From: Oscar A Perez <linux@xxxxxxxxxxxxxxx>
[ Upstream commit 89b97c429e2e77d695b5133572ca12ec256a4ea4 ]
According to the AST2500/AST2520 specs, these SoCs support up to 228 GPIO
pins. However, 'gpio-ranges' value in 'aspeed-g5.dtsi' file is currently
setting the upper limit to 220 which isn't allowing access to all their
GPIOs. The correct upper limit value is 232 (actual number is 228 plus a
4-GPIO hole in GPIOAB). Without this patch, GPIOs AC5 and AC6 do not work
correctly on a AST2500 BMC running Linux Kernel v4.19
Fixes: 2039f90d136c ("ARM: dts: aspeed-g5: Add gpio controller to devicetree")
Signed-off-by: Oscar A Perez <linux@xxxxxxxxxxxxxxx>
Reviewed-by: Andrew Jeffery <andrew@xxxxxxxx>
Signed-off-by: Joel Stanley <joel@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/arm/boot/dts/aspeed-g5.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/aspeed-g5.dtsi b/arch/arm/boot/dts/aspeed-g5.dtsi
index d107459fc0f8..f2e1015d75ab 100644
--- a/arch/arm/boot/dts/aspeed-g5.dtsi
+++ b/arch/arm/boot/dts/aspeed-g5.dtsi
@@ -247,7 +247,7 @@
compatible = "aspeed,ast2500-gpio";
reg = <0x1e780000 0x1000>;
interrupts = <20>;
- gpio-ranges = <&pinctrl 0 0 220>;
+ gpio-ranges = <&pinctrl 0 0 232>;
clocks = <&syscon ASPEED_CLK_APB>;
interrupt-controller;
};
--
2.20.1
