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- To: Herve Codina <herve.codina@xxxxxxxxxxx>, Lee Jones <lee@xxxxxxxxxx>, Rob Herring <robh+dt@xxxxxxxxxx>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@xxxxxxxxxx>, Liam Girdwood <lgirdwood@xxxxxxxxx>, Mark Brown <broonie@xxxxxxxxxx>, Jaroslav Kysela <perex@xxxxxxxx>, Takashi Iwai <tiwai@xxxxxxxx>
- Subject: [PATCH v4 3/5] Documentation: sysfs: Document the Lantiq PEF2256 sysfs entry
- From: Herve Codina <herve.codina@xxxxxxxxxxx>
- Date: Tue, 28 Mar 2023 09:48:09 +0200
- Cc: linux-kernel@xxxxxxxxxxxxxxx, devicetree@xxxxxxxxxxxxxxx, alsa-devel@xxxxxxxxxxxxxxxx, Christophe Leroy <christophe.leroy@xxxxxxxxxx>, Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxx>
- In-reply-to: <20230328074811.594361-1-herve.codina@bootlin.com>
- References: <20230328074811.594361-1-herve.codina@bootlin.com>
Document the "subordinate" sysfs attribute exposed by the PEF2256 driver. Signed-off-by: Herve Codina <herve.codina@xxxxxxxxxxx> --- .../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@xxxxxxxxxxx> +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. -- 2.39.2
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