[PATCH v2 01/13] clk: samsung: s3c64xx: declare s3c64xx_clk_init() in shared header
From: Krzysztof Kozlowski <krzk@kernel.org>
Date: 2020-08-04 19:27:29
Also in:
linux-clk, linux-samsung-soc, linux-watchdog
Subsystem:
arm port, arm/samsung s3c, s5p and exynos arm architectures, common clk framework, samsung soc clock drivers, the rest · Maintainers:
Russell King, Krzysztof Kozlowski, Peter Griffin, Michael Turquette, Stephen Boyd, Sylwester Nawrocki, Chanwoo Choi, Linus Torvalds
The s3c64xx_clk_init() is defined and used by the clk-s3c64xx driver and
also used in the mach-s3c64xx machine code. Move the declaration to a
header to fix W=1 build warning:
drivers/clk/samsung/clk-s3c64xx.c:391:13: warning: no previous prototype for 's3c64xx_clk_init' [-Wmissing-prototypes]
391 | void __init s3c64xx_clk_init(struct device_node *np, unsigned long xtal_f,
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Tomasz Figa <redacted>
---
Changes since v1:
1. Drop __init from header (as suggested by Stephen),
2. Add necessary header and forward declaration (as suggested by
Stephen),
3. Add review tag.
---
MAINTAINERS | 1 +
arch/arm/mach-s3c64xx/common.c | 1 +
arch/arm/mach-s3c64xx/common.h | 2 --
drivers/clk/samsung/clk-s3c64xx.c | 1 +
include/linux/clk/samsung.h | 24 ++++++++++++++++++++++++
5 files changed, 27 insertions(+), 2 deletions(-)
create mode 100644 include/linux/clk/samsung.h
diff --git a/MAINTAINERS b/MAINTAINERS
index a2885ec15bb8..5675fc9bfa00 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS@@ -15294,6 +15294,7 @@ F: Documentation/devicetree/bindings/clock/samsung,s3c* F: Documentation/devicetree/bindings/clock/samsung,s5p* F: drivers/clk/samsung/ F: include/dt-bindings/clock/exynos*.h +F: include/linux/clk/samsung.h SAMSUNG SPI DRIVERS M: Kukjin Kim <kgene@kernel.org>
diff --git a/arch/arm/mach-s3c64xx/common.c b/arch/arm/mach-s3c64xx/common.c
index 13e91074308a..a655bf0c7802 100644
--- a/arch/arm/mach-s3c64xx/common.c
+++ b/arch/arm/mach-s3c64xx/common.c@@ -24,6 +24,7 @@ #include <linux/platform_device.h> #include <linux/reboot.h> #include <linux/io.h> +#include <linux/clk/samsung.h> #include <linux/dma-mapping.h> #include <linux/irq.h> #include <linux/gpio.h>
diff --git a/arch/arm/mach-s3c64xx/common.h b/arch/arm/mach-s3c64xx/common.h
index 03670887a764..f4eca42cdc86 100644
--- a/arch/arm/mach-s3c64xx/common.h
+++ b/arch/arm/mach-s3c64xx/common.h@@ -22,8 +22,6 @@ void s3c64xx_init_io(struct map_desc *mach_desc, int size); void s3c64xx_restart(enum reboot_mode mode, const char *cmd); struct device_node; -void s3c64xx_clk_init(struct device_node *np, unsigned long xtal_f, - unsigned long xusbxti_f, bool is_s3c6400, void __iomem *reg_base); void s3c64xx_set_xtal_freq(unsigned long freq); void s3c64xx_set_xusbxti_freq(unsigned long freq);
diff --git a/drivers/clk/samsung/clk-s3c64xx.c b/drivers/clk/samsung/clk-s3c64xx.c
index b96d33e5eb45..56f95b63f71f 100644
--- a/drivers/clk/samsung/clk-s3c64xx.c
+++ b/drivers/clk/samsung/clk-s3c64xx.c@@ -7,6 +7,7 @@ #include <linux/slab.h> #include <linux/clk-provider.h> +#include <linux/clk/samsung.h> #include <linux/of.h> #include <linux/of_address.h>
diff --git a/include/linux/clk/samsung.h b/include/linux/clk/samsung.h
new file mode 100644
index 000000000000..7a0824b22eed
--- /dev/null
+++ b/include/linux/clk/samsung.h@@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2020 Krzysztof Kozlowski <krzk@kernel.org> + */ + +#ifndef __LINUX_CLK_SAMSUNG_H_ +#define __LINUX_CLK_SAMSUNG_H_ + +#include <linux/compiler_types.h> + +struct device_node; + +#ifdef CONFIG_ARCH_S3C64XX +void s3c64xx_clk_init(struct device_node *np, unsigned long xtal_f, + unsigned long xusbxti_f, bool s3c6400, + void __iomem *base); +#else +static inline void s3c64xx_clk_init(struct device_node *np, + unsigned long xtal_f, + unsigned long xusbxti_f, + bool s3c6400, void __iomem *base) { } +#endif /* CONFIG_ARCH_S3C64XX */ + +#endif /* __LINUX_CLK_SAMSUNG_H_ */
--
2.17.1
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