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authorArnd Bergmann <arnd@arndb.de>2014-03-15 20:08:48 +0100
committerArnd Bergmann <arnd@arndb.de>2014-03-21 18:26:18 +0100
commit4f579c0391320285ac48551efd9715a0e8366379 (patch)
tree270df7b31e91f30995c66a3704275eb69d04205f
parent4ab75a3f3ddb840cc93446ebbcad8838e337d53f (diff)
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ARM: s5p64x0: fix building with only one soc type
The s5p64x0 platform supports two distinct SoCs, s5p6440 and s5p6450, and in the normal configuration, both are enabled. However if we build a kernel that only enables one of the two, the #ifdef logic in common.c breaks down, as some of the functions declared in the header are defined to NULL using the preprocessor but then defined anyway. This patch cleans up the mess and ensures that each function has either exactly one C declaration and one matching C definition, or we have a NULL defined function pointer but no C definition. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Cc: Tomasz Figa <tomasz.figa@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org>
-rw-r--r--arch/arm/mach-s5p64x0/common.c18
-rw-r--r--arch/arm/mach-s5p64x0/common.h5
2 files changed, 17 insertions, 6 deletions
diff --git a/arch/arm/mach-s5p64x0/common.c b/arch/arm/mach-s5p64x0/common.c
index 42e14f2e7ca7..f07edc304efb 100644
--- a/arch/arm/mach-s5p64x0/common.c
+++ b/arch/arm/mach-s5p64x0/common.c
@@ -205,6 +205,7 @@ void __init s5p64x0_init_io(struct map_desc *mach_desc, int size)
samsung_pwm_set_platdata(&s5p64x0_pwm_variant);
}
+#ifdef CONFIG_CPU_S5P6440
void __init s5p6440_map_io(void)
{
/* initialize any device information early */
@@ -218,7 +219,9 @@ void __init s5p6440_map_io(void)
iotable_init(s5p6440_iodesc, ARRAY_SIZE(s5p6440_iodesc));
}
+#endif
+#ifdef CONFIG_CPU_S5P6450
void __init s5p6450_map_io(void)
{
/* initialize any device information early */
@@ -232,13 +235,14 @@ void __init s5p6450_map_io(void)
iotable_init(s5p6450_iodesc, ARRAY_SIZE(s5p6450_iodesc));
}
+#endif
/*
* s5p64x0_init_clocks
*
* register and setup the CPU clocks
*/
-
+#ifdef CONFIG_CPU_S5P6440
void __init s5p6440_init_clocks(int xtal)
{
printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
@@ -248,7 +252,9 @@ void __init s5p6440_init_clocks(int xtal)
s5p6440_register_clocks();
s5p6440_setup_clocks();
}
+#endif
+#ifdef CONFIG_CPU_S5P6450
void __init s5p6450_init_clocks(int xtal)
{
printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
@@ -258,13 +264,14 @@ void __init s5p6450_init_clocks(int xtal)
s5p6450_register_clocks();
s5p6450_setup_clocks();
}
+#endif
/*
* s5p64x0_init_irq
*
* register the CPU interrupts
*/
-
+#ifdef CONFIG_CPU_S5P6440
void __init s5p6440_init_irq(void)
{
/* S5P6440 supports 2 VIC */
@@ -279,7 +286,9 @@ void __init s5p6440_init_irq(void)
s5p_init_irq(vic, ARRAY_SIZE(vic));
}
+#endif
+#ifdef CONFIG_CPU_S5P6450
void __init s5p6450_init_irq(void)
{
/* S5P6450 supports only 2 VIC */
@@ -294,6 +303,7 @@ void __init s5p6450_init_irq(void)
s5p_init_irq(vic, ARRAY_SIZE(vic));
}
+#endif
struct bus_type s5p64x0_subsys = {
.name = "s5p64x0-core",
@@ -321,6 +331,7 @@ int __init s5p64x0_init(void)
}
/* uart registration process */
+#ifdef CONFIG_CPU_S5P6440
void __init s5p6440_init_uarts(struct s3c2410_uartcfg *cfg, int no)
{
int uart;
@@ -332,11 +343,14 @@ void __init s5p6440_init_uarts(struct s3c2410_uartcfg *cfg, int no)
s3c24xx_init_uartdevs("s3c6400-uart", s5p_uart_resources, cfg, no);
}
+#endif
+#ifdef CONFIG_CPU_S5P6450
void __init s5p6450_init_uarts(struct s3c2410_uartcfg *cfg, int no)
{
s3c24xx_init_uartdevs("s3c6400-uart", s5p_uart_resources, cfg, no);
}
+#endif
#define eint_offset(irq) ((irq) - IRQ_EINT(0))
diff --git a/arch/arm/mach-s5p64x0/common.h b/arch/arm/mach-s5p64x0/common.h
index f3a9b43cba4a..cbe7f3d731d0 100644
--- a/arch/arm/mach-s5p64x0/common.h
+++ b/arch/arm/mach-s5p64x0/common.h
@@ -25,10 +25,10 @@ void s5p6450_register_clocks(void);
void s5p6450_setup_clocks(void);
void s5p64x0_restart(enum reboot_mode mode, const char *cmd);
+extern int s5p64x0_init(void);
#ifdef CONFIG_CPU_S5P6440
-extern int s5p64x0_init(void);
extern void s5p6440_map_io(void);
extern void s5p6440_init_clocks(int xtal);
@@ -38,12 +38,10 @@ extern void s5p6440_init_uarts(struct s3c2410_uartcfg *cfg, int no);
#define s5p6440_init_clocks NULL
#define s5p6440_init_uarts NULL
#define s5p6440_map_io NULL
-#define s5p64x0_init NULL
#endif
#ifdef CONFIG_CPU_S5P6450
-extern int s5p64x0_init(void);
extern void s5p6450_map_io(void);
extern void s5p6450_init_clocks(int xtal);
@@ -53,7 +51,6 @@ extern void s5p6450_init_uarts(struct s3c2410_uartcfg *cfg, int no);
#define s5p6450_init_clocks NULL
#define s5p6450_init_uarts NULL
#define s5p6450_map_io NULL
-#define s5p64x0_init NULL
#endif
#endif /* __ARCH_ARM_MACH_S5P64X0_COMMON_H */