Set the source-buffer address after mapping the buffer into the
kernel's address space. Makes MIPI DBI helpers work again.
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Fixes: c47160d8edcd ("drm/mipi-dbi: Remove dependency on GEM CMA helper library")
Reported-by: Noralf Trønnes <noralf@xxxxxxxxxxx>
Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Cc: Maxime Ripard <mripard@xxxxxxxxxx>
---
drivers/gpu/drm/drm_mipi_dbi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_mipi_dbi.c b/drivers/gpu/drm/drm_mipi_dbi.c
index ded8968b3e8a..0327d595e028 100644
--- a/drivers/gpu/drm/drm_mipi_dbi.c
+++ b/drivers/gpu/drm/drm_mipi_dbi.c
@@ -209,11 +209,11 @@ int mipi_dbi_buf_copy(void *dst, struct drm_framebuffer *fb,
ret = drm_gem_fb_begin_cpu_access(fb, DMA_FROM_DEVICE);
if (ret)
return ret;
- src = data[0].vaddr; /* TODO: Use mapping abstraction properly */
ret = drm_gem_fb_vmap(fb, map, data);
if (ret)
goto out_drm_gem_fb_end_cpu_access;
+ src = data[0].vaddr; /* TODO: Use mapping abstraction properly */
switch (fb->format->format) {
case DRM_FORMAT_RGB565:
--
2.34.1
