[PATCH 3/3] drm/ssd130x: ensure ssd132x pitch is correct

[John Keeping <jkeeping@xxxxxxxxxxxxxxxxx>]

The bounding rectangle is adjusted to ensure it aligns to
SSD132X_SEGMENT_WIDTH, which may adjust the pitch.  Calcuate the pitch
after alighting the left and right edge.

Signed-off-by: John Keeping <jkeeping@xxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/solomon/ssd130x.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/solomon/ssd130x.c b/drivers/gpu/drm/solomon/ssd130x.c
index 64f1123080996..38f31c3624062 100644
--- a/drivers/gpu/drm/solomon/ssd130x.c
+++ b/drivers/gpu/drm/solomon/ssd130x.c
@@ -1037,7 +1037,7 @@ static int ssd132x_fb_blit_rect(struct drm_framebuffer *fb,
 				struct drm_format_conv_state *fmtcnv_state)
 {
 	struct ssd130x_device *ssd130x = drm_to_ssd130x(fb->dev);
-	unsigned int dst_pitch = drm_rect_width(rect);
+	unsigned int dst_pitch;
 	struct iosys_map dst;
 	int ret = 0;
 
@@ -1046,6 +1046,8 @@ static int ssd132x_fb_blit_rect(struct drm_framebuffer *fb,
 	rect->x2 = min_t(unsigned int, round_up(rect->x2, SSD132X_SEGMENT_WIDTH),
 			 ssd130x->width);
 
+	dst_pitch = drm_rect_width(rect);
+
 	ret = drm_gem_fb_begin_cpu_access(fb, DMA_FROM_DEVICE);
 	if (ret)
 		return ret;
-- 
2.47.1