diff options
| author | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2012-12-12 16:27:08 +0100 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2012-12-12 16:27:08 +0100 |
| commit | 0ffbb693e3494f16574439e07d4387a14055d8fc (patch) | |
| tree | 53f0f68a52859807b8457a327c9bfedf41668280 /arch/arm/mach-tegra/board-colibri_t20-panel.c | |
| parent | 97f194075b5c332a941751552b467547d7a3ab0a (diff) | |
colibri_t20: implement DAC power save for Iris carrier board
The Iris carrier board by default uses SODIMM pin 73 as DAC power save.
Note: This conflicts with the CAN interrupt on the new EvalBoard v3.1a.
Diffstat (limited to 'arch/arm/mach-tegra/board-colibri_t20-panel.c')
| -rw-r--r-- | arch/arm/mach-tegra/board-colibri_t20-panel.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/board-colibri_t20-panel.c b/arch/arm/mach-tegra/board-colibri_t20-panel.c index 6cb83ce29cf5..ef612b1ac5f5 100644 --- a/arch/arm/mach-tegra/board-colibri_t20-panel.c +++ b/arch/arm/mach-tegra/board-colibri_t20-panel.c @@ -45,6 +45,9 @@ #define colibri_t20_bl_enb TEGRA_GPIO_PT4 /* BL_ON */ #endif #define colibri_t20_hdmi_hpd TEGRA_GPIO_PN7 /* HOTPLUG_DETECT */ +#ifdef IRIS +#define iris_dac_psave TEGRA_GPIO_PA0 /* DAC_PSAVE# */ +#endif #ifdef CONFIG_TEGRA_DC static struct regulator *colibri_t20_hdmi_reg = NULL; @@ -113,11 +116,17 @@ static struct platform_device colibri_t20_backlight_device = { #ifdef CONFIG_TEGRA_DC static int colibri_t20_panel_enable(void) { +#ifdef IRIS + gpio_set_value(iris_dac_psave, 1); +#endif return 0; } static int colibri_t20_panel_disable(void) { +#ifdef IRIS + gpio_set_value(iris_dac_psave, 0); +#endif return 0; } @@ -498,6 +507,11 @@ int __init colibri_t20_panel_init(void) struct resource __maybe_unused *res; void __iomem *to_io; +#ifdef IRIS + gpio_request(iris_dac_psave, "Iris DAC_PSAVE#"); + gpio_direction_output(iris_dac_psave, 1); +#endif /* IRIS */ + /* enable hdmi hotplug gpio for hotplug detection */ gpio_request(colibri_t20_hdmi_hpd, "hdmi_hpd"); gpio_direction_input(colibri_t20_hdmi_hpd); |