linux-kernel - [PATCH 1/2] pinctrl: stm32: select IRQ_DOMAIN

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Date:   Wed, 12 Jul 2017 08:11:49 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     linux-gpio@...r.kernel.org
Cc:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Arnd Bergmann <arnd@...db.de>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Linus Walleij <linus.walleij@...aro.org>,
        linux-kernel@...r.kernel.org,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 1/2] pinctrl: stm32: select IRQ_DOMAIN_HIERARCHY instead of depends on

Drivers that need IRQ_DOMAIN_HIERARCHY should "select" it, but
drivers/pinctrl/stm32/Kconfig is the only exception that uses
"depends on" syntax.  This prevents GPIO drivers from select'ing
IRQ_DOMAIN_HIERARCHY.

For example, if I add "select IRQ_DOMAIN_HIERARCHY" to GPIO_XGENE_SB,
I get the following recursive dependency error.

drivers/gpio/Kconfig:13:error: recursive dependency detected!
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/gpio/Kconfig:13:	symbol GPIOLIB is selected by PINCTRL_STM32
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/pinctrl/stm32/Kconfig:3:	symbol PINCTRL_STM32 is selected by PINCTRL_STM32F429
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/pinctrl/stm32/Kconfig:11:	symbol PINCTRL_STM32F429 depends on IRQ_DOMAIN_HIERARCHY
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
kernel/irq/Kconfig:67:	symbol IRQ_DOMAIN_HIERARCHY is selected by GPIO_XGENE_SB
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/gpio/Kconfig:502:	symbol GPIO_XGENE_SB depends on GPIOLIB

Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
---

 drivers/pinctrl/stm32/Kconfig | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/pinctrl/stm32/Kconfig b/drivers/pinctrl/stm32/Kconfig
index 3b8026fca057..7e1fe39a56a5 100644
--- a/drivers/pinctrl/stm32/Kconfig
+++ b/drivers/pinctrl/stm32/Kconfig
@@ -6,29 +6,30 @@ config PINCTRL_STM32
 	select PINMUX
 	select GENERIC_PINCONF
 	select GPIOLIB
+	select IRQ_DOMAIN_HIERARCHY
 	select MFD_SYSCON

 config PINCTRL_STM32F429
 	bool "STMicroelectronics STM32F429 pin control" if COMPILE_TEST && !MACH_STM32F429
-	depends on OF && IRQ_DOMAIN_HIERARCHY
+	depends on OF
 	default MACH_STM32F429
 	select PINCTRL_STM32

 config PINCTRL_STM32F469
 	bool "STMicroelectronics STM32F469 pin control" if COMPILE_TEST && !MACH_STM32F469
-	depends on OF && IRQ_DOMAIN_HIERARCHY
+	depends on OF
 	default MACH_STM32F469
 	select PINCTRL_STM32

 config PINCTRL_STM32F746
 	bool "STMicroelectronics STM32F746 pin control" if COMPILE_TEST && !MACH_STM32F746
-	depends on OF && IRQ_DOMAIN_HIERARCHY
+	depends on OF
 	default MACH_STM32F746
 	select PINCTRL_STM32

 config PINCTRL_STM32H743
 	bool "STMicroelectronics STM32H743 pin control" if COMPILE_TEST && !MACH_STM32H743
-	depends on OF && IRQ_DOMAIN_HIERARCHY
+	depends on OF
 	default MACH_STM32H743
 	select PINCTRL_STM32
 endif
-- 
2.7.4