linux-kernel - Re: [PATCH 5/6] drm/panel: novatek-nt36672a: stop calling regulator_set

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Date: Wed, 24 Apr 2024 08:53:17 +0200
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
 Jessica Zhang <quic_jesszhan@...cinc.com>, Sam Ravnborg <sam@...nborg.org>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
 Matthias Kaehlcke <mka@...omium.org>,
 Harigovindan P <harigovi@...eaurora.org>,
 Ritesh Kumar <quic_riteshk@...cinc.com>,
 Sumit Semwal <sumit.semwal@...aro.org>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 5/6] drm/panel: novatek-nt36672a: stop calling
 regulator_set_load manually

On 04/04/2024 12:08, Dmitry Baryshkov wrote:
> Use .init_load_uA part of the bulk regulator API instead of calling
> register_set_load() manually.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> ---
>   drivers/gpu/drm/panel/panel-novatek-nt36672a.c | 11 +++--------
>   1 file changed, 3 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-novatek-nt36672a.c b/drivers/gpu/drm/panel/panel-novatek-nt36672a.c
> index 33fb3d715e54..3886372415c2 100644
> --- a/drivers/gpu/drm/panel/panel-novatek-nt36672a.c
> +++ b/drivers/gpu/drm/panel/panel-novatek-nt36672a.c
> @@ -605,21 +605,16 @@ static int nt36672a_panel_add(struct nt36672a_panel *pinfo)
>   	struct device *dev = &pinfo->link->dev;
>   	int i, ret;
>   
> -	for (i = 0; i < ARRAY_SIZE(pinfo->supplies); i++)
> +	for (i = 0; i < ARRAY_SIZE(pinfo->supplies); i++) {
>   		pinfo->supplies[i].supply = nt36672a_regulator_names[i];
> +		pinfo->supplies[i].init_load_uA = nt36672a_regulator_enable_loads[i];
> +	}
>   
>   	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(pinfo->supplies),
>   				      pinfo->supplies);
>   	if (ret < 0)
>   		return dev_err_probe(dev, ret, "failed to get regulators\n");
>   
> -	for (i = 0; i < ARRAY_SIZE(pinfo->supplies); i++) {
> -		ret = regulator_set_load(pinfo->supplies[i].consumer,
> -					 nt36672a_regulator_enable_loads[i]);
> -		if (ret)
> -			return dev_err_probe(dev, ret, "failed to set regulator enable loads\n");
> -	}
> -
>   	pinfo->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
>   	if (IS_ERR(pinfo->reset_gpio))
>   		return dev_err_probe(dev, PTR_ERR(pinfo->reset_gpio),
> 

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