TononixOS/ubports_kernel_google_msm
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msm: board-8930: add gpio-controlled backlight function

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The function pointer is passed to driver to turn on/off backlight to
avoid garbage display.

(cherry picked from commit a07d78743024144158a7b2cc0c194ae75e9b6bea)

CRs-fixed: 408728
Change-Id: Ibb218246bd3414b7004289e5afd0594a186374f1
Signed-off-by: Huaibin Yang <huaibiny@codeaurora.org>
This commit is contained in:
Huaibin Yang
2012-11-08 14:05:24 -08:00
committed by Stephen Boyd
parent f32dfe2ee0
commit ca2b4a561c
2 changed files with 14 additions and 4 deletions
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17
arch/arm/mach-msm/board-8930-display.c
View File

@@ -124,6 +124,15 @@ static struct platform_device msm_fb_device = {
};
static bool dsi_power_on;
static struct mipi_dsi_panel_platform_data novatek_pdata;
static void pm8917_gpio_set_backlight(int bl_level)
{
int gpio24 = PM8917_GPIO_PM_TO_SYS(24);
if (bl_level > 0)
gpio_set_value_cansleep(gpio24, 1);
else
gpio_set_value_cansleep(gpio24, 0);
}
/*
* TODO: When physical 8930/PM8038 hardware becomes
@@ -206,9 +215,13 @@ static int mipi_dsi_cdp_panel_power(int on)
rc);
return -ENODEV;
}
gpio_set_value_cansleep(gpio24, 0);
novatek_pdata.gpio_set_backlight =
pm8917_gpio_set_backlight;
}
dsi_power_on = true;
}
if (on) {
rc = regulator_set_optimum_mode(reg_l8, 100000);
if (rc < 0) {
@@ -248,8 +261,6 @@ static int mipi_dsi_cdp_panel_power(int on)
gpio_set_value(DISP_RST_GPIO, 1);
gpio_set_value(DISP_3D_2D_MODE, 1);
usleep(20);
if (socinfo_get_pmic_model() == PMIC_MODEL_PM8917)
gpio_set_value_cansleep(gpio24, 1);
} else {
gpio_set_value(DISP_RST_GPIO, 0);
@@ -286,8 +297,6 @@ static int mipi_dsi_cdp_panel_power(int on)
}
gpio_set_value(DISP_3D_2D_MODE, 0);
usleep(20);
if (socinfo_get_pmic_model() == PMIC_MODEL_PM8917)
gpio_set_value_cansleep(gpio24, 0);
}
return 0;
}

1
arch/arm/mach-msm/include/mach/board.h
View File

@@ -457,6 +457,7 @@ struct mipi_dsi_panel_platform_data {
char dlane_swap;
void (*dsi_pwm_cfg)(void);
char enable_wled_bl_ctrl;
void (*gpio_set_backlight)(int bl_level);
};
struct lvds_panel_platform_data {