linux-kernel - Re: [PATCH v4 1/9] drm/mediatek: dsi: Use GENMASK() for register mask definitions

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Date: Wed, 7 Feb 2024 10:55:07 +0100
From: Alexandre Mergnat <amergnat@...libre.com>
To: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
 chunkuang.hu@...nel.org
Cc: fshao@...omium.org, p.zabel@...gutronix.de, airlied@...il.com,
 daniel@...ll.ch, matthias.bgg@...il.com, dri-devel@...ts.freedesktop.org,
 linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, kernel@...labora.com
Subject: Re: [PATCH v4 1/9] drm/mediatek: dsi: Use GENMASK() for register mask
 definitions



On 06/02/2024 16:53, AngeloGioacchino Del Regno wrote:
>>>   #define DSI_PSCTRL        0x1c
>>> -#define DSI_PS_WC            0x3fff
>>> -#define DSI_PS_SEL            (3 << 16)
>>> +#define DSI_PS_WC            GENMASK(14, 0)
>>> +#define DSI_PS_SEL            GENMASK(19, 16)
>>
>> 0011 0000 0000 0000 0000 => GENMASK(17, 16)
> 
> Alexandre, the reason for that is in the commit description :-P
> 
> "While at it, also fix the DSI_PS_SEL mask to include all bits instead
> of just a subset of them."

Oh sorry...

Reviewed-by: Alexandre Mergnat <amergnat@...libre.com>

-- 
Regards,
Alexandre