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>
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@ -18,6 +18,8 @@ config ARCH_VEXPRESS
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select POWER_SUPPLY
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select REGULATOR_FIXED_VOLTAGE if REGULATOR
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select VEXPRESS_CONFIG
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select VEXPRESS_SYSCFG
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select MFD_VEXPRESS_SYSREG
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help
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This option enables support for systems using Cortex processor based
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ARM core and logic (FPGA) tiles on the Versatile Express motherboard,
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@ -46,6 +46,7 @@ config VEXPRESS_CONFIG
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bool "Versatile Express configuration bus"
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default y if ARCH_VEXPRESS
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depends on ARM || ARM64
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depends on OF
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select REGMAP
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help
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Platform configuration infrastructure for the ARM Ltd.
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@ -118,7 +118,7 @@ struct regmap *devm_regmap_init_vexpress_config(struct device *dev)
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return regmap;
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}
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EXPORT_SYMBOL_GPL(devm_regmap_init_vexpress_config);
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struct device *vexpress_config_bridge_register(struct device *parent,
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struct vexpress_config_bridge_ops *ops, void *context)
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@ -194,7 +194,7 @@ config CLKSRC_QCOM
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config CLKSRC_VERSATILE
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bool "ARM Versatile (Express) reference platforms clock source"
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depends on GENERIC_SCHED_CLOCK
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depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
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select CLKSRC_OF
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default y if MFD_VEXPRESS_SYSREG
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help
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@ -1229,7 +1229,7 @@ endmenu
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config MFD_VEXPRESS_SYSREG
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bool "Versatile Express System Registers"
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depends on VEXPRESS_CONFIG
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depends on VEXPRESS_CONFIG && GPIOLIB
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default y
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select CLKSRC_MMIO
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select GPIO_GENERIC_PLATFORM
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