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drm/st7586: Use framebuffer dma-buf helpers

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Replace dma_buf_begin_cpu_access() with drm_gem_fb_begin_cpu_access();
same for _end_cpu_access(). Remove some boiler-plate code. No functional
changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: David Lechner <david@lechnology.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210716140801.1215-8-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2021-07-16 16:08:01 +02:00
parent baf6c24bac
commit 9200454ca0
1 changed files with 6 additions and 12 deletions
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18
drivers/gpu/drm/tiny/st7586.c
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@ -6,7 +6,6 @@
*/
#include <linux/delay.h>
#include <linux/dma-buf.h>
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/property.h>
@ -21,6 +20,7 @@
#include <drm/drm_format_helper.h>
#include <drm/drm_gem_atomic_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_managed.h>
#include <drm/drm_mipi_dbi.h>
#include <drm/drm_rect.h>
@ -92,24 +92,18 @@ static int st7586_buf_copy(void *dst, struct drm_framebuffer *fb,
struct drm_rect *clip)
{
struct drm_gem_cma_object *cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
struct dma_buf_attachment *import_attach = cma_obj->base.import_attach;
void *src = cma_obj->vaddr;
int ret = 0;
if (import_attach) {
ret = dma_buf_begin_cpu_access(import_attach->dmabuf,
DMA_FROM_DEVICE);
if (ret)
return ret;
}
ret = drm_gem_fb_begin_cpu_access(fb, DMA_FROM_DEVICE);
if (ret)
return ret;
st7586_xrgb8888_to_gray332(dst, src, fb, clip);
if (import_attach)
ret = dma_buf_end_cpu_access(import_attach->dmabuf,
DMA_FROM_DEVICE);
drm_gem_fb_end_cpu_access(fb, DMA_FROM_DEVICE);
return ret;
return 0;
}
static void st7586_fb_dirty(struct drm_framebuffer *fb, struct drm_rect *rect)