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Subject[PATCH v2 11/13] drm/mediatek: implement connection from BLS to DPI0
Date
Modify display driver to support connection from BLS to DPI.

Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
index 87e4191c250e..cc8d49e60c7e 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
@@ -39,6 +39,7 @@
#define DISP_REG_CONFIG_DISP_OVL_MOUT_EN 0x030
#define DISP_REG_CONFIG_OUT_SEL 0x04c
#define DISP_REG_CONFIG_DSI_SEL 0x050
+#define DISP_REG_CONFIG_DPI_SEL 0x064

#define DISP_REG_MUTEX_EN(n) (0x20 + 0x20 * (n))
#define DISP_REG_MUTEX(n) (0x24 + 0x20 * (n))
@@ -132,7 +133,11 @@

#define OVL_MOUT_EN_RDMA 0x1
#define BLS_TO_DSI_RDMA1_TO_DPI1 0x8
+#define BLS_TO_DPI_RDMA1_TO_DSI 0x2
#define DSI_SEL_IN_BLS 0x0
+#define DPI_SEL_IN_BLS 0x0
+#define DSI_SEL_IN_RDMA 0x1
+#define DPI_SEL_IN_RDMA 0x1

struct mtk_disp_mutex {
int id;
@@ -323,9 +328,21 @@ static void mtk_ddp_sout_sel(void __iomem *config_regs,
enum mtk_ddp_comp_id cur,
enum mtk_ddp_comp_id next)
{
- if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DSI0)
+ if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DSI0) {
writel_relaxed(BLS_TO_DSI_RDMA1_TO_DPI1,
config_regs + DISP_REG_CONFIG_OUT_SEL);
+ writel_relaxed(DSI_SEL_IN_BLS,
+ config_regs + DISP_REG_CONFIG_DSI_SEL);
+ writel_relaxed(DPI_SEL_IN_RDMA,
+ config_regs + DISP_REG_CONFIG_DPI_SEL);
+ } 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);
+ }
}

void mtk_ddp_add_comp_to_path(void __iomem *config_regs,
--
2.12.5.2.gbdf23ab
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