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From: Peter Geis <pgwipeout@gmail.com>
To: Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>,
	Peter De Schrijver <pdeschrijver@nvidia.com>,
	Prashant Gaikwad <pgaikwad@nvidia.com>,
	Thierry Reding <thierry.reding@gmail.com>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
	Sameer Pujar <spujar@nvidia.com>,
	Mohan Kumar <mkumard@nvidia.com>
Cc: linux-clk@vger.kernel.org, linux-tegra@vger.kernel.org,
	linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org,
	Peter Geis <pgwipeout@gmail.com>
Subject: [PATCH 0/2] fix tegra-hda on tegra30 devices
Date: Fri, 25 Dec 2020 01:20:24 +0000	[thread overview]
Message-ID: <20201225012025.507803-1-pgwipeout@gmail.com> (raw)

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 previously 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 universally to the tegra-hda device to resolve the issues 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.

Peter Geis (2):
  clk: tegra30: Add hda clock default rates to clock driver
  ALSA: hda/tegra: fix tegra-hda on tegra30 soc

 drivers/clk/tegra/clk-tegra30.c | 2 ++
 sound/pci/hda/hda_tegra.c       | 3 +--
 2 files changed, 3 insertions(+), 2 deletions(-)

-- 
2.25.1


             reply	other threads:[~2020-12-25  1:21 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-25  1:20 Peter Geis [this message]
2020-12-25  1:20 ` [PATCH 1/2] clk: tegra30: Add hda clock default rates to clock driver Peter Geis
2021-01-05 10:12   ` Jon Hunter
2020-12-25  1:20 ` [PATCH 2/2] ALSA: hda/tegra: fix tegra-hda on tegra30 soc Peter Geis
2021-01-05  6:30   ` Sameer Pujar
2021-01-06 21:21     ` Peter Geis
2021-01-08  8:00       ` Sameer Pujar
2021-01-08 10:54         ` Jon Hunter
2021-01-08 11:33           ` Jon Hunter
2021-01-08 12:19             ` Peter Geis
2021-01-04 14:25 ` [PATCH 0/2] fix tegra-hda on tegra30 devices Takashi Iwai

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