diff mbox

[09/11] drm/exynos: remove exynos_drm_create_enc_conn()

Message ID 1438628998-3435-10-git-send-email-gustavo@padovan.org (mailing list archive)
State New, archived
Headers show

Commit Message

Gustavo Padovan Aug. 3, 2015, 7:09 p.m. UTC 
From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

This functions was just hiding the encoder and connector creation in
a way that was less clean than if we get rid of it. For example,
exynos_encoder ops had .create_connector() defined only because we were
handing off the encoder and connector creation to
exynos_drm_create_enc_conn(). Without this function we can directly call
the create_connector function internally in the code, without the need of
any vtable access.

It also does some refactoring in the code like creating a bind function
for dpi devices.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 drivers/gpu/drm/exynos/exynos7_drm_decon.c  |  3 +--
 drivers/gpu/drm/exynos/exynos_dp_core.c     | 20 ++++++++++++++++---
 drivers/gpu/drm/exynos/exynos_drm_core.c    | 30 -----------------------------
 drivers/gpu/drm/exynos/exynos_drm_dpi.c     | 26 +++++++++++++++++++++++--
 drivers/gpu/drm/exynos/exynos_drm_drv.h     | 12 ++++++------
 drivers/gpu/drm/exynos/exynos_drm_dsi.c     | 20 ++++++++++++-------
 drivers/gpu/drm/exynos/exynos_drm_encoder.c | 11 +++++++----
 drivers/gpu/drm/exynos/exynos_drm_encoder.h |  4 +++-
 drivers/gpu/drm/exynos/exynos_drm_fimd.c    |  3 +--
 drivers/gpu/drm/exynos/exynos_drm_vidi.c    | 20 ++++++++++---------
 drivers/gpu/drm/exynos/exynos_hdmi.c        | 21 +++++++++++++++++---
 11 files changed, 101 insertions(+), 69 deletions(-)

Comments

Inki Dae Aug. 4, 2015, 9:41 a.m. UTC | #1 
On 2015? 08? 04? 04:09, Gustavo Padovan wrote:
> From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> 
> This functions was just hiding the encoder and connector creation in
> a way that was less clean than if we get rid of it. For example,
> exynos_encoder ops had .create_connector() defined only because we were
> handing off the encoder and connector creation to
> exynos_drm_create_enc_conn(). Without this function we can directly call
> the create_connector function internally in the code, without the need of
> any vtable access.
> 
> It also does some refactoring in the code like creating a bind function
> for dpi devices.
> 
> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> ---
>  drivers/gpu/drm/exynos/exynos7_drm_decon.c  |  3 +--
>  drivers/gpu/drm/exynos/exynos_dp_core.c     | 20 ++++++++++++++++---
>  drivers/gpu/drm/exynos/exynos_drm_core.c    | 30 -----------------------------
>  drivers/gpu/drm/exynos/exynos_drm_dpi.c     | 26 +++++++++++++++++++++++--
>  drivers/gpu/drm/exynos/exynos_drm_drv.h     | 12 ++++++------
>  drivers/gpu/drm/exynos/exynos_drm_dsi.c     | 20 ++++++++++++-------
>  drivers/gpu/drm/exynos/exynos_drm_encoder.c | 11 +++++++----
>  drivers/gpu/drm/exynos/exynos_drm_encoder.h |  4 +++-
>  drivers/gpu/drm/exynos/exynos_drm_fimd.c    |  3 +--
>  drivers/gpu/drm/exynos/exynos_drm_vidi.c    | 20 ++++++++++---------
>  drivers/gpu/drm/exynos/exynos_hdmi.c        | 21 +++++++++++++++++---
>  11 files changed, 101 insertions(+), 69 deletions(-)
> 

[-- SNIP --]

> diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
> index 11bac50..f72ceeb 100644
> --- a/drivers/gpu/drm/exynos/exynos_hdmi.c
> +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
> @@ -44,6 +44,7 @@
>  
>  #include "exynos_drm_drv.h"
>  #include "exynos_drm_crtc.h"
> +#include "exynos_drm_encoder.h"
>  #include "exynos_mixer.h"
>  
>  #include <linux/gpio.h>
> @@ -1783,7 +1784,6 @@ static void hdmi_disable(struct exynos_drm_encoder *encoder)
>  }
>  
>  static struct exynos_drm_encoder_ops hdmi_encoder_ops = {
> -	.create_connector = hdmi_create_connector,
>  	.mode_fixup	= hdmi_mode_fixup,
>  	.mode_set	= hdmi_mode_set,
>  	.enable		= hdmi_enable,
> @@ -1917,11 +1917,26 @@ static int hdmi_bind(struct device *dev, struct device *master, void *data)
>  {
>  	struct drm_device *drm_dev = data;
>  	struct hdmi_context *hdata = dev_get_drvdata(dev);
> +	struct exynos_drm_encoder *exynos_encoder = &hdata->encoder;
> +	int ret;
>  
>  	hdata->drm_dev = drm_dev;
>  
> -	return exynos_drm_create_enc_conn(drm_dev, &hdata->encoder,
> -					  EXYNOS_DISPLAY_TYPE_HDMI);
> +	ret = exynos_drm_encoder_create(drm_dev, exynos_encoder,
> +					EXYNOS_DISPLAY_TYPE_HDMI);
> +	if (ret) {
> +		DRM_ERROR("failed to create encoder\n");
> +		return ret;
> +	}
> +
> +	hdmi_create_connector(exynos_encoder);

ret = hdmi_create_connector(exynos_encoder);

> +	if (ret) {
> +		DRM_ERROR("failed to create connector ret = %d\n", ret);
> +		drm_encoder_cleanup(&exynos_encoder->base);
> +		return ret;
> +	}
> +
> +	return 0;
>  }
>  
>  static void hdmi_unbind(struct device *dev, struct device *master, void *data)
> 

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diff mbox

Patch

diff --git a/drivers/gpu/drm/exynos/exynos7_drm_decon.c b/drivers/gpu/drm/exynos/exynos7_drm_decon.c
index 1b89e94..e1a2ce7 100644
--- a/drivers/gpu/drm/exynos/exynos7_drm_decon.c
+++ b/drivers/gpu/drm/exynos/exynos7_drm_decon.c
@@ -682,8 +682,7 @@  static int decon_bind(struct device *dev, struct device *master, void *data)
 	}
 
 	if (ctx->encoder)
-		exynos_drm_create_enc_conn(drm_dev, ctx->encoder,
-					   EXYNOS_DISPLAY_TYPE_LCD);
+		exynos_dpi_bind(drm_dev, ctx->encoder);
 
 	return 0;
 
diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
index 253f955..a4a902a 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_core.c
+++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
@@ -32,6 +32,7 @@ 
 #include <drm/drm_panel.h>
 
 #include "exynos_dp_core.h"
+#include "exynos_drm_encoder.h"
 
 #define ctx_from_connector(c)	container_of(c, struct exynos_dp_device, \
 					connector)
@@ -1104,7 +1105,6 @@  static void exynos_dp_disable(struct exynos_drm_encoder *encoder)
 }
 
 static struct exynos_drm_encoder_ops exynos_dp_encoder_ops = {
-	.create_connector = exynos_dp_create_connector,
 	.enable = exynos_dp_enable,
 	.disable = exynos_dp_disable,
 };
@@ -1185,6 +1185,7 @@  static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
 	struct exynos_dp_device *dp = dev_get_drvdata(dev);
 	struct platform_device *pdev = to_platform_device(dev);
 	struct drm_device *drm_dev = data;
+	struct exynos_drm_encoder *exynos_encoder = &dp->encoder;
 	struct resource *res;
 	unsigned int irq_flags;
 	int ret = 0;
@@ -1277,8 +1278,21 @@  static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
 
 	dp->drm_dev = drm_dev;
 
-	return exynos_drm_create_enc_conn(drm_dev, &dp->encoder,
-					  EXYNOS_DISPLAY_TYPE_LCD);
+	ret = exynos_drm_encoder_create(drm_dev, exynos_encoder,
+					EXYNOS_DISPLAY_TYPE_LCD);
+	if (ret) {
+		DRM_ERROR("failed to create encoder\n");
+		return ret;
+	}
+
+	ret = exynos_dp_create_connector(exynos_encoder);
+	if (ret) {
+		DRM_ERROR("failed to create connector ret = %d\n", ret);
+		drm_encoder_cleanup(&exynos_encoder->base);
+		return ret;
+	}
+
+	return 0;
 }
 
 static void exynos_dp_unbind(struct device *dev, struct device *master,
diff --git a/drivers/gpu/drm/exynos/exynos_drm_core.c b/drivers/gpu/drm/exynos/exynos_drm_core.c
index e386452..1f38a44 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_core.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_core.c
@@ -20,36 +20,6 @@ 
 
 static LIST_HEAD(exynos_drm_subdrv_list);
 
-int exynos_drm_create_enc_conn(struct drm_device *dev,
-			       struct exynos_drm_encoder *exynos_encoder,
-			       enum exynos_drm_output_type type)
-{
-	int ret;
-	unsigned long possible_crtcs = 0;
-
-	ret = exynos_drm_crtc_get_pipe_from_type(dev, type);
-	if (ret < 0)
-		return ret;
-
-	possible_crtcs |= 1 << ret;
-
-	/* create and initialize a encoder for this sub driver. */
-	ret = exynos_drm_encoder_create(dev, exynos_encoder, possible_crtcs);
-	if (ret) {
-		DRM_ERROR("failed to create encoder\n");
-		return ret;
-	}
-
-	ret = exynos_encoder->ops->create_connector(exynos_encoder);
-	if (ret) {
-		DRM_ERROR("failed to create connector ret = %d\n", ret);
-		drm_encoder_cleanup(&exynos_encoder->base);
-		return ret;
-	}
-
-	return 0;
-}
-
 int exynos_drm_subdrv_register(struct exynos_drm_subdrv *subdrv)
 {
 	if (!subdrv)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dpi.c b/drivers/gpu/drm/exynos/exynos_drm_dpi.c
index 60a3161..6850ce5 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dpi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dpi.c
@@ -20,7 +20,8 @@ 
 #include <video/of_videomode.h>
 #include <video/videomode.h>
 
-#include "exynos_drm_drv.h"
+#include "exynos_drm_encoder.h"
+#include "exynos_drm_crtc.h"
 
 struct exynos_dpi {
 	struct exynos_drm_encoder encoder;
@@ -151,7 +152,6 @@  static void exynos_dpi_disable(struct exynos_drm_encoder *encoder)
 }
 
 static struct exynos_drm_encoder_ops exynos_dpi_encoder_ops = {
-	.create_connector = exynos_dpi_create_connector,
 	.enable = exynos_dpi_enable,
 	.disable = exynos_dpi_disable,
 };
@@ -280,6 +280,28 @@  static int exynos_dpi_parse_dt(struct exynos_dpi *ctx)
 	return 0;
 }
 
+int exynos_dpi_bind(struct drm_device *dev,
+		    struct exynos_drm_encoder *exynos_encoder)
+{
+	int ret;
+
+	ret = exynos_drm_encoder_create(dev, exynos_encoder,
+					EXYNOS_DISPLAY_TYPE_LCD);
+	if (ret) {
+		DRM_ERROR("failed to create encoder\n");
+		return ret;
+	}
+
+	ret = exynos_dpi_create_connector(exynos_encoder);
+	if (ret) {
+		DRM_ERROR("failed to create connector ret = %d\n", ret);
+		drm_encoder_cleanup(&exynos_encoder->base);
+		return ret;
+	}
+
+	return 0;
+}
+
 struct exynos_drm_encoder *exynos_dpi_probe(struct device *dev)
 {
 	struct exynos_dpi *ctx;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
index 76ed6a1..a4977be 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
@@ -81,7 +81,6 @@  struct exynos_drm_plane {
  * Exynos DRM Encoder Structure.
  *	- this structure is common to analog tv, digital tv and lcd panel.
  *
- * @create_connector: initialize and register a new connector
  * @mode_fixup: fix mode data comparing to hw specific display mode.
  * @mode_set: convert drm_display_mode to hw specific display mode and
  *	      would be called by encoder->mode_set().
@@ -90,7 +89,6 @@  struct exynos_drm_plane {
  */
 struct exynos_drm_encoder;
 struct exynos_drm_encoder_ops {
-	int (*create_connector)(struct exynos_drm_encoder *encoder);
 	void (*mode_fixup)(struct exynos_drm_encoder *encoder,
 				struct drm_connector *connector,
 				const struct drm_display_mode *mode,
@@ -259,6 +257,7 @@  void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file);
 #ifdef CONFIG_DRM_EXYNOS_DPI
 struct exynos_drm_encoder *exynos_dpi_probe(struct device *dev);
 int exynos_dpi_remove(struct exynos_drm_encoder *encoder);
+int exynos_dpi_bind(struct drm_device *dev, struct exynos_drm_encoder *encoder);
 #else
 static inline struct exynos_drm_encoder *
 exynos_dpi_probe(struct device *dev) { return NULL; }
@@ -266,12 +265,13 @@  static inline int exynos_dpi_remove(struct exynos_drm_encoder *encoder)
 {
 	return 0;
 }
+static inline int exynos_dpi_bind(struct drm_device *dev,
+				  struct exynos_drm_encoder *encoder)
+{
+	return 0;
+}
 #endif
 
-/* This function creates a encoder and a connector, and initializes them. */
-int exynos_drm_create_enc_conn(struct drm_device *dev,
-			       struct exynos_drm_encoder *encoder,
-			       enum exynos_drm_output_type type);
 
 extern struct platform_driver fimd_driver;
 extern struct platform_driver exynos5433_decon_driver;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index fef3a61..d791ad4 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -30,6 +30,7 @@ 
 #include <video/videomode.h>
 
 #include "exynos_drm_crtc.h"
+#include "exynos_drm_encoder.h"
 #include "exynos_drm_drv.h"
 
 /* returns true iff both arguments logically differs */
@@ -1678,7 +1679,6 @@  static void exynos_dsi_mode_set(struct exynos_drm_encoder *encoder,
 }
 
 static struct exynos_drm_encoder_ops exynos_dsi_encoder_ops = {
-	.create_connector = exynos_dsi_create_connector,
 	.mode_set = exynos_dsi_mode_set,
 	.enable = exynos_dsi_enable,
 	.disable = exynos_dsi_disable,
@@ -1804,17 +1804,23 @@  end:
 static int exynos_dsi_bind(struct device *dev, struct device *master,
 				void *data)
 {
-	struct exynos_drm_encoder *encoder = dev_get_drvdata(dev);
-	struct exynos_dsi *dsi = encoder_to_dsi(encoder);
+	struct exynos_drm_encoder *exynos_encoder = dev_get_drvdata(dev);
+	struct exynos_dsi *dsi = encoder_to_dsi(exynos_encoder);
 	struct drm_device *drm_dev = data;
 	struct drm_bridge *bridge;
 	int ret;
 
-	ret = exynos_drm_create_enc_conn(drm_dev, encoder,
-					 EXYNOS_DISPLAY_TYPE_LCD);
+	ret = exynos_drm_encoder_create(drm_dev, exynos_encoder,
+					EXYNOS_DISPLAY_TYPE_LCD);
+	if (ret) {
+		DRM_ERROR("failed to create encoder\n");
+		return ret;
+	}
+
+	ret = exynos_dsi_create_connector(exynos_encoder);
 	if (ret) {
-		DRM_ERROR("Encoder create [%d] failed with %d\n",
-			  EXYNOS_DISPLAY_TYPE_LCD, ret);
+		DRM_ERROR("failed to create connector ret = %d\n", ret);
+		drm_encoder_cleanup(&exynos_encoder->base);
 		return ret;
 	}
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c
index ce7b97e..4ed360b 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c
@@ -17,6 +17,7 @@ 
 
 #include "exynos_drm_drv.h"
 #include "exynos_drm_encoder.h"
+#include "exynos_drm_crtc.h"
 
 static bool
 exynos_drm_encoder_mode_fixup(struct drm_encoder *encoder,
@@ -92,15 +93,17 @@  void exynos_drm_encoder_setup(struct drm_device *dev)
 
 int exynos_drm_encoder_create(struct drm_device *dev,
 			      struct exynos_drm_encoder *exynos_encoder,
-			      unsigned long possible_crtcs)
+			      enum exynos_drm_output_type type)
 {
 	struct drm_encoder *encoder;
+	int pipe;
 
-	if (!possible_crtcs)
-		return -EINVAL;
+	pipe = exynos_drm_crtc_get_pipe_from_type(dev, type);
+	if (pipe < 0)
+		return pipe;
 
 	encoder = &exynos_encoder->base;
-	encoder->possible_crtcs = possible_crtcs;
+	encoder->possible_crtcs = 1 << pipe;
 
 	DRM_DEBUG_KMS("possible_crtcs = 0x%x\n", encoder->possible_crtcs);
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.h b/drivers/gpu/drm/exynos/exynos_drm_encoder.h
index 005f583..e998b82 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_encoder.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.h
@@ -14,8 +14,10 @@ 
 #ifndef _EXYNOS_DRM_ENCODER_H_
 #define _EXYNOS_DRM_ENCODER_H_
 
+#include "exynos_drm_drv.h"
+
 void exynos_drm_encoder_setup(struct drm_device *dev);
 int exynos_drm_encoder_create(struct drm_device *dev, struct exynos_drm_encoder
-			      *encoder, unsigned long possible_crtcs);
+			      *encoder, enum exynos_drm_output_type type);
 
 #endif
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index 9edd11d..6c0d3de 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -946,8 +946,7 @@  static int fimd_bind(struct device *dev, struct device *master, void *data)
 		return PTR_ERR(ctx->crtc);
 
 	if (ctx->encoder)
-		exynos_drm_create_enc_conn(drm_dev, ctx->encoder,
-					   EXYNOS_DISPLAY_TYPE_LCD);
+		exynos_dpi_bind(drm_dev, ctx->encoder);
 
 	if (is_drm_iommu_supported(drm_dev))
 		fimd_clear_channels(ctx->crtc);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
index d7f9501..9b64c77 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
@@ -389,15 +389,11 @@  static int vidi_create_connector(struct exynos_drm_encoder *exynos_encoder)
 	return 0;
 }
 
-
-static struct exynos_drm_encoder_ops vidi_encoder_ops = {
-	.create_connector = vidi_create_connector,
-};
-
 static int vidi_bind(struct device *dev, struct device *master, void *data)
 {
 	struct vidi_context *ctx = dev_get_drvdata(dev);
 	struct drm_device *drm_dev = data;
+	struct exynos_drm_encoder *exynos_encoder = &ctx->encoder;
 	struct exynos_drm_plane *exynos_plane;
 	enum drm_plane_type type;
 	unsigned int zpos;
@@ -423,10 +419,17 @@  static int vidi_bind(struct device *dev, struct device *master, void *data)
 		return PTR_ERR(ctx->crtc);
 	}
 
-	ret = exynos_drm_create_enc_conn(drm_dev, &ctx->encoder,
-					 EXYNOS_DISPLAY_TYPE_VIDI);
+	ret = exynos_drm_encoder_create(drm_dev, exynos_encoder,
+					EXYNOS_DISPLAY_TYPE_VIDI);
+	if (ret) {
+		DRM_ERROR("failed to create encoder\n");
+		return ret;
+	}
+
+	ret = vidi_create_connector(exynos_encoder);
 	if (ret) {
-		ctx->crtc->base.funcs->destroy(&ctx->crtc->base);
+		DRM_ERROR("failed to create connector ret = %d\n", ret);
+		drm_encoder_cleanup(&exynos_encoder->base);
 		return ret;
 	}
 
@@ -452,7 +455,6 @@  static int vidi_probe(struct platform_device *pdev)
 	if (!ctx)
 		return -ENOMEM;
 
-	ctx->encoder.ops = &vidi_encoder_ops;
 	ctx->default_win = 0;
 	ctx->pdev = pdev;
 
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 11bac50..f72ceeb 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -44,6 +44,7 @@ 
 
 #include "exynos_drm_drv.h"
 #include "exynos_drm_crtc.h"
+#include "exynos_drm_encoder.h"
 #include "exynos_mixer.h"
 
 #include <linux/gpio.h>
@@ -1783,7 +1784,6 @@  static void hdmi_disable(struct exynos_drm_encoder *encoder)
 }
 
 static struct exynos_drm_encoder_ops hdmi_encoder_ops = {
-	.create_connector = hdmi_create_connector,
 	.mode_fixup	= hdmi_mode_fixup,
 	.mode_set	= hdmi_mode_set,
 	.enable		= hdmi_enable,
@@ -1917,11 +1917,26 @@  static int hdmi_bind(struct device *dev, struct device *master, void *data)
 {
 	struct drm_device *drm_dev = data;
 	struct hdmi_context *hdata = dev_get_drvdata(dev);
+	struct exynos_drm_encoder *exynos_encoder = &hdata->encoder;
+	int ret;
 
 	hdata->drm_dev = drm_dev;
 
-	return exynos_drm_create_enc_conn(drm_dev, &hdata->encoder,
-					  EXYNOS_DISPLAY_TYPE_HDMI);
+	ret = exynos_drm_encoder_create(drm_dev, exynos_encoder,
+					EXYNOS_DISPLAY_TYPE_HDMI);
+	if (ret) {
+		DRM_ERROR("failed to create encoder\n");
+		return ret;
+	}
+
+	hdmi_create_connector(exynos_encoder);
+	if (ret) {
+		DRM_ERROR("failed to create connector ret = %d\n", ret);
+		drm_encoder_cleanup(&exynos_encoder->base);
+		return ret;
+	}
+
+	return 0;
 }
 
 static void hdmi_unbind(struct device *dev, struct device *master, void *data)