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drm/mipi-dbi: Fix source-buffer address in mipi_dbi_buf_copy

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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: c47160d8ed ("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
This commit is contained in:
Thomas Zimmermann 2022-01-11 14:26:34 +01:00
parent e592dc3205
commit 9d31993451
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/drm_mipi_dbi.c
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@ -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: