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>
---
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.

Changes in v2:
- rebase with drm-next, fix some conflicts

 .../bindings/display/bridge/analogix_dp.txt        |  1 +
 .../display/rockchip/analogix_dp-rockchip.txt      |  3 +-
 drivers/gpu/drm/rockchip/analogix_dp-rockchip.c    | 33 +++++++++++++++++++++-
 include/drm/bridge/analogix_dp.h                   |  1 +
 4 files changed, 36 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 315ebba..bcd9ecc 100644
--- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
+++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
@@ -153,6 +153,8 @@ 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
@@ -167,7 +169,28 @@ 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;
+
+       ret = drm_of_encoder_active_endpoint_id(dp->dev->of_node, encoder);
+       if (ret < 0)
+               return 0;
+
+       switch (dp->data->chip_type) {
+       case RK3399_EDP:
+               /*
+                * For RK3399, VOP Lit must code the out mode to RGB888,
+                * VOP Big must code the out mode to RGB10.
+                */
+               if (ret)
+                       s->output_mode = ROCKCHIP_OUT_MODE_P888;
+               else
+                       s->output_mode = ROCKCHIP_OUT_MODE_AAAA;
+               break;
+
+       default:
+               s->output_mode = ROCKCHIP_OUT_MODE_AAAA;
+               break;
+       }
+
        s->output_type = DRM_MODE_CONNECTOR_eDP;

        return 0;
@@ -382,6 +405,13 @@ static const struct dev_pm_ops rockchip_dp_pm_ops = {
        SET_SYSTEM_SLEEP_PM_OPS(rockchip_dp_suspend, rockchip_dp_resume)
 };

+static const struct rockchip_dp_chip_data rk3399_edp = {
+       .lcdsel_grf_reg = 0x6250,
+       .lcdsel_big = 0 | BIT(21),
+       .lcdsel_lit = BIT(5) | BIT(21),
+       .chip_type = RK3399_EDP,
+};
+
 static const struct rockchip_dp_chip_data rk3288_dp = {
        .lcdsel_grf_reg = 0x025c,
        .lcdsel_big = 0 | BIT(21),
@@ -391,6 +421,7 @@ 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 06c0250..82b8135 100644
--- a/include/drm/bridge/analogix_dp.h
+++ b/include/drm/bridge/analogix_dp.h
@@ -20,6 +20,7 @@ enum analogix_dp_devtype {

 enum analogix_dp_sub_devtype {
        RK3288_DP,
+       RK3399_EDP,
 };

 struct analogix_dp_plat_data {
-- 
1.9.1


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