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Subject[RESEND PATCH v1 03/18] drm/mediatek: redefine mtk_ddp_sout_sel
Date
From: Yongqiang Niu <yongqiang.niu@mediatek.com>

This patch redefine mtk_ddp_sout_sel

Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 32 ++++++++++++++++++++------------
1 file changed, 20 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
index adb37e4..592f852 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
@@ -405,21 +405,27 @@ static unsigned int mtk_ddp_sel_in(enum mtk_ddp_comp_id cur,
return value;
}

-static void mtk_ddp_sout_sel(void __iomem *config_regs,
- enum mtk_ddp_comp_id cur,
- enum mtk_ddp_comp_id next)
+static unsigned int mtk_ddp_sout_sel(void __iomem *config_regs,
+ enum mtk_ddp_comp_id cur,
+ enum mtk_ddp_comp_id next,
+ unsigned int *addr)
{
+ unsigned int value;
+
if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DSI0) {
- writel_relaxed(BLS_TO_DSI_RDMA1_TO_DPI1,
- config_regs + DISP_REG_CONFIG_OUT_SEL);
+ *addr = DISP_REG_CONFIG_OUT_SEL;
+ value = BLS_TO_DSI_RDMA1_TO_DPI1;
} else if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DPI0) {
- writel_relaxed(BLS_TO_DPI_RDMA1_TO_DSI,
- config_regs + DISP_REG_CONFIG_OUT_SEL);
- writel_relaxed(DSI_SEL_IN_RDMA,
- config_regs + DISP_REG_CONFIG_DSI_SEL);
- writel_relaxed(DPI_SEL_IN_BLS,
- config_regs + DISP_REG_CONFIG_DPI_SEL);
+ *addr = DISP_REG_CONFIG_OUT_SEL;
+ value = BLS_TO_DPI_RDMA1_TO_DSI;
+ } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI0) {
+ *addr = DISP_REG_CONFIG_DSI_SEL;
+ value = DSI_SEL_IN_RDMA;
+ } else {
+ value = 0;
}
+
+ return value;
}

void mtk_ddp_add_comp_to_path(void __iomem *config_regs,
@@ -434,7 +440,9 @@ void mtk_ddp_add_comp_to_path(void __iomem *config_regs,
writel_relaxed(reg, config_regs + addr);
}

- mtk_ddp_sout_sel(config_regs, cur, next);
+ value = mtk_ddp_sout_sel(cur, next, &addr);
+ if (value)
+ writel_relaxed(value, config_regs + addr);

value = mtk_ddp_sel_in(cur, next, &addr);
if (value) {
--
1.8.1.1.dirty
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