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@suse.de Fixes: c47160d8edcd ("drm/mipi-dbi: Remove dependency on GEM CMA helper library") Reported-by: Noralf Trønnes noralf@tronnes.org Cc: Thomas Zimmermann tzimmermann@suse.de Cc: Daniel Vetter daniel.vetter@ffwll.ch Cc: Maarten Lankhorst maarten.lankhorst@linux.intel.com Cc: Maxime Ripard mripard@kernel.org --- 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: