Merge tag 'for-3.7-rc1' of git://gitorious.org/linux-pwm/linux-pwm

Pull pwm changes from Thierry Reding:
 "All legacy PWM providers have now been moved to the PWM subsystem.
  The plan for 3.8 is to adapt all board files to provide a lookup table
  for PWM devices in order to get rid of the global namespace.
  Subsequently, users of the legacy pwm_request() and pwm_free()
  functions can be migrated to the new pwm_get() and pwm_put()
  functions.  Once this has been completed, the legacy API and the
  compatibility code in the core can be removed.

  In addition to the above, these changes also add support for
  configuring the polarity of a PWM signal (currently only supported on
  ECAP and EHRPWM) and include a much needed rework of the i.MX driver.
  Managed functions to obtain and release a PWM device (devm_pwm_get()
  and devm_pwm_put()) have been added and the pwm-backlight driver has
  been updated to use them.  If the PWM subsystem hasn't been enabled,
  dummy functions are provided that allow the subsystem to safely
  compile out.

  Some common checks on input parameters have been moved to the core and
  removed from the drivers.  Finally, a small fix corrects the
  description of the PWM specifier's second cell in the device tree
  representation."

* tag 'for-3.7-rc1' of git://gitorious.org/linux-pwm/linux-pwm: (23 commits)
  pwm: dt: Fix description of second PWM cell
  pwm: Check for negative duty-cycle and period
  pwm: Add Ingenic JZ4740 support
  MIPS: JZ4740: Export timer API
  pwm: Move PUV3 PWM driver to PWM framework
  unicore32: pwm: Use managed resource allocations
  unicore32: pwm: Remove unnecessary indirection
  unicore32: pwm: Use module_platform_driver()
  unicore32: pwm: Properly remap memory-mapped registers
  pwm-backlight: Use devm_pwm_get() instead of pwm_get()
  pwm: Move AB8500 PWM driver to PWM framework
  pwm: Fix compilation error when CONFIG_PWM is not defined
  pwm: i.MX: fix clock lookup
  pwm: i.MX: use per clock unconditionally
  pwm: i.MX: add devicetree support
  pwm: i.MX: Use module_platform_driver
  pwm: i.MX: add functions to enable/disable pwm.
  pwm: i.MX: remove unnecessary if in pwm_[en|dis]able
  pwm: i.MX: factor out SoC specific functions
  pwm: pwm-tiehrpwm: Add support for configuring polarity of PWM
  ...

3 files changed, 0 insertions, 180 deletions

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 99c73352c430..b151b7c1bd59 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -60,16 +60,6 @@ config ATMEL_PWM
 	  purposes including software controlled power-efficient backlights
 	  on LCD displays, motor control, and waveform generation.
 
-config AB8500_PWM
-	bool "AB8500 PWM support"
-	depends on AB8500_CORE && ARCH_U8500
-	select HAVE_PWM
-	depends on !PWM
-	help
-	  This driver exports functions to enable/disble/config/free Pulse
-	  Width Modulation in the Analog Baseband Chip AB8500.
-	  It is used by led and backlight driver to control the intensity.
-
 config ATMEL_TCLIB
 	bool "Atmel AT32/AT91 Timer/Counter Library"
 	depends on (AVR32 || ARCH_AT91)
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index b88df7a350b8..2129377c0de6 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -44,7 +44,6 @@ obj-$(CONFIG_VMWARE_BALLOON)	+= vmw_balloon.o
 obj-$(CONFIG_ARM_CHARLCD)	+= arm-charlcd.o
 obj-$(CONFIG_PCH_PHUB)		+= pch_phub.o
 obj-y				+= ti-st/
-obj-$(CONFIG_AB8500_PWM)	+= ab8500-pwm.o
 obj-y				+= lis3lv02d/
 obj-y				+= carma/
 obj-$(CONFIG_USB_SWITCH_FSA9480) += fsa9480.o
diff --git a/drivers/misc/ab8500-pwm.c b/drivers/misc/ab8500-pwm.c
deleted file mode 100644
index d7a9aa14e5d5..000000000000
--- a/drivers/misc/ab8500-pwm.c
+++ /dev/null
@@ -1,169 +0,0 @@
-/*
- * Copyright (C) ST-Ericsson SA 2010
- *
- * Author: Arun R Murthy <arun.murthy@stericsson.com>
- * License terms: GNU General Public License (GPL) version 2
- */
-#include <linux/err.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/pwm.h>
-#include <linux/mfd/abx500.h>
-#include <linux/mfd/abx500/ab8500.h>
-#include <linux/module.h>
-
-/*
- * PWM Out generators
- * Bank: 0x10
- */
-#define AB8500_PWM_OUT_CTRL1_REG	0x60
-#define AB8500_PWM_OUT_CTRL2_REG	0x61
-#define AB8500_PWM_OUT_CTRL7_REG	0x66
-
-/* backlight driver constants */
-#define ENABLE_PWM			1
-#define DISABLE_PWM			0
-
-struct pwm_device {
-	struct device *dev;
-	struct list_head node;
-	const char *label;
-	unsigned int pwm_id;
-};
-
-static LIST_HEAD(pwm_list);
-
-int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns)
-{
-	int ret = 0;
-	unsigned int higher_val, lower_val;
-	u8 reg;
-
-	/*
-	 * get the first 8 bits that are be written to
-	 * AB8500_PWM_OUT_CTRL1_REG[0:7]
-	 */
-	lower_val = duty_ns & 0x00FF;
-	/*
-	 * get bits [9:10] that are to be written to
-	 * AB8500_PWM_OUT_CTRL2_REG[0:1]
-	 */
-	higher_val = ((duty_ns & 0x0300) >> 8);
-
-	reg = AB8500_PWM_OUT_CTRL1_REG + ((pwm->pwm_id - 1) * 2);
-
-	ret = abx500_set_register_interruptible(pwm->dev, AB8500_MISC,
-			reg, (u8)lower_val);
-	if (ret < 0)
-		return ret;
-	ret = abx500_set_register_interruptible(pwm->dev, AB8500_MISC,
-			(reg + 1), (u8)higher_val);
-
-	return ret;
-}
-EXPORT_SYMBOL(pwm_config);
-
-int pwm_enable(struct pwm_device *pwm)
-{
-	int ret;
-
-	ret = abx500_mask_and_set_register_interruptible(pwm->dev,
-				AB8500_MISC, AB8500_PWM_OUT_CTRL7_REG,
-				1 << (pwm->pwm_id-1), ENABLE_PWM);
-	if (ret < 0)
-		dev_err(pwm->dev, "%s: Failed to disable PWM, Error %d\n",
-							pwm->label, ret);
-	return ret;
-}
-EXPORT_SYMBOL(pwm_enable);
-
-void pwm_disable(struct pwm_device *pwm)
-{
-	int ret;
-
-	ret = abx500_mask_and_set_register_interruptible(pwm->dev,
-				AB8500_MISC, AB8500_PWM_OUT_CTRL7_REG,
-				1 << (pwm->pwm_id-1), DISABLE_PWM);
-	if (ret < 0)
-		dev_err(pwm->dev, "%s: Failed to disable PWM, Error %d\n",
-							pwm->label, ret);
-	return;
-}
-EXPORT_SYMBOL(pwm_disable);
-
-struct pwm_device *pwm_request(int pwm_id, const char *label)
-{
-	struct pwm_device *pwm;
-
-	list_for_each_entry(pwm, &pwm_list, node) {
-		if (pwm->pwm_id == pwm_id) {
-			pwm->label = label;
-			pwm->pwm_id = pwm_id;
-			return pwm;
-		}
-	}
-
-	return ERR_PTR(-ENOENT);
-}
-EXPORT_SYMBOL(pwm_request);
-
-void pwm_free(struct pwm_device *pwm)
-{
-	pwm_disable(pwm);
-}
-EXPORT_SYMBOL(pwm_free);
-
-static int __devinit ab8500_pwm_probe(struct platform_device *pdev)
-{
-	struct pwm_device *pwm;
-	/*
-	 * Nothing to be done in probe, this is required to get the
-	 * device which is required for ab8500 read and write
-	 */
-	pwm = kzalloc(sizeof(struct pwm_device), GFP_KERNEL);
-	if (pwm == NULL) {
-		dev_err(&pdev->dev, "failed to allocate memory\n");
-		return -ENOMEM;
-	}
-	pwm->dev = &pdev->dev;
-	pwm->pwm_id = pdev->id;
-	list_add_tail(&pwm->node, &pwm_list);
-	platform_set_drvdata(pdev, pwm);
-	dev_dbg(pwm->dev, "pwm probe successful\n");
-	return 0;
-}
-
-static int __devexit ab8500_pwm_remove(struct platform_device *pdev)
-{
-	struct pwm_device *pwm = platform_get_drvdata(pdev);
-	list_del(&pwm->node);
-	dev_dbg(&pdev->dev, "pwm driver removed\n");
-	kfree(pwm);
-	return 0;
-}
-
-static struct platform_driver ab8500_pwm_driver = {
-	.driver = {
-		.name = "ab8500-pwm",
-		.owner = THIS_MODULE,
-	},
-	.probe = ab8500_pwm_probe,
-	.remove = __devexit_p(ab8500_pwm_remove),
-};
-
-static int __init ab8500_pwm_init(void)
-{
-	return platform_driver_register(&ab8500_pwm_driver);
-}
-
-static void __exit ab8500_pwm_exit(void)
-{
-	platform_driver_unregister(&ab8500_pwm_driver);
-}
-
-subsys_initcall(ab8500_pwm_init);
-module_exit(ab8500_pwm_exit);
-MODULE_AUTHOR("Arun MURTHY <arun.murthy@stericsson.com>");
-MODULE_DESCRIPTION("AB8500 Pulse Width Modulation Driver");
-MODULE_ALIAS("platform:ab8500-pwm");
-MODULE_LICENSE("GPL v2");