[17/48] drm: omapdrm: displays: Get connector source at connect time
diff mbox

Message ID 20171013145944.26557-18-laurent.pinchart@ideasonboard.com
State New
Headers show

Commit Message

Laurent Pinchart Oct. 13, 2017, 2:59 p.m. UTC
The connector drivers need a handle to the source they are connected to
in order to control the source.

All drivers get that handle at probe time, resulting in probe deferral
when the source hasn't been probed yet. However they don't need the
handle until their connect handler is called.

Move retrieval of the source handle to the connect handler to avoid
probe deferrals.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 .../gpu/drm/omapdrm/displays/connector-analog-tv.c | 45 ++++++++--------------
 drivers/gpu/drm/omapdrm/displays/connector-dvi.c   | 31 +++++++--------
 drivers/gpu/drm/omapdrm/displays/connector-hdmi.c  | 37 ++++++++----------
 3 files changed, 46 insertions(+), 67 deletions(-)

Comments

Sebastian Reichel Oct. 14, 2017, 12:51 p.m. UTC | #1
Hi,

On Fri, Oct 13, 2017 at 05:59:13PM +0300, Laurent Pinchart wrote:
> The connector drivers need a handle to the source they are connected to
> in order to control the source.
> 
> All drivers get that handle at probe time, resulting in probe deferral
> when the source hasn't been probed yet. However they don't need the
> handle until their connect handler is called.
> 
> Move retrieval of the source handle to the connect handler to avoid
> probe deferrals.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> ---

Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>

-- Sebastian

>  .../gpu/drm/omapdrm/displays/connector-analog-tv.c | 45 ++++++++--------------
>  drivers/gpu/drm/omapdrm/displays/connector-dvi.c   | 31 +++++++--------
>  drivers/gpu/drm/omapdrm/displays/connector-hdmi.c  | 37 ++++++++----------
>  3 files changed, 46 insertions(+), 67 deletions(-)
> 
> diff --git a/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c b/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c
> index 44c7d9238b54..f07546b8e8dd 100644
> --- a/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c
> +++ b/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c
> @@ -45,7 +45,7 @@ static const struct videomode tvc_pal_vm = {
>  static int tvc_connect(struct omap_dss_device *dssdev)
>  {
>  	struct panel_drv_data *ddata = to_panel_data(dssdev);
> -	struct omap_dss_device *in = ddata->in;
> +	struct omap_dss_device *in;
>  	int r;
>  
>  	dev_dbg(ddata->dev, "connect\n");
> @@ -53,10 +53,19 @@ static int tvc_connect(struct omap_dss_device *dssdev)
>  	if (omapdss_device_is_connected(dssdev))
>  		return 0;
>  
> +	in = omapdss_of_find_source_for_first_ep(ddata->dev->of_node);
> +	if (IS_ERR(in)) {
> +		dev_err(ddata->dev, "failed to find video source\n");
> +		return PTR_ERR(in);
> +	}
> +
>  	r = in->ops.atv->connect(in, dssdev);
> -	if (r)
> +	if (r) {
> +		omap_dss_put_device(in);
>  		return r;
> +	}
>  
> +	ddata->in = in;
>  	return 0;
>  }
>  
> @@ -71,6 +80,9 @@ static void tvc_disconnect(struct omap_dss_device *dssdev)
>  		return;
>  
>  	in->ops.atv->disconnect(in, dssdev);
> +
> +	omap_dss_put_device(in);
> +	ddata->in = NULL;
>  }
>  
>  static int tvc_enable(struct omap_dss_device *dssdev)
> @@ -173,23 +185,6 @@ static struct omap_dss_driver tvc_driver = {
>  	.set_wss		= tvc_set_wss,
>  };
>  
> -static int tvc_probe_of(struct platform_device *pdev)
> -{
> -	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
> -	struct device_node *node = pdev->dev.of_node;
> -	struct omap_dss_device *in;
> -
> -	in = omapdss_of_find_source_for_first_ep(node);
> -	if (IS_ERR(in)) {
> -		dev_err(&pdev->dev, "failed to find video source\n");
> -		return PTR_ERR(in);
> -	}
> -
> -	ddata->in = in;
> -
> -	return 0;
> -}
> -
>  static int tvc_probe(struct platform_device *pdev)
>  {
>  	struct panel_drv_data *ddata;
> @@ -203,10 +198,6 @@ static int tvc_probe(struct platform_device *pdev)
>  	platform_set_drvdata(pdev, ddata);
>  	ddata->dev = &pdev->dev;
>  
> -	r = tvc_probe_of(pdev);
> -	if (r)
> -		return r;
> -
>  	ddata->vm = tvc_pal_vm;
>  
>  	dssdev = &ddata->dssdev;
> @@ -219,28 +210,22 @@ static int tvc_probe(struct platform_device *pdev)
>  	r = omapdss_register_display(dssdev);
>  	if (r) {
>  		dev_err(&pdev->dev, "Failed to register panel\n");
> -		goto err_reg;
> +		return r;
>  	}
>  
>  	return 0;
> -err_reg:
> -	omap_dss_put_device(ddata->in);
> -	return r;
>  }
>  
>  static int __exit tvc_remove(struct platform_device *pdev)
>  {
>  	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
>  	struct omap_dss_device *dssdev = &ddata->dssdev;
> -	struct omap_dss_device *in = ddata->in;
>  
>  	omapdss_unregister_display(&ddata->dssdev);
>  
>  	tvc_disable(dssdev);
>  	tvc_disconnect(dssdev);
>  
> -	omap_dss_put_device(in);
> -
>  	return 0;
>  }
>  
> diff --git a/drivers/gpu/drm/omapdrm/displays/connector-dvi.c b/drivers/gpu/drm/omapdrm/displays/connector-dvi.c
> index 7728b5425d19..ad915860b7fd 100644
> --- a/drivers/gpu/drm/omapdrm/displays/connector-dvi.c
> +++ b/drivers/gpu/drm/omapdrm/displays/connector-dvi.c
> @@ -51,16 +51,25 @@ struct panel_drv_data {
>  static int dvic_connect(struct omap_dss_device *dssdev)
>  {
>  	struct panel_drv_data *ddata = to_panel_data(dssdev);
> -	struct omap_dss_device *in = ddata->in;
> +	struct omap_dss_device *in;
>  	int r;
>  
>  	if (omapdss_device_is_connected(dssdev))
>  		return 0;
>  
> +	in = omapdss_of_find_source_for_first_ep(dssdev->dev->of_node);
> +	if (IS_ERR(in)) {
> +		dev_err(dssdev->dev, "failed to find video source\n");
> +		return PTR_ERR(in);
> +	}
> +
>  	r = in->ops.dvi->connect(in, dssdev);
> -	if (r)
> +	if (r) {
> +		omap_dss_put_device(in);
>  		return r;
> +	}
>  
> +	ddata->in = in;
>  	return 0;
>  }
>  
> @@ -73,6 +82,9 @@ static void dvic_disconnect(struct omap_dss_device *dssdev)
>  		return;
>  
>  	in->ops.dvi->disconnect(in, dssdev);
> +
> +	omap_dss_put_device(in);
> +	ddata->in = NULL;
>  }
>  
>  static int dvic_enable(struct omap_dss_device *dssdev)
> @@ -235,25 +247,15 @@ static int dvic_probe_of(struct platform_device *pdev)
>  {
>  	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
>  	struct device_node *node = pdev->dev.of_node;
> -	struct omap_dss_device *in;
>  	struct device_node *adapter_node;
>  	struct i2c_adapter *adapter;
>  
> -	in = omapdss_of_find_source_for_first_ep(node);
> -	if (IS_ERR(in)) {
> -		dev_err(&pdev->dev, "failed to find video source\n");
> -		return PTR_ERR(in);
> -	}
> -
> -	ddata->in = in;
> -
>  	adapter_node = of_parse_phandle(node, "ddc-i2c-bus", 0);
>  	if (adapter_node) {
>  		adapter = of_get_i2c_adapter_by_node(adapter_node);
>  		of_node_put(adapter_node);
>  		if (adapter == NULL) {
>  			dev_err(&pdev->dev, "failed to parse ddc-i2c-bus\n");
> -			omap_dss_put_device(ddata->in);
>  			return -EPROBE_DEFER;
>  		}
>  
> @@ -297,8 +299,6 @@ static int dvic_probe(struct platform_device *pdev)
>  	return 0;
>  
>  err_reg:
> -	omap_dss_put_device(ddata->in);
> -
>  	i2c_put_adapter(ddata->i2c_adapter);
>  
>  	return r;
> @@ -308,15 +308,12 @@ static int __exit dvic_remove(struct platform_device *pdev)
>  {
>  	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
>  	struct omap_dss_device *dssdev = &ddata->dssdev;
> -	struct omap_dss_device *in = ddata->in;
>  
>  	omapdss_unregister_display(&ddata->dssdev);
>  
>  	dvic_disable(dssdev);
>  	dvic_disconnect(dssdev);
>  
> -	omap_dss_put_device(in);
> -
>  	i2c_put_adapter(ddata->i2c_adapter);
>  
>  	return 0;
> diff --git a/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c b/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c
> index b8d74fba4f45..dedf60b32dab 100644
> --- a/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c
> +++ b/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c
> @@ -55,7 +55,7 @@ struct panel_drv_data {
>  static int hdmic_connect(struct omap_dss_device *dssdev)
>  {
>  	struct panel_drv_data *ddata = to_panel_data(dssdev);
> -	struct omap_dss_device *in = ddata->in;
> +	struct omap_dss_device *in;
>  	int r;
>  
>  	dev_dbg(ddata->dev, "connect\n");
> @@ -63,10 +63,19 @@ static int hdmic_connect(struct omap_dss_device *dssdev)
>  	if (omapdss_device_is_connected(dssdev))
>  		return 0;
>  
> +	in = omapdss_of_find_source_for_first_ep(ddata->dev->of_node);
> +	if (IS_ERR(in)) {
> +		dev_err(ddata->dev, "failed to find video source\n");
> +		return PTR_ERR(in);
> +	}
> +
>  	r = in->ops.hdmi->connect(in, dssdev);
> -	if (r)
> +	if (r) {
> +		omap_dss_put_device(in);
>  		return r;
> +	}
>  
> +	ddata->in = in;
>  	return 0;
>  }
>  
> @@ -81,6 +90,9 @@ static void hdmic_disconnect(struct omap_dss_device *dssdev)
>  		return;
>  
>  	in->ops.hdmi->disconnect(in, dssdev);
> +
> +	omap_dss_put_device(in);
> +	ddata->in = NULL;
>  }
>  
>  static int hdmic_enable(struct omap_dss_device *dssdev)
> @@ -302,7 +314,6 @@ static int hdmic_probe_of(struct platform_device *pdev)
>  {
>  	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
>  	struct device_node *node = pdev->dev.of_node;
> -	struct omap_dss_device *in;
>  	int gpio;
>  
>  	/* HPD GPIO */
> @@ -312,14 +323,6 @@ static int hdmic_probe_of(struct platform_device *pdev)
>  	else
>  		ddata->hpd_gpio = -ENODEV;
>  
> -	in = omapdss_of_find_source_for_first_ep(node);
> -	if (IS_ERR(in)) {
> -		dev_err(&pdev->dev, "failed to find video source\n");
> -		return PTR_ERR(in);
> -	}
> -
> -	ddata->in = in;
> -
>  	return 0;
>  }
>  
> @@ -346,7 +349,7 @@ static int hdmic_probe(struct platform_device *pdev)
>  		r = devm_gpio_request_one(&pdev->dev, ddata->hpd_gpio,
>  				GPIOF_DIR_IN, "hdmi_hpd");
>  		if (r)
> -			goto err_reg;
> +			return r;
>  
>  		r = devm_request_threaded_irq(&pdev->dev,
>  				gpio_to_irq(ddata->hpd_gpio),
> @@ -355,7 +358,7 @@ static int hdmic_probe(struct platform_device *pdev)
>  				IRQF_ONESHOT,
>  				"hdmic hpd", ddata);
>  		if (r)
> -			goto err_reg;
> +			return r;
>  	}
>  
>  	ddata->vm = hdmic_default_vm;
> @@ -370,28 +373,22 @@ static int hdmic_probe(struct platform_device *pdev)
>  	r = omapdss_register_display(dssdev);
>  	if (r) {
>  		dev_err(&pdev->dev, "Failed to register panel\n");
> -		goto err_reg;
> +		return r;
>  	}
>  
>  	return 0;
> -err_reg:
> -	omap_dss_put_device(ddata->in);
> -	return r;
>  }
>  
>  static int __exit hdmic_remove(struct platform_device *pdev)
>  {
>  	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
>  	struct omap_dss_device *dssdev = &ddata->dssdev;
> -	struct omap_dss_device *in = ddata->in;
>  
>  	omapdss_unregister_display(&ddata->dssdev);
>  
>  	hdmic_disable(dssdev);
>  	hdmic_disconnect(dssdev);
>  
> -	omap_dss_put_device(in);
> -
>  	return 0;
>  }
>  
> -- 
> Regards,
> 
> Laurent Pinchart
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

Patch
diff mbox

diff --git a/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c b/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c
index 44c7d9238b54..f07546b8e8dd 100644
--- a/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c
+++ b/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c
@@ -45,7 +45,7 @@  static const struct videomode tvc_pal_vm = {
 static int tvc_connect(struct omap_dss_device *dssdev)
 {
 	struct panel_drv_data *ddata = to_panel_data(dssdev);
-	struct omap_dss_device *in = ddata->in;
+	struct omap_dss_device *in;
 	int r;
 
 	dev_dbg(ddata->dev, "connect\n");
@@ -53,10 +53,19 @@  static int tvc_connect(struct omap_dss_device *dssdev)
 	if (omapdss_device_is_connected(dssdev))
 		return 0;
 
+	in = omapdss_of_find_source_for_first_ep(ddata->dev->of_node);
+	if (IS_ERR(in)) {
+		dev_err(ddata->dev, "failed to find video source\n");
+		return PTR_ERR(in);
+	}
+
 	r = in->ops.atv->connect(in, dssdev);
-	if (r)
+	if (r) {
+		omap_dss_put_device(in);
 		return r;
+	}
 
+	ddata->in = in;
 	return 0;
 }
 
@@ -71,6 +80,9 @@  static void tvc_disconnect(struct omap_dss_device *dssdev)
 		return;
 
 	in->ops.atv->disconnect(in, dssdev);
+
+	omap_dss_put_device(in);
+	ddata->in = NULL;
 }
 
 static int tvc_enable(struct omap_dss_device *dssdev)
@@ -173,23 +185,6 @@  static struct omap_dss_driver tvc_driver = {
 	.set_wss		= tvc_set_wss,
 };
 
-static int tvc_probe_of(struct platform_device *pdev)
-{
-	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
-	struct device_node *node = pdev->dev.of_node;
-	struct omap_dss_device *in;
-
-	in = omapdss_of_find_source_for_first_ep(node);
-	if (IS_ERR(in)) {
-		dev_err(&pdev->dev, "failed to find video source\n");
-		return PTR_ERR(in);
-	}
-
-	ddata->in = in;
-
-	return 0;
-}
-
 static int tvc_probe(struct platform_device *pdev)
 {
 	struct panel_drv_data *ddata;
@@ -203,10 +198,6 @@  static int tvc_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, ddata);
 	ddata->dev = &pdev->dev;
 
-	r = tvc_probe_of(pdev);
-	if (r)
-		return r;
-
 	ddata->vm = tvc_pal_vm;
 
 	dssdev = &ddata->dssdev;
@@ -219,28 +210,22 @@  static int tvc_probe(struct platform_device *pdev)
 	r = omapdss_register_display(dssdev);
 	if (r) {
 		dev_err(&pdev->dev, "Failed to register panel\n");
-		goto err_reg;
+		return r;
 	}
 
 	return 0;
-err_reg:
-	omap_dss_put_device(ddata->in);
-	return r;
 }
 
 static int __exit tvc_remove(struct platform_device *pdev)
 {
 	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
 	struct omap_dss_device *dssdev = &ddata->dssdev;
-	struct omap_dss_device *in = ddata->in;
 
 	omapdss_unregister_display(&ddata->dssdev);
 
 	tvc_disable(dssdev);
 	tvc_disconnect(dssdev);
 
-	omap_dss_put_device(in);
-
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/omapdrm/displays/connector-dvi.c b/drivers/gpu/drm/omapdrm/displays/connector-dvi.c
index 7728b5425d19..ad915860b7fd 100644
--- a/drivers/gpu/drm/omapdrm/displays/connector-dvi.c
+++ b/drivers/gpu/drm/omapdrm/displays/connector-dvi.c
@@ -51,16 +51,25 @@  struct panel_drv_data {
 static int dvic_connect(struct omap_dss_device *dssdev)
 {
 	struct panel_drv_data *ddata = to_panel_data(dssdev);
-	struct omap_dss_device *in = ddata->in;
+	struct omap_dss_device *in;
 	int r;
 
 	if (omapdss_device_is_connected(dssdev))
 		return 0;
 
+	in = omapdss_of_find_source_for_first_ep(dssdev->dev->of_node);
+	if (IS_ERR(in)) {
+		dev_err(dssdev->dev, "failed to find video source\n");
+		return PTR_ERR(in);
+	}
+
 	r = in->ops.dvi->connect(in, dssdev);
-	if (r)
+	if (r) {
+		omap_dss_put_device(in);
 		return r;
+	}
 
+	ddata->in = in;
 	return 0;
 }
 
@@ -73,6 +82,9 @@  static void dvic_disconnect(struct omap_dss_device *dssdev)
 		return;
 
 	in->ops.dvi->disconnect(in, dssdev);
+
+	omap_dss_put_device(in);
+	ddata->in = NULL;
 }
 
 static int dvic_enable(struct omap_dss_device *dssdev)
@@ -235,25 +247,15 @@  static int dvic_probe_of(struct platform_device *pdev)
 {
 	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
 	struct device_node *node = pdev->dev.of_node;
-	struct omap_dss_device *in;
 	struct device_node *adapter_node;
 	struct i2c_adapter *adapter;
 
-	in = omapdss_of_find_source_for_first_ep(node);
-	if (IS_ERR(in)) {
-		dev_err(&pdev->dev, "failed to find video source\n");
-		return PTR_ERR(in);
-	}
-
-	ddata->in = in;
-
 	adapter_node = of_parse_phandle(node, "ddc-i2c-bus", 0);
 	if (adapter_node) {
 		adapter = of_get_i2c_adapter_by_node(adapter_node);
 		of_node_put(adapter_node);
 		if (adapter == NULL) {
 			dev_err(&pdev->dev, "failed to parse ddc-i2c-bus\n");
-			omap_dss_put_device(ddata->in);
 			return -EPROBE_DEFER;
 		}
 
@@ -297,8 +299,6 @@  static int dvic_probe(struct platform_device *pdev)
 	return 0;
 
 err_reg:
-	omap_dss_put_device(ddata->in);
-
 	i2c_put_adapter(ddata->i2c_adapter);
 
 	return r;
@@ -308,15 +308,12 @@  static int __exit dvic_remove(struct platform_device *pdev)
 {
 	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
 	struct omap_dss_device *dssdev = &ddata->dssdev;
-	struct omap_dss_device *in = ddata->in;
 
 	omapdss_unregister_display(&ddata->dssdev);
 
 	dvic_disable(dssdev);
 	dvic_disconnect(dssdev);
 
-	omap_dss_put_device(in);
-
 	i2c_put_adapter(ddata->i2c_adapter);
 
 	return 0;
diff --git a/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c b/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c
index b8d74fba4f45..dedf60b32dab 100644
--- a/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c
+++ b/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c
@@ -55,7 +55,7 @@  struct panel_drv_data {
 static int hdmic_connect(struct omap_dss_device *dssdev)
 {
 	struct panel_drv_data *ddata = to_panel_data(dssdev);
-	struct omap_dss_device *in = ddata->in;
+	struct omap_dss_device *in;
 	int r;
 
 	dev_dbg(ddata->dev, "connect\n");
@@ -63,10 +63,19 @@  static int hdmic_connect(struct omap_dss_device *dssdev)
 	if (omapdss_device_is_connected(dssdev))
 		return 0;
 
+	in = omapdss_of_find_source_for_first_ep(ddata->dev->of_node);
+	if (IS_ERR(in)) {
+		dev_err(ddata->dev, "failed to find video source\n");
+		return PTR_ERR(in);
+	}
+
 	r = in->ops.hdmi->connect(in, dssdev);
-	if (r)
+	if (r) {
+		omap_dss_put_device(in);
 		return r;
+	}
 
+	ddata->in = in;
 	return 0;
 }
 
@@ -81,6 +90,9 @@  static void hdmic_disconnect(struct omap_dss_device *dssdev)
 		return;
 
 	in->ops.hdmi->disconnect(in, dssdev);
+
+	omap_dss_put_device(in);
+	ddata->in = NULL;
 }
 
 static int hdmic_enable(struct omap_dss_device *dssdev)
@@ -302,7 +314,6 @@  static int hdmic_probe_of(struct platform_device *pdev)
 {
 	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
 	struct device_node *node = pdev->dev.of_node;
-	struct omap_dss_device *in;
 	int gpio;
 
 	/* HPD GPIO */
@@ -312,14 +323,6 @@  static int hdmic_probe_of(struct platform_device *pdev)
 	else
 		ddata->hpd_gpio = -ENODEV;
 
-	in = omapdss_of_find_source_for_first_ep(node);
-	if (IS_ERR(in)) {
-		dev_err(&pdev->dev, "failed to find video source\n");
-		return PTR_ERR(in);
-	}
-
-	ddata->in = in;
-
 	return 0;
 }
 
@@ -346,7 +349,7 @@  static int hdmic_probe(struct platform_device *pdev)
 		r = devm_gpio_request_one(&pdev->dev, ddata->hpd_gpio,
 				GPIOF_DIR_IN, "hdmi_hpd");
 		if (r)
-			goto err_reg;
+			return r;
 
 		r = devm_request_threaded_irq(&pdev->dev,
 				gpio_to_irq(ddata->hpd_gpio),
@@ -355,7 +358,7 @@  static int hdmic_probe(struct platform_device *pdev)
 				IRQF_ONESHOT,
 				"hdmic hpd", ddata);
 		if (r)
-			goto err_reg;
+			return r;
 	}
 
 	ddata->vm = hdmic_default_vm;
@@ -370,28 +373,22 @@  static int hdmic_probe(struct platform_device *pdev)
 	r = omapdss_register_display(dssdev);
 	if (r) {
 		dev_err(&pdev->dev, "Failed to register panel\n");
-		goto err_reg;
+		return r;
 	}
 
 	return 0;
-err_reg:
-	omap_dss_put_device(ddata->in);
-	return r;
 }
 
 static int __exit hdmic_remove(struct platform_device *pdev)
 {
 	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
 	struct omap_dss_device *dssdev = &ddata->dssdev;
-	struct omap_dss_device *in = ddata->in;
 
 	omapdss_unregister_display(&ddata->dssdev);
 
 	hdmic_disable(dssdev);
 	hdmic_disconnect(dssdev);
 
-	omap_dss_put_device(in);
-
 	return 0;
 }