Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.
This is an effort to create a top level drm fbdev emulation option.
COMPILE TESTED ONLY.
Cc: Mark Yao <mark.yao@xxxxxxxxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Cc: Rob Clark <robdclark@xxxxxxxxx>
Cc: Daniel Kurtz <djkurtz@xxxxxxxxxxxx>
Signed-off-by: Archit Taneja <architt@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c | 47 +++++++--------------------
1 file changed, 12 insertions(+), 35 deletions(-)
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c
index 5b0dc0f..4de4292 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c
@@ -37,9 +37,9 @@ static int rockchip_fbdev_mmap(struct fb_info *info,
static struct fb_ops rockchip_drm_fbdev_ops = {
.owner = THIS_MODULE,
.fb_mmap = rockchip_fbdev_mmap,
- .fb_fillrect = cfb_fillrect,
- .fb_copyarea = cfb_copyarea,
- .fb_imageblit = cfb_imageblit,
+ .fb_fillrect = drm_fb_helper_cfb_fillrect,
+ .fb_copyarea = drm_fb_helper_cfb_copyarea,
+ .fb_imageblit = drm_fb_helper_cfb_imageblit,
.fb_check_var = drm_fb_helper_check_var,
.fb_set_par = drm_fb_helper_set_par,
.fb_blank = drm_fb_helper_blank,
@@ -77,10 +77,10 @@ static int rockchip_drm_fbdev_create(struct drm_fb_helper *helper,
private->fbdev_bo = &rk_obj->base;
- fbi = framebuffer_alloc(0, dev->dev);
- if (!fbi) {
- dev_err(dev->dev, "Failed to allocate framebuffer info.\n");
- ret = -ENOMEM;
+ fbi = drm_fb_helper_alloc_fbi(helper);
+ if (IS_ERR(fbi))
+ dev_err(dev->dev, "Failed to create framebuffer info.\n");
+ ret = PTR_ERR(fbi);
goto err_rockchip_gem_free_object;
}
@@ -89,21 +89,13 @@ static int rockchip_drm_fbdev_create(struct drm_fb_helper *helper,
if (IS_ERR(helper->fb)) {
dev_err(dev->dev, "Failed to allocate DRM framebuffer.\n");
ret = PTR_ERR(helper->fb);
- goto err_framebuffer_release;
+ goto err_release_fbi;
}
- helper->fbdev = fbi;
-
fbi->par = helper;
fbi->flags = FBINFO_FLAG_DEFAULT;
fbi->fbops = &rockchip_drm_fbdev_ops;
- ret = fb_alloc_cmap(&fbi->cmap, 256, 0);
- if (ret) {
- dev_err(dev->dev, "Failed to allocate color map.\n");
- goto err_drm_framebuffer_unref;
- }
-
fb = helper->fb;
drm_fb_helper_fill_fix(fbi, fb->pitches[0], fb->depth);
drm_fb_helper_fill_var(fbi, helper, sizes->fb_width, sizes->fb_height);
@@ -124,10 +116,8 @@ static int rockchip_drm_fbdev_create(struct drm_fb_helper *helper,
return 0;
-err_drm_framebuffer_unref:
- drm_framebuffer_unreference(helper->fb);
-err_framebuffer_release:
- framebuffer_release(fbi);
+err_release_fbi:
+ drm_fb_helper_release_fbi(helper);
err_rockchip_gem_free_object:
rockchip_gem_free_object(&rk_obj->base);
return ret;
@@ -190,21 +180,8 @@ void rockchip_drm_fbdev_fini(struct drm_device *dev)
helper = &private->fbdev_helper;
- if (helper->fbdev) {
- struct fb_info *info;
- int ret;
-
- info = helper->fbdev;
- ret = unregister_framebuffer(info);
- if (ret < 0)
- DRM_DEBUG_KMS("failed unregister_framebuffer() - %d\n",
- ret);
-
- if (info->cmap.len)
- fb_dealloc_cmap(&info->cmap);
-
- framebuffer_release(info);
- }
+ drm_fb_helper_unregister_fbi(helper);
+ drm_fb_helper_release_fbi(helper);
if (helper->fb)
drm_framebuffer_unreference(helper->fb);
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation
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