Re: [PATCH V2 01/10] drm/panel: himax-hx8394: Drop prepare/unprepare tracking

[neil.armstrong@linaro.org]

On 04/12/2023 19:57, Chris Morgan wrote:
> From: Chris Morgan <macromorgan@hotmail.com>
> 
> Drop the panel specific prepare/unprepare logic. This is now tracked
> by the DRM stack [1].
> 
> [1] commit d2aacaf07395 ("drm/panel: Check for already prepared/enabled in
> drm_panel")
> 
> Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
> ---
>   drivers/gpu/drm/panel/panel-himax-hx8394.c | 11 -----------
>   1 file changed, 11 deletions(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-himax-hx8394.c b/drivers/gpu/drm/panel/panel-himax-hx8394.c
> index c73243d85de7..3823ff388b96 100644
> --- a/drivers/gpu/drm/panel/panel-himax-hx8394.c
> +++ b/drivers/gpu/drm/panel/panel-himax-hx8394.c
> @@ -68,7 +68,6 @@ struct hx8394 {
>   	struct gpio_desc *reset_gpio;
>   	struct regulator *vcc;
>   	struct regulator *iovcc;
> -	bool prepared;
>   
>   	const struct hx8394_panel_desc *desc;
>   };
> @@ -262,16 +261,11 @@ static int hx8394_unprepare(struct drm_panel *panel)
>   {
>   	struct hx8394 *ctx = panel_to_hx8394(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;
> -
>   	return 0;
>   }
>   
> @@ -280,9 +274,6 @@ static int hx8394_prepare(struct drm_panel *panel)
>   	struct hx8394 *ctx = panel_to_hx8394(panel);
>   	int ret;
>   
> -	if (ctx->prepared)
> -		return 0;
> -
>   	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
>   
>   	ret = regulator_enable(ctx->vcc);
> @@ -301,8 +292,6 @@ static int hx8394_prepare(struct drm_panel *panel)
>   
>   	msleep(180);
>   
> -	ctx->prepared = true;
> -
>   	return 0;
>   
>   disable_vcc:

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