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

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Date:   Fri, 8 Oct 2021 07:45:22 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Joel Stanley <joel@....id.au>
Cc:     Zev Weiss <zev@...ilderbeest.net>,
        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

On Fri, Oct 08, 2021 at 04:43:24AM +0000, Joel Stanley wrote:
> 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?

I have seen them on the mailing list, yes.

good luck!

greg k-h