Commit 07053105 authored by Oscar A Perez's avatar Oscar A Perez Committed by Greg Kroah-Hartman

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

[ Upstream commit 89b97c42 ]

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: 2039f90d ("ARM: dts: aspeed-g5: Add gpio controller to devicetree")
Signed-off-by: default avatarOscar A Perez <linux@neuralgames.com>
Reviewed-by: default avatarAndrew Jeffery <andrew@aj.id.au>
Signed-off-by: default avatarJoel Stanley <joel@jms.id.au>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 68baab14
......@@ -247,7 +247,7 @@ gpio: gpio@1e780000 {
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;
};
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment