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drm/tegra: Use new drm_fb_helper functions

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Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

v2:
- Fix up error handling path in tegra_fbdev_probe

Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: "Terje Bergström" <tbergstrom@nvidia.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Archit Taneja 2015-07-22 14:58:07 +05:30 committed by Daniel Vetter
parent 990e8440f2
commit 0f7d9052fb
1 changed files with 9 additions and 26 deletions
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35
drivers/gpu/drm/tegra/fb.c
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@ -184,9 +184,9 @@ struct drm_framebuffer *tegra_fb_create(struct drm_device *drm,
#ifdef CONFIG_DRM_TEGRA_FBDEV
static struct fb_ops tegra_fb_ops = {
.owner = THIS_MODULE,
.fb_fillrect = sys_fillrect,
.fb_copyarea = sys_copyarea,
.fb_imageblit = sys_imageblit,
.fb_fillrect = drm_fb_helper_sys_fillrect,
.fb_copyarea = drm_fb_helper_sys_copyarea,
.fb_imageblit = drm_fb_helper_sys_imageblit,
.fb_check_var = drm_fb_helper_check_var,
.fb_set_par = drm_fb_helper_set_par,
.fb_blank = drm_fb_helper_blank,
@ -224,11 +224,11 @@ static int tegra_fbdev_probe(struct drm_fb_helper *helper,
if (IS_ERR(bo))
return PTR_ERR(bo);
info = framebuffer_alloc(0, drm->dev);
if (!info) {
info = drm_fb_helper_alloc_fbi(helper);
if (IS_ERR(info)) {
dev_err(drm->dev, "failed to allocate framebuffer info\n");
drm_gem_object_unreference_unlocked(&bo->gem);
return -ENOMEM;
return PTR_ERR(info);
}
fbdev->fb = tegra_fb_alloc(drm, &cmd, &bo, 1);
@ -248,12 +248,6 @@ static int tegra_fbdev_probe(struct drm_fb_helper *helper,
info->flags = FBINFO_FLAG_DEFAULT;
info->fbops = &tegra_fb_ops;
err = fb_alloc_cmap(&info->cmap, 256, 0);
if (err < 0) {
dev_err(drm->dev, "failed to allocate color map: %d\n", err);
goto destroy;
}
drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
drm_fb_helper_fill_var(info, helper, fb->width, fb->height);
@ -282,7 +276,7 @@ static int tegra_fbdev_probe(struct drm_fb_helper *helper,
drm_framebuffer_unregister_private(fb);
tegra_fb_destroy(fb);
release:
framebuffer_release(info);
drm_fb_helper_release_fbi(helper);
return err;
}
@ -347,20 +341,9 @@ static int tegra_fbdev_init(struct tegra_fbdev *fbdev,
static void tegra_fbdev_exit(struct tegra_fbdev *fbdev)
{
struct fb_info *info = fbdev->base.fbdev;
if (info) {
int err;
err = unregister_framebuffer(info);
if (err < 0)
DRM_DEBUG_KMS("failed to unregister framebuffer\n");
if (info->cmap.len)
fb_dealloc_cmap(&info->cmap);
framebuffer_release(info);
}
drm_fb_helper_unregister_fbi(&fbdev->base);
drm_fb_helper_release_fbi(&fbdev->base);
if (fbdev->fb) {
drm_framebuffer_unregister_private(&fbdev->fb->base);