This adds the definitions for the BCM2835 I2S driver to the device tree. Some GPIO settings are needed for the correct pin functions.
Signed-off-by: Florian Meier <[email protected]> --- Sorry, I forgot to disable word-wrap again.... arch/arm/boot/dts/bcm2835-rpi-b.dts | 12 +++++++++++- arch/arm/boot/dts/bcm2835.dtsi | 10 ++++++++++ 2 files changed, 21 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/bcm2835-rpi-b.dts b/arch/arm/boot/dts/bcm2835-rpi-b.dts index 2a3b1c1..e83ed2f 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-b.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-b.dts @@ -23,7 +23,7 @@ &gpio { pinctrl-names = "default"; - pinctrl-0 = <&gpioout &alt0 &alt3>; + pinctrl-0 = <&gpioout &alt0 &alt2 &alt3>; gpioout: gpioout { brcm,pins = <6>; @@ -39,6 +39,16 @@ brcm,pins = <48 49 50 51 52 53>; brcm,function = <7>; /* alt3 */ }; + + /* I2S interface */ + alt2: alt2 { + brcm,pins = <28 29 30 31>; + brcm,function = <6>; /* alt2 */ + }; +}; + +&bcm2835_i2s { + status = "okay"; }; &i2c0 { diff --git a/arch/arm/boot/dts/bcm2835.dtsi b/arch/arm/boot/dts/bcm2835.dtsi index 1da6b36..ca2259c 100644 --- a/arch/arm/boot/dts/bcm2835.dtsi +++ b/arch/arm/boot/dts/bcm2835.dtsi @@ -134,6 +134,16 @@ #dma-cells = <1>; brcm,dma-channel-mask = <0x7f35>; }; + + bcm2835_i2s: i2s@7e203000 { + compatible = "brcm,bcm2835-i2s"; + reg = <0x7e203000 0x20>, + <0x7e101098 0x02>; + + dmas = <&dma 2>, + <&dma 3>; + dma-names = "tx", "rx"; + }; }; clocks { -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
