[PATCH 2/3] drm/rockchip: Add vop_format_get_bpp to get format bpp

[Sandy Huang <hjc@rock-chips.com>]

For 10bit yuv format, we need to get format bpp each plane, so we
Add vop_format_get_bpp() to instead of format->cpp[];

Signed-off-by: Sandy Huang <hjc@rock-chips.com>
---
 drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 26 +++++++++++++++++++++++---
 1 file changed, 23 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index 2f821c5..ce5b45d 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -249,6 +249,25 @@ static bool has_rb_swapped(uint32_t format)
 	}
 }
 
+static int vop_format_get_bpp(u32 format, u8 plane)
+{
+	const struct drm_format_info *info;
+
+	info = drm_format_info(format);
+	if (!info || plane >= info->num_planes)
+		return 0;
+
+	if (info->cpp[0] == 0) {
+		/* only support DRM_FORMAT_NVxx_10 now */
+		if (plane == 0)
+			return 10;
+		else
+			return 20;
+	}
+
+	return info->cpp[plane] * 8;
+}
+
 static enum vop_data_format vop_convert_format(uint32_t format)
 {
 	switch (format) {
@@ -832,7 +851,8 @@ static void vop_plane_atomic_update(struct drm_plane *plane,
 	dsp_sty = dest->y1 + crtc->mode.vtotal - crtc->mode.vsync_start;
 	dsp_st = dsp_sty << 16 | (dsp_stx & 0xffff);
 
-	offset = (src->x1 >> 16) * fb->format->cpp[0];
+	offset = (src->x1 >> 16) *
+			vop_format_get_bpp(fb->format->format, 0) / 8;
 	offset += (src->y1 >> 16) * fb->pitches[0];
 	dma_addr = rk_obj->dma_addr + offset + fb->offsets[0];
 
@@ -859,12 +879,12 @@ static void vop_plane_atomic_update(struct drm_plane *plane,
 	if (is_yuv) {
 		int hsub = fb->format->hsub;
 		int vsub = fb->format->vsub;
-		int bpp = fb->format->cpp[1];
+		int bpp = vop_format_get_bpp(fb->format->format, 1);
 
 		uv_obj = fb->obj[1];
 		rk_uv_obj = to_rockchip_obj(uv_obj);
 
-		offset = (src->x1 >> 16) * bpp / hsub;
+		offset = (src->x1 >> 16) * bpp / 8 / hsub;
 		offset += (src->y1 >> 16) * fb->pitches[1] / vsub;
 
 		dma_addr = rk_uv_obj->dma_addr + offset + fb->offsets[1];
-- 
2.7.4