drm/rockchip: analogix_dp: Remove unnecessary init code

Remove unnecessary init code, since we would do it in the power_on()
callback.

Also move of parse code to probe().

Fixes: 9e32e16e9e98 ("drm: rockchip: dp: add rockchip platform dp driver")
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Acked-by: Mark Yao <mark.yao@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20171019034812.13768-3-jeffy.chen@rock-chips.com

diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
index 4d3f6ad..8cae5ad 100644 (file)
--- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
+++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
@@ -269,7 +269,7 @@ static struct drm_encoder_funcs rockchip_dp_encoder_funcs = {
        .destroy = rockchip_dp_drm_encoder_destroy,
 };
 
-static int rockchip_dp_init(struct rockchip_dp_device *dp)
+static int rockchip_dp_of_probe(struct rockchip_dp_device *dp)
 {
        struct device *dev = dp->dev;
        struct device_node *np = dev->of_node;
@@ -303,19 +303,6 @@ static int rockchip_dp_init(struct rockchip_dp_device *dp)
                return PTR_ERR(dp->rst);
        }
 
-       ret = clk_prepare_enable(dp->pclk);
-       if (ret < 0) {
-               DRM_DEV_ERROR(dp->dev, "failed to enable pclk %d\n", ret);
-               return ret;
-       }
-
-       ret = rockchip_dp_pre_init(dp);
-       if (ret < 0) {
-               DRM_DEV_ERROR(dp->dev, "failed to pre init %d\n", ret);
-               clk_disable_unprepare(dp->pclk);
-               return ret;
-       }
-
        return 0;
 }
 
@@ -361,10 +348,6 @@ static int rockchip_dp_bind(struct device *dev, struct device *master,
        if (!dp_data)
                return -ENODEV;
 
-       ret = rockchip_dp_init(dp);
-       if (ret < 0)
-               return ret;
-
        dp->data = dp_data;
        dp->drm_dev = drm_dev;
 
@@ -398,7 +381,6 @@ static void rockchip_dp_unbind(struct device *dev, struct device *master,
        rockchip_drm_psr_unregister(&dp->encoder);
 
        analogix_dp_unbind(dev, master, data);
-       clk_disable_unprepare(dp->pclk);
 }
 
 static const struct component_ops rockchip_dp_component_ops = {
@@ -414,7 +396,7 @@ static int rockchip_dp_probe(struct platform_device *pdev)
        int ret;
 
        ret = drm_of_find_panel_or_bridge(dev->of_node, 1, 0, &panel, NULL);
-       if (ret)
+       if (ret < 0)
                return ret;
 
        dp = devm_kzalloc(dev, sizeof(*dp), GFP_KERNEL);
@@ -422,9 +404,12 @@ static int rockchip_dp_probe(struct platform_device *pdev)
                return -ENOMEM;
 
        dp->dev = dev;
-
        dp->plat_data.panel = panel;
 
+       ret = rockchip_dp_of_probe(dp);
+       if (ret < 0)
+               return ret;
+
        /*
         * We just use the drvdata until driver run into component
         * add function, and then we would set drvdata to null, so