[RESEND PATCH] drm/hisilicon: Ensure LDI regs are properly configured.

Peter Griffin peter.griffin at linaro.org
Mon Oct 23 17:34:25 UTC 2017


Hi Xinliang,

On 28 August 2017 at 10:27, Xinliang Liu <xinliang.liu at linaro.org> wrote:

> Hi Daniel,
>
> On 28 August 2017 at 16:51, Daniel Vetter <daniel at ffwll.ch> wrote:
> > On Mon, Aug 28, 2017 at 04:44:30PM +0800, Xinliang Liu wrote:
> >> Hi,
> >>
> >> On 15 August 2017 at 22:14, Peter Griffin <peter.griffin at linaro.org>
> wrote:
> >>
> >> > This patch fixes the following soft lockup:
> >> >   BUG: soft lockup - CPU#0 stuck for 23s! [weston:307]
> >> >
> >> > On weston idle-timeout the IP is powered down and reset
> >> > asserted. On weston resume we get a massive vblank
> >> > IRQ storm due to the LDI registers having lost some state.
> >> >
> >> > This state loss is caused by ade_crtc_atomic_begin() not
> >> > calling ade_ldi_set_mode(). With this patch applied
> >> > resuming from Weston idle-timeout works well.
> >> >
> >> > Signed-off-by: Peter Griffin <peter.griffin at linaro.org>
> >> > Tested-by: John Stultz <john.stultz at linaro.org>
> >> >
> >>
> >> Thanks Peter,
> >> This patch looks good to me.
> >> Reviewed-by: Xinliang Liu <xinliang.liu at linaro.org>
> >>
> >> @Sean, could you please help to apply to drm-misc if others has no more
> >> comments, thanks.
> >
> > hisilicon isn't maintained in drm-misc, and you're the maintainer. This
> is
> > not how it works. So either
> > a) pick up the patch and send out a pull request to Dave Airlie
> > b) move hisilicon over to drm-misc and become a drm-misc maintainer
> > yourself. This needs a MAINTAINERS update to point the git tree at
> > drm-misc.
> >
> > drm-misc maintainers don't maintain everyone else's driver as a service,
> > that simply doesn't scale.
>
> Sorry for my misunderstanding and thanks for pointing out that how
> drm-misc works.
> So I will pick up the patch and send a pull request.
>

Did you send the pull request?

I still can't see this patch in the latest kernel RC.

Peter.
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