ARM: dts: aspeed-g5: Fixe gpio-ranges upper limit

[ 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@neuralgames.com>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arm/boot/dts/aspeed-g5.dtsi b/arch/arm/boot/dts/aspeed-g5.dtsi
index d107459..f2e1015 100644 (file)
--- 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;
                        };