[PATCH v3 22/22] drm: Remove legacy version of get_scanout_position()

[Ville Syrjälä]

On Mon, Jan 20, 2020 at 09:23:14AM +0100, Thomas Zimmermann wrote:
> The legacy version of get_scanout_position() was only useful while
> drivers still used drm_driver.get_scanout_position(). With no such
> drivers left, the related typedef and code can be removed
> 
> Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>

Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

> ---
>  drivers/gpu/drm/drm_vblank.c    | 27 +++++++--------------------
>  drivers/gpu/drm/i915/i915_irq.c |  2 +-
>  include/drm/drm_vblank.h        | 10 +---------
>  3 files changed, 9 insertions(+), 30 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_vblank.c b/drivers/gpu/drm/drm_vblank.c
> index 34428ce3c676..0bda7d7a0af2 100644
> --- a/drivers/gpu/drm/drm_vblank.c
> +++ b/drivers/gpu/drm/drm_vblank.c
> @@ -576,9 +576,6 @@ EXPORT_SYMBOL(drm_calc_timestamping_constants);
>   * @get_scanout_position:
>   *     Callback function to retrieve the scanout position. See
>   *     @struct drm_crtc_helper_funcs.get_scanout_position.
> - * @get_scanout_position_legacy:
> - *     Callback function to retrieve the scanout position. See
> - *     @struct drm_driver.get_scanout_position.
>   *
>   * Implements calculation of exact vblank timestamps from given drm_display_mode
>   * timings and current video scanout position of a CRTC.
> @@ -601,8 +598,7 @@ bool
>  drm_crtc_vblank_helper_get_vblank_timestamp_internal(
>  	struct drm_crtc *crtc, int *max_error, ktime_t *vblank_time,
>  	bool in_vblank_irq,
> -	drm_vblank_get_scanout_position_func get_scanout_position,
> -	drm_vblank_get_scanout_position_legacy_func get_scanout_position_legacy)
> +	drm_vblank_get_scanout_position_func get_scanout_position)
>  {
>  	struct drm_device *dev = crtc->dev;
>  	unsigned int pipe = crtc->index;
> @@ -620,7 +616,7 @@ drm_crtc_vblank_helper_get_vblank_timestamp_internal(
>  	}
>  
>  	/* Scanout position query not supported? Should not happen. */
> -	if (!get_scanout_position && !get_scanout_position_legacy) {
> +	if (!get_scanout_position) {
>  		DRM_ERROR("Called from CRTC w/o get_scanout_position()!?\n");
>  		return false;
>  	}
> @@ -651,19 +647,10 @@ drm_crtc_vblank_helper_get_vblank_timestamp_internal(
>  		 * Get vertical and horizontal scanout position vpos, hpos,
>  		 * and bounding timestamps stime, etime, pre/post query.
>  		 */
> -		if (get_scanout_position) {
> -			vbl_status = get_scanout_position(crtc,
> -							  in_vblank_irq,
> -							  &vpos, &hpos,
> -							  &stime, &etime,
> -							  mode);
> -		} else {
> -			vbl_status = get_scanout_position_legacy(dev, pipe,
> -								 in_vblank_irq,
> -								 &vpos, &hpos,
> -								 &stime, &etime,
> -								 mode);
> -		}
> +		vbl_status = get_scanout_position(crtc, in_vblank_irq,
> +						  &vpos, &hpos,
> +						  &stime, &etime,
> +						  mode);
>  
>  		/* Return as no-op if scanout query unsupported or failed. */
>  		if (!vbl_status) {
> @@ -755,7 +742,7 @@ bool drm_crtc_vblank_helper_get_vblank_timestamp(struct drm_crtc *crtc,
>  {
>  	return drm_crtc_vblank_helper_get_vblank_timestamp_internal(
>  		crtc, max_error, vblank_time, in_vblank_irq,
> -		crtc->helper_private->get_scanout_position, NULL);
> +		crtc->helper_private->get_scanout_position);
>  }
>  EXPORT_SYMBOL(drm_crtc_vblank_helper_get_vblank_timestamp);
>  
> diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
> index 29bf847999f5..3245f7c5c84f 100644
> --- a/drivers/gpu/drm/i915/i915_irq.c
> +++ b/drivers/gpu/drm/i915/i915_irq.c
> @@ -886,7 +886,7 @@ bool intel_crtc_get_vblank_timestamp(struct drm_crtc *crtc, int *max_error,
>  {
>  	return drm_crtc_vblank_helper_get_vblank_timestamp_internal(
>  		crtc, max_error, vblank_time, in_vblank_irq,
> -		i915_get_crtc_scanoutpos, NULL);
> +		i915_get_crtc_scanoutpos);
>  }
>  
>  int intel_get_crtc_scanline(struct intel_crtc *crtc)
> diff --git a/include/drm/drm_vblank.h b/include/drm/drm_vblank.h
> index a6ca8be93dd8..0f474e855e7f 100644
> --- a/include/drm/drm_vblank.h
> +++ b/include/drm/drm_vblank.h
> @@ -245,20 +245,12 @@ typedef bool (*drm_vblank_get_scanout_position_func)(struct drm_crtc *crtc,
>  						     ktime_t *stime, ktime_t *etime,
>  						     const struct drm_display_mode *mode);
>  
> -typedef bool (*drm_vblank_get_scanout_position_legacy_func)(struct drm_device *dev,
> -							    unsigned int pipe,
> -							    bool in_vblank_irq,
> -							    int *vpos, int *hpos,
> -							    ktime_t *stime, ktime_t *etime,
> -							    const struct drm_display_mode *mode);
> -
>  bool
>  drm_crtc_vblank_helper_get_vblank_timestamp_internal(struct drm_crtc *crtc,
>  						     int *max_error,
>  						     ktime_t *vblank_time,
>  						     bool in_vblank_irq,
> -						     drm_vblank_get_scanout_position_func get_scanout_position,
> -						     drm_vblank_get_scanout_position_legacy_func get_scanout_position_legacy);
> +						     drm_vblank_get_scanout_position_func get_scanout_position);
>  bool drm_crtc_vblank_helper_get_vblank_timestamp(struct drm_crtc *crtc,
>  						 int *max_error,
>  						 ktime_t *vblank_time,
> -- 
> 2.24.1
> 
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-- 
Ville Syrjälä
Intel