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| author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2017-07-10 23:46:39 +0300 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2017-08-03 16:17:26 +0300 |
| commit | cbbb90b0c084d7dfb2ed8e3fecf8df200fbdd2a0 (patch) | |
| tree | 885d7d402cbd8169fef8fdbe59c9a0124af84701 | |
| parent | 776c5d000ba5401dc338b172e1e88b02e6b37216 (diff) | |
| download | op-kernel-dev-cbbb90b0c084d7dfb2ed8e3fecf8df200fbdd2a0.zip op-kernel-dev-cbbb90b0c084d7dfb2ed8e3fecf8df200fbdd2a0.tar.gz | |
drm: rcar-du: Use the VBK interrupt for vblank events
When implementing support for interlaced modes, the driver switched from
reporting vblank events on the vertical blanking (VBK) interrupt to the
frame end interrupt (FRM). This incorrectly divided the reported refresh
rate by two. Fix it by moving back to the VBK interrupt.
Fixes: 906eff7fcada ("drm: rcar-du: Implement support for interlaced modes")
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
| -rw-r--r-- | drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c index 98cf446..17fd1cd 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -698,7 +698,7 @@ static irqreturn_t rcar_du_crtc_irq(int irq, void *arg) status = rcar_du_crtc_read(rcrtc, DSSR); rcar_du_crtc_write(rcrtc, DSRCR, status & DSRCR_MASK); - if (status & DSSR_FRM) { + if (status & DSSR_VBK) { drm_crtc_handle_vblank(&rcrtc->crtc); if (rcdu->info->gen < 3) |
