diff options
Diffstat (limited to '0001-drm-panel-st7703-Assert-reset-prior-to-powering-down.patch')
| -rw-r--r-- | 0001-drm-panel-st7703-Assert-reset-prior-to-powering-down.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/0001-drm-panel-st7703-Assert-reset-prior-to-powering-down.patch b/0001-drm-panel-st7703-Assert-reset-prior-to-powering-down.patch new file mode 100644 index 000000000..045875f11 --- /dev/null +++ b/0001-drm-panel-st7703-Assert-reset-prior-to-powering-down.patch @@ -0,0 +1,29 @@ +From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 +From: Ondrej Jirman <megous@megous.com> +Date: Fri, 26 Jun 2020 02:55:59 +0200 +Subject: [PATCH] drm/panel: st7703: Assert reset prior to powering down the + regulators + +The reset pin is inverted, so if we don't assert reset, the actual gpio +will be high and may keep driving the IO port of the panel. + +Signed-off-by: Ondrej Jirman <megous@megous.com> +--- + drivers/gpu/drm/panel/panel-sitronix-st7703.c | 1 + + 1 file changed, 1 insertion(+) + +diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7703.c b/drivers/gpu/drm/panel/panel-sitronix-st7703.c +index e771281eb547..92930e127559 100644 +--- a/drivers/gpu/drm/panel/panel-sitronix-st7703.c ++++ b/drivers/gpu/drm/panel/panel-sitronix-st7703.c +@@ -416,6 +416,7 @@ static int st7703_unprepare(struct drm_panel *panel) + if (!ctx->prepared) + return 0; + ++ gpiod_set_value_cansleep(ctx->reset_gpio, 1); + regulator_disable(ctx->iovcc); + regulator_disable(ctx->vcc); + ctx->prepared = false; +-- +2.26.2 + |