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[v7,13/15] ARM: dts: bcm2711-rpi-cm4-io: Add RTC on I2C0

Message ID 20240324220854.15010-14-laurent.pinchart@ideasonboard.com (mailing list archive)
State New, archived
Headers show
Series media: Add driver for the Raspberry Pi <5 CSI-2 receiver | expand

Commit Message

Laurent Pinchart March 24, 2024, 10:08 p.m. UTC 
From: Uwe Kleine-König <uwe@kleine-koenig.org>

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@kleine-koenig.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
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 mbox series

Patch

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>;
 };