linux-kernel - Re: [PATCH v3] media: aspeed-video: ignore interrupts that aren't enabled

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Message-ID: <CACPK8Xfowe6k8KOucveUd-O3vMC4n7qyF8uoowcpWj-Sugqhbw@mail.gmail.com>
Date:   Fri, 8 Oct 2021 04:43:24 +0000
From:   Joel Stanley <joel@....id.au>
To:     Zev Weiss <zev@...ilderbeest.net>,
        Greg KH <gregkh@...uxfoundation.org>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Eddie James <eajames@...ux.ibm.com>,
        "linux-aspeed@...ts.ozlabs.org" <linux-aspeed@...ts.ozlabs.org>,
        "openbmc@...ts.ozlabs.org" <openbmc@...ts.ozlabs.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
        Ryan Chen <ryan_chen@...eedtech.com>
Subject: Re: [PATCH v3] media: aspeed-video: ignore interrupts that aren't enabled

Hi Greg,

On Tue, 28 Sept 2021 at 18:57, Zev Weiss <zev@...ilderbeest.net> wrote:
>
> On Mon, Sep 06, 2021 at 04:47:14AM PDT, Joel Stanley wrote:
> >Hi Mauro,
> >
> >On Mon, 6 Sept 2021 at 10:10, Ryan Chen <ryan_chen@...eedtech.com> wrote:
> >> > Subject: Re: [PATCH v3] media: aspeed-video: ignore interrupts that aren't
> >> > enabled
> >> >
> >> > On Thu, 2021-06-17 at 17:02 -0500, Zev Weiss wrote:
> >> > > As partially addressed in commit 65d270acb2d6 ("media: aspeed: clear
> >> > > garbage interrupts"), the ASpeed video engine sometimes asserts
> >> > > interrupts that the driver hasn't enabled.  In addition to the
> >> > > CAPTURE_COMPLETE and FRAME_COMPLETE interrupts dealt with in that
> >> > > patch, COMP_READY has also been observed.  Instead of playing
> >> > > whack-a-mole with each one individually, we can instead just blanket
> >> > > ignore everything we haven't explicitly enabled.
> >> >
> >> > Suspect this will fix an intermittent problem on AST2500 with screensaver.
> >> > Change looks good, thanks!
> >> >
> >> > Reviewed-by: Eddie James <eajames@...ux.ibm.com>
> >> >
> >> Reviewed-by: Ryan Chen <ryan_chen@...eedtech.com>
> >> > >
> >> > > Signed-off-by: Zev Weiss <zev@...ilderbeest.net>
> >
> >I notice this wasn't merged in the pull request you sent for v5.15.
> >Would you be able to ensure it makes it in the next pull request you
> >send?
> >
> >It can have some fixes tags too:
> >
> >Fixes: 65d270acb2d6 ("media: aspeed: clear garbage interrupts")
> >Fixes: d2b4387f3bdf ("media: platform: Add Aspeed Video Engine driver")
> >Acked-by: Joel Stanley <joel@....id.au>
> >
> >Cheers,
> >
> >Joel
> >
>
> Also not in the recent merge of the media/v5.15-2 tag it looks like -- ping?

We're struggling to get a hold of the media maintainers to merge this
fix. Have you heard from them recently?

Cheers,

Joel