linux-kernel - Re: [PATCH v2] drm/mediatek: Fix color format MACROs in OVL

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Message-ID: <8d35081d-74cd-4d4c-ae31-b3b4e8ce65de@gmail.com>
Date: Wed, 16 Oct 2024 14:26:51 +0200
From: Matthias Brugger <matthias.bgg@...il.com>
To: Hsin-Te Yuan <yuanhsinte@...omium.org>,
 Chun-Kuang Hu <chunkuang.hu@...nel.org>,
 Philipp Zabel <p.zabel@...gutronix.de>, David Airlie <airlied@...il.com>,
 Simona Vetter <simona@...ll.ch>,
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: dri-devel@...ts.freedesktop.org, linux-mediatek@...ts.infradead.org,
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 dianders@...omium.org
Subject: Re: [PATCH v2] drm/mediatek: Fix color format MACROs in OVL



On 10/16/24 13:08, Hsin-Te Yuan wrote:
> In commit 9f428b95ac89 ("drm/mediatek: Add new color format MACROs in
> OVL"), some new color formats are defined in the MACROs to make the
> switch statement more concise. That commit was intended to be a no-op
> cleanup. However, there are typos in these formats MACROs, which cause
> the return value to be incorrect. Fix the typos to ensure the return
> value remains unchanged.
> 
> Fixes: 9f428b95ac89 ("drm/mediatek: Add new color format MACROs in OVL")
> Signed-off-by: Hsin-Te Yuan <yuanhsinte@...omium.org>

Reviewed-by: Matthias Brugger <matthias.bgg@...il.com>

> ---
> Changes in v2:
> - Clarify that the commit get fixed was intended to be a no-op cleanup
> - Fix the typo in tag
> - Link to v1: https://lore.kernel.org/r/20241015-color-v1-1-35b01fa0a826@chromium.org
> ---
>   drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> index 89b439dcf3a6af9f5799487fdc0f128a9b5cbe4a..1632ac5c23d87e1cdc41013a9cf7864728dcb63b 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> @@ -65,8 +65,8 @@
>   #define OVL_CON_CLRFMT_RGB	(1 << 12)
>   #define OVL_CON_CLRFMT_ARGB8888	(2 << 12)
>   #define OVL_CON_CLRFMT_RGBA8888	(3 << 12)
> -#define OVL_CON_CLRFMT_ABGR8888	(OVL_CON_CLRFMT_RGBA8888 | OVL_CON_BYTE_SWAP)
> -#define OVL_CON_CLRFMT_BGRA8888	(OVL_CON_CLRFMT_ARGB8888 | OVL_CON_BYTE_SWAP)
> +#define OVL_CON_CLRFMT_ABGR8888	(OVL_CON_CLRFMT_ARGB8888 | OVL_CON_BYTE_SWAP)
> +#define OVL_CON_CLRFMT_BGRA8888	(OVL_CON_CLRFMT_RGBA8888 | OVL_CON_BYTE_SWAP)
>   #define OVL_CON_CLRFMT_UYVY	(4 << 12)
>   #define OVL_CON_CLRFMT_YUYV	(5 << 12)
>   #define OVL_CON_MTX_YUV_TO_RGB	(6 << 16)
> 
> ---
> base-commit: 75b607fab38d149f232f01eae5e6392b394dd659
> change-id: 20241015-color-e205e75b64aa
> 
> Best regards,