Am 12.03.2017 um 07:38 schrieb Michael Zoran:
> Add the DT nodes for the analog audio/headphone jack for the BCM2835
>
> Signed-off-by: Michael Zoran <mzoran@xxxxxxxxxxxx>
> ---
> arch/arm/boot/dts/bcm283x.dtsi | 18 +++++++++++++++++-
> 1 file changed, 17 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi
> index 9798bc9293d8..bf2cd463a6e6 100644
> --- a/arch/arm/boot/dts/bcm283x.dtsi
> +++ b/arch/arm/boot/dts/bcm283x.dtsi
> @@ -338,7 +338,12 @@
> brcm,pins = <42 43>;
> brcm,function = <BCM2835_FSEL_ALT5>;
> };
> - };
> +
> + analog_audio_pins: analog_audio_pins {
> + brcm,pins = <40 45>;
> + brcm,function = <4 4>; /* Alt0 */
Please look at the other pin groups and adapt accordingly (defines, naming).
> + };
> + };
>
> uart0: serial@7e201000 {
> compatible = "brcm,bcm2835-pl011", "arm,pl011", "arm,primecell";
> @@ -464,6 +469,17 @@
> status = "disabled";
> };
>
> + analogaudio: analogaudio@7e20c000 {
> + compatible = "brcm,bcm2835-analog-audio";
> + reg = <0x7e20c000 0x28>;
> + clocks = <&clocks BCM2835_CLOCK_PWM>;
> + assigned-clocks = <&clocks BCM2835_CLOCK_PWM>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&analog_audio_pins>;
This isn't future-proof. Don't define pintrl at SoC level. This should
be done on board level.
AFAIK the Raspberry Pi 3 uses pin 40 and 41.
Thanks
Stefan
> + dmas = <&dma 5>;
> + dma-names = "tx";
> + };
> +
> sdhci: sdhci@7e300000 {
> compatible = "brcm,bcm2835-sdhci";
> reg = <0x7e300000 0x100>;
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