linux-kernel - Re: [PATCH] soc: mediatek: mutex: add suffix 0 to DDP_COMPONENT

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Date:   Wed, 22 Jun 2022 15:31:51 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     "Jason-JH.Lin" <jason-jh.lin@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Fabien Parent <fparent@...libre.com>
Cc:     CK Hu <ck.hu@...iatek.com>, Rex-BC Chen <rex-bc.chen@...iatek.com>,
        Nancy Lin <nancy.lin@...iatek.com>,
        Singo Chang <singo.chang@...iatek.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org,
        linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH] soc: mediatek: mutex: add suffix 0 to
 DDP_COMPONENT_DITHER for mt8395

Il 22/06/22 15:19, Jason-JH.Lin ha scritto:
> Add suffix 0 to DDP_COMPONENT_DITHER for mt8395.
> 
> Fixes: 141311b856d8 ("soc: mediatek: mutex: add MT8365 support")
> Signed-off-by: Jason-JH.Lin <jason-jh.lin@...iatek.com>


Hello Jason-JH,

you must've missed my commit, sent two days ago, which is doing the same:

https://lore.kernel.org/lkml/20220620102454.131417-1-angelogioacchino.delregno@collabora.com/T/#u

Anyway, I have avoided to rename the definition, as from what I understand
MT8365 has only one dither mod and that's called "DITHER", not "DITHER0"...
...but I've added the suffix to the array assignment, as that's what we have
in the enumeration.

I think that #define MT8365_MUTEX_MOD_DISP_DITHER should be kept as-is.

Also... this commit is not fixing anything, as it was already working before,
so the Fixes tag shouldn't be present.

Regards,
Angelo

> ---
>   drivers/soc/mediatek/mtk-mutex.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/soc/mediatek/mtk-mutex.c b/drivers/soc/mediatek/mtk-mutex.c
> index fa8e0ba38803..3b25fd6b91aa 100644
> --- a/drivers/soc/mediatek/mtk-mutex.c
> +++ b/drivers/soc/mediatek/mtk-mutex.c
> @@ -130,7 +130,7 @@
>   #define MT8365_MUTEX_MOD_DISP_CCORR		13
>   #define MT8365_MUTEX_MOD_DISP_AAL		14
>   #define MT8365_MUTEX_MOD_DISP_GAMMA		15
> -#define MT8365_MUTEX_MOD_DISP_DITHER		16
> +#define MT8365_MUTEX_MOD_DISP_DITHER0		16
>   #define MT8365_MUTEX_MOD_DISP_DSI0		17
>   #define MT8365_MUTEX_MOD_DISP_PWM0		20
>   #define MT8365_MUTEX_MOD_DISP_DPI0		22
> @@ -358,7 +358,7 @@ static const unsigned int mt8365_mutex_mod[DDP_COMPONENT_ID_MAX] = {
>   	[DDP_COMPONENT_AAL0] = MT8365_MUTEX_MOD_DISP_AAL,
>   	[DDP_COMPONENT_CCORR] = MT8365_MUTEX_MOD_DISP_CCORR,
>   	[DDP_COMPONENT_COLOR0] = MT8365_MUTEX_MOD_DISP_COLOR0,
> -	[DDP_COMPONENT_DITHER] = MT8365_MUTEX_MOD_DISP_DITHER,
> +	[DDP_COMPONENT_DITHER0] = MT8365_MUTEX_MOD_DISP_DITHER0,
>   	[DDP_COMPONENT_DPI0] = MT8365_MUTEX_MOD_DISP_DPI0,
>   	[DDP_COMPONENT_DSI0] = MT8365_MUTEX_MOD_DISP_DSI0,
>   	[DDP_COMPONENT_GAMMA] = MT8365_MUTEX_MOD_DISP_GAMMA,