Re: [PATCH v9 20/23] drm/rockchip: Make VOP driver optional

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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 .

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.

Sascha


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