From mboxrd@z Thu Jan 1 00:00:00 1970 From: jbrunet@baylibre.com (Jerome Brunet) Date: Wed, 29 Aug 2018 17:00:50 +0200 Subject: [PATCH 3/4] ASoC: meson: add axg pdm input DT binding documentation In-Reply-To: <20180829150051.18190-1-jbrunet@baylibre.com> References: <20180829150051.18190-1-jbrunet@baylibre.com> Message-ID: <20180829150051.18190-4-jbrunet@baylibre.com> To: linus-amlogic@lists.infradead.org List-Id: linus-amlogic.lists.infradead.org Add the DT binding documentation for axg's PDM input Signed-off-by: Jerome Brunet --- .../bindings/sound/amlogic,axg-pdm.txt | 24 +++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/amlogic,axg-pdm.txt diff --git a/Documentation/devicetree/bindings/sound/amlogic,axg-pdm.txt b/Documentation/devicetree/bindings/sound/amlogic,axg-pdm.txt new file mode 100644 index 000000000000..5672d0bc5b16 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/amlogic,axg-pdm.txt @@ -0,0 +1,24 @@ +* Amlogic Audio PDM input + +Required properties: +- compatible: 'amlogic,axg-pdm' +- reg: physical base address of the controller and length of memory + mapped region. +- clocks: list of clock phandle, one for each entry clock-names. +- clock-names: should contain the following: + * "pclk" : peripheral clock. + * "dclk" : pdm digital clock + * "sysclk" : dsp system clock +- #sound-dai-cells: must be 0. + +Example of PDM on the A113 SoC: + +pdm: audio-controller at ff632000 { + compatible = "amlogic,axg-pdm"; + reg = <0x0 0xff632000 0x0 0x34>; + #sound-dai-cells = <0>; + clocks = <&clkc_audio AUD_CLKID_PDM>, + <&clkc_audio AUD_CLKID_PDM_DCLK>, + <&clkc_audio AUD_CLKID_PDM_SYSCLK>; + clock-names = "pclk", "dclk", "sysclk"; +}; -- 2.17.1