Re: [PATCH 15/22] drm/tilcdc: Use drm_fb_cma_fbdev_init/fini()

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On 11/04/17 15:04, Noralf Trønnes wrote:
> Use drm_fb_cma_fbdev_init() and drm_fb_cma_fbdev_fini() which relies on
> the fact that drm_device holds a pointer to the drm_fb_helper structure.
> This means that the driver doesn't have to keep track of that.
> Also use the drm_fb_helper functions directly.
> 
> Cc: Jyri Sarha <jsarha@xxxxxx>
> Cc: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
> Signed-off-by: Noralf Trønnes <noralf@xxxxxxxxxxx>

Acked-by: Jyri Sarha <jsarha@xxxxxx>

Let me know if you want me to pick this to my next tilcdc pull request!

Thanks,
Jyri

> ---
>  drivers/gpu/drm/tilcdc/tilcdc_drv.c | 26 +++++---------------------
>  drivers/gpu/drm/tilcdc/tilcdc_drv.h |  2 --
>  2 files changed, 5 insertions(+), 23 deletions(-)
> 
> diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> index 72ce063aa0d8..091b1025898e 100644
> --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> @@ -69,12 +69,6 @@ static struct drm_framebuffer *tilcdc_fb_create(struct drm_device *dev,
>  	return drm_gem_fb_create(dev, file_priv, mode_cmd);
>  }
>  
> -static void tilcdc_fb_output_poll_changed(struct drm_device *dev)
> -{
> -	struct tilcdc_drm_private *priv = dev->dev_private;
> -	drm_fbdev_cma_hotplug_event(priv->fbdev);
> -}
> -
>  static int tilcdc_atomic_check(struct drm_device *dev,
>  			       struct drm_atomic_state *state)
>  {
> @@ -146,7 +140,7 @@ static int tilcdc_commit(struct drm_device *dev,
>  
>  static const struct drm_mode_config_funcs mode_config_funcs = {
>  	.fb_create = tilcdc_fb_create,
> -	.output_poll_changed = tilcdc_fb_output_poll_changed,
> +	.output_poll_changed = drm_fb_helper_output_poll_changed,
>  	.atomic_check = tilcdc_atomic_check,
>  	.atomic_commit = tilcdc_commit,
>  };
> @@ -198,8 +192,7 @@ static void tilcdc_fini(struct drm_device *dev)
>  
>  	drm_kms_helper_poll_fini(dev);
>  
> -	if (priv->fbdev)
> -		drm_fbdev_cma_fini(priv->fbdev);
> +	drm_fb_cma_fbdev_fini(dev);
>  
>  	drm_irq_uninstall(dev);
>  	drm_mode_config_cleanup(dev);
> @@ -405,12 +398,9 @@ static int tilcdc_init(struct drm_driver *ddrv, struct device *dev)
>  
>  	drm_mode_config_reset(ddev);
>  
> -	priv->fbdev = drm_fbdev_cma_init(ddev, bpp,
> -					 ddev->mode_config.num_connector);
> -	if (IS_ERR(priv->fbdev)) {
> -		ret = PTR_ERR(priv->fbdev);
> +	ret = drm_fb_cma_fbdev_init(ddev, bpp, 0);
> +	if (ret)
>  		goto init_failed;
> -	}
>  
>  	drm_kms_helper_poll_init(ddev);
>  
> @@ -427,12 +417,6 @@ static int tilcdc_init(struct drm_driver *ddrv, struct device *dev)
>  	return ret;
>  }
>  
> -static void tilcdc_lastclose(struct drm_device *dev)
> -{
> -	struct tilcdc_drm_private *priv = dev->dev_private;
> -	drm_fbdev_cma_restore_mode(priv->fbdev);
> -}
> -
>  static irqreturn_t tilcdc_irq(int irq, void *arg)
>  {
>  	struct drm_device *dev = arg;
> @@ -538,7 +522,7 @@ DEFINE_DRM_GEM_CMA_FOPS(fops);
>  static struct drm_driver tilcdc_driver = {
>  	.driver_features    = (DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET |
>  			       DRIVER_PRIME | DRIVER_ATOMIC),
> -	.lastclose          = tilcdc_lastclose,
> +	.lastclose          = drm_fb_helper_lastclose,
>  	.irq_handler        = tilcdc_irq,
>  	.gem_free_object_unlocked = drm_gem_cma_free_object,
>  	.gem_vm_ops         = &drm_gem_cma_vm_ops,
> diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.h b/drivers/gpu/drm/tilcdc/tilcdc_drv.h
> index 8caa11bc7aec..ead512216669 100644
> --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.h
> +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.h
> @@ -79,8 +79,6 @@ struct tilcdc_drm_private {
>  
>  	struct workqueue_struct *wq;
>  
> -	struct drm_fbdev_cma *fbdev;
> -
>  	struct drm_crtc *crtc;
>  
>  	unsigned int num_encoders;
> 


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