skuk.pin_id, 0); /* ENP */
gpio_set_dir(enn_gpio_skuk.pin_id, 0); /* ENN */
}
return 0;
}
int target_panel_reset(uint8_t enable, struct panel_reset_sequence *resetseq,
struct msm_panel_info *pinfo)
{
int ret = NO_ERROR;
uint32_t hw_id = board_hardware_id();
uint32_t hw_subtype = board_hardware_subtype();
if (enable) {
if (pinfo->mipi.use_enable_gpio) {
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_set_dir(enable_gpio.pin_id, 2);
}
if (platform_is_msm8939()) {
if ((hw_id == HW_PLATFORM_QRD) &&
(hw_subtype == HW_PLATFORM_SUBTYPE_SKUK))
target_panel_reset_skuk(enable);
} else { /* msm8916 */
if ((hw_id == HW_PLATFORM_QRD) &&
(hw_subtype == HW_PLATFORM_SUBTYPE_SKUH))
target_panel_reset_skuh(enable);
}
if (hw_id == HW_PLATFORM_MTP || hw_id == HW_PLATFORM_SURF) {
/* configure backlight gpio for MTP & CDP */
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_dir(bkl_gpio.pin_id, 2);
}
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_set_dir(reset_gpio.pin_id, 2);
/* reset */
for (int i = 0; i < RESET_GPIO_SEQ_LEN; i++) {
if (resetseq->pin_state[i] == GPIO_STATE_LOW)
gpio_set_dir(reset_gpio.pin_id, GPIO_STATE_LOW);
else
gpio_set_dir(reset_gpio.pin_id, GPIO_STATE_HIGH);
mdelay(resetseq->sleep[i]);
}
} else if(!target_cont_splash_screen()) {
gpio_set_dir(reset_gpio.pin_id, 0);
if (pinfo->mipi.use_enable_gpio)
gpio_set_dir(enable_gpio.pin_id, 0);
if (platform_is_msm8939()) {
if ((hw_id == HW_PLATFORM_QRD) &&
(hw_subtype == HW_PLATFORM_SUBTYPE_SKUK))
target_panel_reset_skuk(enable);
} else { /* msm8916 */
if ((hw_id == HW_PLATFORM_QRD) &&
(hw_subtype == HW_PLATFORM_SUBTYPE_SKUH))
target_panel_reset_skuh(enable);
}
}
return ret;
}
int target_ldo_ctrl(uint8_t enable, struct msm_panel_info *pinfo)
{
/*
* The PMIC regulators needed for display are enabled in SBL.
* There is no access to the regulators is LK.
*/
return NO_ERROR;
}
bool target_display_panel_node(char *panel_name, char *pbuf, uint16_t buf_size)
{
return gcdb_display_cmdline_arg(panel_name, pbuf, buf_size);
}
void target_display_init(const char *panel_name)
{
uint32_t panel_loop = 0;
uint32_t ret = 0;
panel_name += strspn(panel_name, " ");
if ((!strcmp(panel_name, NO_PANEL_CONFIG))
|| (!strcmp(panel_name, SIM_VIDEO_PANEL))) {
dprintf(INFO, "Selected panel: %s\nSkip panel configuration\n",
panel_name);
return;
}
do {
ret = gcdb_display_init(panel_name, MDP_REV_50, MIPI_FB_ADDR);
if (!ret || ret == ERR_NOT_SUPPORTED) {
break;
} else {
target_force_cont_splash_disable(true);
msm_display_off();
target_force_cont_splash_disable(false);
}
} while (++panel_loop <= oem_panel_max_auto_detect_panels());
}
void target_display_shutdown(void)
{
gcdb_display_shutdown();
}