linux-kernel - Re: [RESEND PATCH v2 14/15] ASoC: qcom: apq8096: Add db820c machine driver

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Message-ID: <20180104140319.GH10774@sirena.org.uk>
Date:   Thu, 4 Jan 2018 14:03:19 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Cc:     Stephen Boyd <sboyd@...eaurora.org>,
        Andy Gross <andy.gross@...aro.org>,
        linux-arm-msm@...r.kernel.org, alsa-devel@...a-project.org,
        David Brown <david.brown@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Patrick Lai <plai@...eaurora.org>,
        Banajit Goswami <bgoswami@...eaurora.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, linux-soc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [RESEND PATCH v2 14/15] ASoC: qcom: apq8096: Add db820c machine
 driver

On Thu, Jan 04, 2018 at 01:44:30PM +0000, Srinivas Kandagatla wrote:

> Initially I had this in pcm driver, but looking at example usage of
> snd_dma_alloc_pages, most of them use card->dev and some of them use pcm
> device for allocating dma memory.

If they're using card->dev for DMA they're messing up, they need to use
the device associated with the DMA controller.

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