linux-kernel - [PATCH 5.15 112/917] soc: samsung: exynos-pmu: Fix compilation when nothing selects CONFIG_MFD

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Message-Id: <20211115165432.546269612@linuxfoundation.org>
Date:   Mon, 15 Nov 2021 17:53:27 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, David Virag <virag.david003@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Subject: [PATCH 5.15 112/917] soc: samsung: exynos-pmu: Fix compilation when nothing selects CONFIG_MFD_CORE

From: David Virag <virag.david003@...il.com>

commit e37ef6dcdb1f4738b01cec7fb7be46af07816af9 upstream.

Commit 93618e344a5e ("soc: samsung: exynos-pmu: instantiate clkout
driver as MFD") adds a "devm_mfd_add_devices" call in the exynos-pmu
driver which depends on CONFIG_MFD_CORE. If no driver selects that
config, the build will fail if CONFIG_EXYNOS_PMU is enabled with the
following error:

  drivers/soc/samsung/exynos-pmu.c:137: undefined reference to `devm_mfd_add_devices'

Fix this by making CONFIG_EXYNOS_PMU select CONFIG_MFD_CORE.

Fixes: 93618e344a5e ("soc: samsung: exynos-pmu: instantiate clkout driver as MFD")
Cc: <stable@...r.kernel.org>
Signed-off-by: David Virag <virag.david003@...il.com>
Link: https://lore.kernel.org/r/20210909222812.108614-1-virag.david003@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/soc/samsung/Kconfig |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/soc/samsung/Kconfig
+++ b/drivers/soc/samsung/Kconfig
@@ -25,6 +25,7 @@ config EXYNOS_PMU
 	bool "Exynos PMU controller driver" if COMPILE_TEST
 	depends on ARCH_EXYNOS || ((ARM || ARM64) && COMPILE_TEST)
 	select EXYNOS_PMU_ARM_DRIVERS if ARM && ARCH_EXYNOS
+	select MFD_CORE
 
 # There is no need to enable these drivers for ARMv8
 config EXYNOS_PMU_ARM_DRIVERS