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drm/repaper: 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>
Link: https://patchwork.freedesktop.org/patch/msgid/20210716140801.1215-7-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2021-07-16 16:08:00 +02:00
parent 329e2c42f8
commit baf6c24bac
1 changed files with 4 additions and 14 deletions
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18
drivers/gpu/drm/tiny/repaper.c
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@ -14,7 +14,6 @@
*/
#include <linux/delay.h>
#include <linux/dma-buf.h>
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/property.h>
@ -532,7 +531,6 @@ static void repaper_gray8_to_mono_reversed(u8 *buf, u32 width, u32 height)
static int repaper_fb_dirty(struct drm_framebuffer *fb)
{
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;
struct repaper_epd *epd = drm_to_epd(fb->dev);
struct drm_rect clip;
int idx, ret = 0;
@ -558,21 +556,13 @@ static int repaper_fb_dirty(struct drm_framebuffer *fb)
goto out_exit;
}
if (import_attach) {
ret = dma_buf_begin_cpu_access(import_attach->dmabuf,
DMA_FROM_DEVICE);
if (ret)
goto out_free;
}
ret = drm_gem_fb_begin_cpu_access(fb, DMA_FROM_DEVICE);
if (ret)
goto out_free;
drm_fb_xrgb8888_to_gray8(buf, cma_obj->vaddr, fb, &clip);
if (import_attach) {
ret = dma_buf_end_cpu_access(import_attach->dmabuf,
DMA_FROM_DEVICE);
if (ret)
goto out_free;
}
drm_gem_fb_end_cpu_access(fb, DMA_FROM_DEVICE);
repaper_gray8_to_mono_reversed(buf, fb->width, fb->height);