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From: Herve Codina <herve.codina@bootlin.com>
To: Herve Codina <herve.codina@bootlin.com>,
Lee Jones <lee@kernel.org>, Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>,
Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
alsa-devel@alsa-project.org,
Christophe Leroy <christophe.leroy@csgroup.eu>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Subject: [PATCH v6 4/7] Documentation: sysfs: Document the Lantiq PEF2256
sysfs entry
Date: Mon, 17 Apr 2023 19:15:58 +0200
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| Series |
Add the Lantiq PEF2256 audio support
|
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Commit Message
Herve Codina
April 17, 2023, 5:15 p.m. UTC
Document the "subordinate" sysfs attribute exposed by the PEF2256
driver.
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
---
.../ABI/testing/sysfs-bus-platform-devices-pef2256 | 12 ++++++++++++
1 file changed, 12 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-bus-platform-devices-pef2256
diff --git a/Documentation/ABI/testing/sysfs-bus-platform-devices-pef2256 b/Documentation/ABI/testing/sysfs-bus-platform-devices-pef2256 new file mode 100644 index 000000000000..95ba1ae55daf --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-platform-devices-pef2256 @@ -0,0 +1,12 @@ +What: /sys/bus/platform/devices/*.pef2256/subordinate +KernelVersion: 6.4 +Contact: Herve Codina <herve.codina@bootlin.com> +Description: + (RW) Controls whether the PEF2256 works as subordinate or main + device mode. + + - 0: main device mode + - 1: subordinate mode + + In subordinate device mode it synchronizes on line interface + clock signals. Otherwise, it synchronizes on internal clocks.