From: voice.shen@atmel.com (Bo Shen)
To: linux-arm-kernel@lists.infradead.org
Subject: Device tree support for Atmel AC97 controller on AT91SAM9263
Date: Mon, 14 Apr 2014 16:39:43 +0800 [thread overview]
Message-ID: <534B9ECF.806@atmel.com> (raw)
In-Reply-To: <1397293707-26890-1-git-send-email-alexanders83@web.de>
Hi Alexander,
On 04/12/2014 05:08 PM, Alexander Stein wrote:
> This set of patches add device tree support for the AC97 controller found
> on AT91SAM9263.
> The first two patches are minor cleanup, while the last ones add the actual
> support.
I just test the whole patch series, and find issues to work with device
tree kernel.
When we use dt kernel, no where assign the device id (so take it as
"-1"), so when register devices, it will be /dev/snd/pcmC0D-1p and
/dev/snd/pcmC0D-1c. So, the sound won't work.
The root cause is that when call "snd_pcm_new", it will pass
"chip->pdev->id" as parameter.
So, I am thinking whether this should be fix in <sound/atmel/ac97c.c> or
in <sound/core/pcm.c>
> Regards,
> Alexander
Best Regards,
Bo Shen
next prev parent reply other threads:[~2014-04-14 8:39 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-12 9:08 Device tree support for Atmel AC97 controller on AT91SAM9263 Alexander Stein
2014-04-12 9:08 ` [PATCH 1/4] ALSA: sound/atmel/ac97c.c: Convert to module_platform_driver Alexander Stein
2014-04-14 22:48 ` Alexandre Belloni
2014-04-12 9:08 ` [PATCH 2/4] ALSA: sound/atmel-ac97c.h: Remove unused flags from platform data Alexander Stein
2014-04-14 22:51 ` Alexandre Belloni
2014-04-12 9:08 ` [PATCH 3/4] ALSA: sound/atmel/ac97c.c: Add device tree support Alexander Stein
2014-04-12 10:31 ` Alexander Shiyan
2014-04-12 10:42 ` Alexander Stein
2014-04-12 10:48 ` Alexander Shiyan
2014-04-13 8:32 ` Alexander Stein
2014-04-14 23:21 ` Alexandre Belloni
2014-04-15 19:17 ` Alexander Stein
2014-04-14 23:07 ` Alexandre Belloni
2014-04-12 9:08 ` [PATCH 4/4] ARM: at91/dt: sam9263: Add ac97 device node Alexander Stein
2014-04-14 8:39 ` Bo Shen [this message]
2014-04-14 18:34 ` Device tree support for Atmel AC97 controller on AT91SAM9263 Alexander Stein
2014-04-14 8:42 ` Takashi Iwai
2014-04-14 18:43 ` Alexander Stein
2014-04-14 22:47 ` Alexandre Belloni
2014-04-15 5:59 ` Takashi Iwai
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