diff options
| author | Jon Mayo <jmayo@nvidia.com> | 2011-03-10 16:07:26 -0800 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:52:07 -0800 |
| commit | ee2c42400237c637c1616016b37a90d2e6e01dd5 (patch) | |
| tree | cae9571b9b4443b473fdfbc321d66031f94c87ad /arch/arm/mach-tegra/board-cardhu-panel.c | |
| parent | 1002735c500c8417bf4d23fa76ffbd0f08ab446f (diff) | |
tegra: cardhu: use earlysuspend for display
trigger display FB_BLANK_POWERDOWN during earlysuspend.
Original-Change-Id: I21c75bca28bd599730b93b84d2c5de1dcb40a74e
Reviewed-on: http://git-master/r/22472
Reviewed-by: Jonathan Mayo <jmayo@nvidia.com>
Tested-by: Jonathan Mayo <jmayo@nvidia.com>
Reviewed-by: Aleksandr Frid <afrid@nvidia.com>
Tested-by: Aleksandr Frid <afrid@nvidia.com>
Reviewed-by: Mayuresh Kulkarni <mkulkarni@nvidia.com>
Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
Original-Change-Id: I1a9bc8b499ab39cebea0a1435bfe519dba7c55c0
Rebase-Id: R63cbab44f6fb4b09f4396e238ef84f9a810c57b6
Diffstat (limited to 'arch/arm/mach-tegra/board-cardhu-panel.c')
| -rw-r--r-- | arch/arm/mach-tegra/board-cardhu-panel.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/board-cardhu-panel.c b/arch/arm/mach-tegra/board-cardhu-panel.c index e5d5d345ad8b..b667fbe2508b 100644 --- a/arch/arm/mach-tegra/board-cardhu-panel.c +++ b/arch/arm/mach-tegra/board-cardhu-panel.c @@ -24,6 +24,7 @@ #include <linux/resource.h> #include <asm/mach-types.h> #include <linux/platform_device.h> +#include <linux/earlysuspend.h> #include <linux/pwm_backlight.h> #include <asm/atomic.h> #include <linux/nvhost.h> @@ -1039,6 +1040,25 @@ static struct platform_device *cardhu_gfx_devices[] __initdata = { }; +#ifdef CONFIG_HAS_EARLYSUSPEND +/* put early_suspend/late_resume handlers here for the display in order + * to keep the code out of the display driver, keeping it closer to upstream + */ +struct early_suspend cardhu_panel_early_suspender; + +static void cardhu_panel_early_suspend(struct early_suspend *h) +{ + if (num_registered_fb > 0) + fb_blank(registered_fb[0], FB_BLANK_POWERDOWN); +} + +static void cardhu_panel_late_resume(struct early_suspend *h) +{ + if (num_registered_fb > 0) + fb_blank(registered_fb[0], FB_BLANK_UNBLANK); +} +#endif + int __init cardhu_panel_init(void) { int err; @@ -1122,6 +1142,14 @@ int __init cardhu_panel_init(void) tegra_gpio_enable(cardhu_hdmi_hpd); gpio_request(cardhu_hdmi_hpd, "hdmi_hpd"); gpio_direction_input(cardhu_hdmi_hpd); + +#ifdef CONFIG_HAS_EARLYSUSPEND + cardhu_panel_early_suspender.suspend = cardhu_panel_early_suspend; + cardhu_panel_early_suspender.resume = cardhu_panel_late_resume; + cardhu_panel_early_suspender.level = EARLY_SUSPEND_LEVEL_DISABLE_FB; + register_early_suspend(&cardhu_panel_early_suspender); +#endif + err = platform_add_devices(cardhu_gfx_devices, ARRAY_SIZE(cardhu_gfx_devices)); |