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authorArnd Bergmann <arnd@arndb.de>2014-05-26 17:25:22 +0200
committerArnd Bergmann <arnd@arndb.de>2014-05-26 21:26:52 +0200
commitb33cdd283bd917d431469c29419c2cf2624bd683 (patch)
tree2d686ea140b3d64319af5a349edf0e6a4126dcff /drivers
parent5a3babfcd2354fb1063de2895cab0320fb2027ca (diff)
downloadlinux-b33cdd283bd917d431469c29419c2cf2624bd683.tar.gz
ARM: vexpress: refine dependencies for new code
The versatile express changes for 3.16 introduced a number of
build regressions for randconfig kernels by not tracking dependencies
between the components right.

This patch tries to rectify that:

* the mach-vexpress code cannot link without the syscfg driver,
  which in turn needs MFD_VEXPRESS_SYSREG
* various drivers call devm_regmap_init_vexpress_config(), which
  has to be exported so it can be used by loadable modules
* the configuration bus uses OF DT helper functions that are not
  available to platforms disable CONFIG_OF
* The sysreg driver exports GPIOs through gpiolib, which can
  be disabled on some platforms.
* The clocksource code cannot be built on platforms that don't
  use modern timekeeping but rely on gettimeoffset.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/bus/Kconfig1
-rw-r--r--drivers/bus/vexpress-config.c2
-rw-r--r--drivers/clocksource/Kconfig2
-rw-r--r--drivers/mfd/Kconfig2
4 files changed, 4 insertions, 3 deletions
diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
index f24e79dd51bf..286342778884 100644
--- a/drivers/bus/Kconfig
+++ b/drivers/bus/Kconfig
@@ -46,6 +46,7 @@ config VEXPRESS_CONFIG
 	bool "Versatile Express configuration bus"
 	default y if ARCH_VEXPRESS
 	depends on ARM || ARM64
+	depends on OF
 	select REGMAP
 	help
 	  Platform configuration infrastructure for the ARM Ltd.
diff --git a/drivers/bus/vexpress-config.c b/drivers/bus/vexpress-config.c
index 27a07dfcd626..a64763b6b5fd 100644
--- a/drivers/bus/vexpress-config.c
+++ b/drivers/bus/vexpress-config.c
@@ -118,7 +118,7 @@ struct regmap *devm_regmap_init_vexpress_config(struct device *dev)
 
 	return regmap;
 }
-
+EXPORT_SYMBOL_GPL(devm_regmap_init_vexpress_config);
 
 struct device *vexpress_config_bridge_register(struct device *parent,
 		struct vexpress_config_bridge_ops *ops, void *context)
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 2c27b02f0860..43f1acf0d1d2 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -194,7 +194,7 @@ config CLKSRC_QCOM
 
 config CLKSRC_VERSATILE
 	bool "ARM Versatile (Express) reference platforms clock source"
-	depends on GENERIC_SCHED_CLOCK
+	depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
 	select CLKSRC_OF
 	default y if MFD_VEXPRESS_SYSREG
 	help
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 490fd48a9541..f04ac62dd76b 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -1229,7 +1229,7 @@ endmenu
 
 config MFD_VEXPRESS_SYSREG
 	bool "Versatile Express System Registers"
-	depends on VEXPRESS_CONFIG
+	depends on VEXPRESS_CONFIG && GPIOLIB
 	default y
 	select CLKSRC_MMIO
 	select GPIO_GENERIC_PLATFORM