diff options
| author | Markus Pargmann <mpa@pengutronix.de> | 2013-08-19 17:05:55 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-08-20 11:02:00 +0100 |
| commit | 741a509f34d8d702f70d0ad99b8152c57d76961e (patch) | |
| tree | 19a6d0d87e3347331fd0e50cb3760c6eec91bd88 /Documentation | |
| parent | d2a369cb53a3f3733800d5160d60f9a5271fe44c (diff) | |
| download | linux-741a509f34d8d702f70d0ad99b8152c57d76961e.tar.bz2 | |
ASoC: core: Generic ac97 link reset functions
This patch adds generic ac97 reset functions using pincontrol and gpio
parsed from devicetree.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/soc-ac97link.txt | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/soc-ac97link.txt b/Documentation/devicetree/bindings/sound/soc-ac97link.txt new file mode 100644 index 000000000000..80152a87f239 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/soc-ac97link.txt @@ -0,0 +1,28 @@ +AC97 link bindings + +These bindings can be included within any other device node. + +Required properties: + - pinctrl-names: Has to contain following states to setup the correct + pinmuxing for the used gpios: + "ac97-running": AC97-link is active + "ac97-reset": AC97-link reset state + "ac97-warm-reset": AC97-link warm reset state + - ac97-gpios: List of gpio phandles with args in the order ac97-sync, + ac97-sdata, ac97-reset + + +Example: + +ssi { + ... + + pinctrl-names = "default", "ac97-running", "ac97-reset", "ac97-warm-reset"; + pinctrl-0 = <&ac97link_running>; + pinctrl-1 = <&ac97link_running>; + pinctrl-2 = <&ac97link_reset>; + pinctrl-3 = <&ac97link_warm_reset>; + ac97-gpios = <&gpio3 20 0 &gpio3 22 0 &gpio3 28 0>; + + ... +}; |