On 2015년 08월 11일 18:04, Inki Dae wrote:
> On 2015년 07월 13일 15:38, Archit Taneja wrote:
>> Use the newly created wrapper drm_fb_helper functions instead of calling
>> core fbdev functions directly. They also simplify the fb_info creation.
>>
>> COMPILE TESTED ONLY.
>>
>> Cc: Inki Dae <inki.dae@xxxxxxxxxxx>
>> Cc: Joonyoung Shim <jy0922.shim@xxxxxxxxxxx>
>> Cc: Seung-Woo Kim <sw0312.kim@xxxxxxxxxxx>
>>
>> Signed-off-by: Archit Taneja <architt@xxxxxxxxxxxxxx>
>> ---
>> drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 45 +++++++++----------------------
>> 1 file changed, 12 insertions(+), 33 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
>> index e0b085b..6975b70 100644
>> --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
>> +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
>> @@ -65,9 +65,9 @@ static int exynos_drm_fb_mmap(struct fb_info *info,
>> static struct fb_ops exynos_drm_fb_ops = {
>> .owner = THIS_MODULE,
>> .fb_mmap = exynos_drm_fb_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,
>> @@ -142,10 +142,10 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper *helper,
>>
>> mutex_lock(&dev->struct_mutex);
>>
>> - fbi = framebuffer_alloc(0, &pdev->dev);
>> - if (!fbi) {
>> + fbi = drm_fb_helper_alloc_fbi(helper);
>> + if (IS_ERR(fbi)) {
>> DRM_ERROR("failed to allocate fb info.\n");
>> - ret = -ENOMEM;
>> + ret = PTR_ERR(fbi);
>> goto out;
>> }
>>
>> @@ -165,7 +165,7 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper *helper,
>>
>> if (IS_ERR(exynos_gem_obj)) {
>> ret = PTR_ERR(exynos_gem_obj);
>> - goto err_release_framebuffer;
>> + goto err_release_fbi;
>> }
>>
>> exynos_fbdev->exynos_gem_obj = exynos_gem_obj;
>> @@ -178,21 +178,13 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper *helper,
>> goto err_destroy_gem;
>> }
>>
>> - helper->fbdev = fbi;
>> -
>> fbi->par = helper;
>> fbi->flags = FBINFO_FLAG_DEFAULT;
>> fbi->fbops = &exynos_drm_fb_ops;
>>
>> - ret = fb_alloc_cmap(&fbi->cmap, 256, 0);
>> - if (ret) {
>> - DRM_ERROR("failed to allocate cmap.\n");
>> - goto err_destroy_framebuffer;
>> - }
>> -
>> ret = exynos_drm_fbdev_update(helper, sizes, helper->fb);
>> if (ret < 0)
>> - goto err_dealloc_cmap;
>> + goto err_destroy_framebuffer;
>
> With above change, err_dealloc_cmap label isn't used anymore so you need
> to remove below lines,
>
> err_dealloc_cmap:
> fb_dealloc_cmap(&fbi->cmap);
Oops, Sorry. You already posted v2 and there is no warning.
Please ignore it.
Thanks,
Inki Dae
>
> Thanks,
> Inki Dae
>
>>
>> mutex_unlock(&dev->struct_mutex);
>> return ret;
>> @@ -203,8 +195,8 @@ err_destroy_framebuffer:
>> drm_framebuffer_cleanup(helper->fb);
>> err_destroy_gem:
>> exynos_drm_gem_destroy(exynos_gem_obj);
>> -err_release_framebuffer:
>> - framebuffer_release(fbi);
>> +err_release_fbi:
>> + drm_fb_helper_release_fbi(helper);
>>
>> /*
>> * if failed, all resources allocated above would be released by
>> @@ -312,21 +304,8 @@ static void exynos_drm_fbdev_destroy(struct drm_device *dev,
>> }
>> }
>>
>> - /* release linux framebuffer */
>> - if (fb_helper->fbdev) {
>> - struct fb_info *info;
>> - int ret;
>> -
>> - info = fb_helper->fbdev;
>> - ret = unregister_framebuffer(info);
>> - if (ret < 0)
>> - DRM_DEBUG_KMS("failed unregister_framebuffer()\n");
>> -
>> - if (info->cmap.len)
>> - fb_dealloc_cmap(&info->cmap);
>> -
>> - framebuffer_release(info);
>> - }
>> + drm_fb_helper_unregister_fbi(fb_helper);
>> + drm_fb_helper_release_fbi(fb_helper);
>>
>> drm_fb_helper_fini(fb_helper);
>> }
>>
>
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