hwspinlock: Simplify Kconfig

Every hwspinlock driver is expected to depend on the
hwspinlock core, so it's possible to simplify the
Kconfig, factoring out the HWSPINLOCK dependency.

Reviewed-by: Baolin Wang <baolin.wang7@gmail.com>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Link: https://lore.kernel.org/r/20200414220943.6203-1-ezequiel@collabora.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

drivers/hwspinlock/Kconfig

@@ -6,9 +6,10 @@
 menuconfig HWSPINLOCK
 	bool "Hardware Spinlock drivers"
 
+if HWSPINLOCK
+
 config HWSPINLOCK_OMAP
 	tristate "OMAP Hardware Spinlock device"
-	depends on HWSPINLOCK
 	depends on ARCH_OMAP4 || SOC_OMAP5 || SOC_DRA7XX || SOC_AM33XX || SOC_AM43XX || ARCH_K3 || COMPILE_TEST
 	help
 	  Say y here to support the OMAP Hardware Spinlock device (firstly
@@ -18,7 +19,6 @@ config HWSPINLOCK_OMAP
 
 config HWSPINLOCK_QCOM
 	tristate "Qualcomm Hardware Spinlock device"
-	depends on HWSPINLOCK
 	depends on ARCH_QCOM || COMPILE_TEST
 	select MFD_SYSCON
 	help
@@ -30,7 +30,6 @@ config HWSPINLOCK_QCOM
 
 config HWSPINLOCK_SIRF
 	tristate "SIRF Hardware Spinlock device"
-	depends on HWSPINLOCK
 	depends on ARCH_SIRF || COMPILE_TEST
 	help
 	  Say y here to support the SIRF Hardware Spinlock device, which
@@ -43,7 +42,6 @@ config HWSPINLOCK_SIRF
 config HWSPINLOCK_SPRD
 	tristate "SPRD Hardware Spinlock device"
 	depends on ARCH_SPRD || COMPILE_TEST
-	depends on HWSPINLOCK
 	help
 	  Say y here to support the SPRD Hardware Spinlock device.
 
@@ -52,19 +50,19 @@ config HWSPINLOCK_SPRD
 config HWSPINLOCK_STM32
 	tristate "STM32 Hardware Spinlock device"
 	depends on MACH_STM32MP157 || COMPILE_TEST
-	depends on HWSPINLOCK
 	help
 	  Say y here to support the STM32 Hardware Spinlock device.
 
 	  If unsure, say N.
 
 config HSEM_U8500
 	tristate "STE Hardware Semaphore functionality"
-	depends on HWSPINLOCK
 	depends on ARCH_U8500 || COMPILE_TEST
 	help
 	  Say y here to support the STE Hardware Semaphore functionality, which
 	  provides a synchronisation mechanism for the various processor on the
 	  SoC.
 
 	  If unsure, say N.
+
+endif # HWSPINLOCK