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From:   Hyunki Koo <hyunki00.koo@gmail.com>
Cc:     Hyunki Koo <hyunki00.koo@samsung.com>,
        Russell King <linux@armlinux.org.uk>,
        Kukjin Kim <kgene@kernel.org>,
        Krzysztof Kozlowski <krzk@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Jason Cooper <jason@lakedaemon.net>,
        Marc Zyngier <maz@kernel.org>,
        linux-arm-kernel@lists.infradead.org,
        linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] irqchip: define EXYNOS_IRQ_COMBINER
Date:   Wed, 25 Dec 2019 06:11:07 +0900
Message-Id: <20191224211108.7128-1-hyunki00.koo@gmail.com>
To:     unlisted-recipients:; (no To-header on input)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

From: Hyunki Koo <hyunki00.koo@samsung.com>

This patch is written to clean up dependency of ARCH_EXYNOS
Not all exynos device have IRQ_COMBINER, especially aarch64 EXYNOS
but it is built for all exynos devices.
Thus add the config for EXYNOS_IRQ_COMBINER
remove direct dependency between ARCH_EXYNOS and exynos-combiner.c
and only selected on the aarch32 devices

Signed-off-by: Hyunki Koo <hyunki00.koo@samsung.com>
---
 arch/arm/mach-exynos/Kconfig | 1 +
 drivers/irqchip/Kconfig      | 7 +++++++
 drivers/irqchip/Makefile     | 2 +-
 3 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index 4ef56571145b..6e7f10c8098a 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -12,6 +12,7 @@ menuconfig ARCH_EXYNOS
 	select ARCH_SUPPORTS_BIG_ENDIAN
 	select ARM_AMBA
 	select ARM_GIC
+	select EXYNOS_IRQ_COMBINER
 	select COMMON_CLK_SAMSUNG
 	select EXYNOS_ASV
 	select EXYNOS_CHIPID
diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index ba152954324b..4c774d85375b 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -499,4 +499,11 @@ config SIFIVE_PLIC
 
 	   If you don't know what to do here, say Y.
 
+config EXYNOS_IRQ_COMBINER
+	bool "Samsung Exynos IRQ combiner support" if COMPILE_TEST
+	depends on (ARCH_EXYNOS && ARM) || COMPILE_TEST
+	help
+	  Say yes here to add support for the IRQ combiner devices embedded
+	  in Samsung Exynos chips.
+
 endmenu
diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile
index e806dda690ea..60d7c7260fc3 100644
--- a/drivers/irqchip/Makefile
+++ b/drivers/irqchip/Makefile
@@ -9,7 +9,7 @@ obj-$(CONFIG_ARCH_BCM2835)		+= irq-bcm2835.o
 obj-$(CONFIG_ARCH_BCM2835)		+= irq-bcm2836.o
 obj-$(CONFIG_DAVINCI_AINTC)		+= irq-davinci-aintc.o
 obj-$(CONFIG_DAVINCI_CP_INTC)		+= irq-davinci-cp-intc.o
-obj-$(CONFIG_ARCH_EXYNOS)		+= exynos-combiner.o
+obj-$(CONFIG_EXYNOS_IRQ_COMBINER)	+= exynos-combiner.o
 obj-$(CONFIG_FARADAY_FTINTC010)		+= irq-ftintc010.o
 obj-$(CONFIG_ARCH_HIP04)		+= irq-hip04.o
 obj-$(CONFIG_ARCH_LPC32XX)		+= irq-lpc32xx.o
-- 
2.17.1