[PATCH] arm64: dts: renesas: white-hawk-cpu: Add PCA9654 I/O Expander
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: 2022-09-28 12:48:26
Also in:
linux-renesas-soc
Subsystem:
arm/risc-v/renesas architecture, the rest · Maintainers:
Geert Uytterhoeven, Magnus Damm, Linus Torvalds
Describe the PCA9654 I/O Expander on the White Hawk CPU board.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
Tested on the White Hawk development board using CP97/CP98[1].
To be queued in renesas-devel for v6.2.
[1] "arm64: dts: renesas: r8a779g0: whitehawk-cpu: Add overlay for CP97/98"
https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git/commit/?h=topic/renesas-overlays&id=df07ccc20a99337a5d80f8e8062dcae3626757ab
.../boot/dts/renesas/r8a779g0-white-hawk-cpu.dtsi | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r8a779g0-white-hawk-cpu.dtsi b/arch/arm64/boot/dts/renesas/r8a779g0-white-hawk-cpu.dtsi
index 895f0bd9f754080f..f424b827fcbc7666 100644
--- a/arch/arm64/boot/dts/renesas/r8a779g0-white-hawk-cpu.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779g0-white-hawk-cpu.dtsi@@ -135,6 +135,17 @@ &i2c0 { status = "okay"; clock-frequency = <400000>; + io_expander_a: gpio@20 { + compatible = "onnn,pca9654"; + reg = <0x20>; + interrupt-parent = <&gpio0>; + interrupts = <0 IRQ_TYPE_LEVEL_LOW>; + gpio-controller; + #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; + }; + eeprom@50 { compatible = "rohm,br24g01", "atmel,24c01"; label = "cpu-board";
--
2.25.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel