linux-kernel - Re: [PATCH v3 1/3] ASoC: rockchip: i2s: add 8 channels capture support

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Message-ID: <56404991.6000505@rock-chips.com>
Date:	Mon, 9 Nov 2015 15:21:53 +0800
From:	sugar <sugar.zhang@...k-chips.com>
To:	Mark Brown <broonie@...nel.org>
Cc:	alsa-devel@...a-project.org, heiko@...ech.de,
	linux-kernel@...r.kernel.org, tiwai@...e.com, lgirdwood@...il.com,
	linux-rockchip@...ts.infradead.org, perex@...ex.cz,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 1/3] ASoC: rockchip: i2s: add 8 channels capture
 support


On 11/6/2015 20:00, Mark Brown wrote:
> On Fri, Nov 06, 2015 at 09:38:09AM +0800, Sugar Zhang wrote:
>
>> +	/* refine capture channels */
>> +	if (!of_property_read_u32(node, "rockchip,capture-channels", &val)) {
>> +		if (val >= 2 && val <= 8)
>> +			rockchip_i2s_dai.capture.channels_max = val;
>> +		else
>> +			rockchip_i2s_dai.capture.channels_max = 2;
>> +	}
>
> You should make a copy of the rockchip_i2s_dai struct in your driver
> data and modify that rather than modifying the original - what happens
> if sommeone makes a SoC with two I2S DAIs, one with many channels and
> another with only two?  Samsung SoCs often have an arrangement like that
> for exmaple.
>

Yes, I agree, because this patch was merged into mainline, I will post a 
new one based on the latest code to fix this, thanks.
>
> _______________________________________________
> Linux-rockchip mailing list
> Linux-rockchip@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-rockchip
>

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