RK3399 and RK3288 shared the same eDP IP controller, only some light
difference with VOP configure and GRF configure.

Signed-off-by: Yakir Yang <ykk at rock-chips.com>
Acked-by: Mark Yao <mark.yao at rock-chips.com>
Reviewed-by: Tomasz Figa <tomasz.figa at chromium.com>
---
Changes in v4:
- Improved the overly complicated .atomic_check function. (Sean)
- Add reviewed flag from Tomasz

Changes in v3:
- Give the "rk3399-edp" a separate line for clarity in document (Tomasz, 
reviewed at Google Gerrit)
    
[https://chromium-review.googlesource.com/#/c/346314/10/Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt
 at 5]
- Move 'output_type' setting before the return statement (Tomasz, reviewed at 
Google Gerrit)
    
[https://chromium-review.googlesource.com/#/c/346314/10/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
 at 154]
- Add the acked flag from Mark.

 .../bindings/display/bridge/analogix_dp.txt        |  1 +
 .../display/rockchip/analogix_dp-rockchip.txt      |  3 ++-
 drivers/gpu/drm/rockchip/analogix_dp-rockchip.c    | 23 ++++++++++++++++++++++
 include/drm/bridge/analogix_dp.h                   |  3 ++-
 4 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt 
b/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt
index 4f2ba8c..4a0f4f7 100644
--- a/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt
+++ b/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt
@@ -5,6 +5,7 @@ Required properties for dp-controller:
                platform specific such as:
                 * "samsung,exynos5-dp"
                 * "rockchip,rk3288-dp"
+                * "rockchip,rk3399-edp"
        -reg:
                physical base address of the controller and length
                of memory mapped region.
diff --git 
a/Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt 
b/Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt
index e832ff9..726c945 100644
--- 
a/Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt
+++ 
b/Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt
@@ -2,7 +2,8 @@ Rockchip RK3288 specific extensions to the Analogix Display Port
 ================================

 Required properties:
-- compatible: "rockchip,rk3288-edp";
+- compatible: "rockchip,rk3288-edp",
+             "rockchip,rk3399-edp";

 - reg: physical base address of the controller and length

diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c 
b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
index 0a30931..8557a08 100644
--- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
+++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
@@ -36,6 +36,8 @@

 #define RK3288_GRF_SOC_CON6            0x25c
 #define RK3288_EDP_LCDC_SEL            BIT(5)
+#define RK3399_GRF_SOC_CON20           0x6250
+#define RK3399_EDP_LCDC_SEL            BIT(5)

 #define HIWORD_UPDATE(val, mask)       (val | (mask) << 16)

@@ -159,6 +161,8 @@ rockchip_dp_drm_encoder_atomic_check(struct drm_encoder 
*encoder,
                                      struct drm_connector_state *conn_state)
 {
        struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc_state);
+       struct rockchip_dp_device *dp = to_dp(encoder);
+       int ret;

        /*
         * FIXME(Yakir): driver should configure the CRTC output video
@@ -173,8 +177,19 @@ rockchip_dp_drm_encoder_atomic_check(struct drm_encoder 
*encoder,
         * But if I configure CTRC to RGBaaa, and eDP driver still keep
         * RGB666 input video mode, then screen would works prefect.
         */
+
        s->output_mode = ROCKCHIP_OUT_MODE_AAAA;
        s->output_type = DRM_MODE_CONNECTOR_eDP;
+       if (dp->data->chip_type == RK3399_EDP) {
+               /*
+                * For RK3399, VOP Lit must code the out mode to RGB888,
+                * VOP Big must code the out mode to RGB10.
+                */
+               ret = drm_of_encoder_active_endpoint_id(dp->dev->of_node,
+                                                       encoder);
+               if (ret > 0)
+                       s->output_mode = ROCKCHIP_OUT_MODE_P888;
+       }

        return 0;
 }
@@ -378,6 +393,13 @@ static const struct dev_pm_ops rockchip_dp_pm_ops = {
 #endif
 };

+static const struct rockchip_dp_chip_data rk3399_edp = {
+       .lcdsel_grf_reg = RK3399_GRF_SOC_CON20,
+       .lcdsel_big = HIWORD_UPDATE(0, RK3399_EDP_LCDC_SEL),
+       .lcdsel_lit = HIWORD_UPDATE(RK3399_EDP_LCDC_SEL, RK3399_EDP_LCDC_SEL),
+       .chip_type = RK3399_EDP,
+};
+
 static const struct rockchip_dp_chip_data rk3288_dp = {
        .lcdsel_grf_reg = RK3288_GRF_SOC_CON6,
        .lcdsel_big = HIWORD_UPDATE(0, RK3288_EDP_LCDC_SEL),
@@ -387,6 +409,7 @@ static const struct rockchip_dp_chip_data rk3288_dp = {

 static const struct of_device_id rockchip_dp_dt_ids[] = {
        {.compatible = "rockchip,rk3288-dp", .data = &rk3288_dp },
+       {.compatible = "rockchip,rk3399-edp", .data = &rk3399_edp },
        {}
 };
 MODULE_DEVICE_TABLE(of, rockchip_dp_dt_ids);
diff --git a/include/drm/bridge/analogix_dp.h b/include/drm/bridge/analogix_dp.h
index 790ab5d..fc4aea3 100644
--- a/include/drm/bridge/analogix_dp.h
+++ b/include/drm/bridge/analogix_dp.h
@@ -16,11 +16,12 @@
 enum analogix_dp_devtype {
        EXYNOS_DP,
        RK3288_DP,
+       RK3399_EDP,
 };

 static inline bool is_rockchip(enum analogix_dp_devtype type)
 {
-       return type == RK3288_DP;
+       return type == RK3288_DP || type == RK3399_EDP;
 }

 struct analogix_dp_plat_data {
-- 
1.9.1


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