[PATCH v2 2/3] dt: ASoC: zx-i2s: Document for the ZTE zx296718 I2S controller
From: shawnguo@kernel.org (Shawn Guo)
Date: 2017-02-07 08:31:04
Also in:
alsa-devel, linux-clk, linux-devicetree, lkml
On Tue, Feb 07, 2017 at 11:02:50AM +0800, Baoyou Xie wrote:
quoted hunk ↗ jump to hunk
This patch documents the devicetree for the ZTE's zx296718 I2S audio controller. Signed-off-by: Baoyou Xie <redacted> --- Documentation/devicetree/bindings/sound/zte,zx-i2s.txt | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)diff --git a/Documentation/devicetree/bindings/sound/zte,zx-i2s.txt b/Documentation/devicetree/bindings/sound/zte,zx-i2s.txt index 7e5aa6f..c405561 100644 --- a/Documentation/devicetree/bindings/sound/zte,zx-i2s.txt +++ b/Documentation/devicetree/bindings/sound/zte,zx-i2s.txt@@ -1,10 +1,12 @@ ZTE ZX296702 I2S controller Required properties: - - compatible : Must be "zte,zx296702-i2s" + - compatible : Should include one of the following strings: + "zte,zx296702-i2s","zte,zx296718-i2s". - reg : Must contain I2S core's registers location and length - clocks : Pairs of phandle and specifier referencing the controller's clocks. - - clock-names: "tx" for the clock to the I2S interface. + - clock-names: "tx" for the wclk, "pclk" for the pclk to the I2S interface. + must contain pclk for zx296718 SoC.
The 'pclk' is really required for zx296702-i2s as well. The driver may happen to work on zx296702 only because 'pclk' is already enabled by someone else before I2S driver starts working. Shawn
- dmas: Pairs of phandle and specifier for the DMA channel that is used by
the core. The core expects two dma channels for transmit.
- dma-names : Must be "tx" and "rx"
--
2.7.4