Re: [PATCH v3 6/6] ARM: s5pv210: Migrate clock handling to Common Clock Framework
Hi Mateusz,
On Wednesday 28 of August 2013 18:13:04 Mateusz Krawczuk wrote:
> This patch migrates the s5pv210 platform to use new clock driver
> using Common Clock Framework.
>
> Signed-off-by: Mateusz Krawczuk
> ---
> arch/arm/mach-s5pv210/Kconfig | 9 +
> arch/arm/mach-s5pv210/Makefile| 4 ++--
> arch/arm/mach-s5pv210/common.c| 17 +
> arch/arm/mach-s5pv210/common.h| 13 +
> arch/arm/mach-s5pv210/mach-aquila.c | 1 +
> arch/arm/mach-s5pv210/mach-goni.c | 3 ++-
> arch/arm/mach-s5pv210/mach-smdkc110.c | 1 +
> arch/arm/mach-s5pv210/mach-smdkv210.c | 1 +
> arch/arm/mach-s5pv210/mach-torbreck.c | 1 +
> arch/arm/plat-samsung/Kconfig | 2 +-
> arch/arm/plat-samsung/init.c | 2 --
> 11 files changed, 48 insertions(+), 6 deletions(-)
>
> diff --git a/arch/arm/mach-s5pv210/Kconfig
> b/arch/arm/mach-s5pv210/Kconfig index caaedaf..ad4546e 100644
> --- a/arch/arm/mach-s5pv210/Kconfig
> +++ b/arch/arm/mach-s5pv210/Kconfig
> @@ -15,6 +15,7 @@ config CPU_S5PV210
> select S5P_PM if PM
> select S5P_SLEEP if PM
> select SAMSUNG_DMADEV
> + select S5P_CLOCK if !COMMON_CLK
> help
> Enable S5PV210 CPU support
>
> @@ -69,6 +70,14 @@ config S5PV210_SETUP_USB_PHY
> help
> Common setup code for USB PHY controller
>
> +config COMMON_CLK_S5PV210
> + bool "Common Clock Framework support"
> + default y
> + select COMMON_CLK
> + help
> + Enable this option to use new clock driver
> + based on Common Clock Framework.
> +
> menu "S5PC110 Machines"
>
> config MACH_AQUILA
> diff --git a/arch/arm/mach-s5pv210/Makefile
> b/arch/arm/mach-s5pv210/Makefile index 1c4e419..0c67fe2 100644
> --- a/arch/arm/mach-s5pv210/Makefile
> +++ b/arch/arm/mach-s5pv210/Makefile
> @@ -12,8 +12,8 @@ obj-:=
>
> # Core
>
> -obj-y+= common.o clock.o
> -
> +obj-y+= common.o
> +obj-$(CONFIG_S5P_CLOCK) += clock.o
> obj-$(CONFIG_PM) += pm.o
>
> obj-y+= dma.o
> diff --git a/arch/arm/mach-s5pv210/common.c
> b/arch/arm/mach-s5pv210/common.c index 26027a2..a1d86a1 100644
> --- a/arch/arm/mach-s5pv210/common.c
> +++ b/arch/arm/mach-s5pv210/common.c
> @@ -34,7 +34,13 @@
> #include
>
> #include
> +
> +#ifdef CONFIG_S5P_CLOCK
> #include
> +#else
> +#include
> +#endif
> +
> #include
> #include
> #include
> @@ -50,6 +56,14 @@
>
> #include "common.h"
>
> +/* External clock frequency */
> +static unsigned long xusbxti_f, xxti_f;
If the xxti_f variable is not being changed anywhere, it might be a good
idea to drop it completely and pass a constant zero to s5pv210_clk_init().
> +
> +void __init s5pv210_set_xusbxti_freq(unsigned long freq)
> +{
> + xusbxti_f = freq;
> +}
> +
> static const char name_s5pv210[] = "S5PV210/S5PC110";
>
> static struct cpu_table cpu_ids[] __initdata = {
> @@ -229,12 +243,14 @@ void __init s5pv210_map_io(void)
>
> void __init s5pv210_init_clocks(int xtal)
> {
> +#ifdef CONFIG_S5P_CLOCK
> printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
>
> s3c24xx_register_baseclocks(xtal);
> s5p_register_clocks(xtal);
> s5pv210_register_clocks();
> s5pv210_setup_clocks();
> +#endif
> }
>
> void __init s5pv210_init_irq(void)
> @@ -248,6 +264,7 @@ void __init s5pv210_init_irq(void)
> vic[3] = ~0;
>
> s5p_init_irq(vic, ARRAY_SIZE(vic));
> + s5pv210_clk_init(NULL, xxti_f, xusbxti_f, S3C_VA_SYS);
> }
>
> struct bus_type s5pv210_subsys = {
> diff --git a/arch/arm/mach-s5pv210/common.h
> b/arch/arm/mach-s5pv210/common.h index fe1beb5..2db2a15 100644
> --- a/arch/arm/mach-s5pv210/common.h
> +++ b/arch/arm/mach-s5pv210/common.h
> @@ -14,6 +14,19 @@
>
> #include
>
> +void s5pv210_set_xxti_freq(unsigned long freq);
This function is no longer present in common.c, so should be removed here
as well.
> +void s5pv210_set_xusbxti_freq(unsigned long freq);
> +
> +#ifdef CONFIG_COMMON_CLK_S5PV210
> +void s5pv210_clk_init(struct device_node *np,
> + unsigned long xxti_f, unsigned long xusbxti_f,
> + void __iomem *reg_base);
> +#else
> +static inline void s5pv210_clk_init(struct device_node *np,
> + unsigned long xxti_f, unsigned long xusbxti_f,
> + void __iomem *reg_base) {}
> +#endif
> +
> void s5pv210_init_io(struct map_desc *mach_desc, int size);
> void s5pv210_init_irq(void);
>
> diff --git a/arch/arm/mach-s5pv210/mach-aquila.c
> b/arch/arm/mach-s5pv210/mach-aquila.c index ad40ab0..e37a311 100644
> --- a/arch/arm/mach-s5pv210/mach-aquila.c
> +++ b/arch/arm/mach-s5pv210/mach-aquila.c
> @@ -646,6 +646,7 @@ static void __init aquila_map_io(void)
> {
> s5pv210_init_io(NULL, 0);
> s3c24xx_init_clocks(2400);
> + s5pv2
[PATCH v3 6/6] ARM: s5pv210: Migrate clock handling to Common Clock Framework
This patch migrates the s5pv210 platform to use new clock driver
using Common Clock Framework.
Signed-off-by: Mateusz Krawczuk
---
arch/arm/mach-s5pv210/Kconfig | 9 +
arch/arm/mach-s5pv210/Makefile| 4 ++--
arch/arm/mach-s5pv210/common.c| 17 +
arch/arm/mach-s5pv210/common.h| 13 +
arch/arm/mach-s5pv210/mach-aquila.c | 1 +
arch/arm/mach-s5pv210/mach-goni.c | 3 ++-
arch/arm/mach-s5pv210/mach-smdkc110.c | 1 +
arch/arm/mach-s5pv210/mach-smdkv210.c | 1 +
arch/arm/mach-s5pv210/mach-torbreck.c | 1 +
arch/arm/plat-samsung/Kconfig | 2 +-
arch/arm/plat-samsung/init.c | 2 --
11 files changed, 48 insertions(+), 6 deletions(-)
diff --git a/arch/arm/mach-s5pv210/Kconfig b/arch/arm/mach-s5pv210/Kconfig
index caaedaf..ad4546e 100644
--- a/arch/arm/mach-s5pv210/Kconfig
+++ b/arch/arm/mach-s5pv210/Kconfig
@@ -15,6 +15,7 @@ config CPU_S5PV210
select S5P_PM if PM
select S5P_SLEEP if PM
select SAMSUNG_DMADEV
+ select S5P_CLOCK if !COMMON_CLK
help
Enable S5PV210 CPU support
@@ -69,6 +70,14 @@ config S5PV210_SETUP_USB_PHY
help
Common setup code for USB PHY controller
+config COMMON_CLK_S5PV210
+ bool "Common Clock Framework support"
+ default y
+ select COMMON_CLK
+ help
+ Enable this option to use new clock driver
+ based on Common Clock Framework.
+
menu "S5PC110 Machines"
config MACH_AQUILA
diff --git a/arch/arm/mach-s5pv210/Makefile b/arch/arm/mach-s5pv210/Makefile
index 1c4e419..0c67fe2 100644
--- a/arch/arm/mach-s5pv210/Makefile
+++ b/arch/arm/mach-s5pv210/Makefile
@@ -12,8 +12,8 @@ obj- :=
# Core
-obj-y += common.o clock.o
-
+obj-y += common.o
+obj-$(CONFIG_S5P_CLOCK)+= clock.o
obj-$(CONFIG_PM) += pm.o
obj-y += dma.o
diff --git a/arch/arm/mach-s5pv210/common.c b/arch/arm/mach-s5pv210/common.c
index 26027a2..a1d86a1 100644
--- a/arch/arm/mach-s5pv210/common.c
+++ b/arch/arm/mach-s5pv210/common.c
@@ -34,7 +34,13 @@
#include
#include
+
+#ifdef CONFIG_S5P_CLOCK
#include
+#else
+#include
+#endif
+
#include
#include
#include
@@ -50,6 +56,14 @@
#include "common.h"
+/* External clock frequency */
+static unsigned long xusbxti_f, xxti_f;
+
+void __init s5pv210_set_xusbxti_freq(unsigned long freq)
+{
+ xusbxti_f = freq;
+}
+
static const char name_s5pv210[] = "S5PV210/S5PC110";
static struct cpu_table cpu_ids[] __initdata = {
@@ -229,12 +243,14 @@ void __init s5pv210_map_io(void)
void __init s5pv210_init_clocks(int xtal)
{
+#ifdef CONFIG_S5P_CLOCK
printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
s3c24xx_register_baseclocks(xtal);
s5p_register_clocks(xtal);
s5pv210_register_clocks();
s5pv210_setup_clocks();
+#endif
}
void __init s5pv210_init_irq(void)
@@ -248,6 +264,7 @@ void __init s5pv210_init_irq(void)
vic[3] = ~0;
s5p_init_irq(vic, ARRAY_SIZE(vic));
+ s5pv210_clk_init(NULL, xxti_f, xusbxti_f, S3C_VA_SYS);
}
struct bus_type s5pv210_subsys = {
diff --git a/arch/arm/mach-s5pv210/common.h b/arch/arm/mach-s5pv210/common.h
index fe1beb5..2db2a15 100644
--- a/arch/arm/mach-s5pv210/common.h
+++ b/arch/arm/mach-s5pv210/common.h
@@ -14,6 +14,19 @@
#include
+void s5pv210_set_xxti_freq(unsigned long freq);
+void s5pv210_set_xusbxti_freq(unsigned long freq);
+
+#ifdef CONFIG_COMMON_CLK_S5PV210
+void s5pv210_clk_init(struct device_node *np,
+ unsigned long xxti_f, unsigned long xusbxti_f,
+ void __iomem *reg_base);
+#else
+static inline void s5pv210_clk_init(struct device_node *np,
+ unsigned long xxti_f, unsigned long xusbxti_f,
+ void __iomem *reg_base) {}
+#endif
+
void s5pv210_init_io(struct map_desc *mach_desc, int size);
void s5pv210_init_irq(void);
diff --git a/arch/arm/mach-s5pv210/mach-aquila.c
b/arch/arm/mach-s5pv210/mach-aquila.c
index ad40ab0..e37a311 100644
--- a/arch/arm/mach-s5pv210/mach-aquila.c
+++ b/arch/arm/mach-s5pv210/mach-aquila.c
@@ -646,6 +646,7 @@ static void __init aquila_map_io(void)
{
s5pv210_init_io(NULL, 0);
s3c24xx_init_clocks(2400);
+ s5pv210_set_xusbxti_freq(2400);
s3c24xx_init_uarts(aquila_uartcfgs, ARRAY_SIZE(aquila_uartcfgs));
samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
}
diff --git a/arch/arm/mach-s5pv210/mach-goni.c
b/arch/arm/mach-s5pv210/mach-goni.c
index 282d714..a1955e9 100644
--- a/arch/arm/mach-s5pv210/mach-goni.c
+++ b/arch/arm/mach-s5pv210/mach-goni.c
@@ -966,7 +966,8 @@ static void __init goni_sound_init(void)
static void __init goni_map_io(void)
{
s5pv210_init_io(NULL, 0);
- s3c24xx_init_clocks(clk_xusbxti.rate);
+
