linux-kernel - [PATCH v4, 31/33] drm/mediatek: add connection from DITHER0 to DSI0

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Message-ID: <1562625253-29254-32-git-send-email-yongqiang.niu@mediatek.com>
Date:   Tue, 9 Jul 2019 06:34:11 +0800
From:   <yongqiang.niu@...iatek.com>
To:     CK Hu <ck.hu@...iatek.com>, Philipp Zabel <p.zabel@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>
CC:     David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
        Mark Rutland <mark.rutland@....com>,
        <dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        Yongqiang Niu <yongqiang.niu@...iatek.com>
Subject: [PATCH v4, 31/33] drm/mediatek: add connection from DITHER0 to DSI0

From: Yongqiang Niu <yongqiang.niu@...iatek.com>

This patch add connection from DITHER0 to DSI0

Signed-off-by: Yongqiang Niu <yongqiang.niu@...iatek.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
index 4d75cef..c4c8531 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
@@ -43,10 +43,12 @@
 
 #define MT8183_DISP_OVL0_2L_MOUT_EN		0xf04
 #define MT8183_DISP_OVL1_2L_MOUT_EN		0xf08
+#define MT8183_DISP_DITHER0_MOUT_EN		0xf0c
 #define MT8183_DISP_PATH0_SEL_IN		0xf24
 
 #define OVL0_2L_MOUT_EN_DISP_PATH0			BIT(0)
 #define OVL1_2L_MOUT_EN_RDMA1				BIT(4)
+#define DITHER0_MOUT_IN_DSI0				BIT(0)
 #define DISP_PATH0_SEL_IN_OVL0_2L			0x1
 
 #define MT2701_DISP_MUTEX0_MOD0			0x2c
@@ -331,6 +333,9 @@ static unsigned int mtk_ddp_mout_en(const struct mtk_mmsys_reg_data *data,
 		   next == DDP_COMPONENT_RDMA1) {
 		*addr = MT8183_DISP_OVL1_2L_MOUT_EN;
 		value = OVL1_2L_MOUT_EN_RDMA1;
+	} else if (cur == DDP_COMPONENT_DITHER && next == DDP_COMPONENT_DSI0) {
+		*addr = MT8183_DISP_DITHER0_MOUT_EN;
+		value = DITHER0_MOUT_IN_DSI0;
 	} else {
 		value = 0;
 	}
-- 
1.8.1.1.dirty