The bounding rectangle is adjusted to ensure it aligns to
SSD132X_SEGMENT_WIDTH, which may adjust the pitch. Calculate the pitch
after aligning the left and right edge.
Fixes: fdd591e00a9c ("drm/ssd130x: Add support for the SSD132x OLED controller family")
Signed-off-by: John Keeping <jkeeping@xxxxxxxxxxxxxxxxx>
Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
---
Changes since v1:
- Correct typos in the commit message
- Add Fixes and Reviewed-by tags (thanks Javier!)
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 4bb663f984ce3..dd2006d51c7a2 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;
--
2.48.0
