[PATCH 3/3] thermal: allow u8500-thermal driver to be a module
From: Arnd Bergmann <arnd@arndb.de>
Date: 2016-01-25 16:45:40
Also in:
linux-arm-kernel, lkml
Subsystem:
arm/nomadik/ux500 architectures, multifunction devices (mfd), the rest, thermal · Maintainers:
Linus Walleij, Lee Jones, Linus Torvalds, Rafael J. Wysocki, Daniel Lezcano
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> --- 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 2f4a1279b094..c0a86aeb1733 100644
--- a/drivers/mfd/db8500-prcmu.c
+++ b/drivers/mfd/db8500-prcmu.c@@ -2045,6 +2045,7 @@ 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) {
@@ -2071,11 +2072,13 @@ 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 0852fd028dc9..7c92c09be213 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
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2.7.0