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Date:   Tue, 12 Jan 2021 09:22:38 +0100
From:   Takashi Iwai <>
To:     Peter Geis <>
Cc:     Michael Turquette <>,
        Stephen Boyd <>,
        Peter De Schrijver <>,
        Prashant Gaikwad <>,
        Thierry Reding <>,
        Jonathan Hunter <>,
        Jaroslav Kysela <>,
        Takashi Iwai <>,
        Sameer Pujar <>,
        Mohan Kumar <>,,,,
Subject: Re: [PATCH v2 0/2] fix tegra-hda on tegra30 devices

On Fri, 08 Jan 2021 14:59:11 +0100,
Peter Geis wrote:
> The following patches fix tegra-hda on legacy tegra devices.
> Two issues were discovered preventing tegra-hda from functioning:
> -The hda clocks on tegra30 were assigned to clk_m and running at too low
> of a rate to function.
> -The tegra-hda encounters an input/output error when opening a stream.
> Since the only mainline device that used tegra-hda until recently was the
> t124, it is unknown exactly when this was broken. Fortunately a recent
> patch was submitted that fixed the issue only on t194 devices. We can
> apply it to the tegra30-hda device to resolve the issue across the board.
> Note that downstream devices used the spdif device instead of hda for hdmi
> audio. The spdif device lacks a driver on mainline.
> -Checkpatch seems to have issues finding [1], but git show has no issue.
> [1] commit 60019d8c650d ("ALSA: hda/tegra: workaround playback failure on
> Tegra194")
> Changelog:
> v2:
> -Added ack and reviewed-by from Jon
> -Updated fix to apply to tegra30-hda vice universally (Thanks Jon)
> -Updated commit to include comments from hardware team (Thanks Sameer)
> -Cleaned up commit messages
> Peter Geis (2):
>   clk: tegra30: Add hda clock default rates to clock driver
>   ALSA: hda/tegra: fix tegra-hda on tegra30 soc

Shall I apply both patches via sound git tree?

Or, if you want to take through clk tree, let me know.  In that case,
feel free to take my ack:
Acked-by: Takashi Iwai <>



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