this is a driver for ST-Ericsson u8500 board(Snowball), with a ARM core inside. so you should compile like this: make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- u8500_defconfig make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- uImage
On 15 November 2012 17:13, Zhang Rui rui.zhang@intel.com wrote:
On Thu, 2012-11-15 at 16:32 +0800, Hongbo Zhang wrote:
On 15 November 2012 16:13, Zhang Rui rui.zhang@intel.com wrote:
On Fri, 2012-11-09 at 19:29 +0800, hongbo.zhang wrote:
From: "hongbo.zhang" hongbo.zhang@linaro.com
This driver is based on the thermal management framework in thermal_sys.c. A thermal zone device is created with the trip points to which cooling devices can be bound, the current cooling device is cpufreq, e.g. CPU frequency is clipped down to cool the CPU, and other cooling devices can be added and bound to the trip points dynamically. The platform specific PRCMU interrupts are used to active thermal update when trip points are reached.
Signed-off-by: hongbo.zhang hongbo.zhang@linaro.com Reviewed-by: Viresh Kumar viresh.kumar@linaro.org Reviewed-by: Francesco Lavra francescolavra.fl@gmail.com
diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig index e1cb6bd..54c8fd0 100644 --- a/drivers/thermal/Kconfig +++ b/drivers/thermal/Kconfig @@ -31,6 +31,26 @@ config CPU_THERMAL and not the ACPI interface. If you want this support, you should say Y here.
+config DB8500_THERMAL
bool "DB8500 thermal management"why is this bool?
platform specific PRCMU interfaces are used, and those interfaces are not exported, so my driver cannot be compiled as a module.
ok. But I still alway get this error message when set DB8500_THERMAL, include/linux/mfd/dbx500-prcmu.h:459:19: error: redefinition of ‘prcmu_abb_read’ include/linux/mfd/db8500-prcmu.h:673:19: note: previous definition of ‘prcmu_abb_read’ was here include/linux/mfd/dbx500-prcmu.h:464:19: error: redefinition of ‘prcmu_abb_write’ include/linux/mfd/db8500-prcmu.h:678:19: note: previous definition of ‘prcmu_abb_write’ was here include/linux/mfd/dbx500-prcmu.h:475:19: error: redefinition of ‘prcmu_config_clkout’ include/linux/mfd/db8500-prcmu.h:643:19: note: previous definition of ‘prcmu_config_clkout’ was here include/linux/mfd/dbx500-prcmu.h:537:19: error: redefinition of ‘prcmu_ac_wake_req’ include/linux/mfd/db8500-prcmu.h:683:19: note: previous definition of ‘prcmu_ac_wake_req’ was here include/linux/mfd/dbx500-prcmu.h:542:20: error: redefinition of ‘prcmu_ac_sleep_req’ include/linux/mfd/db8500-prcmu.h:688:20: note: previous definition of ‘prcmu_ac_sleep_req’ was here
$ grep prcmu_abb_read include/linux/mfd/* include/linux/mfd/db8500-prcmu.h:int prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size); include/linux/mfd/db8500-prcmu.h:static inline int prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size) include/linux/mfd/dbx500-prcmu.h:int prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size); include/linux/mfd/dbx500-prcmu.h:static inline int prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size)
this functions are defined in both db8500-prmcu.h and dbx500-prcmu.h, plus linux/mfd/dbx500-prcmu.h includes linux/mfd/db8500-prcmu.h.
I do not know how it works before, but this is a bug to me.
thanks, rui