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-rw-r--r--SOURCES/0001-drm-panel-st7703-Enter-sleep-after-display-off.patch41
1 files changed, 41 insertions, 0 deletions
diff --git a/SOURCES/0001-drm-panel-st7703-Enter-sleep-after-display-off.patch b/SOURCES/0001-drm-panel-st7703-Enter-sleep-after-display-off.patch
new file mode 100644
index 0000000..33e52fc
--- /dev/null
+++ b/SOURCES/0001-drm-panel-st7703-Enter-sleep-after-display-off.patch
@@ -0,0 +1,41 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Ondrej Jirman <megous@megous.com>
+Date: Fri, 26 Jun 2020 02:55:58 +0200
+Subject: [PATCH] drm/panel: st7703: Enter sleep after display off
+
+The datasheet suggests to issue sleep in after display off
+as a part of the panel's shutdown sequence.
+
+Signed-off-by: Ondrej Jirman <megous@megous.com>
+---
+ drivers/gpu/drm/panel/panel-sitronix-st7703.c | 13 ++++++++++++-
+ 1 file changed, 12 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7703.c b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
+index 33611419059a..e771281eb547 100644
+--- a/drivers/gpu/drm/panel/panel-sitronix-st7703.c
++++ b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
+@@ -394,8 +394,19 @@ static int st7703_disable(struct drm_panel *panel)
+ {
+ struct st7703 *ctx = panel_to_st7703(panel);
+ struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
++ int ret;
++
++ ret = mipi_dsi_dcs_set_display_off(dsi);
++ if (ret < 0)
++ DRM_DEV_ERROR(ctx->dev,
++ "Failed to turn off the display: %d\n", ret);
+
+- return mipi_dsi_dcs_set_display_off(dsi);
++ ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
++ if (ret < 0)
++ DRM_DEV_ERROR(ctx->dev,
++ "Failed to enter sleep mode: %d\n", ret);
++
++ return 0;
+ }
+
+ static int st7703_unprepare(struct drm_panel *panel)
+--
+2.26.2
+