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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2022-01-11 16:26:34 +0300 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2022-01-14 16:43:02 +0300 |
| commit | 5d474cc501b90b82c182b5d00439eb6790a82e21 (patch) | |
| tree | 1ede14c1b65ad5052060dbb72bc5c8d7dff86142 /drivers | |
| parent | bd672b7559efcd3ae3faf0b0e3846e30983e8ace (diff) | |
| download | linux-5d474cc501b90b82c182b5d00439eb6790a82e21.tar.xz | |
drm/mipi-dbi: Fix source-buffer address in mipi_dbi_buf_copy
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")
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
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>
Link: https://patchwork.freedesktop.org/patch/msgid/20220111132634.18302-1-tzimmermann@suse.de
(cherry picked from commit 9d31993451f6bb4059a9b9eec4856b2225e36df0)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/drm_mipi_dbi.c | 2 |
1 files changed, 1 insertions, 1 deletions
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: |