Add a new compatible for sun4i-i2s driver to handle some SoCs that have a reset line that must be asserted/deasserted.

This new compatible, "allwinner,sun6i-a31-i2s", requires the property "resets" which should be a phandle to the reset line. Except these differences, the compatible is identical to previous one which will not handle a reset line.

Signed-off-by: Mylène Josserand mylene.josserand@free-electrons.com Acked-by: Maxime Ripard maxime.ripard@free-electrons.com Acked-by: Rob Herring robh@kernel.org --- Documentation/devicetree/bindings/sound/sun4i-i2s.txt | 5 +++++ 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/sun4i-i2s.txt b/Documentation/devicetree/bindings/sound/sun4i-i2s.txt index 7b526ec64991..f4adc58f82ba 100644 --- a/Documentation/devicetree/bindings/sound/sun4i-i2s.txt +++ b/Documentation/devicetree/bindings/sound/sun4i-i2s.txt @@ -7,6 +7,7 @@ Required properties:

- compatible: should be one of the followings - "allwinner,sun4i-a10-i2s" + - "allwinner,sun6i-a31-i2s" - reg: physical base address of the controller and length of memory mapped region. - interrupts: should contain the I2S interrupt. @@ -19,6 +20,10 @@ Required properties: - "mod" : module clock for the I2S controller - #sound-dai-cells : Must be equal to 0

+Required properties for the following compatibles: + - "allwinner,sun6i-a31-i2s" +- resets: phandle to the reset line for this codec + Example:

i2s0: i2s@01c22400 {