4.4-stable review patch. If anyone has any objections, please let me know.
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[ Upstream commit 26716ce124fce88f288f07738ef685d5dfe5c13f ]
When the thermal subsystem is a loadable module, the u8500 driver fails to build:
drivers/thermal/built-in.o: In function `db8500_thermal_probe': db8500_thermal.c:(.text+0x96c): undefined reference to `thermal_zone_device_register' drivers/thermal/built-in.o: In function `db8500_thermal_work': db8500_thermal.c:(.text+0xab4): undefined reference to `thermal_zone_device_update'
This changes the symbol to a tristate, so Kconfig can track the dependency correctly.
Signed-off-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Eduardo Valentin edubezval@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mfd/db8500-prcmu.c | 3 +++ drivers/thermal/Kconfig | 4 ++-- 2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index e6e4bacb09ee..12099b09a9a7 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -2048,6 +2048,7 @@ int db8500_prcmu_config_hotmon(u8 low, u8 high)
return 0; } +EXPORT_SYMBOL_GPL(db8500_prcmu_config_hotmon);
static int config_hot_period(u16 val) { @@ -2074,11 +2075,13 @@ int db8500_prcmu_start_temp_sense(u16 cycles32k)
return config_hot_period(cycles32k); } +EXPORT_SYMBOL_GPL(db8500_prcmu_start_temp_sense);
int db8500_prcmu_stop_temp_sense(void) { return config_hot_period(0xFFFF); } +EXPORT_SYMBOL_GPL(db8500_prcmu_stop_temp_sense);
static int prcmu_a9wdog(u8 cmd, u8 d0, u8 d1, u8 d2, u8 d3) { diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig index b556fa8250fc..1def65d2f0b5 100644 --- a/drivers/thermal/Kconfig +++ b/drivers/thermal/Kconfig @@ -237,8 +237,8 @@ config DOVE_THERMAL framework.
config DB8500_THERMAL - bool "DB8500 thermal management" - depends on ARCH_U8500 + tristate "DB8500 thermal management" + depends on MFD_DB8500_PRCMU default y help Adds DB8500 thermal management implementation according to the thermal