linux-kernel - Re: [PATCH v8 11/22] ASoC: tegra: Add fallback implementation for audio mclk

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Message-ID: <20200217094020.GM1339021@ulmo>
Date:   Mon, 17 Feb 2020 10:40:20 +0100
From:   Thierry Reding <thierry.reding@...il.com>
To:     Sowjanya Komatineni <skomatineni@...dia.com>
Cc:     jonathanh@...dia.com, broonie@...nel.org, lgirdwood@...il.com,
        perex@...ex.cz, tiwai@...e.com, digetx@...il.com,
        mperttunen@...dia.com, gregkh@...uxfoundation.org,
        sboyd@...nel.org, robh+dt@...nel.org, mark.rutland@....com,
        pdeschrijver@...dia.com, pgaikwad@...dia.com, spujar@...dia.com,
        josephl@...dia.com, daniel.lezcano@...aro.org,
        mmaddireddy@...dia.com, markz@...dia.com,
        devicetree@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v8 11/22] ASoC: tegra: Add fallback implementation for
 audio mclk

On Mon, Jan 13, 2020 at 11:24:16PM -0800, Sowjanya Komatineni wrote:
> mclk is from clk_out_1 which is part of Tegra PMC block and pmc clocks
> are moved to Tegra PMC driver with pmc as clock provider and using pmc
> clock ids.
> 
> New device tree uses clk_out_1 from pmc clock provider as audio mclk.
> 
> So, this patch adds implementation for mclk fallback to extern1 when
> retrieving mclk returns -ENOENT to be backward compatible of new device
> tree with older kernels.
> 
> Fixes: 110147c8c513 ("ASoC: tegra: always use clk_get() in utility code")
> 
> Tested-by: Dmitry Osipenko <digetx@...il.com>
> Reviewed-by: Dmitry Osipenko <digetx@...il.com>
> Signed-off-by: Sowjanya Komatineni <skomatineni@...dia.com>
> ---
>  sound/soc/tegra/tegra_asoc_utils.c | 18 +++++++++++++++---
>  1 file changed, 15 insertions(+), 3 deletions(-)

There's some inconsistent spelling of PMC in the above, but other than
that:

Acked-by: Thierry Reding <treding@...dia.com>

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