drm/rockchip: vop: Fix virtual stride calculation
vir_stride need number words of the virtual width, and fb->pitches
save bytes_per_pixel, so just div 4 switch to stride.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index 34b78e7..6b44731 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -667,7 +667,7 @@
offset += (src.y1 >> 16) * fb->pitches[0];
yrgb_mst = rk_obj->dma_addr + offset;
- y_vir_stride = fb->pitches[0] / (fb->bits_per_pixel >> 3);
+ y_vir_stride = fb->pitches[0] >> 2;
/*
* If this plane update changes the plane's framebuffer, (or more