linux-kernel - Re: [PATCH v2 1/3] drm/panel: nt36672a: add backlight support

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Message-ID: <20220406161839.srtt7c5eywp56i43@SoMainline.org>
Date:   Wed, 6 Apr 2022 18:18:39 +0200
From:   Marijn Suijten <marijn.suijten@...ainline.org>
To:     Joel Selvaraj <jo@...amily.in>
Cc:     Sumit Semwal <sumit.semwal@...aro.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Sam Ravnborg <sam@...nborg.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        Amit Pundir <amit.pundir@...aro.org>
Subject: Re: [PATCH v2 1/3] drm/panel: nt36672a: add backlight support

On 2022-04-01 05:48:08, Joel Selvaraj wrote:
> Add support for backlight. This panel supports backlight control
> through the QCOM WLED driver in Xiaomi Poco F1 device.
> 
> Signed-off-by: Joel Selvaraj <jo@...amily.in>

Reviewed-by: Marijn Suijten <marijn.suijten@...ainline.org>

> ---
>  drivers/gpu/drm/panel/panel-novatek-nt36672a.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/gpu/drm/panel/panel-novatek-nt36672a.c b/drivers/gpu/drm/panel/panel-novatek-nt36672a.c
> index 231f371901e8..6d6ce42787e2 100644
> --- a/drivers/gpu/drm/panel/panel-novatek-nt36672a.c
> +++ b/drivers/gpu/drm/panel/panel-novatek-nt36672a.c
> @@ -628,6 +628,10 @@ static int nt36672a_panel_add(struct nt36672a_panel *pinfo)
>  
>  	drm_panel_init(&pinfo->base, dev, &panel_funcs, DRM_MODE_CONNECTOR_DSI);
>  
> +	ret = drm_panel_of_backlight(&pinfo->base);
> +	if (ret)
> +		return dev_err_probe(dev, ret, "Failed to get backlight\n");
> +
>  	drm_panel_add(&pinfo->base);
>  
>  	return 0;
> -- 
> 2.35.1
>