[PATCH 11/12] ARM: stm32mp: allow driver reuse for STM32 MCUs

[Ahmad Fatoum]

Most peripheral driver are usable for both STM32 MPUs and MCUs, but so
far we they were only used for STM32MP1. In preparation for adding
MCU support, introduce a new ARCH_STM32 selected by ARCH_STM32MP and
migrate common drivers to it.

Signed-off-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
---
 arch/arm/Kconfig           | 7 +++++++
 drivers/aiodev/Kconfig     | 2 +-
 drivers/hw_random/Kconfig  | 2 +-
 drivers/i2c/busses/Kconfig | 2 +-
 drivers/mci/Kconfig        | 2 +-
 drivers/mfd/Kconfig        | 2 +-
 drivers/pinctrl/Kconfig    | 2 +-
 drivers/pwm/Kconfig        | 2 +-
 drivers/regulator/Kconfig  | 2 +-
 drivers/serial/Kconfig     | 4 ++--
 drivers/watchdog/Kconfig   | 2 +-
 11 files changed, 18 insertions(+), 11 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index fecbe392333b..299e0ab08049 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -29,6 +29,12 @@ config TEXT_BASE
 
 menu "System Type"
 
+config ARCH_STM32
+	bool
+	help
+	  Selected by both STM32 MCUs and MPUs to restrict driver
+	  visibility.
+
 choice
 	prompt "ARM system type"
 
@@ -185,6 +191,7 @@ config ARCH_S3C64xx
 
 config ARCH_STM32MP
 	bool "STMicroelectronics STM32MP"
+	select ARCH_STM32
 	select CPU_V7
 	select HAVE_PBL_MULTI_IMAGES
 	select CLKDEV_LOOKUP
diff --git a/drivers/aiodev/Kconfig b/drivers/aiodev/Kconfig
index b0af2ebfd382..88a3b9a3431c 100644
--- a/drivers/aiodev/Kconfig
+++ b/drivers/aiodev/Kconfig
@@ -46,7 +46,7 @@ config AM335X_ADC
 
 config STM32_ADC
 	tristate "STM32 ADC driver"
-	depends on ARCH_STM32MP || COMPILE_TEST
+	depends on ARCH_STM32 || COMPILE_TEST
 	help
 	  Support for ADC on STM32.  Supports simple one-shot readings
 	  rather than continuous sampling with DMA, etc.  ADC channels should be
diff --git a/drivers/hw_random/Kconfig b/drivers/hw_random/Kconfig
index 4b4200b5db5c..32b84b028b0e 100644
--- a/drivers/hw_random/Kconfig
+++ b/drivers/hw_random/Kconfig
@@ -17,7 +17,7 @@ config HWRNG_MXC_RNGC
 
 config HWRNG_STM32
 	tristate "STM32 Random Number Generator"
-	depends on ARCH_STM32MP || COMPILE_TEST
+	depends on ARCH_STM32 || COMPILE_TEST
 	help
 	  This driver provides barebox support for the Random Number
 	  Generator hardware found on the STM32 family of MPUs and MCUs.
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index a551df537a69..d4e74552b7ad 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -60,7 +60,7 @@ config I2C_STM32
 	bool "STM32 I2C master driver"
 	select RESET_CONTROLLER
 	depends on HAVE_CLK
-	depends on ARCH_STM32MP || COMPILE_TEST
+	depends on ARCH_STM32 || COMPILE_TEST
 
 config I2C_RK3X
 	tristate "Rockchip RK3xxx I2C adapter"
diff --git a/drivers/mci/Kconfig b/drivers/mci/Kconfig
index 95a73a761ca1..21d53c0c3f0b 100644
--- a/drivers/mci/Kconfig
+++ b/drivers/mci/Kconfig
@@ -206,7 +206,7 @@ config MCI_STM32_SDMMC2
 	bool "STMicroelectronics STM32H7 SD/MMC Host Controller support"
 	depends on ARM_AMBA
 	depends on RESET_CONTROLLER
-	depends on ARCH_STM32MP || COMPILE_TEST
+	depends on ARCH_STM32 || COMPILE_TEST
 	help
 	  This selects support for the SD/MMC controller on STM32H7 SoCs.
 	  If you have a board based on such a SoC and with a SD/MMC slot,
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 160248072ab1..9d4a82a9bbb4 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -93,7 +93,7 @@ config SMSC_SUPERIO
 
 config MFD_STM32_TIMERS
 	bool "STM32 Timers"
-	depends on ARCH_STM32MP || COMPILE_TEST
+	depends on ARCH_STM32 || COMPILE_TEST
 	help
 	  Select this to get regmap support for the timer blocks on STM32
 	  MCUs and MPUs.
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index d3d5c7be23cd..2ff99a39c877 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -102,7 +102,7 @@ config PINCTRL_VF610
 
 config PINCTRL_STM32
 	bool "STM32 pinctrl support" if  COMPILE_TEST
-	default y if ARCH_STM32MP
+	default y if ARCH_STM32
 	help
 	  Pinmux and GPIO controller found on STM32 family
 endif
diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig
index 8219c1eaff7d..0b12278e80e7 100644
--- a/drivers/pwm/Kconfig
+++ b/drivers/pwm/Kconfig
@@ -38,7 +38,7 @@ config PWM_MXS
 
 config PWM_STM32
 	bool "STM32 PWM Support"
-	depends on ARCH_STM32MP || COMPILE_TEST
+	depends on ARCH_STM32 || COMPILE_TEST
 	help
 	  This enables PWM support for STM32 MCUs and MPUs.
 
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 02cea362eb5d..c468e459153b 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -31,7 +31,7 @@ config REGULATOR_STM32_PWR
 
 config REGULATOR_STM32_VREFBUF
 	tristate "STMicroelectronics STM32 VREFBUF"
-	depends on ARCH_STM32MP || COMPILE_TEST
+	depends on ARCH_STM32 || COMPILE_TEST
 	help
 	  This driver supports STMicroelectronics STM32 VREFBUF (voltage
 	  reference buffer) which can be used as voltage reference for
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 8bf9fcd07e1b..9d4a534580ef 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -39,8 +39,8 @@ config DRIVER_SERIAL_IMX
 	bool "i.MX serial driver"
 
 config DRIVER_SERIAL_STM32
-	depends on ARCH_STM32MP
-	bool "stm32mp serial driver"
+	depends on ARCH_STM32
+	bool "stm32 serial driver"
 
 config DRIVER_SERIAL_STM378X
 	depends on ARCH_MXS
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index b8772e016fe0..6f209e096ebe 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -97,7 +97,7 @@ config RAVE_SP_WATCHDOG
 
 config STM32_IWDG_WATCHDOG
 	bool "STM32 IWDG"
-	depends on ARCH_STM32MP || COMPILE_TEST
+	depends on ARCH_STM32 || COMPILE_TEST
 	select MFD_SYSCON
 	help
 	  Enable to support configuration of the STM32's on-SoC IWDG watchdog.
-- 
2.30.2