summaryrefslogtreecommitdiff
path: root/arch/arm/plat-samsung
diff options
context:
space:
mode:
authorBanajit Goswami <banajit.g@samsung.com>2011-02-28 22:24:51 +0530
committerKukjin Kim <kgene.kim@samsung.com>2011-03-03 10:09:58 +0900
commit2ce30137094969123a8846ca4f68c2628ea4a658 (patch)
treed9bd096eedc9cb8b4d977c0342b8aa60d709925b /arch/arm/plat-samsung
parentdd9c1549edef02290edced639f67b54a25abbe0e (diff)
ARM: SAMSUNG: Move PWM device definition from plat-s3c24xx to plat-samsung
This patch does the following:- 1. It moves file pwm.c from plat-s3c24xx to plat-samsung. This will enable all machines with Samsung SoCs to make use of the same code. 2. The device definitions have been separated to a new file dev-pwm.c for better clarity and structure. 3. It will enable all Samsung S3C and S5P series SoC's to use common PWM Kconfig definition. Signed-off-by: Banajit Goswami <banajit.g@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/plat-samsung')
-rw-r--r--arch/arm/plat-samsung/Kconfig13
-rw-r--r--arch/arm/plat-samsung/Makefile1
-rw-r--r--arch/arm/plat-samsung/dev-pwm.c53
-rw-r--r--arch/arm/plat-samsung/pwm.c33
4 files changed, 67 insertions, 33 deletions
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index 32be05cf82a3..be72100b81b4 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -273,6 +273,19 @@ config SAMSUNG_DEV_KEYPAD
help
Compile in platform device definitions for keypad
+config SAMSUNG_DEV_PWM
+ bool
+ default y if ARCH_S3C2410
+ help
+ Compile in platform device definition for PWM Timer
+
+config S3C24XX_PWM
+ bool "PWM device support"
+ select HAVE_PWM
+ help
+ Support for exporting the PWM timer blocks via the pwm device
+ system
+
# DMA
config S3C_DMA
diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile
index 29932f88a8d6..e9de58a2e294 100644
--- a/arch/arm/plat-samsung/Makefile
+++ b/arch/arm/plat-samsung/Makefile
@@ -59,6 +59,7 @@ obj-$(CONFIG_SAMSUNG_DEV_ADC) += dev-adc.o
obj-$(CONFIG_SAMSUNG_DEV_IDE) += dev-ide.o
obj-$(CONFIG_SAMSUNG_DEV_TS) += dev-ts.o
obj-$(CONFIG_SAMSUNG_DEV_KEYPAD) += dev-keypad.o
+obj-$(CONFIG_SAMSUNG_DEV_PWM) += dev-pwm.o
# DMA support
diff --git a/arch/arm/plat-samsung/dev-pwm.c b/arch/arm/plat-samsung/dev-pwm.c
new file mode 100644
index 000000000000..dab47b0e1900
--- /dev/null
+++ b/arch/arm/plat-samsung/dev-pwm.c
@@ -0,0 +1,53 @@
+/* linux/arch/arm/plat-samsung/dev-pwm.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * Copyright (c) 2007 Ben Dooks
+ * Copyright (c) 2008 Simtec Electronics
+ * Ben Dooks <ben@simtec.co.uk>, <ben-linux@fluff.org>
+ *
+ * S3C series device definition for the PWM timer
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+
+#include <mach/irqs.h>
+
+#include <plat/devs.h>
+
+#define TIMER_RESOURCE_SIZE (1)
+
+#define TIMER_RESOURCE(_tmr, _irq) \
+ (struct resource [TIMER_RESOURCE_SIZE]) { \
+ [0] = { \
+ .start = _irq, \
+ .end = _irq, \
+ .flags = IORESOURCE_IRQ \
+ } \
+ }
+
+#define DEFINE_S3C_TIMER(_tmr_no, _irq) \
+ .name = "s3c24xx-pwm", \
+ .id = _tmr_no, \
+ .num_resources = TIMER_RESOURCE_SIZE, \
+ .resource = TIMER_RESOURCE(_tmr_no, _irq), \
+
+/*
+ * since we already have an static mapping for the timer,
+ * we do not bother setting any IO resource for the base.
+ */
+
+struct platform_device s3c_device_timer[] = {
+ [0] = { DEFINE_S3C_TIMER(0, IRQ_TIMER0) },
+ [1] = { DEFINE_S3C_TIMER(1, IRQ_TIMER1) },
+ [2] = { DEFINE_S3C_TIMER(2, IRQ_TIMER2) },
+ [3] = { DEFINE_S3C_TIMER(3, IRQ_TIMER3) },
+ [4] = { DEFINE_S3C_TIMER(4, IRQ_TIMER4) },
+};
+EXPORT_SYMBOL(s3c_device_timer);
diff --git a/arch/arm/plat-samsung/pwm.c b/arch/arm/plat-samsung/pwm.c
index 2eeb49fa056d..f37457c52064 100644
--- a/arch/arm/plat-samsung/pwm.c
+++ b/arch/arm/plat-samsung/pwm.c
@@ -20,10 +20,8 @@
#include <linux/io.h>
#include <linux/pwm.h>
-#include <mach/irqs.h>
#include <mach/map.h>
-#include <plat/devs.h>
#include <plat/regs-timer.h>
struct pwm_device {
@@ -47,37 +45,6 @@ struct pwm_device {
static struct clk *clk_scaler[2];
-/* Standard setup for a timer block. */
-
-#define TIMER_RESOURCE_SIZE (1)
-
-#define TIMER_RESOURCE(_tmr, _irq) \
- (struct resource [TIMER_RESOURCE_SIZE]) { \
- [0] = { \
- .start = _irq, \
- .end = _irq, \
- .flags = IORESOURCE_IRQ \
- } \
- }
-
-#define DEFINE_S3C_TIMER(_tmr_no, _irq) \
- .name = "s3c24xx-pwm", \
- .id = _tmr_no, \
- .num_resources = TIMER_RESOURCE_SIZE, \
- .resource = TIMER_RESOURCE(_tmr_no, _irq), \
-
-/* since we already have an static mapping for the timer, we do not
- * bother setting any IO resource for the base.
- */
-
-struct platform_device s3c_device_timer[] = {
- [0] = { DEFINE_S3C_TIMER(0, IRQ_TIMER0) },
- [1] = { DEFINE_S3C_TIMER(1, IRQ_TIMER1) },
- [2] = { DEFINE_S3C_TIMER(2, IRQ_TIMER2) },
- [3] = { DEFINE_S3C_TIMER(3, IRQ_TIMER3) },
- [4] = { DEFINE_S3C_TIMER(4, IRQ_TIMER4) },
-};
-
static inline int pwm_is_tdiv(struct pwm_device *pwm)
{
return clk_get_parent(pwm->clk) == pwm->clk_div;