[ARM] tegra: add early_suspend/late resume hooks to stringay panel

Signed-off-by: Erik Gilling <konkers@android.com>
Change-Id: Id8c33f04fa776bdf846b97a01081c145005c9ad5

diff --git a/arch/arm/mach-tegra/board-stingray-panel.c b/arch/arm/mach-tegra/board-stingray-panel.c
index 83f27e40a2633bfabb7bdf99148a2ebedfd64e0c..d00b5cae46583ee418b7fc802a0582d04192a04a 100644 (file)
--- a/arch/arm/mach-tegra/board-stingray-panel.c
+++ b/arch/arm/mach-tegra/board-stingray-panel.c
@@ -22,6 +22,7 @@
 #include <linux/platform_device.h>
 #include <linux/nvhost.h>
 #include <linux/bootmem.h>
+#include <linux/earlysuspend.h>
 #include <asm/mach-types.h>
 #include <mach/irqs.h>
 #include <mach/iomap.h>
@@ -309,6 +310,29 @@ static struct i2c_board_info __initdata stingray_i2c_bus1_led_info[] = {
         },
 };
 
+#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 stingray_panel_early_suspender;
+
+static void stingray_panel_early_suspend(struct early_suspend *h)
+{
+       if (num_registered_fb > 0)
+               fb_blank(registered_fb[0], FB_BLANK_POWERDOWN);
+
+       pr_info("KONK: early_suspend\n");
+}
+
+static void stingray_panel_late_resume(struct early_suspend *h)
+{
+       if (num_registered_fb > 0)
+               fb_blank(registered_fb[0], FB_BLANK_UNBLANK);
+
+       pr_info("KONK: late_resume\n");
+}
+#endif
+
 #define FB_MEM_SIZE    (1920 * 1080 * 4 * 2)
 void __init stingray_fb_alloc(void)
 {
@@ -349,6 +373,13 @@ int __init stingray_panel_init(void)
                regulator_enable(stingray_csi_reg);
        }
 
+#ifdef CONFIG_HAS_EARLYSUSPEND
+       stingray_panel_early_suspender.suspend = stingray_panel_early_suspend;
+       stingray_panel_early_suspender.resume = stingray_panel_late_resume;
+       stingray_panel_early_suspender.level = EARLY_SUSPEND_LEVEL_DISABLE_FB;
+       register_early_suspend(&stingray_panel_early_suspender);
+#endif
+
        return nvhost_device_register(&stingray_disp1_device);
 //     return  nvhost_device_register(&stingray_disp2_device);
 }