[PATCH] ARM: dts: marvell: armada-388: use onnn,pca9655 compatible
From: Rosen Penev <hidden>
Date: 2026-09-05 00:04:35
Also in:
linux-arm-kernel, lkml
Subsystem:
arm/marvell kirkwood and armada 370, 375, 38x, 39x, xp, 3700, 7k/8k, cn9130 soc support, solidrun clearfog support, the rest · Maintainers:
Andrew Lunn, Gregory Clement, Sebastian Hesselbarth, Russell King, Linus Torvalds
The PCA9655s on the ClearFog and Helios4 boards are
register-compatible with the pca9555, and the gpio-pca953x driver has
matched "onnn,pca9655" in its OF match table since
commit 6d49b3a0f351 ("gpio: pca953x: Add support for the On Semi
pca9655"). OF matching is tried before the legacy I2C ID-table
matching that the old comment alluded to, so the restriction no longer
applies. List the real part and drop the stale comment.
The I2C client is now named "pca9655" instead of "pca9555", but the
expander is otherwise identical.
Assisted-by: opencode:big-pickle
Signed-off-by: Rosen Penev <redacted>
---
arch/arm/boot/dts/marvell/armada-388-clearfog.dtsi | 7 +------
arch/arm/boot/dts/marvell/armada-388-helios4.dts | 9 +--------
2 files changed, 2 insertions(+), 14 deletions(-)
diff --git a/arch/arm/boot/dts/marvell/armada-388-clearfog.dtsi b/arch/arm/boot/dts/marvell/armada-388-clearfog.dtsi
index 6321425eb9c6..34f63b6fbc74 100644
--- a/arch/arm/boot/dts/marvell/armada-388-clearfog.dtsi
+++ b/arch/arm/boot/dts/marvell/armada-388-clearfog.dtsi@@ -92,12 +92,7 @@ &i2c0 { * 15-SFP_MOD_DEF0 */ expander0: gpio-expander@20 { - /* - * This is how it should be: - * compatible = "onnn,pca9655", "nxp,pca9555"; - * but you can't do this because of the way I2C works. - */ - compatible = "nxp,pca9555"; + compatible = "onnn,pca9655"; gpio-controller; #gpio-cells = <2>; reg = <0x20>;
diff --git a/arch/arm/boot/dts/marvell/armada-388-helios4.dts b/arch/arm/boot/dts/marvell/armada-388-helios4.dts
index c1c1b16392ef..562fa2e34da1 100644
--- a/arch/arm/boot/dts/marvell/armada-388-helios4.dts
+++ b/arch/arm/boot/dts/marvell/armada-388-helios4.dts@@ -195,14 +195,7 @@ &i2c0 { * 6-USB3 power */ expander0: gpio-expander@20 { - /* - * This is how it should be: - * compatible = "onnn,pca9655", - * "nxp,pca9555"; - * but you can't do this because of - * the way I2C works. - */ - compatible = "nxp,pca9555"; + compatible = "onnn,pca9655"; gpio-controller; #gpio-cells = <2>; reg = <0x20>;
--
2.55.0