[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20230801115854.150346-11-angelogioacchino.delregno@collabora.com>
Date: Tue, 1 Aug 2023 13:58:51 +0200
From: AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>
To: chunkuang.hu@...nel.org
Cc: p.zabel@...gutronix.de, airlied@...il.com, daniel@...ll.ch,
matthias.bgg@...il.com, angelogioacchino.delregno@...labora.com,
dri-devel@...ts.freedesktop.org,
linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, wenst@...omium.org,
kernel@...labora.com, ehristev@...labora.com,
"Jason-JH . Lin" <jason-jh.lin@...iatek.com>,
Alexandre Mergnat <amergnat@...libre.com>
Subject: [PATCH v8 10/13] drm/mediatek: gamma: Make sure relay mode is disabled
Disable relay mode at the end of LUT programming to make sure that the
processed image goes through.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Reviewed-by: Jason-JH.Lin <jason-jh.lin@...iatek.com>
Reviewed-by: Alexandre Mergnat <amergnat@...libre.com>
---
drivers/gpu/drm/mediatek/mtk_disp_gamma.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
index 12614cc26bf8..6591797ed10c 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
@@ -19,6 +19,7 @@
#define DISP_GAMMA_EN 0x0000
#define GAMMA_EN BIT(0)
#define DISP_GAMMA_CFG 0x0020
+#define GAMMA_RELAY_MODE BIT(0)
#define GAMMA_LUT_EN BIT(1)
#define GAMMA_DITHERING BIT(2)
#define DISP_GAMMA_SIZE 0x0030
@@ -192,6 +193,9 @@ void mtk_gamma_set_common(struct device *dev, void __iomem *regs,
/* Enable the gamma table */
cfg_val |= FIELD_PREP(GAMMA_LUT_EN, 1);
+ /* Disable RELAY mode to pass the processed image */
+ cfg_val &= ~GAMMA_RELAY_MODE;
+
writel(cfg_val, regs + DISP_GAMMA_CFG);
}
--
2.41.0
Powered by blists - more mailing lists