/* 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 rst_gpio = reset_gpio.pin_id;
uint32_t platform_id = board_platform_id();
uint32_t hardware_id = board_hardware_id();
struct pm8x41_gpio resetgpio_param = {
.direction = PM_GPIO_DIR_OUT,
.output_buffer = PM_GPIO_OUT_CMOS,
.out_strength = PM_GPIO_OUT_DRIVE_MED,
};
if (platform_id == MSM8974AC)
if ((hardware_id == HW_PLATFORM_MTP)
|| (hardware_id == HW_PLATFORM_LIQUID))
rst_gpio = 20;
dprintf(SPEW, "platform_id: %u, rst_gpio: %u\n",
platform_id, rst_gpio);
pm8x41_gpio_config(rst_gpio, &resetgpio_param);
if (enable) {
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(enable_gpio.pin_id, resetseq->pin_direction);
pm8x41_gpio_set(rst_gpio, resetseq->pin_state[0]);
mdelay(resetseq->sleep[0]);
pm8x41_gpio_set(rst_gpio, resetseq->pin_state[1]);
mdelay(resetseq->sleep[1]);
pm8x41_gpio_set(rst_gpio, resetseq->pin_state[2]);
mdelay(resetseq->sleep[2]);
} else {
resetgpio_param.out_strength = PM_GPIO_OUT_DRIVE_LOW;
pm8x41_gpio_config(rst_gpio, &resetgpio_param);
pm8x41_gpio_set(rst_gpio, PM_GPIO_FUNC_LOW);
gpio_set(enable_gpio.pin_id, resetseq->pin_direction);
}
return NO_ERROR;
}
static int msm8974_backlight_on()
{
static struct pm8x41_wled_data wled_ctrl = {
.mod_scheme = 0xC3,
.led1_brightness = (0x0F << 8) | 0xEF,
.led2_brightness = (0x0F << 8) | 0xEF,
.led3_brightness = (0x0F << 8) | 0xEF,
.max_duty_cycle = 0x01,
};
pm8x41_wled_config(&wled_ctrl);
pm8x41_wled_sink_control(1);
pm8x41_wled_iled_sync_control(1);
pm8x41_wled_enable(1);
return 0;
}
static int msm8974_mdss_dsi_panel_clock(uint8_t enable)
{
if (enable) {
mdp_gdsc_ctrl(enable);
mdp_clock_init();
mdss_dsi_uniphy_pll_config();
mmss_clock_init();
} else if(!target_cont_splash_screen()) {
// * Add here for continuous splash *
mmss_clock_disable();
mdp_clock_disable();
mdp_gdsc_ctrl(enable);
}
return 0;
}
/* Pull DISP_RST_N high to get panel out of reset */
static void msm8974_mdss_mipi_panel_reset(uint8_t enable)
{
struct pm8x41_gpio gpio19_param = {
.direction = PM_GPIO_DIR_OUT,
.output_buffer = PM_GPIO_OUT_CMOS,
.out_strength = PM_GPIO_OUT_DRIVE_MED,
};
pm8x41_gpio_config(19, &gpio19_param);
if (enable) {
gpio_tlmm_config(58, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_8MA, GPIO_DISABLE);
pm8x41_gpio_set(19, PM_GPIO_FUNC_HIGH);
mdelay(2);
pm8x41_gpio_set(19, PM_GPIO_FUNC_LOW);
mdelay(5);
pm8x41_gpio_set(19, PM_GPIO_FUNC_HIGH);
mdelay(2);
gpio_set(58, 2);
} else {
gpio19_param.out_strength = PM_GPIO_OUT_DRIVE_LOW;
pm8x41_gpio_config(19, &gpio19_param);
pm8x41_gpio_set(19, PM_GPIO_FUNC_LOW);
gpio_set(58, 2);
}
}
static int msm8974_mipi_panel_power(uint8_t enable)
{
if (enable) {
/* Enable backlight */
msm8974_backlight_on();
/* Turn on LDO8 for lcd1 mipi vdd */
dprintf(SPEW, " Setting LDO22\n");
pm8x41_ldo_set_voltage("LDO22", 3000000);
pm8x41_ldo_control("LDO22", enable);
dprintf(SPEW, " Setting LDO12\n");
/* Turn on LDO23 for lcd1 mipi vddio */
pm8x41_ldo_set_voltage("LDO12", 1800000);
pm8x41_ldo_control("LDO12", enable);
dprintf(SPEW, " Setting LDO2\n");
/* Turn on LDO2 for vdda_mipi_dsi */
pm8x41_ldo_set_voltage("LDO2", 1200000);
pm8x41_ldo_control("LDO2", enable);
dprintf(SPEW, " Panel Reset \n");
/* Panel Reset */
msm8974_mdss_mipi_panel_reset(enable);
dprintf(SPEW, " Panel Reset Done\n");
} else {
msm8974_mdss_mipi_panel_reset(enable);
pm8x41_wled_enable(enable);
pm8x41_ldo_control("LDO2", enable);
pm8x41_ldo_control("LDO22", enable);
}
return 0;
}
void display_init(void)
{
uint32_t hw_id = board_hardware_id();
uint32_t soc_ver = board_soc_version();
dprintf(INFO, "display_init(),target_id=%d.\n", hw_id);
switch (hw_id) {
case HW_PLATFORM_MTP:
case HW_PLATFORM_FLUID:
case HW_PLATFORM_SURF:
mipi_toshiba_video_720p_init(&(panel.panel_info));
panel.clk_func = msm8974_mdss_dsi_panel_clock;
panel.power_func = msm8974_mipi_panel_power;
panel.fb.base = MIPI_FB_ADDR;
panel.fb.width = panel.panel_info.xres;
panel.fb.height = panel.panel_info.yres;
panel.fb.stride = panel.panel_info.xres;
panel.fb.bpp = panel.panel_info.bpp;
panel.fb.format = FB_FORMAT_RGB888;
panel.mdp_rev = MDP_REV_50;
break;
default:
return;
};
if (msm_display_init(&panel)) {
dprintf(CRITICAL, "Display init failed!\n");
return;
}
display_enable = 1;
}
