ARM: SAMSUNG: Move all platforms to new clocksource driver

This patch moves all Samsung platforms using PWM clocksource from legacy
samsung-time to new samsung-pwm-timer driver.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Mark Brown <broonie@linaro.org>
Tested-by: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/Kconfig

@@ -700,7 +700,7 @@ config ARCH_S3C24XX
 	select ARCH_HAS_CPUFREQ
 	select ARCH_REQUIRE_GPIOLIB
 	select CLKDEV_LOOKUP
-	select CLKSRC_MMIO
+	select CLKSRC_SAMSUNG_PWM
 	select GENERIC_CLOCKEVENTS
 	select GPIO_SAMSUNG
 	select HAVE_CLK
@@ -723,7 +723,7 @@ config ARCH_S3C64XX
 	select ARCH_REQUIRE_GPIOLIB
 	select ARM_VIC
 	select CLKDEV_LOOKUP
-	select CLKSRC_MMIO
+	select CLKSRC_SAMSUNG_PWM
 	select CPU_V6
 	select GENERIC_CLOCKEVENTS
 	select GPIO_SAMSUNG
@@ -748,7 +748,7 @@ config ARCH_S3C64XX
 config ARCH_S5P64X0
 	bool "Samsung S5P6440 S5P6450"
 	select CLKDEV_LOOKUP
-	select CLKSRC_MMIO
+	select CLKSRC_SAMSUNG_PWM
 	select CPU_V6
 	select GENERIC_CLOCKEVENTS
 	select GPIO_SAMSUNG
@@ -767,7 +767,7 @@ config ARCH_S5PC100
 	bool "Samsung S5PC100"
 	select ARCH_REQUIRE_GPIOLIB
 	select CLKDEV_LOOKUP
-	select CLKSRC_MMIO
+	select CLKSRC_SAMSUNG_PWM
 	select CPU_V7
 	select GENERIC_CLOCKEVENTS
 	select GPIO_SAMSUNG
@@ -787,7 +787,7 @@ config ARCH_S5PV210
 	select ARCH_HAS_HOLES_MEMORYMODEL
 	select ARCH_SPARSEMEM_ENABLE
 	select CLKDEV_LOOKUP
-	select CLKSRC_MMIO
+	select CLKSRC_SAMSUNG_PWM
 	select CPU_V7
 	select GENERIC_CLOCKEVENTS
 	select GPIO_SAMSUNG

arch/arm/mach-s3c24xx/Kconfig

@@ -30,7 +30,6 @@ config CPU_S3C2410
 	select S3C2410_CLOCK
 	select ARM_S3C2410_CPUFREQ if ARM_S3C24XX_CPUFREQ
 	select S3C2410_PM if PM
-	select SAMSUNG_HRT
 	select SAMSUNG_WDT_RESET
 	help
 	  Support for S3C2410 and S3C2410A family from the S3C24XX line
@@ -42,7 +41,6 @@ config CPU_S3C2412
 	select CPU_LLSERIAL_S3C2440
 	select S3C2412_DMA if S3C24XX_DMA
 	select S3C2412_PM if PM
-	select SAMSUNG_HRT
 	help
 	  Support for the S3C2412 and S3C2413 SoCs from the S3C24XX line
 
@@ -54,7 +52,6 @@ config CPU_S3C2416
 	select S3C2443_COMMON
 	select S3C2443_DMA if S3C24XX_DMA
 	select SAMSUNG_CLKSRC
-	select SAMSUNG_HRT
 	help
 	  Support for the S3C2416 SoC from the S3C24XX line
 
@@ -65,7 +62,6 @@ config CPU_S3C2440
 	select S3C2410_CLOCK
 	select S3C2410_PM if PM
 	select S3C2440_DMA if S3C24XX_DMA
-	select SAMSUNG_HRT
 	help
 	  Support for S3C2440 Samsung Mobile CPU based systems.
 
@@ -75,7 +71,6 @@ config CPU_S3C2442
 	select CPU_LLSERIAL_S3C2440
 	select S3C2410_CLOCK
 	select S3C2410_PM if PM
-	select SAMSUNG_HRT
 	help
 	  Support for S3C2442 Samsung Mobile CPU based systems.
 
@@ -91,7 +86,6 @@ config CPU_S3C2443
 	select S3C2443_COMMON
 	select S3C2443_DMA if S3C24XX_DMA
 	select SAMSUNG_CLKSRC
-	select SAMSUNG_HRT
 	help
 	  Support for the S3C2443 SoC from the S3C24XX line
 

arch/arm/mach-s3c24xx/common.c

@@ -245,6 +245,22 @@ void __init s3c24xx_init_io(struct map_desc *mach_desc, int size)
 	samsung_pwm_set_platdata(&s3c24xx_pwm_variant);
 }
 
+void __init samsung_set_timer_source(unsigned int event, unsigned int source)
+{
+	s3c24xx_pwm_variant.output_mask = BIT(SAMSUNG_PWM_NUM) - 1;
+	s3c24xx_pwm_variant.output_mask &= ~(BIT(event) | BIT(source));
+}
+
+void __init samsung_timer_init(void)
+{
+	unsigned int timer_irqs[SAMSUNG_PWM_NUM] = {
+		IRQ_TIMER0, IRQ_TIMER1, IRQ_TIMER2, IRQ_TIMER3, IRQ_TIMER4,
+	};
+
+	samsung_pwm_clocksource_init(S3C_VA_TIMER,
+					timer_irqs, &s3c24xx_pwm_variant);
+}
+
 /* Serial port registrations */
 
 #define S3C2410_PA_UART0      (S3C24XX_PA_UART)

arch/arm/mach-s3c64xx/Kconfig

@@ -17,13 +17,11 @@ config PLAT_S3C64XX
 # Configuration options for the S3C6410 CPU
 
 config CPU_S3C6400
-	select SAMSUNG_HRT
 	bool
 	help
 	  Enable S3C6400 CPU support
 
 config CPU_S3C6410
-	select SAMSUNG_HRT
 	bool
 	help
 	  Enable S3C6410 CPU support

arch/arm/mach-s3c64xx/common.c

@@ -43,7 +43,6 @@
 #include <plat/pm.h>
 #include <plat/gpio-cfg.h>
 #include <plat/irq-uart.h>
-#include <plat/irq-vic-timer.h>
 #include <plat/pwm-core.h>
 #include <plat/regs-irqtype.h>
 #include <plat/regs-serial.h>
@@ -158,6 +157,23 @@ static struct samsung_pwm_variant s3c64xx_pwm_variant = {
 	.tclk_mask	= (1 << 7) | (1 << 6) | (1 << 5),
 };
 
+void __init samsung_set_timer_source(unsigned int event, unsigned int source)
+{
+	s3c64xx_pwm_variant.output_mask = BIT(SAMSUNG_PWM_NUM) - 1;
+	s3c64xx_pwm_variant.output_mask &= ~(BIT(event) | BIT(source));
+}
+
+void __init samsung_timer_init(void)
+{
+	unsigned int timer_irqs[SAMSUNG_PWM_NUM] = {
+		IRQ_TIMER0_VIC, IRQ_TIMER1_VIC, IRQ_TIMER2_VIC,
+		IRQ_TIMER3_VIC, IRQ_TIMER4_VIC,
+	};
+
+	samsung_pwm_clocksource_init(S3C_VA_TIMER,
+					timer_irqs, &s3c64xx_pwm_variant);
+}
+
 /* read cpu identification code */
 
 void __init s3c64xx_init_io(struct map_desc *mach_desc, int size)
@@ -206,9 +222,6 @@ void __init s3c64xx_init_irq(u32 vic0_valid, u32 vic1_valid)
 	/* initialise the pair of VICs */
 	vic_init(VA_VIC0, IRQ_VIC0_BASE, vic0_valid, IRQ_VIC0_RESUME);
 	vic_init(VA_VIC1, IRQ_VIC1_BASE, vic1_valid, IRQ_VIC1_RESUME);
-
-	/* add the timer sub-irqs */
-	s3c_init_vic_timer_irq(5, IRQ_TIMER0);
 }
 
 #define eint_offset(irq)	((irq) - IRQ_EINT(0))

arch/arm/mach-s5p64x0/Kconfig

@@ -11,14 +11,12 @@ config CPU_S5P6440
 	bool
 	select S5P_SLEEP if PM
 	select SAMSUNG_DMADEV
-	select SAMSUNG_HRT
 	select SAMSUNG_WAKEMASK if PM
 	help
 	  Enable S5P6440 CPU support
 
 config CPU_S5P6450
 	bool
-	select SAMSUNG_HRT
 	select S5P_SLEEP if PM
 	select SAMSUNG_DMADEV
 	select SAMSUNG_WAKEMASK if PM

arch/arm/mach-s5p64x0/common.c

@@ -166,6 +166,23 @@ static struct samsung_pwm_variant s5p64x0_pwm_variant = {
 	.tclk_mask	= 0,
 };
 
+void __init samsung_set_timer_source(unsigned int event, unsigned int source)
+{
+	s5p64x0_pwm_variant.output_mask = BIT(SAMSUNG_PWM_NUM) - 1;
+	s5p64x0_pwm_variant.output_mask &= ~(BIT(event) | BIT(source));
+}
+
+void __init samsung_timer_init(void)
+{
+	unsigned int timer_irqs[SAMSUNG_PWM_NUM] = {
+		IRQ_TIMER0_VIC, IRQ_TIMER1_VIC, IRQ_TIMER2_VIC,
+		IRQ_TIMER3_VIC, IRQ_TIMER4_VIC,
+	};
+
+	samsung_pwm_clocksource_init(S3C_VA_TIMER,
+					timer_irqs, &s5p64x0_pwm_variant);
+}
+
 /*
  * s5p64x0_map_io
  *

arch/arm/mach-s5pc100/Kconfig

@@ -11,7 +11,6 @@ config CPU_S5PC100
 	bool
 	select S5P_EXT_INT
 	select SAMSUNG_DMADEV
-	select SAMSUNG_HRT
 	help
 	  Enable S5PC100 CPU support
 

arch/arm/mach-s5pc100/common.c

@@ -141,6 +141,23 @@ static struct samsung_pwm_variant s5pc100_pwm_variant = {
 	.tclk_mask	= (1 << 5),
 };
 
+void __init samsung_set_timer_source(unsigned int event, unsigned int source)
+{
+	s5pc100_pwm_variant.output_mask = BIT(SAMSUNG_PWM_NUM) - 1;
+	s5pc100_pwm_variant.output_mask &= ~(BIT(event) | BIT(source));
+}
+
+void __init samsung_timer_init(void)
+{
+	unsigned int timer_irqs[SAMSUNG_PWM_NUM] = {
+		IRQ_TIMER0_VIC, IRQ_TIMER1_VIC, IRQ_TIMER2_VIC,
+		IRQ_TIMER3_VIC, IRQ_TIMER4_VIC,
+	};
+
+	samsung_pwm_clocksource_init(S3C_VA_TIMER,
+					timer_irqs, &s5pc100_pwm_variant);
+}
+
 /*
  * s5pc100_map_io
  *

arch/arm/mach-s5pv210/Kconfig

@@ -15,7 +15,6 @@ config CPU_S5PV210
 	select S5P_PM if PM
 	select S5P_SLEEP if PM
 	select SAMSUNG_DMADEV
-	select SAMSUNG_HRT
 	help
 	  Enable S5PV210 CPU support
 

arch/arm/mach-s5pv210/common.c

@@ -157,6 +157,23 @@ static struct samsung_pwm_variant s5pv210_pwm_variant = {
 	.tclk_mask	= (1 << 5),
 };
 
+void __init samsung_set_timer_source(unsigned int event, unsigned int source)
+{
+	s5pv210_pwm_variant.output_mask = BIT(SAMSUNG_PWM_NUM) - 1;
+	s5pv210_pwm_variant.output_mask &= ~(BIT(event) | BIT(source));
+}
+
+void __init samsung_timer_init(void)
+{
+	unsigned int timer_irqs[SAMSUNG_PWM_NUM] = {
+		IRQ_TIMER0_VIC, IRQ_TIMER1_VIC, IRQ_TIMER2_VIC,
+		IRQ_TIMER3_VIC, IRQ_TIMER4_VIC,
+	};
+
+	samsung_pwm_clocksource_init(S3C_VA_TIMER,
+					timer_irqs, &s5pv210_pwm_variant);
+}
+
 /*
  * s5pv210_map_io
  *

arch/arm/plat-samsung/s5p-irq.c

@@ -19,7 +19,6 @@
 #include <mach/map.h>
 #include <plat/regs-timer.h>
 #include <plat/cpu.h>
-#include <plat/irq-vic-timer.h>
 
 void __init s5p_init_irq(u32 *vic, u32 num_vic)
 {
@@ -30,6 +29,4 @@ void __init s5p_init_irq(u32 *vic, u32 num_vic)
 	for (irq = 0; irq < num_vic; irq++)
 		vic_init(VA_VIC(irq), VIC_BASE(irq), vic[irq], 0);
 #endif
-
-	s3c_init_vic_timer_irq(5, IRQ_TIMER0);
 }