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[2/3] drm/panel: simple - Disable panel on shutdown

Message ID 1398785339-8107-2-git-send-email-thierry.reding@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Thierry Reding April 29, 2014, 3:28 p.m. UTC 
From: Thierry Reding <treding@nvidia.com>

When a device is shut down, disable the panel to make sure the display
backlight doesn't stay lit.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 drivers/gpu/drm/panel/panel-simple.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
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Patch

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 309f29e9234a..a790f4c337cf 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -262,6 +262,13 @@  static int panel_simple_remove(struct device *dev)
 	return 0;
 }
 
+static void panel_simple_shutdown(struct device *dev)
+{
+	struct panel_simple *panel = dev_get_drvdata(dev);
+
+	panel_simple_disable(&panel->base);
+}
+
 static const struct drm_display_mode auo_b101aw03_mode = {
 	.clock = 51450,
 	.hdisplay = 1024,
@@ -412,6 +419,11 @@  static int panel_simple_platform_remove(struct platform_device *pdev)
 	return panel_simple_remove(&pdev->dev);
 }
 
+static void panel_simple_platform_shutdown(struct platform_device *pdev)
+{
+	panel_simple_shutdown(&pdev->dev);
+}
+
 static struct platform_driver panel_simple_platform_driver = {
 	.driver = {
 		.name = "panel-simple",
@@ -420,6 +432,7 @@  static struct platform_driver panel_simple_platform_driver = {
 	},
 	.probe = panel_simple_platform_probe,
 	.remove = panel_simple_platform_remove,
+	.shutdown = panel_simple_platform_shutdown,
 };
 
 struct panel_desc_dsi {
@@ -561,6 +574,11 @@  static int panel_simple_dsi_remove(struct mipi_dsi_device *dsi)
 	return panel_simple_remove(&dsi->dev);
 }
 
+static void panel_simple_dsi_shutdown(struct mipi_dsi_device *dsi)
+{
+	panel_simple_shutdown(&dsi->dev);
+}
+
 static struct mipi_dsi_driver panel_simple_dsi_driver = {
 	.driver = {
 		.name = "panel-simple-dsi",
@@ -569,6 +587,7 @@  static struct mipi_dsi_driver panel_simple_dsi_driver = {
 	},
 	.probe = panel_simple_dsi_probe,
 	.remove = panel_simple_dsi_remove,
+	.shutdown = panel_simple_dsi_shutdown,
 };
 
 static int __init panel_simple_init(void)