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From: Lars-Peter Clausen <lars@metafoo.de>
To: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>,
tiwai@suse.de, perex@perex.cz
Cc: devicetree@vger.kernel.org, alsa-devel@alsa-project.org,
broonie@kernel.org, lgirdwood@gmail.com,
linux-kernel@vger.kernel.org
Subject: Re: [alsa-devel] [PATCH 2/4] dt: sound: jz4740: Add binding documentation for jz4740-i2s
Date: Mon, 26 Jan 2015 12:38:33 +0100 [thread overview]
Message-ID: <54C62739.6090902@metafoo.de> (raw)
In-Reply-To: <54C625DE.7030500@imgtec.com>
On 01/26/2015 12:32 PM, Zubair Lutfullah Kakakhel wrote:
>
> On 26/01/15 10:37, Lars-Peter Clausen wrote:
>> On 01/26/2015 11:18 AM, Zubair Lutfullah Kakakhel wrote:
>> [...]
>>> +Required properties:
>>> +- compatible : "ingenic,jz4740-i2s"
>>> +- reg : I2S registers location and length
>>> +- clocks : AIC and I2S PLL clock specifiers.
>>> +- clock-names: "aic" and "i2s"
>>
>> We also need a handle to the DMA channels. Currently the request ids are hardcoded in the driver, but that needs to go away once the driver starts to support multiple SoCs with different request lines.
>
> I know. I've left DMA until we push the jz4780-dma driver upstream and see how things fit..
It doesn't hurt to put it in the spec. It will be two DMA channels one for
rx, one for tx. See for example
Documentation/devicetree/bindings/sound/bcm2835-i2s.txt
- Lars
next prev parent reply other threads:[~2015-01-26 11:38 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-26 10:18 [PATCH 0/4] sound:soc: jz4740: DT, dynamic sampling, enable clocks Zubair Lutfullah Kakakhel
2015-01-26 10:18 ` [PATCH 1/4] sound: soc: jz4740: Add dynamic sampling rate support to jz4740-i2s Zubair Lutfullah Kakakhel
2015-01-26 10:35 ` Lars-Peter Clausen
2015-01-26 10:18 ` [PATCH 2/4] dt: sound: jz4740: Add binding documentation for jz4740-i2s Zubair Lutfullah Kakakhel
2015-01-26 10:37 ` Lars-Peter Clausen
2015-01-26 11:32 ` Zubair Lutfullah Kakakhel
2015-01-26 11:38 ` Lars-Peter Clausen [this message]
2015-01-26 11:56 ` Arnd Bergmann
2015-01-26 10:18 ` [PATCH 3/4] sound: soc: jz4740: Add DT support to jz4740-i2s driver Zubair Lutfullah Kakakhel
2015-01-26 10:18 ` [PATCH 4/4] sound: jz4740: Enable codec clock during dai_probe Zubair Lutfullah Kakakhel
2015-01-26 10:40 ` Lars-Peter Clausen
2015-01-26 11:30 ` Zubair Lutfullah Kakakhel
2015-01-26 11:42 ` [alsa-devel] " Lars-Peter Clausen
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