linux-kernel - [PATCH 1/2] clk: samsung: Don't build ARMv8 clock drivers on ARMv7

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Message-id: <1447637775-9887-2-git-send-email-k.kozlowski@samsung.com>
Date:	Mon, 16 Nov 2015 10:36:14 +0900
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Sylwester Nawrocki <s.nawrocki@...sung.com>,
	Tomasz Figa <tomasz.figa@...il.com>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	linux-samsung-soc@...r.kernel.org, linux-clk@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Kukjin Kim <kgene@...nel.org>, Olof Johansson <olof@...om.net>,
	Arnd Bergmann <arnd@...db.de>,
	linux-arm-kernel@...ts.infradead.org,
	Kevin Hilman <khilman@...aro.org>
Cc:	Pankaj Dubey <pankaj.dubey@...sung.com>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>
Subject: [PATCH 1/2] clk: samsung: Don't build ARMv8 clock drivers on ARMv7

Currently the Exynos5433 (ARMv8 SoC) clock driver depends on ARCH_EXYNOS
so it is built also on ARMv7. This does not bring any kind of benefit.
There won't be a single kernel image for ARMv7 and ARMv8 SoCs (like
multi_v7 for ARMv7).

Instead build clock drivers only for respective SoC's architecture.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
---
 drivers/clk/samsung/Kconfig  | 13 +++++++++++++
 drivers/clk/samsung/Makefile |  4 ++--
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/samsung/Kconfig b/drivers/clk/samsung/Kconfig
index 84196ecdaa12..5f138fc4d84d 100644
--- a/drivers/clk/samsung/Kconfig
+++ b/drivers/clk/samsung/Kconfig
@@ -2,6 +2,7 @@ config COMMON_CLK_SAMSUNG
 	bool
 	select COMMON_CLK
 
+# ARMv7 SoCs:
 config S3C2410_COMMON_CLK
 	bool
 	select COMMON_CLK_SAMSUNG
@@ -24,3 +25,15 @@ config S3C2443_COMMON_CLK
 	bool
 	select COMMON_CLK_SAMSUNG
 
+# ARMv8 SoCs:
+config EXYNOS5433_COMMON_CLK
+	bool
+	depends on ARM64 || COMPILE_TEST
+	default ARCH_EXYNOS
+	select COMMON_CLK_SAMSUNG
+
+config EXYNOS7_COMMON_CLK
+	bool
+	depends on ARM64 || COMPILE_TEST
+	default ARCH_EXYNOS
+	select COMMON_CLK_SAMSUNG
diff --git a/drivers/clk/samsung/Makefile b/drivers/clk/samsung/Makefile
index 5f6833ea355d..a31332a24ef4 100644
--- a/drivers/clk/samsung/Makefile
+++ b/drivers/clk/samsung/Makefile
@@ -10,11 +10,11 @@ obj-$(CONFIG_SOC_EXYNOS5250)	+= clk-exynos5250.o
 obj-$(CONFIG_SOC_EXYNOS5260)	+= clk-exynos5260.o
 obj-$(CONFIG_SOC_EXYNOS5410)	+= clk-exynos5410.o
 obj-$(CONFIG_SOC_EXYNOS5420)	+= clk-exynos5420.o
-obj-$(CONFIG_ARCH_EXYNOS)	+= clk-exynos5433.o
+obj-$(CONFIG_EXYNOS5433_COMMON_CLK)	+= clk-exynos5433.o
 obj-$(CONFIG_SOC_EXYNOS5440)	+= clk-exynos5440.o
 obj-$(CONFIG_ARCH_EXYNOS)	+= clk-exynos-audss.o
 obj-$(CONFIG_ARCH_EXYNOS)	+= clk-exynos-clkout.o
-obj-$(CONFIG_ARCH_EXYNOS7)	+= clk-exynos7.o
+obj-$(CONFIG_EXYNOS7_COMMON_CLK)	+= clk-exynos7.o
 obj-$(CONFIG_S3C2410_COMMON_CLK)+= clk-s3c2410.o
 obj-$(CONFIG_S3C2410_COMMON_DCLK)+= clk-s3c2410-dclk.o
 obj-$(CONFIG_S3C2412_COMMON_CLK)+= clk-s3c2412.o
-- 
1.9.1

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