Hi Sean,
> -Original Message-
> From: Sean Young
> Sent: 2020年9月18日 16:24
> To: Joakim Zhang
> Cc: mche...@kernel.org; linux-me...@vger.kernel.org;
> linux-kernel@vger.kernel.org; dl-linux-imx
> Subject: Re: [PATCH] media: rc: gpio-ir-recv: add QoS support for cpu
l.org; dl-linux-imx
> > Subject: Re: [PATCH] media: rc: gpio-ir-recv: add QoS support for cpuidle
> > system
-snip-
> > > Autosuspend delay should be fixed value, should be set to gpio device
> > > timeout
> > value, which is 125ms.
> >
> >
Hi Sean,
> -Original Message-
> From: Sean Young
> Sent: 2020年9月18日 4:44
> To: Joakim Zhang
> Cc: mche...@kernel.org; linux-me...@vger.kernel.org;
> linux-kernel@vger.kernel.org; dl-linux-imx
> Subject: Re: [PATCH] media: rc: gpio-ir-recv: add QoS support for cpu
r.kernel.org; dl-linux-imx
> > Subject: Re: [PATCH] media: rc: gpio-ir-recv: add QoS support for cpuidle
> > system
> >
> >
>
> [...]
> > > @@ -92,6 +113,12 @@ static int gpio_ir_recv_probe(struct
> > > platform_device *pdev)
> > >
> >
> -Original Message-
> From: Sean Young
> Sent: 2020年9月15日 17:34
> To: Joakim Zhang
> Cc: mche...@kernel.org; linux-me...@vger.kernel.org;
> linux-kernel@vger.kernel.org; dl-linux-imx
> Subject: Re: [PATCH] media: rc: gpio-ir-recv: add QoS support
Hi Joakim,
On Wed, Sep 16, 2020 at 10:22:11AM +, Joakim Zhang wrote:
>
> Hi Sean,
>
> Thanks for your hint, I will send a V2 soon according to your suggestions.
>
> We also have a concern, since you are a IR expert, may you can give us
> answers. With this patch, the first frame once
Joakim Zhang
> Cc: mche...@kernel.org; linux-me...@vger.kernel.org;
> linux-kernel@vger.kernel.org; dl-linux-imx
> Subject: Re: [PATCH] media: rc: gpio-ir-recv: add QoS support for cpuidle
> system
>
> Hi Joakim,
>
> On Tue, Sep 15, 2020 at 10:55:17AM +, Joakim Zhang wr
l.org; linux-me...@vger.kernel.org;
> > linux-kernel@vger.kernel.org; dl-linux-imx
> > Subject: Re: [PATCH] media: rc: gpio-ir-recv: add QoS support for cpuidle
> > system
> >
> >
> > Hi Joakim,
> >
> > Thanks for your patch, I think it looks good i
Hi Sean,
Thanks a lot for your review.
> -Original Message-
> From: Sean Young
> Sent: 2020年9月15日 17:34
> To: Joakim Zhang
> Cc: mche...@kernel.org; linux-me...@vger.kernel.org;
> linux-kernel@vger.kernel.org; dl-linux-imx
> Subject: Re: [PATCH] media: rc:
On Tue, Sep 15, 2020 at 11:06 AM Joakim Zhang wrote:
> From: Andy Shevchenko
> Sent: 2020年9月15日 15:18
> To: Joakim Zhang
> Cc: s...@mess.org; mche...@kernel.org; linux-me...@vger.kernel.org;
> linux-kernel@vger.kernel.org; dl-linux-imx
> Subject: Re: [PATCH] media: rc: gpi
Hi Joakim,
Thanks for your patch, I think it looks good in principle but needs a
few small fixes.
On Tue, Sep 15, 2020 at 11:02:02PM +0800, Joakim Zhang wrote:
> GPIO IR receive is much rely on interrupt response, uneven interrupt
> latency will lead to incorrect timing, so the decoder fails
GPIO IR receive is much rely on interrupt response, uneven interrupt
latency will lead to incorrect timing, so the decoder fails to decode
it. The issue is particularly acute on systems which supports
cpuidle, dynamically disable and enable cpuidle can solve this problem
to a great extent.
Joakim Zhang would like to recall the message, "[PATCH] media: rc:
gpio-ir-recv: add QoS support for cpuidle system".
GPIO IR receive is much rely on interrupt response, uneven interrupt
latency will lead to incorrect timing, so the decoder fails to decode
it. The issue is particularly acute on systems which supports
cpuidle, dynamically disable and enable cpuidle can solve this problem
to a great extent.
14 matches
Mail list logo
