diff mbox series

[RESEND,v3,14/15] drm/msm/dp: move next_bridge handling to dp_display

Message ID 20240126-dp-power-parser-cleanup-v3-14-098d5f581dd3@linaro.org (mailing list archive)
State New, archived
Headers show
Series drm/msm/dp: clear power and parser submodules away | expand

Commit Message

Dmitry Baryshkov Jan. 26, 2024, 6:26 p.m. UTC 
Remove two levels of indirection and fetch next bridge directly in
dp_display_probe_tail().

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/gpu/drm/msm/dp/dp_display.c | 43 ++++++++++++-------------------------
 drivers/gpu/drm/msm/dp/dp_parser.c  | 14 ------------
 drivers/gpu/drm/msm/dp/dp_parser.h  | 14 ------------
 3 files changed, 14 insertions(+), 57 deletions(-)

Comments

Kuogee Hsieh Jan. 26, 2024, 10:25 p.m. UTC | #1 
On 1/26/2024 10:26 AM, Dmitry Baryshkov wrote:
> Remove two levels of indirection and fetch next bridge directly in
> dp_display_probe_tail().
>
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
> ---
>   drivers/gpu/drm/msm/dp/dp_display.c | 43 ++++++++++++-------------------------
>   drivers/gpu/drm/msm/dp/dp_parser.c  | 14 ------------
>   drivers/gpu/drm/msm/dp/dp_parser.h  | 14 ------------
>   3 files changed, 14 insertions(+), 57 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
> index f19cb8c7e8cb..de1306a88748 100644
> --- a/drivers/gpu/drm/msm/dp/dp_display.c
> +++ b/drivers/gpu/drm/msm/dp/dp_display.c
> @@ -1195,16 +1195,25 @@ static const struct msm_dp_desc *dp_display_get_desc(struct platform_device *pde
>   	return NULL;
>   }
>   
> -static int dp_display_get_next_bridge(struct msm_dp *dp);
> -
>   static int dp_display_probe_tail(struct device *dev)
>   {
>   	struct msm_dp *dp = dev_get_drvdata(dev);
>   	int ret;
>   
> -	ret = dp_display_get_next_bridge(dp);
> -	if (ret)
> -		return ret;
> +	/*
> +	 * External bridges are mandatory for eDP interfaces: one has to
> +	 * provide at least an eDP panel (which gets wrapped into panel-bridge).
> +	 *
> +	 * For DisplayPort interfaces external bridges are optional, so
> +	 * silently ignore an error if one is not present (-ENODEV).
> +	 */
> +	dp->next_bridge = devm_drm_of_get_bridge(&dp->pdev->dev, dp->pdev->dev.of_node, 1, 0);
> +	if (IS_ERR(dp->next_bridge)) {
> +		ret = PTR_ERR(dp->next_bridge);
> +		dp->next_bridge = NULL;
> +		if (dp->is_edp || ret != -ENODEV)
> +			return ret;
> +	}
>   
>   	ret = component_add(dev, &dp_display_comp_ops);
>   	if (ret)
> @@ -1397,30 +1406,6 @@ void dp_display_debugfs_init(struct msm_dp *dp_display, struct dentry *root, boo
>   	}
>   }
>   
> -static int dp_display_get_next_bridge(struct msm_dp *dp)
> -{
> -	int rc;
> -	struct dp_display_private *dp_priv;
> -
> -	dp_priv = container_of(dp, struct dp_display_private, dp_display);
> -
> -	/*
> -	 * External bridges are mandatory for eDP interfaces: one has to
> -	 * provide at least an eDP panel (which gets wrapped into panel-bridge).
> -	 *
> -	 * For DisplayPort interfaces external bridges are optional, so
> -	 * silently ignore an error if one is not present (-ENODEV).
> -	 */
> -	rc = devm_dp_parser_find_next_bridge(&dp->pdev->dev, dp_priv->parser);
> -	if (!dp->is_edp && rc == -ENODEV)
> -		return 0;
> -
> -	if (!rc)
> -		dp->next_bridge = dp_priv->parser->next_bridge;
> -
> -	return rc;
> -}
> -
>   int msm_dp_modeset_init(struct msm_dp *dp_display, struct drm_device *dev,
>   			struct drm_encoder *encoder)
>   {
> diff --git a/drivers/gpu/drm/msm/dp/dp_parser.c b/drivers/gpu/drm/msm/dp/dp_parser.c
> index aa135d5cedbd..f95ab3c5c72c 100644
> --- a/drivers/gpu/drm/msm/dp/dp_parser.c
> +++ b/drivers/gpu/drm/msm/dp/dp_parser.c
> @@ -24,20 +24,6 @@ static int dp_parser_ctrl_res(struct dp_parser *parser)
>   	return 0;
>   }
>   
> -int devm_dp_parser_find_next_bridge(struct device *dev, struct dp_parser *parser)
> -{
> -	struct platform_device *pdev = parser->pdev;
> -	struct drm_bridge *bridge;
> -
> -	bridge = devm_drm_of_get_bridge(dev, pdev->dev.of_node, 1, 0);
> -	if (IS_ERR(bridge))
> -		return PTR_ERR(bridge);
> -
> -	parser->next_bridge = bridge;
> -
> -	return 0;
> -}
> -
>   static int dp_parser_parse(struct dp_parser *parser)
>   {
>   	int rc = 0;
> diff --git a/drivers/gpu/drm/msm/dp/dp_parser.h b/drivers/gpu/drm/msm/dp/dp_parser.h
> index 21a66932e35e..38fd335d5950 100644
> --- a/drivers/gpu/drm/msm/dp/dp_parser.h
> +++ b/drivers/gpu/drm/msm/dp/dp_parser.h
> @@ -21,7 +21,6 @@
>   struct dp_parser {
>   	struct platform_device *pdev;
>   	struct phy *phy;
> -	struct drm_bridge *next_bridge;
>   };
>   
>   /**
> @@ -37,17 +36,4 @@ struct dp_parser {
>    */
>   struct dp_parser *dp_parser_get(struct platform_device *pdev);
>   
> -/**
> - * devm_dp_parser_find_next_bridge() - find an additional bridge to DP
> - *
> - * @dev: device to tie bridge lifetime to
> - * @parser: dp_parser data from client
> - *
> - * This function is used to find any additional bridge attached to
> - * the DP controller. The eDP interface requires a panel bridge.
> - *
> - * Return: 0 if able to get the bridge, otherwise negative errno for failure.
> - */
> -int devm_dp_parser_find_next_bridge(struct device *dev, struct dp_parser *parser);
> -
>   #endif
>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index f19cb8c7e8cb..de1306a88748 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -1195,16 +1195,25 @@  static const struct msm_dp_desc *dp_display_get_desc(struct platform_device *pde
 	return NULL;
 }
 
-static int dp_display_get_next_bridge(struct msm_dp *dp);
-
 static int dp_display_probe_tail(struct device *dev)
 {
 	struct msm_dp *dp = dev_get_drvdata(dev);
 	int ret;
 
-	ret = dp_display_get_next_bridge(dp);
-	if (ret)
-		return ret;
+	/*
+	 * External bridges are mandatory for eDP interfaces: one has to
+	 * provide at least an eDP panel (which gets wrapped into panel-bridge).
+	 *
+	 * For DisplayPort interfaces external bridges are optional, so
+	 * silently ignore an error if one is not present (-ENODEV).
+	 */
+	dp->next_bridge = devm_drm_of_get_bridge(&dp->pdev->dev, dp->pdev->dev.of_node, 1, 0);
+	if (IS_ERR(dp->next_bridge)) {
+		ret = PTR_ERR(dp->next_bridge);
+		dp->next_bridge = NULL;
+		if (dp->is_edp || ret != -ENODEV)
+			return ret;
+	}
 
 	ret = component_add(dev, &dp_display_comp_ops);
 	if (ret)
@@ -1397,30 +1406,6 @@  void dp_display_debugfs_init(struct msm_dp *dp_display, struct dentry *root, boo
 	}
 }
 
-static int dp_display_get_next_bridge(struct msm_dp *dp)
-{
-	int rc;
-	struct dp_display_private *dp_priv;
-
-	dp_priv = container_of(dp, struct dp_display_private, dp_display);
-
-	/*
-	 * External bridges are mandatory for eDP interfaces: one has to
-	 * provide at least an eDP panel (which gets wrapped into panel-bridge).
-	 *
-	 * For DisplayPort interfaces external bridges are optional, so
-	 * silently ignore an error if one is not present (-ENODEV).
-	 */
-	rc = devm_dp_parser_find_next_bridge(&dp->pdev->dev, dp_priv->parser);
-	if (!dp->is_edp && rc == -ENODEV)
-		return 0;
-
-	if (!rc)
-		dp->next_bridge = dp_priv->parser->next_bridge;
-
-	return rc;
-}
-
 int msm_dp_modeset_init(struct msm_dp *dp_display, struct drm_device *dev,
 			struct drm_encoder *encoder)
 {
diff --git a/drivers/gpu/drm/msm/dp/dp_parser.c b/drivers/gpu/drm/msm/dp/dp_parser.c
index aa135d5cedbd..f95ab3c5c72c 100644
--- a/drivers/gpu/drm/msm/dp/dp_parser.c
+++ b/drivers/gpu/drm/msm/dp/dp_parser.c
@@ -24,20 +24,6 @@  static int dp_parser_ctrl_res(struct dp_parser *parser)
 	return 0;
 }
 
-int devm_dp_parser_find_next_bridge(struct device *dev, struct dp_parser *parser)
-{
-	struct platform_device *pdev = parser->pdev;
-	struct drm_bridge *bridge;
-
-	bridge = devm_drm_of_get_bridge(dev, pdev->dev.of_node, 1, 0);
-	if (IS_ERR(bridge))
-		return PTR_ERR(bridge);
-
-	parser->next_bridge = bridge;
-
-	return 0;
-}
-
 static int dp_parser_parse(struct dp_parser *parser)
 {
 	int rc = 0;
diff --git a/drivers/gpu/drm/msm/dp/dp_parser.h b/drivers/gpu/drm/msm/dp/dp_parser.h
index 21a66932e35e..38fd335d5950 100644
--- a/drivers/gpu/drm/msm/dp/dp_parser.h
+++ b/drivers/gpu/drm/msm/dp/dp_parser.h
@@ -21,7 +21,6 @@ 
 struct dp_parser {
 	struct platform_device *pdev;
 	struct phy *phy;
-	struct drm_bridge *next_bridge;
 };
 
 /**
@@ -37,17 +36,4 @@  struct dp_parser {
  */
 struct dp_parser *dp_parser_get(struct platform_device *pdev);
 
-/**
- * devm_dp_parser_find_next_bridge() - find an additional bridge to DP
- *
- * @dev: device to tie bridge lifetime to
- * @parser: dp_parser data from client
- *
- * This function is used to find any additional bridge attached to
- * the DP controller. The eDP interface requires a panel bridge.
- *
- * Return: 0 if able to get the bridge, otherwise negative errno for failure.
- */
-int devm_dp_parser_find_next_bridge(struct device *dev, struct dp_parser *parser);
-
 #endif