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drm/armada: clean up armada_drm_crtc_page_flip() 

drm_mode_page_flip_ioctl() already takes care of checking the
framebuffer format, and also assigns primary->fb after a successful
call to this handler.  These are both redundant, and can be removed.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Russell King 2018-07-30 11:52:34 +01:00
parent 7794ec7774
commit 1729f56010
1 changed files with 0 additions and 12 deletions
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12
drivers/gpu/drm/armada/armada_crtc.c
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@ -1039,10 +1039,6 @@ static int armada_drm_crtc_page_flip(struct drm_crtc *crtc,
unsigned i; unsigned i;
int ret; int ret;
/* We don't support changing the pixel format */
if (fb->format != crtc->primary->fb->format)
return -EINVAL;
work = armada_drm_crtc_alloc_plane_work(dcrtc->crtc.primary); work = armada_drm_crtc_alloc_plane_work(dcrtc->crtc.primary);
if (!work) if (!work)
return -ENOMEM; return -ENOMEM;
@ -1068,14 +1064,6 @@ static int armada_drm_crtc_page_flip(struct drm_crtc *crtc,
return ret; return ret;
} }
/*
* Don't take a reference on the new framebuffer;
* drm_mode_page_flip_ioctl() has already grabbed a reference and
* will _not_ drop that reference on successful return from this
* function. Simply mark this new framebuffer as the current one.
*/
dcrtc->crtc.primary->fb = fb;
/* /*
* Finally, if the display is blanked, we won't receive an * Finally, if the display is blanked, we won't receive an
* interrupt, so complete it now. * interrupt, so complete it now.