From: Hyun Kwon <hyun.k...@xilinx.com>
Signed-off-by: Hyun Kwon <hyun.k...@xilinx.com>
Signed-off-by: Quanyang Wang <quanyang.w...@windriver.com>
---
drivers/gpu/drm/xlnx/xlnx_fb.c | 56 ++++++++++++++++++++++++++++++++--
1 file changed, 54 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/xlnx/xlnx_fb.c b/drivers/gpu/drm/xlnx/xlnx_fb.c
index dfe769d4788c..58c5d1d17ae9 100644
--- a/drivers/gpu/drm/xlnx/xlnx_fb.c
+++ b/drivers/gpu/drm/xlnx/xlnx_fb.c
@@ -90,6 +90,58 @@ static struct fb_ops xlnx_fbdev_ops = {
.fb_ioctl = xlnx_fb_ioctl,
};
+static struct drm_framebuffer *
+xlnx_fb_gem_fb_alloc(struct drm_device *drm,
+ const struct drm_mode_fb_cmd2 *mode_cmd,
+ struct drm_gem_object **obj, unsigned int num_planes,
+ const struct drm_framebuffer_funcs *funcs)
+{
+ struct drm_framebuffer *fb;
+ int ret, i;
+
+ fb = kzalloc(sizeof(*fb), GFP_KERNEL);
+ if (!fb)
+ return ERR_PTR(-ENOMEM);
+
+ drm_helper_mode_fill_fb_struct(drm, fb, mode_cmd);
+
+ for (i = 0; i < num_planes; i++)
+ fb->obj[i] = obj[i];
+
+ ret = drm_framebuffer_init(drm, fb, funcs);
+ if (ret) {
+ dev_err(drm->dev, "Failed to init framebuffer: %d\n", ret);
+ kfree(fb);
+ return ERR_PTR(ret);
+ }
+
+ return fb;
+}
+
+static struct drm_framebuffer *
+xlnx_fb_gem_fbdev_fb_create(struct drm_device *drm,
+ struct drm_fb_helper_surface_size *size,
+ unsigned int pitch_align, struct drm_gem_object *obj,
+ const struct drm_framebuffer_funcs *funcs)
+{
+ struct drm_mode_fb_cmd2 mode_cmd = { 0 };
+
+ mode_cmd.width = size->surface_width;
+ mode_cmd.height = size->surface_height;
+ mode_cmd.pitches[0] = size->surface_width *
+ DIV_ROUND_UP(size->surface_bpp, 8);
+ if (pitch_align)
+ mode_cmd.pitches[0] = roundup(mode_cmd.pitches[0],
+ pitch_align);
+ mode_cmd.pixel_format = drm_driver_legacy_fb_format(drm,
+ size->surface_bpp,
+
size->surface_depth);
+ if (obj->size < mode_cmd.pitches[0] * mode_cmd.height)
+ return ERR_PTR(-EINVAL);
+
+ return xlnx_fb_gem_fb_alloc(drm, &mode_cmd, &obj, 1, funcs);
+}
+
/**
* xlnx_fbdev_create - Create the fbdev with a framebuffer
* @fb_helper: fb helper structure
@@ -139,8 +191,8 @@ static int xlnx_fbdev_create(struct drm_fb_helper
*fb_helper,
if (size->surface_bpp == info->cpp[0] * 8)
size->surface_depth = info->depth;
- fbdev->fb = drm_gem_fbdev_fb_create(drm, size, fbdev->align, &obj->base,
- &xlnx_fb_funcs);
+ fbdev->fb = xlnx_fb_gem_fbdev_fb_create(drm, size, fbdev->align,
+ &obj->base, &xlnx_fb_funcs);
if (IS_ERR(fbdev->fb)) {
dev_err(drm->dev, "Failed to allocate DRM framebuffer.\n");
ret = PTR_ERR(fbdev->fb);
--
2.17.1
-=-=-=-=-=-=-=-=-=-=-=-
Links: You receive all messages sent to this group.
View/Reply Online (#8222):
https://lists.yoctoproject.org/g/linux-yocto/message/8222
Mute This Topic: https://lists.yoctoproject.org/mt/68719914/21656
Group Owner: linux-yocto+ow...@lists.yoctoproject.org
Unsubscribe: https://lists.yoctoproject.org/g/linux-yocto/unsub
[arch...@mail-archive.com]
-=-=-=-=-=-=-=-=-=-=-=-
