diff mbox series

[6/8] drm/panel: himax-hx83102: If prepare fails, disable GPIO before regulators

Message ID 20240517143643.6.Id0659a80147cf51e0ebb8fe7fee18db86851960d@changeid (mailing list archive)
State New, archived
Headers show
Series drm/panel: Some very minor err handling fixes + more _multi | expand

Commit Message

Douglas Anderson May 17, 2024, 9:36 p.m. UTC
The enable GPIO should clearly be set low before turning off
regulators. That matches both the inverse order that things were
enabled and also the order in unprepare().

Fixes: 0ef94554dc40 ("drm/panel: himax-hx83102: Break out as separate driver")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
---

 drivers/gpu/drm/panel/panel-himax-hx83102.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Dmitry Baryshkov May 19, 2024, 10:27 p.m. UTC | #1
On Fri, May 17, 2024 at 02:36:41PM -0700, Douglas Anderson wrote:
> The enable GPIO should clearly be set low before turning off
> regulators. That matches both the inverse order that things were
> enabled and also the order in unprepare().
> 
> Fixes: 0ef94554dc40 ("drm/panel: himax-hx83102: Break out as separate driver")
> Signed-off-by: Douglas Anderson <dianders@chromium.org>
> ---
> 
>  drivers/gpu/drm/panel/panel-himax-hx83102.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/panel/panel-himax-hx83102.c b/drivers/gpu/drm/panel/panel-himax-hx83102.c
index 1a6975937f30..4ac7f9d8b232 100644
--- a/drivers/gpu/drm/panel/panel-himax-hx83102.c
+++ b/drivers/gpu/drm/panel/panel-himax-hx83102.c
@@ -578,13 +578,13 @@  static int hx83102_prepare(struct drm_panel *panel)
 	return 0;
 
 poweroff:
+	gpiod_set_value(ctx->enable_gpio, 0);
 	regulator_disable(ctx->avee);
 poweroffavdd:
 	regulator_disable(ctx->avdd);
 poweroff1v8:
 	usleep_range(5000, 7000);
 	regulator_disable(ctx->pp1800);
-	gpiod_set_value(ctx->enable_gpio, 0);
 
 	return ret;
 }