Hi Rob, On 2016?05?26? 01:32, Rob Herring wrote: > On Tue, May 24, 2016 at 09:36:14AM +0800, Xing Zheng wrote: >> There are multi codec devices on the RK3399 platform, we can use >> this patch support and control these codecs. >> >> Signed-off-by: Xing Zheng <zhengxing at rock-chips.com> >> --- >> >> Changes in v2: >> - use the FS 256 to set mclks of the max98357a and rt5514 danamically >> - add more sample rate for da7219 >> >> .../sound/rockchip-max98357a-rt5514-da7219.txt | 15 + >> sound/soc/rockchip/Kconfig | 11 + >> sound/soc/rockchip/Makefile | 2 + >> .../rockchip/rockchip_max98357a_rt5514_da7219.c | 333 ++++++++++++++++++++ >> 4 files changed, 361 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/sound/rockchip-max98357a-rt5514-da7219.txt >> create mode 100644 sound/soc/rockchip/rockchip_max98357a_rt5514_da7219.c >> >> diff --git a/Documentation/devicetree/bindings/sound/rockchip-max98357a-rt5514-da7219.txt b/Documentation/devicetree/bindings/sound/rockchip-max98357a-rt5514-da7219.txt >> new file mode 100644 >> index 0000000..5928384 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/sound/rockchip-max98357a-rt5514-da7219.txt >> @@ -0,0 +1,15 @@ >> +ROCKCHIP with MAX98357A/RT5514/DA7219 codecs >> + >> +Required properties: >> +- compatible: "rockchip,rockchip-sound" > This is generic, but the binding seems to be very specific to only 3 > specific codecs. Listing all 3 codecs seems a bit strange. Perhaps a > name related to the board name would be better. Yes, I think that I should rename to rk3399_max98357a_rt5514_da7219.c, it is related to the rk3399 boards. >> +- rockchip,cpu: The phandle of the Rockchip I2S controller that's >> + connected to the codecs > What's the size? always 3? Not always 3, the size is limited by machine driver, The similar approach with mt8173-rt5650-rt5676.txt. >> +- rockchip,codec: The phandle of the MAX98357A/RT5514/DA7219 codecs > Please make the size and ordering clear. Ditto. Thanks. -- - Xing Zheng