From: Uwe Kleine-König <uwe@xxxxxxxxxxxxxxxxx>
The cm4-io board comes with a PCF85063 on I2C0, connected to the GPIO44
and GPIO45 pins. Add it to the device tree.
Signed-off-by: Uwe Kleine-König <uwe@xxxxxxxxxxxxxxxxx>
Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Acked-by: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>
---
Changes since v6:
- Drop unneeded status = "okay"
Changes since v4:
- Use the right part number in the compatible string
- Add the quartz-load-femtofarads property
Changes since v3:
- Separate addition of the RTC to a patch of its own
---
arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts b/arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts
index d7ba02f586d3..7c6a5bdf48aa 100644
--- a/arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts
+++ b/arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts
@@ -101,6 +101,15 @@ &genet {
status = "okay";
};
+&i2c0_1 {
+ rtc@51 {
+ /* Attention: An alarm resets the machine */
+ compatible = "nxp,pcf85063a";
+ reg = <0x51>;
+ quartz-load-femtofarads = <7000>;
+ };
+};
+
&led_act {
gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
};
--
Regards,
Laurent Pinchart
