On Fri, Apr 21, 2017 at 07:19:49PM +0200, Sylwester Nawrocki wrote:
This patch adds DT binding documentation for Odroid XU3/4 sound subsystem.
Signed-off-by: Sylwester Nawrocki s.nawrocki@samsung.com
.../devicetree/bindings/sound/samsung,odroid.txt | 57 ++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/samsung,odroid.txt
diff --git a/Documentation/devicetree/bindings/sound/samsung,odroid.txt b/Documentation/devicetree/bindings/sound/samsung,odroid.txt new file mode 100644 index 0000000..c1ac70c --- /dev/null +++ b/Documentation/devicetree/bindings/sound/samsung,odroid.txt @@ -0,0 +1,57 @@ +Samsung Exynos Odroid XU3/XU4 audio complex with MAX98090 codec
+Required properties:
- compatible - "samsung,odroidxu3-audio" - for Odroid XU3 board,
"samsung,odroidxu4-audio" - for Odroid XU4 board
- model - the user-visible name of this sound complex
ASoC will support "label" soon (see graph support). Use that instead.
- 'cpu' subnode with a 'sound-dai' property containing the phandle of the I2S
- controller
- 'codec' subnode with a 'sound-dai' property containing list of phandles
- to the CODEC nodes, first entry must be corresponding to the MAX98090
- CODEC and the second entry must be the phandle of the HDMI IP block node
These are not properties, so move them to a sub-node section.
- clocks - should contain entries matching clock names in the clock-names
- property
- clock-names - should contain following entries:
- "epll" - indicating the EPLL output clock
- "i2s_rclk" - indicating the RCLK (root) clock of the I2S0 controller
At least the 2nd one should be in the i2s node. This node isn't really a h/w block, so it shouldn't have clocks IMO.
- samsung,audio-widgets - this property specifies off-codec audio elements
- like headphones or speakers, for details see widgets.txt
- samsung,audio-routing - a list of the connections between audio
- components; each entry is a pair of strings, the first being the
- connection's sink, the second being the connection's source;
- valid names for sources and sinks are the MAX98090's pins (as
- documented in its binding), and the jacks on the board
- For Odroid X2:
"Headphone Jack", "Mic Jack", "DMIC"- For Odroid U3, XU3:
"Headphone Jack", "Speakers"- For Odroid XU4:
no entries+Example:
+sound {
- compatible = "samsung,odroidxu3-audio";
- samsung,cpu-dai = <&i2s0>;
- samsung,codec-dai = <&max98090>;
Not documented. Nor needed?
- model = "Odroid-XU3";
- samsung,audio-routing =
"Headphone Jack", "HPL","Headphone Jack", "HPR","IN1", "Mic Jack","Mic Jack", "MICBIAS";- clocks = <&clock CLK_FOUT_EPLL>, <&i2s0 CLK_I2S_RCLK_SRC>;
- clock-names = "epll", "sclk_i2s";
- cpu {
sound-dai = <&i2s0 0>;- };
- codec {
sound-dai = <&hdmi>, <&max98090>;- };
+};
1.9.1