From: Joao Pinto <Joao.Pinto@synopsys.com>
To: Russell King - ARM Linux <linux@armlinux.org.uk>,
Joao Pinto <Joao.Pinto@synopsys.com>
Cc: <linux-kernel@vger.kernel.org>, <ijc+devicetree@hellion.org.uk>,
<liviu.dudau@arm.com>, <ryan.harkin@linaro.org>
Subject: Re: [PATCH 3/3] tda998x: add HPD delay to avoid disabling sound when EDID checksum fails.
Date: Tue, 31 May 2016 17:58:31 +0100 [thread overview]
Message-ID: <801ce163-b8ac-3375-56f2-9a8d7cd70ded@synopsys.com> (raw)
In-Reply-To: <20160530191044.GR19428@n2100.arm.linux.org.uk>
Hi Russell,
On 5/30/2016 8:10 PM, Russell King - ARM Linux wrote:
> On Mon, May 30, 2016 at 04:15:54PM +0100, Joao Pinto wrote:
>> When using ffplay to reproduce video+sound it was noticed that sometimes the
>> sound was disabled. The cause was an initial EDID checksum error that disabled
(...)
>> @@ -1313,6 +1324,7 @@ static int tda998x_create(struct i2c_client *client, struct tda998x_priv *priv)
>>
>> /* init read EDID waitqueue and HDP work */
>> init_waitqueue_head(&priv->wq_edid);
>> + INIT_DELAYED_WORK(&priv->dwork, tda998x_hpd);
>>
>> /* clear pending interrupts */
>> reg_read(priv, REG_INT_FLAGS_0);
>
> Clearly, this patch is incomplete. There's nothing that schedules this
> work to be run.
You are right, forgot to include the schedule in the patch!
>
> In any case, this is reintroducing the code which I deleted when I fixed
> the (rather crappy) previous implemention of delaying the EDID read after
> a hotplug event. You should not need this patch.
>
If a checksum validation fails the video reproduction is done muted if you use a
simple app like ffplay. This does not happen if using mplayer.
Could you please check the sound support patch?
Thanks,
Joao
next prev parent reply other threads:[~2016-05-31 17:00 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-30 15:15 [PATCH 0/3] tda998x: add sound support Joao Pinto
2016-05-30 15:15 ` [PATCH 1/3] tda998x: adding " Joao Pinto
2016-05-30 15:15 ` [PATCH 2/3] tda998x: adding sound support for Juno in the DT Joao Pinto
2016-05-30 15:15 ` [PATCH 3/3] tda998x: add HPD delay to avoid disabling sound when EDID checksum fails Joao Pinto
2016-05-30 19:10 ` Russell King - ARM Linux
2016-05-31 16:58 ` Joao Pinto [this message]
2016-06-01 16:32 ` Russell King - ARM Linux
2016-06-01 16:38 ` Joao Pinto
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