[PATCH 3/6] drm/panel: novatek-nt36672e: stop setting register load before disable

Dmitry Baryshkov posted 6 patches 1 year, 10 months ago
[PATCH 3/6] drm/panel: novatek-nt36672e: stop setting register load before disable
Posted by Dmitry Baryshkov 1 year, 10 months ago
It is pointless to set register load before disabling the register. This
vote is going to be dropped as soon as the register is disabled. Drop
these register_set_load calls.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/gpu/drm/panel/panel-novatek-nt36672e.c | 17 -----------------
 1 file changed, 17 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-novatek-nt36672e.c b/drivers/gpu/drm/panel/panel-novatek-nt36672e.c
index c39fe0fc5d69..9a870b9b6765 100644
--- a/drivers/gpu/drm/panel/panel-novatek-nt36672e.c
+++ b/drivers/gpu/drm/panel/panel-novatek-nt36672e.c
@@ -25,12 +25,6 @@ static const unsigned long regulator_enable_loads[] = {
 	100000,
 };
 
-static const unsigned long regulator_disable_loads[] = {
-	80,
-	100,
-	100,
-};
-
 struct panel_desc {
 	const struct drm_display_mode *display_mode;
 	u32 width_mm;
@@ -385,20 +379,9 @@ static int nt36672e_power_off(struct nt36672e_panel *ctx)
 {
 	struct mipi_dsi_device *dsi = ctx->dsi;
 	int ret = 0;
-	int i;
 
 	gpiod_set_value(ctx->reset_gpio, 0);
 
-	for (i = 0; i < ARRAY_SIZE(ctx->supplies); i++) {
-		ret = regulator_set_load(ctx->supplies[i].consumer,
-				regulator_disable_loads[i]);
-		if (ret) {
-			dev_err(&dsi->dev, "regulator set load failed for supply %s: %d\n",
-				ctx->supplies[i].supply, ret);
-			return ret;
-		}
-	}
-
 	ret = regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
 	if (ret)
 		dev_err(&dsi->dev, "regulator bulk disable failed: %d\n", ret);

-- 
2.39.2
Re: [PATCH 3/6] drm/panel: novatek-nt36672e: stop setting register load before disable
Posted by Neil Armstrong 1 year, 9 months ago
On 04/04/2024 12:08, Dmitry Baryshkov wrote:
> It is pointless to set register load before disabling the register. This
> vote is going to be dropped as soon as the register is disabled. Drop
> these register_set_load calls.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> ---
>   drivers/gpu/drm/panel/panel-novatek-nt36672e.c | 17 -----------------
>   1 file changed, 17 deletions(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-novatek-nt36672e.c b/drivers/gpu/drm/panel/panel-novatek-nt36672e.c
> index c39fe0fc5d69..9a870b9b6765 100644
> --- a/drivers/gpu/drm/panel/panel-novatek-nt36672e.c
> +++ b/drivers/gpu/drm/panel/panel-novatek-nt36672e.c
> @@ -25,12 +25,6 @@ static const unsigned long regulator_enable_loads[] = {
>   	100000,
>   };
>   
> -static const unsigned long regulator_disable_loads[] = {
> -	80,
> -	100,
> -	100,
> -};
> -
>   struct panel_desc {
>   	const struct drm_display_mode *display_mode;
>   	u32 width_mm;
> @@ -385,20 +379,9 @@ static int nt36672e_power_off(struct nt36672e_panel *ctx)
>   {
>   	struct mipi_dsi_device *dsi = ctx->dsi;
>   	int ret = 0;
> -	int i;
>   
>   	gpiod_set_value(ctx->reset_gpio, 0);
>   
> -	for (i = 0; i < ARRAY_SIZE(ctx->supplies); i++) {
> -		ret = regulator_set_load(ctx->supplies[i].consumer,
> -				regulator_disable_loads[i]);
> -		if (ret) {
> -			dev_err(&dsi->dev, "regulator set load failed for supply %s: %d\n",
> -				ctx->supplies[i].supply, ret);
> -			return ret;
> -		}
> -	}
> -
>   	ret = regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
>   	if (ret)
>   		dev_err(&dsi->dev, "regulator bulk disable failed: %d\n", ret);
> 

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>