From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
To: Sameer Pujar <spujar@nvidia.com>
Cc: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
thierry.reding@gmail.com, jonathanh@nvidia.com,
oder_chiou@realtek.com, broonie@kernel.org, perex@perex.cz,
tiwai@suse.com, lgirdwood@gmail.com, devicetree@vger.kernel.org,
linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org,
alsa-devel@alsa-project.org
Subject: Re: [PATCH 1/2] ASoC: rt5640: Update MCLK rate in set_sysclk()
Date: Sun, 12 Feb 2023 23:56:46 +0000 [thread overview]
Message-ID: <87lel2phdu.wl-kuninori.morimoto.gx@renesas.com> (raw)
In-Reply-To: <4a45f084-7d33-59d2-8ef9-cb95e29866a3@nvidia.com>
Hi Sameer
> > Simple-card/audio-graph-card both are using asoc_simple_hw_params,
> > and it calls clk_set_rate() for Codec/CPU if it has mclk.
> > But am I misunderstanding ?
> > If it was simple-card-utils side miss, I'm happy to fix it.
>
> The simple-card-utils driver does not populate the clock handle whenever
> the MCLK clock is parsed from CODEC device node. So
> asoc_simple_set_clk_rate() will not update the rate and clock
> enable/disable won't happen either.Initially I had tried to fix this in
> the simple-card-utils itself and it did break few things on other HW.
> Please see [0] for relevant discussion.
>
> Later [1] was pushed to address the issue I was facing that time.
>
> In summary, the suggestion was, clock property should be associated with
> only devices and device driver should own up the clock handling for it.
> The machine driver can just pass the required configuration for it.
Thank you for explanation about your issue,
I think I could understand it.
Thank you for your help !!
Best regards
---
Kuninori Morimoto
next prev parent reply other threads:[~2023-02-12 23:56 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-09 14:36 [PATCH 0/2] Codec support on Jetson AGX Orin Sameer Pujar
2023-02-09 14:36 ` [PATCH 1/2] ASoC: rt5640: Update MCLK rate in set_sysclk() Sameer Pujar
2023-02-09 23:42 ` Kuninori Morimoto
2023-02-10 8:30 ` Sameer Pujar
2023-02-12 23:56 ` Kuninori Morimoto [this message]
2023-02-09 14:36 ` [PATCH 2/2] arm64: tegra: Audio codec support on Jetson AGX Orin Sameer Pujar
2023-02-10 8:45 ` Krzysztof Kozlowski
2023-02-10 9:02 ` Sameer Pujar
2023-02-09 18:36 ` (subset) [PATCH 0/2] Codec " Mark Brown
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