* [PATCH] drm: mediatek: mtk_disp_gamma: Fix breakage due to merge issue
@ 2023-10-25 10:49 AngeloGioacchino Del Regno
2023-11-23 9:56 ` AngeloGioacchino Del Regno
0 siblings, 1 reply; 2+ messages in thread
From: AngeloGioacchino Del Regno @ 2023-10-25 10:49 UTC (permalink / raw)
To: chunkuang.hu
Cc: p.zabel, airlied, daniel, matthias.bgg,
angelogioacchino.delregno, ck.hu, nfraprado, dri-devel,
linux-mediatek, linux-kernel, linux-arm-kernel, kernel
While the commit that was sent to the mailing lists was fine, something
happened during merge and the mtk_gamma_set() function got broken as
a writel() was turned into a readl().
Fix that by changing that back to the expected writel().
Fixes: a6b39cd248f3 ("drm/mediatek: De-commonize disp_aal/disp_gamma gamma_set functions")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
drivers/gpu/drm/mediatek/mtk_disp_gamma.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
index 2fada9d6c95f..52c752bc5f41 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
@@ -203,7 +203,7 @@ void mtk_gamma_set(struct device *dev, struct drm_crtc_state *state)
/* Disable RELAY mode to pass the processed image */
cfg_val &= ~GAMMA_RELAY_MODE;
- cfg_val = readl(gamma->regs + DISP_GAMMA_CFG);
+ writel(cfg_val, gamma->regs + DISP_GAMMA_CFG);
}
void mtk_gamma_config(struct device *dev, unsigned int w,
--
2.42.0
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] drm: mediatek: mtk_disp_gamma: Fix breakage due to merge issue
2023-10-25 10:49 [PATCH] drm: mediatek: mtk_disp_gamma: Fix breakage due to merge issue AngeloGioacchino Del Regno
@ 2023-11-23 9:56 ` AngeloGioacchino Del Regno
0 siblings, 0 replies; 2+ messages in thread
From: AngeloGioacchino Del Regno @ 2023-11-23 9:56 UTC (permalink / raw)
To: chunkuang.hu
Cc: p.zabel, airlied, daniel, matthias.bgg, ck.hu, nfraprado,
dri-devel, linux-mediatek, linux-kernel, linux-arm-kernel,
kernel
Il 25/10/23 12:49, AngeloGioacchino Del Regno ha scritto:
> While the commit that was sent to the mailing lists was fine, something
> happened during merge and the mtk_gamma_set() function got broken as
> a writel() was turned into a readl().
>
> Fix that by changing that back to the expected writel().
>
> Fixes: a6b39cd248f3 ("drm/mediatek: De-commonize disp_aal/disp_gamma gamma_set functions")
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
This was a urgent patch one month ago, and it got ignored.
Friendly ping.
Regards,
Angelo
> ---
> drivers/gpu/drm/mediatek/mtk_disp_gamma.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
> index 2fada9d6c95f..52c752bc5f41 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
> @@ -203,7 +203,7 @@ void mtk_gamma_set(struct device *dev, struct drm_crtc_state *state)
> /* Disable RELAY mode to pass the processed image */
> cfg_val &= ~GAMMA_RELAY_MODE;
>
> - cfg_val = readl(gamma->regs + DISP_GAMMA_CFG);
> + writel(cfg_val, gamma->regs + DISP_GAMMA_CFG);
> }
>
> void mtk_gamma_config(struct device *dev, unsigned int w,
^ permalink raw reply [flat|nested] 2+ messages in thread
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2023-10-25 10:49 [PATCH] drm: mediatek: mtk_disp_gamma: Fix breakage due to merge issue AngeloGioacchino Del Regno
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