On Thu, Jun 16, 2016 at 5:11 AM, Maxime Ripard maxime.ripard@free-electrons.com wrote:
Hi everyone,
This is the second version of the I2S support for the controller found in the Allwinner A10 and later SoCs.
Playback has been tested with an UDA1380 on an A20-Olinuxino. Capture is not implemented yet, but will come eventually.
Let me know what you think, Maxime
Changes from v1:
- Fixed bogus indentation and spurious whitespaces / newlines
- Moved the device initialisation in the probe to the startup function
- Disabled the device in shutdown
- Removed function to get wss and sr to inline them in hw_params
- Changed the way to access the divider array
- Checked clk_set_rate return code
- Fixed condition for invalid bclk and mclk dividers
- Added sound-dai-cells to the bindings documentation required properties
Emilio López (1): ARM: sun7i: Add mod1 clock nodes
Maxime Ripard (3): ASoC: sunxi: Add A10 I2S controller binding documentation ASoC: sunxi: Add Allwinner A10 Digital Audio driver ARM: sun7i: Add DAI nodes
.../devicetree/bindings/sound/sun4i-i2s.txt | 34 + arch/arm/boot/dts/sun7i-a20.dtsi | 87 ++- sound/soc/sunxi/Kconfig | 9 + sound/soc/sunxi/Makefile | 2 +- sound/soc/sunxi/sun4i-i2s.c | 703 +++++++++++++++++++++ 5 files changed, 832 insertions(+), 3 deletions(-) create mode 100644 Documentation/devicetree/bindings/sound/sun4i-i2s.txt create mode 100644 sound/soc/sunxi/sun4i-i2s.c
Tested-by: Chen-Yu Tsai wens@csie.org
on a BPI-M1+ with a TI PCM5122-based PiFi DAC+ v2.0, a Raspberry Pi B+ compatible DAC shield.
I kept getting low but audible pops though. Not sure if it's the ad-hoc setup or some other factor.
ChenYu