From 5028fbad2d57910e8c776ba1c868da0e4f64978f Mon Sep 17 00:00:00 2001 From: Hector Martin Date: Mon, 2 May 2022 18:14:27 +0900 Subject: [PATCH] arm64: Set ARCH_NR_GPIO to 2048 for ARCH_APPLE We're already running into the 512 GPIO limit on t600[01] depending on how many SMC GPIOs we allocate, and a 2-die version could double that. Let's make it 2K to be safe for now. Signed-off-by: Hector Martin Acked-by: Marc Zyngier Link: https://lore.kernel.org/r/20220502091427.28416-1-marcan@marcan.st Signed-off-by: Catalin Marinas --- arch/arm64/Kconfig | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 57c4c995965f..764433588fdd 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -2041,6 +2041,18 @@ config STACKPROTECTOR_PER_TASK def_bool y depends on STACKPROTECTOR && CC_HAVE_STACKPROTECTOR_SYSREG +# The GPIO number here must be sorted by descending number. In case of +# a multiplatform kernel, we just want the highest value required by the +# selected platforms. +config ARCH_NR_GPIO + int + default 2048 if ARCH_APPLE + default 0 + help + Maximum number of GPIOs in the system. + + If unsure, leave the default value. + endmenu menu "Boot options"