[PATCH 5.2 021/131] ARM: exynos: Only build MCPM support if used
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2019-08-05 13:30:24
Also in:
lkml
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
[ Upstream commit 24d2c73ff28bcda48607eacc4bc804002dbf78d9 ]
We get a link error for configurations that enable an Exynos
SoC that does not require MCPM, but then manually enable
MCPM anyway without also turning on the arm-cci:
arch/arm/mach-exynos/mcpm-exynos.o: In function `exynos_pm_power_up_setup':
mcpm-exynos.c:(.text+0x8): undefined reference to `cci_enable_port_for_self'
Change it back to only build the code we actually need, by
introducing a CONFIG_EXYNOS_MCPM that serves the same purpose
as the older CONFIG_EXYNOS5420_MCPM.
Fixes: 2997520c2d4e ("ARM: exynos: Set MCPM as mandatory for Exynos542x/5800 SoCs")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/mach-exynos/Kconfig | 6 +++++-
arch/arm/mach-exynos/Makefile | 2 +-
arch/arm/mach-exynos/suspend.c | 6 +++---
3 files changed, 9 insertions(+), 5 deletions(-)
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index 1c518b8ee520c..21a59efd1a2c4 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig@@ -106,7 +106,7 @@ config SOC_EXYNOS5420 bool "SAMSUNG EXYNOS5420" default y depends on ARCH_EXYNOS5 - select MCPM if SMP + select EXYNOS_MCPM if SMP select ARM_CCI400_PORT_CTRL select ARM_CPU_SUSPEND
@@ -115,6 +115,10 @@ config SOC_EXYNOS5800 default y depends on SOC_EXYNOS5420 +config EXYNOS_MCPM + bool + select MCPM + config EXYNOS_CPU_SUSPEND bool select ARM_CPU_SUSPEND
diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile
index 264dbaa89c3db..5abf3db23912b 100644
--- a/arch/arm/mach-exynos/Makefile
+++ b/arch/arm/mach-exynos/Makefile@@ -18,5 +18,5 @@ plus_sec := $(call as-instr,.arch_extension sec,+sec) AFLAGS_exynos-smc.o :=-Wa,-march=armv7-a$(plus_sec) AFLAGS_sleep.o :=-Wa,-march=armv7-a$(plus_sec) -obj-$(CONFIG_MCPM) += mcpm-exynos.o +obj-$(CONFIG_EXYNOS_MCPM) += mcpm-exynos.o CFLAGS_mcpm-exynos.o += -march=armv7-a
diff --git a/arch/arm/mach-exynos/suspend.c b/arch/arm/mach-exynos/suspend.c
index be122af0de8f8..8b1e6ab8504f0 100644
--- a/arch/arm/mach-exynos/suspend.c
+++ b/arch/arm/mach-exynos/suspend.c@@ -268,7 +268,7 @@ static int exynos5420_cpu_suspend(unsigned long arg) unsigned int cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1); unsigned int cpu = MPIDR_AFFINITY_LEVEL(mpidr, 0); - if (IS_ENABLED(CONFIG_MCPM)) { + if (IS_ENABLED(CONFIG_EXYNOS_MCPM)) { mcpm_set_entry_vector(cpu, cluster, exynos_cpu_resume); mcpm_cpu_suspend(); }
@@ -351,7 +351,7 @@ static void exynos5420_pm_prepare(void) exynos_pm_enter_sleep_mode(); /* ensure at least INFORM0 has the resume address */ - if (IS_ENABLED(CONFIG_MCPM)) + if (IS_ENABLED(CONFIG_EXYNOS_MCPM)) pmu_raw_writel(__pa_symbol(mcpm_entry_point), S5P_INFORM0); tmp = pmu_raw_readl(EXYNOS_L2_OPTION(0));
@@ -455,7 +455,7 @@ static void exynos5420_prepare_pm_resume(void) mpidr = read_cpuid_mpidr(); cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1); - if (IS_ENABLED(CONFIG_MCPM)) + if (IS_ENABLED(CONFIG_EXYNOS_MCPM)) WARN_ON(mcpm_cpu_powered_up()); if (IS_ENABLED(CONFIG_HW_PERF_EVENTS) && cluster != 0) {
--
2.20.1