[PATCH] drm/rockchip: kick firmware-based framebuffer when initializing
Icenowy Zheng
icenowy at aosc.io
Wed May 26 01:55:27 PDT 2021
Since U-Boot now supports EFI and FB passing via EFI GOP, when booting
rockchip SoCs via EFI, a EFI FB is available. However, currently when
re-initializing display pipeline, the EFI FB is not removed, lead to
fbcon not working (because the EFI FB is no longer bound to the display
pipeline although it's still /dev/fb0 and fbcon is bound to it).
Add some code for removing firmware-based FB when initializing KMS of
rockchipdrm.
Tested on Pinebook Pro (RK3399) with U-Boot patchset for initializing
eDP display applied.
Signed-off-by: Icenowy Zheng <icenowy at aosc.io>
---
drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
index 212bd87c0c4a..3905fce6ce0b 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
@@ -158,6 +158,9 @@ static int rockchip_drm_bind(struct device *dev)
*/
drm_dev->irq_enabled = true;
+ /* Remove early framebuffers (ie. efifb) */
+ drm_fb_helper_remove_conflicting_framebuffers(NULL, "rockchipdrmfb", false);
+
ret = rockchip_drm_fbdev_init(drm_dev);
if (ret)
goto err_unbind_all;
--
2.30.2
More information about the Linux-rockchip
mailing list