Hi Sascha:
On 3/31/22 15:06, Sascha Hauer wrote:
On Wed, Mar 30, 2022 at 08:50:09PM +0800, Andy Yan wrote:
Hi Sascha:
On 3/30/22 14:39, Sascha Hauer wrote:
Hi Andy,
On Tue, Mar 29, 2022 at 07:56:27PM +0800, Andy Yan wrote:
Hi Sascha:
On 3/28/22 23:11, Sascha Hauer wrote:
With upcoming VOP2 support VOP won't be the only choice anymore, so make
the VOP driver optional.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/rockchip/Kconfig | 8 ++++++++
drivers/gpu/drm/rockchip/Makefile | 3 ++-
drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 2 +-
3 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig
index fa5cfda4e90e3..7d22e2997a571 100644
--- a/drivers/gpu/drm/rockchip/Kconfig
+++ b/drivers/gpu/drm/rockchip/Kconfig
@@ -23,8 +23,16 @@ config DRM_ROCKCHIP
if DRM_ROCKCHIP
+config ROCKCHIP_VOP
+ bool "Rockchip VOP driver"
+ default y
+ help
+ This selects support for the VOP driver. You should enable it
+ on all older SoCs up to RK3399.
That reminds me that I wanted to rephrase this. Will change in next
round.
+
config ROCKCHIP_ANALOGIX_DP
bool "Rockchip specific extensions for Analogix DP driver"
+ depends on ROCKCHIP_VOP
Aanlogix dp is also on vop2 base soc such as rk356x and rk3588.
BTW I just looked at the downstream driver. Here we have the same
situation that the analogix dp driver calls rockchip_drm_wait_vact_end()
which is implemented in the VOP driver, so when the analogix dp driver
is actually used on a VOP2 SoC then it is either used in a way that
rockchip_drm_wait_vact_end() will never be called or it explodes in all
colours.
I added the dependency because analogix_dp-rockchip.c calls
rockchip_drm_wait_vact_end() which is implemented in the VOP driver,
so this driver currenty can't work with the VOP2 driver and can't
be linked without the VOP driver being present.
I'll add a few words to the commit message.
Maybe a better direction is move rockchip_drm_wait_vact_end from the VOP
driver to rockchip_drm_drv.c
I am not sure if that's really worth it. Yes, the direction might be the
right one, but I would really prefer when somebody does the change who
can test and confirm that the analogix dp really works with VOP2 in the
end.
If follow this point, the current DW_MIPI also has not been tested for
confirm that it
can really work with VOP2, so you should also make it depends on
ROCKCHIP_VOP.
I think the current solution is just a workaround to make your patch
pass the kernel compile
but not reflect the real situation.
Sascha
