2019-10-31 01:44:22

by Tao Ren

Subject: [PATCH v2] ARM: ASPEED: update default ARCH_NR_GPIO for ARCH_ASPEED

From: Tao Ren <[email protected]>

Increase the max number of GPIOs from default 512 to 1024 for ASPEED
platforms, because Facebook Yamp (AST2500) BMC platform has total 594
GPIO pins (232 provided by ASPEED SoC, and 362 by I/O Expanders).

Signed-off-by: Tao Ren <[email protected]>
Reviewed-by: Linus Walleij <[email protected]>
---
Changes in v2:
- updated Reviewed-by and added ARM SoC and SoC maintainers to
reviewers' list.

arch/arm/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index b7dbeb652cb1..57504f3365c7 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1359,7 +1359,7 @@ config ARCH_NR_GPIO
int
default 2048 if ARCH_SOCFPGA
default 1024 if ARCH_BRCMSTB || ARCH_RENESAS || ARCH_TEGRA || \
- ARCH_ZYNQ
+ ARCH_ZYNQ || ARCH_ASPEED
default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || \
SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210
default 416 if ARCH_SUNXI
--
2.17.1

2019-11-25 00:06:19

by Andrew Jeffery

Subject: Re: [PATCH v2] ARM: ASPEED: update default ARCH_NR_GPIO for ARCH_ASPEED

On Thu, 31 Oct 2019, at 12:10, [email protected] wrote:
> From: Tao Ren <[email protected]>
>
> Increase the max number of GPIOs from default 512 to 1024 for ASPEED
> platforms, because Facebook Yamp (AST2500) BMC platform has total 594
> GPIO pins (232 provided by ASPEED SoC, and 362 by I/O Expanders).
>
> Signed-off-by: Tao Ren <[email protected]>
> Reviewed-by: Linus Walleij <[email protected]>

Hopefully userspace is not making assumptions about sysfs gpiochip numbers.

Acked-by: Andrew Jeffery <[email protected]>