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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org,
        Necip Fazil Yildiran <fazilyildiran@gmail.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
        Arnd Bergmann <arnd@arndb.de>
Subject: [PATCH 5.15 038/177] pinctrl: samsung: fix missing GPIOLIB on ARM64 Exynos config
Date:   Wed,  4 May 2022 18:43:51 +0200
Message-Id: <20220504153056.337925290@linuxfoundation.org>
In-Reply-To: <20220504153053.873100034@linuxfoundation.org>
References: <20220504153053.873100034@linuxfoundation.org>
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From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

commit ac875df4d854ab13d9c4af682a1837a1214fecec upstream.

The Samsung pinctrl drivers depend on OF_GPIO, which is part of GPIOLIB.
ARMv7 Exynos platform selects GPIOLIB and Samsung pinctrl drivers. ARMv8
Exynos selects only the latter leading to possible wrong configuration
on ARMv8 build:

  WARNING: unmet direct dependencies detected for PINCTRL_EXYNOS
    Depends on [n]: PINCTRL [=y] && OF_GPIO [=n] && (ARCH_EXYNOS [=y] || ARCH_S5PV210 || COMPILE_TEST [=y])
    Selected by [y]:
    - ARCH_EXYNOS [=y]

Always select the GPIOLIB from the Samsung pinctrl drivers to fix the
issue.  This requires removing of OF_GPIO dependency (to avoid recursive
dependency), so add dependency on OF for COMPILE_TEST cases.

Reported-by: Necip Fazil Yildiran <fazilyildiran@gmail.com>
Fixes: eed6b3eb20b9 ("arm64: Split out platform options to separate Kconfig")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20220420141407.470955-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/mach-exynos/Kconfig    |    1 -
 drivers/pinctrl/samsung/Kconfig |   11 ++++-------
 2 files changed, 4 insertions(+), 8 deletions(-)

--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -18,7 +18,6 @@ menuconfig ARCH_EXYNOS
 	select EXYNOS_PMU
 	select EXYNOS_SROM
 	select EXYNOS_PM_DOMAINS if PM_GENERIC_DOMAINS
-	select GPIOLIB
 	select HAVE_ARM_ARCH_TIMER if ARCH_EXYNOS5
 	select HAVE_ARM_SCU if SMP
 	select HAVE_S3C2410_I2C if I2C
--- a/drivers/pinctrl/samsung/Kconfig
+++ b/drivers/pinctrl/samsung/Kconfig
@@ -4,14 +4,13 @@
 #
 config PINCTRL_SAMSUNG
 	bool
-	depends on OF_GPIO
+	select GPIOLIB
 	select PINMUX
 	select PINCONF
 
 config PINCTRL_EXYNOS
 	bool "Pinctrl common driver part for Samsung Exynos SoCs"
-	depends on OF_GPIO
-	depends on ARCH_EXYNOS || ARCH_S5PV210 || COMPILE_TEST
+	depends on ARCH_EXYNOS || ARCH_S5PV210 || (COMPILE_TEST && OF)
 	select PINCTRL_SAMSUNG
 	select PINCTRL_EXYNOS_ARM if ARM && (ARCH_EXYNOS || ARCH_S5PV210)
 	select PINCTRL_EXYNOS_ARM64 if ARM64 && ARCH_EXYNOS
@@ -26,12 +25,10 @@ config PINCTRL_EXYNOS_ARM64
 
 config PINCTRL_S3C24XX
 	bool "Samsung S3C24XX SoC pinctrl driver"
-	depends on OF_GPIO
-	depends on ARCH_S3C24XX || COMPILE_TEST
+	depends on ARCH_S3C24XX || (COMPILE_TEST && OF)
 	select PINCTRL_SAMSUNG
 
 config PINCTRL_S3C64XX
 	bool "Samsung S3C64XX SoC pinctrl driver"
-	depends on OF_GPIO
-	depends on ARCH_S3C64XX || COMPILE_TEST
+	depends on ARCH_S3C64XX || (COMPILE_TEST && OF)
 	select PINCTRL_SAMSUNG