diff mbox

[v3,3/3] drm: sti: rework init sequence

Message ID 1466514580-15194-4-git-send-email-benjamin.gaignard@linaro.org (mailing list archive)
State New, archived
Headers show

Commit Message

Benjamin Gaignard June 21, 2016, 1:09 p.m. UTC
Use drm_dev_alloc() and drm_dev_register() instead of .load()
To simplify init sequence only create fbdev when requested
in output_poll_changed().

version 2:
remove call to drm_connector_unregister_all() and
drm_dev_set_unique()

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
---
 drivers/gpu/drm/sti/sti_drv.c  | 137 +++++++++++++++++++++++++++++------------
 drivers/gpu/drm/sti/sti_drv.h  |   1 +
 drivers/gpu/drm/sti/sti_dvo.c  |   7 ---
 drivers/gpu/drm/sti/sti_hda.c  |   8 +--
 drivers/gpu/drm/sti/sti_hdmi.c |  21 +------
 5 files changed, 100 insertions(+), 74 deletions(-)

Comments

Daniel Vetter June 21, 2016, 7:32 p.m. UTC | #1
On Tue, Jun 21, 2016 at 03:09:40PM +0200, Benjamin Gaignard wrote:
> Use drm_dev_alloc() and drm_dev_register() instead of .load()
> To simplify init sequence only create fbdev when requested
> in output_poll_changed().
> 
> version 2:
> remove call to drm_connector_unregister_all() and
> drm_dev_set_unique()
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
> ---
>  drivers/gpu/drm/sti/sti_drv.c  | 137 +++++++++++++++++++++++++++++------------
>  drivers/gpu/drm/sti/sti_drv.h  |   1 +
>  drivers/gpu/drm/sti/sti_dvo.c  |   7 ---
>  drivers/gpu/drm/sti/sti_hda.c  |   8 +--
>  drivers/gpu/drm/sti/sti_hdmi.c |  21 +------
>  5 files changed, 100 insertions(+), 74 deletions(-)
> 
> diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c
> index 26aa85d..96bd3d0 100644
> --- a/drivers/gpu/drm/sti/sti_drv.c
> +++ b/drivers/gpu/drm/sti/sti_drv.c
> @@ -226,8 +226,28 @@ static int sti_atomic_commit(struct drm_device *drm,
>  	return 0;
>  }
>  
> +static void sti_output_poll_changed(struct drm_device *ddev)
> +{
> +	struct sti_private *private = ddev->dev_private;
> +
> +	if (!ddev->mode_config.num_connector)
> +		return;
> +
> +	if (private->fbdev) {
> +		drm_fbdev_cma_hotplug_event(private->fbdev);
> +		return;
> +	}
> +
> +	private->fbdev = drm_fbdev_cma_init(ddev, 32,
> +					    ddev->mode_config.num_crtc,
> +					    ddev->mode_config.num_connector);
> +	if (IS_ERR(private->fbdev))
> +		private->fbdev = NULL;
> +}

This creates another copy of the copy-pasted deferred fbdev init code.
Thierry Redding is working to clean that up, but since you've just created
more work for him here I think you've volunteered to review Thierry's
patches ;-)

All three patches merged to drm-misc, thanks.
-Daniel

> +
>  static const struct drm_mode_config_funcs sti_mode_config_funcs = {
>  	.fb_create = drm_fb_cma_create,
> +	.output_poll_changed = sti_output_poll_changed,
>  	.atomic_check = drm_atomic_helper_check,
>  	.atomic_commit = sti_atomic_commit,
>  };
> @@ -248,44 +268,6 @@ static void sti_mode_config_init(struct drm_device *dev)
>  	dev->mode_config.funcs = &sti_mode_config_funcs;
>  }
>  
> -static int sti_load(struct drm_device *dev, unsigned long flags)
> -{
> -	struct sti_private *private;
> -	int ret;
> -
> -	private = kzalloc(sizeof(*private), GFP_KERNEL);
> -	if (!private) {
> -		DRM_ERROR("Failed to allocate private\n");
> -		return -ENOMEM;
> -	}
> -	dev->dev_private = (void *)private;
> -	private->drm_dev = dev;
> -
> -	mutex_init(&private->commit.lock);
> -	INIT_WORK(&private->commit.work, sti_atomic_work);
> -
> -	drm_mode_config_init(dev);
> -	drm_kms_helper_poll_init(dev);
> -
> -	sti_mode_config_init(dev);
> -
> -	ret = component_bind_all(dev->dev, dev);
> -	if (ret) {
> -		drm_kms_helper_poll_fini(dev);
> -		drm_mode_config_cleanup(dev);
> -		kfree(private);
> -		return ret;
> -	}
> -
> -	drm_mode_config_reset(dev);
> -
> -	drm_fbdev_cma_init(dev, 32,
> -			   dev->mode_config.num_crtc,
> -			   dev->mode_config.num_connector);
> -
> -	return 0;
> -}
> -
>  static const struct file_operations sti_driver_fops = {
>  	.owner = THIS_MODULE,
>  	.open = drm_open,
> @@ -302,7 +284,6 @@ static const struct file_operations sti_driver_fops = {
>  static struct drm_driver sti_driver = {
>  	.driver_features = DRIVER_HAVE_IRQ | DRIVER_MODESET |
>  	    DRIVER_GEM | DRIVER_PRIME | DRIVER_ATOMIC,
> -	.load = sti_load,
>  	.gem_free_object_unlocked = drm_gem_cma_free_object,
>  	.gem_vm_ops = &drm_gem_cma_vm_ops,
>  	.dumb_create = drm_gem_cma_dumb_create,
> @@ -339,14 +320,88 @@ static int compare_of(struct device *dev, void *data)
>  	return dev->of_node == data;
>  }
>  
> +static int sti_init(struct drm_device *ddev)
> +{
> +	struct sti_private *private;
> +
> +	private = kzalloc(sizeof(*private), GFP_KERNEL);
> +	if (!private)
> +		return -ENOMEM;
> +
> +	ddev->dev_private = (void *)private;
> +	dev_set_drvdata(ddev->dev, ddev);
> +	private->drm_dev = ddev;
> +
> +	mutex_init(&private->commit.lock);
> +	INIT_WORK(&private->commit.work, sti_atomic_work);
> +
> +	drm_mode_config_init(ddev);
> +
> +	sti_mode_config_init(ddev);
> +
> +	drm_kms_helper_poll_init(ddev);
> +
> +	return 0;
> +}
> +
> +static void sti_cleanup(struct drm_device *ddev)
> +{
> +	struct sti_private *private = ddev->dev_private;
> +
> +	if (private->fbdev) {
> +		drm_fbdev_cma_fini(private->fbdev);
> +		private->fbdev = NULL;
> +	}
> +
> +	drm_kms_helper_poll_fini(ddev);
> +	drm_vblank_cleanup(ddev);
> +	kfree(private);
> +	ddev->dev_private = NULL;
> +}
> +
>  static int sti_bind(struct device *dev)
>  {
> -	return drm_platform_init(&sti_driver, to_platform_device(dev));
> +	struct drm_device *ddev;
> +	int ret;
> +
> +	ddev = drm_dev_alloc(&sti_driver, dev);
> +	if (!ddev)
> +		return -ENOMEM;
> +
> +	ddev->platformdev = to_platform_device(dev);
> +
> +	ret = sti_init(ddev);
> +	if (ret)
> +		goto err_drm_dev_unref;
> +
> +	ret = component_bind_all(ddev->dev, ddev);
> +	if (ret)
> +		goto err_cleanup;
> +
> +	ret = drm_dev_register(ddev, 0);
> +	if (ret)
> +		goto err_register;
> +
> +	drm_mode_config_reset(ddev);
> +
> +	return 0;
> +
> +err_register:
> +	drm_mode_config_cleanup(ddev);
> +err_cleanup:
> +	sti_cleanup(ddev);
> +err_drm_dev_unref:
> +	drm_dev_unref(ddev);
> +	return ret;
>  }
>  
>  static void sti_unbind(struct device *dev)
>  {
> -	drm_put_dev(dev_get_drvdata(dev));
> +	struct drm_device *ddev = dev_get_drvdata(dev);
> +
> +	drm_dev_unregister(ddev);
> +	sti_cleanup(ddev);
> +	drm_dev_unref(ddev);
>  }
>  
>  static const struct component_master_ops sti_ops = {
> diff --git a/drivers/gpu/drm/sti/sti_drv.h b/drivers/gpu/drm/sti/sti_drv.h
> index 30ddc20..78ebe5e 100644
> --- a/drivers/gpu/drm/sti/sti_drv.h
> +++ b/drivers/gpu/drm/sti/sti_drv.h
> @@ -24,6 +24,7 @@ struct sti_private {
>  	struct sti_compositor *compo;
>  	struct drm_property *plane_zorder_property;
>  	struct drm_device *drm_dev;
> +	struct drm_fbdev_cma *fbdev;
>  
>  	struct {
>  		struct drm_atomic_state *state;
> diff --git a/drivers/gpu/drm/sti/sti_dvo.c b/drivers/gpu/drm/sti/sti_dvo.c
> index 8a2b48f..ec31080 100644
> --- a/drivers/gpu/drm/sti/sti_dvo.c
> +++ b/drivers/gpu/drm/sti/sti_dvo.c
> @@ -497,10 +497,6 @@ static int sti_dvo_bind(struct device *dev, struct device *master, void *data)
>  	drm_connector_helper_add(drm_connector,
>  				 &sti_dvo_connector_helper_funcs);
>  
> -	err = drm_connector_register(drm_connector);
> -	if (err)
> -		goto err_connector;
> -
>  	err = drm_mode_connector_attach_encoder(drm_connector, encoder);
>  	if (err) {
>  		DRM_ERROR("Failed to attach a connector to a encoder\n");
> @@ -510,10 +506,7 @@ static int sti_dvo_bind(struct device *dev, struct device *master, void *data)
>  	return 0;
>  
>  err_sysfs:
> -	drm_connector_unregister(drm_connector);
> -err_connector:
>  	drm_bridge_remove(bridge);
> -	drm_connector_cleanup(drm_connector);
>  	return -EINVAL;
>  }
>  
> diff --git a/drivers/gpu/drm/sti/sti_hda.c b/drivers/gpu/drm/sti/sti_hda.c
> index e31d52d..8505569 100644
> --- a/drivers/gpu/drm/sti/sti_hda.c
> +++ b/drivers/gpu/drm/sti/sti_hda.c
> @@ -761,10 +761,6 @@ static int sti_hda_bind(struct device *dev, struct device *master, void *data)
>  	drm_connector_helper_add(drm_connector,
>  			&sti_hda_connector_helper_funcs);
>  
> -	err = drm_connector_register(drm_connector);
> -	if (err)
> -		goto err_connector;
> -
>  	err = drm_mode_connector_attach_encoder(drm_connector, encoder);
>  	if (err) {
>  		DRM_ERROR("Failed to attach a connector to a encoder\n");
> @@ -777,9 +773,7 @@ static int sti_hda_bind(struct device *dev, struct device *master, void *data)
>  	return 0;
>  
>  err_sysfs:
> -	drm_connector_unregister(drm_connector);
> -err_connector:
> -	drm_connector_cleanup(drm_connector);
> +	drm_bridge_remove(bridge);
>  	return -EINVAL;
>  }
>  
> diff --git a/drivers/gpu/drm/sti/sti_hdmi.c b/drivers/gpu/drm/sti/sti_hdmi.c
> index 9d9c2c5..8d1402b 100644
> --- a/drivers/gpu/drm/sti/sti_hdmi.c
> +++ b/drivers/gpu/drm/sti/sti_hdmi.c
> @@ -915,16 +915,6 @@ sti_hdmi_connector_detect(struct drm_connector *connector, bool force)
>  	return connector_status_disconnected;
>  }
>  
> -static void sti_hdmi_connector_destroy(struct drm_connector *connector)
> -{
> -	struct sti_hdmi_connector *hdmi_connector
> -		= to_sti_hdmi_connector(connector);
> -
> -	drm_connector_unregister(connector);
> -	drm_connector_cleanup(connector);
> -	kfree(hdmi_connector);
> -}
> -
>  static void sti_hdmi_connector_init_property(struct drm_device *drm_dev,
>  					     struct drm_connector *connector)
>  {
> @@ -1024,7 +1014,7 @@ static int sti_hdmi_late_register(struct drm_connector *connector)
>  static const struct drm_connector_funcs sti_hdmi_connector_funcs = {
>  	.fill_modes = drm_helper_probe_single_connector_modes,
>  	.detect = sti_hdmi_connector_detect,
> -	.destroy = sti_hdmi_connector_destroy,
> +	.destroy = drm_connector_cleanup,
>  	.reset = drm_atomic_helper_connector_reset,
>  	.set_property = drm_atomic_helper_connector_set_property,
>  	.atomic_set_property = sti_hdmi_connector_set_property,
> @@ -1092,10 +1082,6 @@ static int sti_hdmi_bind(struct device *dev, struct device *master, void *data)
>  	/* initialise property */
>  	sti_hdmi_connector_init_property(drm_dev, drm_connector);
>  
> -	err = drm_connector_register(drm_connector);
> -	if (err)
> -		goto err_connector;
> -
>  	err = drm_mode_connector_attach_encoder(drm_connector, encoder);
>  	if (err) {
>  		DRM_ERROR("Failed to attach a connector to a encoder\n");
> @@ -1108,10 +1094,7 @@ static int sti_hdmi_bind(struct device *dev, struct device *master, void *data)
>  	return 0;
>  
>  err_sysfs:
> -	drm_connector_unregister(drm_connector);
> -err_connector:
> -	drm_connector_cleanup(drm_connector);
> -
> +	drm_bridge_remove(bridge);
>  	return -EINVAL;
>  }
>  
> -- 
> 1.9.1
>
diff mbox

Patch

diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c
index 26aa85d..96bd3d0 100644
--- a/drivers/gpu/drm/sti/sti_drv.c
+++ b/drivers/gpu/drm/sti/sti_drv.c
@@ -226,8 +226,28 @@  static int sti_atomic_commit(struct drm_device *drm,
 	return 0;
 }
 
+static void sti_output_poll_changed(struct drm_device *ddev)
+{
+	struct sti_private *private = ddev->dev_private;
+
+	if (!ddev->mode_config.num_connector)
+		return;
+
+	if (private->fbdev) {
+		drm_fbdev_cma_hotplug_event(private->fbdev);
+		return;
+	}
+
+	private->fbdev = drm_fbdev_cma_init(ddev, 32,
+					    ddev->mode_config.num_crtc,
+					    ddev->mode_config.num_connector);
+	if (IS_ERR(private->fbdev))
+		private->fbdev = NULL;
+}
+
 static const struct drm_mode_config_funcs sti_mode_config_funcs = {
 	.fb_create = drm_fb_cma_create,
+	.output_poll_changed = sti_output_poll_changed,
 	.atomic_check = drm_atomic_helper_check,
 	.atomic_commit = sti_atomic_commit,
 };
@@ -248,44 +268,6 @@  static void sti_mode_config_init(struct drm_device *dev)
 	dev->mode_config.funcs = &sti_mode_config_funcs;
 }
 
-static int sti_load(struct drm_device *dev, unsigned long flags)
-{
-	struct sti_private *private;
-	int ret;
-
-	private = kzalloc(sizeof(*private), GFP_KERNEL);
-	if (!private) {
-		DRM_ERROR("Failed to allocate private\n");
-		return -ENOMEM;
-	}
-	dev->dev_private = (void *)private;
-	private->drm_dev = dev;
-
-	mutex_init(&private->commit.lock);
-	INIT_WORK(&private->commit.work, sti_atomic_work);
-
-	drm_mode_config_init(dev);
-	drm_kms_helper_poll_init(dev);
-
-	sti_mode_config_init(dev);
-
-	ret = component_bind_all(dev->dev, dev);
-	if (ret) {
-		drm_kms_helper_poll_fini(dev);
-		drm_mode_config_cleanup(dev);
-		kfree(private);
-		return ret;
-	}
-
-	drm_mode_config_reset(dev);
-
-	drm_fbdev_cma_init(dev, 32,
-			   dev->mode_config.num_crtc,
-			   dev->mode_config.num_connector);
-
-	return 0;
-}
-
 static const struct file_operations sti_driver_fops = {
 	.owner = THIS_MODULE,
 	.open = drm_open,
@@ -302,7 +284,6 @@  static const struct file_operations sti_driver_fops = {
 static struct drm_driver sti_driver = {
 	.driver_features = DRIVER_HAVE_IRQ | DRIVER_MODESET |
 	    DRIVER_GEM | DRIVER_PRIME | DRIVER_ATOMIC,
-	.load = sti_load,
 	.gem_free_object_unlocked = drm_gem_cma_free_object,
 	.gem_vm_ops = &drm_gem_cma_vm_ops,
 	.dumb_create = drm_gem_cma_dumb_create,
@@ -339,14 +320,88 @@  static int compare_of(struct device *dev, void *data)
 	return dev->of_node == data;
 }
 
+static int sti_init(struct drm_device *ddev)
+{
+	struct sti_private *private;
+
+	private = kzalloc(sizeof(*private), GFP_KERNEL);
+	if (!private)
+		return -ENOMEM;
+
+	ddev->dev_private = (void *)private;
+	dev_set_drvdata(ddev->dev, ddev);
+	private->drm_dev = ddev;
+
+	mutex_init(&private->commit.lock);
+	INIT_WORK(&private->commit.work, sti_atomic_work);
+
+	drm_mode_config_init(ddev);
+
+	sti_mode_config_init(ddev);
+
+	drm_kms_helper_poll_init(ddev);
+
+	return 0;
+}
+
+static void sti_cleanup(struct drm_device *ddev)
+{
+	struct sti_private *private = ddev->dev_private;
+
+	if (private->fbdev) {
+		drm_fbdev_cma_fini(private->fbdev);
+		private->fbdev = NULL;
+	}
+
+	drm_kms_helper_poll_fini(ddev);
+	drm_vblank_cleanup(ddev);
+	kfree(private);
+	ddev->dev_private = NULL;
+}
+
 static int sti_bind(struct device *dev)
 {
-	return drm_platform_init(&sti_driver, to_platform_device(dev));
+	struct drm_device *ddev;
+	int ret;
+
+	ddev = drm_dev_alloc(&sti_driver, dev);
+	if (!ddev)
+		return -ENOMEM;
+
+	ddev->platformdev = to_platform_device(dev);
+
+	ret = sti_init(ddev);
+	if (ret)
+		goto err_drm_dev_unref;
+
+	ret = component_bind_all(ddev->dev, ddev);
+	if (ret)
+		goto err_cleanup;
+
+	ret = drm_dev_register(ddev, 0);
+	if (ret)
+		goto err_register;
+
+	drm_mode_config_reset(ddev);
+
+	return 0;
+
+err_register:
+	drm_mode_config_cleanup(ddev);
+err_cleanup:
+	sti_cleanup(ddev);
+err_drm_dev_unref:
+	drm_dev_unref(ddev);
+	return ret;
 }
 
 static void sti_unbind(struct device *dev)
 {
-	drm_put_dev(dev_get_drvdata(dev));
+	struct drm_device *ddev = dev_get_drvdata(dev);
+
+	drm_dev_unregister(ddev);
+	sti_cleanup(ddev);
+	drm_dev_unref(ddev);
 }
 
 static const struct component_master_ops sti_ops = {
diff --git a/drivers/gpu/drm/sti/sti_drv.h b/drivers/gpu/drm/sti/sti_drv.h
index 30ddc20..78ebe5e 100644
--- a/drivers/gpu/drm/sti/sti_drv.h
+++ b/drivers/gpu/drm/sti/sti_drv.h
@@ -24,6 +24,7 @@  struct sti_private {
 	struct sti_compositor *compo;
 	struct drm_property *plane_zorder_property;
 	struct drm_device *drm_dev;
+	struct drm_fbdev_cma *fbdev;
 
 	struct {
 		struct drm_atomic_state *state;
diff --git a/drivers/gpu/drm/sti/sti_dvo.c b/drivers/gpu/drm/sti/sti_dvo.c
index 8a2b48f..ec31080 100644
--- a/drivers/gpu/drm/sti/sti_dvo.c
+++ b/drivers/gpu/drm/sti/sti_dvo.c
@@ -497,10 +497,6 @@  static int sti_dvo_bind(struct device *dev, struct device *master, void *data)
 	drm_connector_helper_add(drm_connector,
 				 &sti_dvo_connector_helper_funcs);
 
-	err = drm_connector_register(drm_connector);
-	if (err)
-		goto err_connector;
-
 	err = drm_mode_connector_attach_encoder(drm_connector, encoder);
 	if (err) {
 		DRM_ERROR("Failed to attach a connector to a encoder\n");
@@ -510,10 +506,7 @@  static int sti_dvo_bind(struct device *dev, struct device *master, void *data)
 	return 0;
 
 err_sysfs:
-	drm_connector_unregister(drm_connector);
-err_connector:
 	drm_bridge_remove(bridge);
-	drm_connector_cleanup(drm_connector);
 	return -EINVAL;
 }
 
diff --git a/drivers/gpu/drm/sti/sti_hda.c b/drivers/gpu/drm/sti/sti_hda.c
index e31d52d..8505569 100644
--- a/drivers/gpu/drm/sti/sti_hda.c
+++ b/drivers/gpu/drm/sti/sti_hda.c
@@ -761,10 +761,6 @@  static int sti_hda_bind(struct device *dev, struct device *master, void *data)
 	drm_connector_helper_add(drm_connector,
 			&sti_hda_connector_helper_funcs);
 
-	err = drm_connector_register(drm_connector);
-	if (err)
-		goto err_connector;
-
 	err = drm_mode_connector_attach_encoder(drm_connector, encoder);
 	if (err) {
 		DRM_ERROR("Failed to attach a connector to a encoder\n");
@@ -777,9 +773,7 @@  static int sti_hda_bind(struct device *dev, struct device *master, void *data)
 	return 0;
 
 err_sysfs:
-	drm_connector_unregister(drm_connector);
-err_connector:
-	drm_connector_cleanup(drm_connector);
+	drm_bridge_remove(bridge);
 	return -EINVAL;
 }
 
diff --git a/drivers/gpu/drm/sti/sti_hdmi.c b/drivers/gpu/drm/sti/sti_hdmi.c
index 9d9c2c5..8d1402b 100644
--- a/drivers/gpu/drm/sti/sti_hdmi.c
+++ b/drivers/gpu/drm/sti/sti_hdmi.c
@@ -915,16 +915,6 @@  sti_hdmi_connector_detect(struct drm_connector *connector, bool force)
 	return connector_status_disconnected;
 }
 
-static void sti_hdmi_connector_destroy(struct drm_connector *connector)
-{
-	struct sti_hdmi_connector *hdmi_connector
-		= to_sti_hdmi_connector(connector);
-
-	drm_connector_unregister(connector);
-	drm_connector_cleanup(connector);
-	kfree(hdmi_connector);
-}
-
 static void sti_hdmi_connector_init_property(struct drm_device *drm_dev,
 					     struct drm_connector *connector)
 {
@@ -1024,7 +1014,7 @@  static int sti_hdmi_late_register(struct drm_connector *connector)
 static const struct drm_connector_funcs sti_hdmi_connector_funcs = {
 	.fill_modes = drm_helper_probe_single_connector_modes,
 	.detect = sti_hdmi_connector_detect,
-	.destroy = sti_hdmi_connector_destroy,
+	.destroy = drm_connector_cleanup,
 	.reset = drm_atomic_helper_connector_reset,
 	.set_property = drm_atomic_helper_connector_set_property,
 	.atomic_set_property = sti_hdmi_connector_set_property,
@@ -1092,10 +1082,6 @@  static int sti_hdmi_bind(struct device *dev, struct device *master, void *data)
 	/* initialise property */
 	sti_hdmi_connector_init_property(drm_dev, drm_connector);
 
-	err = drm_connector_register(drm_connector);
-	if (err)
-		goto err_connector;
-
 	err = drm_mode_connector_attach_encoder(drm_connector, encoder);
 	if (err) {
 		DRM_ERROR("Failed to attach a connector to a encoder\n");
@@ -1108,10 +1094,7 @@  static int sti_hdmi_bind(struct device *dev, struct device *master, void *data)
 	return 0;
 
 err_sysfs:
-	drm_connector_unregister(drm_connector);
-err_connector:
-	drm_connector_cleanup(drm_connector);
-
+	drm_bridge_remove(bridge);
 	return -EINVAL;
 }