On 06.09.2015 19:57, Eric Anholt wrote:
+ clocks: cprman@7e101000 {
+ compatible = "brcm,bcm2835-cprman";
+ #clock-cells = <1>;
+ reg = <0x7e101000 0x2000>;
+
+ /* CPRMAN derives everything from the platform's
+ * oscillator.
+ */
+ clocks = <&clk_osc>;
+ };
+
This actually breaks i2s because of an overlap in registers:
[ 12.734352] bcm2835-i2s 20203000.i2s: can't request region for
resource [mem 0x20101098-0x2010109f]
[ 12.826571] bcm2835-i2s: probe of 20203000.i2s failed with error -16
here the corresponding section for i2s in /arch/arm/boot/dts/bcm2835.dtsi:
i2s: i2s@7e203000 {
compatible = "brcm,bcm2835-i2s";
reg = <0x7e203000 0x20>,
<0x7e101098 0x02>;
dmas = <&dma 2>,
<&dma 3>;
dma-names = "tx", "rx";
status = "disabled";
};
Note that actually the PCM/I2S reg-range should be (off by 4):
reg = <0x7e203000 0x24>;
(see also: https://github.com/raspberrypi/linux/pull/1079)
Ciao,
Martin
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