The compatible "fsl,qoriq-gpio" is used by gpio driver: drivers/gpio/gpio-mpc8xxx.c to implement general gpio functionalities. The chip-specific compatible "fsl,ls1043a-gpio" may be used to fix potential gpio IP block errata or other chip-specific gpio issues. Signed-off-by: Liu Gang <Gang.Liu@xxxxxxx> --- v2 changes: Add chip-specific compatible based on Scott's comment. arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi index be72bf5..bf70b27 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi @@ -284,7 +284,7 @@ }; gpio1: gpio@2300000 { - compatible = "fsl,ls1043a-gpio"; + compatible = "fsl,ls1043a-gpio", "fsl,qoriq-gpio"; reg = <0x0 0x2300000 0x0 0x10000>; interrupts = <0 66 0x4>; gpio-controller; @@ -294,7 +294,7 @@ }; gpio2: gpio@2310000 { - compatible = "fsl,ls1043a-gpio"; + compatible = "fsl,ls1043a-gpio", "fsl,qoriq-gpio"; reg = <0x0 0x2310000 0x0 0x10000>; interrupts = <0 67 0x4>; gpio-controller; @@ -304,7 +304,7 @@ }; gpio3: gpio@2320000 { - compatible = "fsl,ls1043a-gpio"; + compatible = "fsl,ls1043a-gpio", "fsl,qoriq-gpio"; reg = <0x0 0x2320000 0x0 0x10000>; interrupts = <0 68 0x4>; gpio-controller; @@ -314,7 +314,7 @@ }; gpio4: gpio@2330000 { - compatible = "fsl,ls1043a-gpio"; + compatible = "fsl,ls1043a-gpio", "fsl,qoriq-gpio"; reg = <0x0 0x2330000 0x0 0x10000>; interrupts = <0 134 0x4>; gpio-controller; -- 2.1.0.27.g96db324 -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html