diff mbox

[v5,02/17] leds: port locomo leds driver to new locomo core

Message ID 1433797008-6246-3-git-send-email-dbaryshkov@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Dmitry Baryshkov June 8, 2015, 8:56 p.m. UTC
Adapt locomo leds driver to new locomo core setup.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>
---
 drivers/leds/Kconfig       |   2 +-
 drivers/leds/leds-locomo.c | 117 +++++++++++++++++++++++----------------------
 2 files changed, 61 insertions(+), 58 deletions(-)

Comments

Lee Jones June 9, 2015, 6:57 a.m. UTC | #1
On Mon, 08 Jun 2015, Dmitry Eremin-Solenikov wrote:

> Adapt locomo leds driver to new locomo core setup.
> 
> Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
> Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>

This is missing Bryan's Ack.

> ---
>  drivers/leds/Kconfig       |   2 +-
>  drivers/leds/leds-locomo.c | 117 +++++++++++++++++++++++----------------------
>  2 files changed, 61 insertions(+), 58 deletions(-)
> 
> diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
> index 966b960..d086aac 100644
> --- a/drivers/leds/Kconfig
> +++ b/drivers/leds/Kconfig
> @@ -79,7 +79,7 @@ config LEDS_LM3642
>  config LEDS_LOCOMO
>  	tristate "LED Support for Locomo device"
>  	depends on LEDS_CLASS
> -	depends on SHARP_LOCOMO
> +	depends on MFD_LOCOMO
>  	help
>  	  This option enables support for the LEDs on Sharp Locomo.
>  	  Zaurus models SL-5500 and SL-5600.
> diff --git a/drivers/leds/leds-locomo.c b/drivers/leds/leds-locomo.c
> index 80ba048..a4286e9 100644
> --- a/drivers/leds/leds-locomo.c
> +++ b/drivers/leds/leds-locomo.c
> @@ -9,89 +9,92 @@
>   */
>  
>  #include <linux/kernel.h>
> -#include <linux/init.h>
> -#include <linux/module.h>
> -#include <linux/device.h>
>  #include <linux/leds.h>
> +#include <linux/mfd/locomo.h>
> +#include <linux/module.h>
> +#include <linux/platform_device.h>
> +#include <linux/regmap.h>
>  
> -#include <mach/hardware.h>
> -#include <asm/hardware/locomo.h>
> +struct locomo_led {
> +	struct led_classdev led;
> +	struct regmap *regmap;
> +	unsigned int reg;
> +};
>  
>  static void locomoled_brightness_set(struct led_classdev *led_cdev,
> -				enum led_brightness value, int offset)
> -{
> -	struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->dev->parent);
> -	unsigned long flags;
> -
> -	local_irq_save(flags);
> -	if (value)
> -		locomo_writel(LOCOMO_LPT_TOFH, locomo_dev->mapbase + offset);
> -	else
> -		locomo_writel(LOCOMO_LPT_TOFL, locomo_dev->mapbase + offset);
> -	local_irq_restore(flags);
> -}
> -
> -static void locomoled_brightness_set0(struct led_classdev *led_cdev,
>  				enum led_brightness value)
>  {
> -	locomoled_brightness_set(led_cdev, value, LOCOMO_LPT0);
> +	struct locomo_led *led = container_of(led_cdev, struct locomo_led, led);
> +
> +	regmap_write(led->regmap, led->reg,
> +			value ? LOCOMO_LPT_TOFH : LOCOMO_LPT_TOFL);
>  }
>  
> -static void locomoled_brightness_set1(struct led_classdev *led_cdev,
> -				enum led_brightness value)
> +static int locomo_led_register(
> +		struct device *dev,
> +		struct locomo_led *led,
> +		const char *name,
> +		const char *trigger,
> +		struct regmap *regmap,
> +		unsigned int reg)
>  {
> -	locomoled_brightness_set(led_cdev, value, LOCOMO_LPT1);
> +	led->led.name = name;
> +	led->led.flags = LED_CORE_SUSPENDRESUME;
> +	led->led.default_trigger = trigger;
> +	led->led.brightness_set = locomoled_brightness_set;
> +	led->regmap = regmap;
> +	led->reg = reg;
> +
> +	return devm_led_classdev_register(dev, &led->led);
>  }
>  
> -static struct led_classdev locomo_led0 = {
> -	.name			= "locomo:amber:charge",
> -	.default_trigger	= "main-battery-charging",
> -	.brightness_set		= locomoled_brightness_set0,
> -};
> -
> -static struct led_classdev locomo_led1 = {
> -	.name			= "locomo:green:mail",
> -	.default_trigger	= "nand-disk",
> -	.brightness_set		= locomoled_brightness_set1,
> -};
> -
> -static int locomoled_probe(struct locomo_dev *ldev)
> +static int locomoled_probe(struct platform_device *pdev)
>  {
>  	int ret;
> -
> -	ret = led_classdev_register(&ldev->dev, &locomo_led0);
> +	struct locomo_led *leds;
> +	struct regmap *regmap;
> +
> +	leds = devm_kzalloc(&pdev->dev, 2 * sizeof(*leds), GFP_KERNEL);
> +	if (!leds)
> +		return -ENOMEM;
> +
> +	regmap = dev_get_regmap(pdev->dev.parent, NULL);
> +	if (!regmap)
> +		return -ENODEV;
> +
> +	ret = locomo_led_register(
> +			&pdev->dev,
> +			leds,
> +			"locomo:amber:charge",
> +			"main-battery-charging",
> +			regmap,
> +			LOCOMO_LPT0);
>  	if (ret < 0)
>  		return ret;
>  
> -	ret = led_classdev_register(&ldev->dev, &locomo_led1);
> +	ret = locomo_led_register(
> +			&pdev->dev,
> +			leds + 1,
> +			"locomo:green:mail",
> +			"mmc0",
> +			regmap,
> +			LOCOMO_LPT1);
>  	if (ret < 0)
> -		led_classdev_unregister(&locomo_led0);
> -
> -	return ret;
> -}
> +		return ret;
>  
> -static int locomoled_remove(struct locomo_dev *dev)
> -{
> -	led_classdev_unregister(&locomo_led0);
> -	led_classdev_unregister(&locomo_led1);
>  	return 0;
>  }
>  
> -static struct locomo_driver locomoled_driver = {
> -	.drv = {
> -		.name = "locomoled"
> +static struct platform_driver locomoled_driver = {
> +	.driver = {
> +		.name = "locomo-led"
>  	},
> -	.devid	= LOCOMO_DEVID_LED,
>  	.probe	= locomoled_probe,
> -	.remove	= locomoled_remove,
>  };
>  
> -static int __init locomoled_init(void)
> -{
> -	return locomo_driver_register(&locomoled_driver);
> -}
> -module_init(locomoled_init);
> +module_platform_driver(locomoled_driver);
>  
>  MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
>  MODULE_DESCRIPTION("Locomo LED driver");
>  MODULE_LICENSE("GPL");
> +MODULE_ALIAS("platform:locomo-led");
Dmitry Baryshkov June 9, 2015, 8:08 a.m. UTC | #2
2015-06-09 9:57 GMT+03:00 Lee Jones <lee.jones@linaro.org>:
> On Mon, 08 Jun 2015, Dmitry Eremin-Solenikov wrote:
>
>> Adapt locomo leds driver to new locomo core setup.
>>
>> Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
>> Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>
>
> This is missing Bryan's Ack.

Jacek is listed as a co-maintainer of the LEDS subsystem, so I assumed
that his acked-by is enough.

>
>> ---
>>  drivers/leds/Kconfig       |   2 +-
>>  drivers/leds/leds-locomo.c | 117 +++++++++++++++++++++++----------------------
>>  2 files changed, 61 insertions(+), 58 deletions(-)
>>
>> diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
>> index 966b960..d086aac 100644
>> --- a/drivers/leds/Kconfig
>> +++ b/drivers/leds/Kconfig
>> @@ -79,7 +79,7 @@ config LEDS_LM3642
>>  config LEDS_LOCOMO
>>       tristate "LED Support for Locomo device"
>>       depends on LEDS_CLASS
>> -     depends on SHARP_LOCOMO
>> +     depends on MFD_LOCOMO
>>       help
>>         This option enables support for the LEDs on Sharp Locomo.
>>         Zaurus models SL-5500 and SL-5600.
>> diff --git a/drivers/leds/leds-locomo.c b/drivers/leds/leds-locomo.c
>> index 80ba048..a4286e9 100644
>> --- a/drivers/leds/leds-locomo.c
>> +++ b/drivers/leds/leds-locomo.c
>> @@ -9,89 +9,92 @@
>>   */
>>
>>  #include <linux/kernel.h>
>> -#include <linux/init.h>
>> -#include <linux/module.h>
>> -#include <linux/device.h>
>>  #include <linux/leds.h>
>> +#include <linux/mfd/locomo.h>
>> +#include <linux/module.h>
>> +#include <linux/platform_device.h>
>> +#include <linux/regmap.h>
>>
>> -#include <mach/hardware.h>
>> -#include <asm/hardware/locomo.h>
>> +struct locomo_led {
>> +     struct led_classdev led;
>> +     struct regmap *regmap;
>> +     unsigned int reg;
>> +};
>>
>>  static void locomoled_brightness_set(struct led_classdev *led_cdev,
>> -                             enum led_brightness value, int offset)
>> -{
>> -     struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->dev->parent);
>> -     unsigned long flags;
>> -
>> -     local_irq_save(flags);
>> -     if (value)
>> -             locomo_writel(LOCOMO_LPT_TOFH, locomo_dev->mapbase + offset);
>> -     else
>> -             locomo_writel(LOCOMO_LPT_TOFL, locomo_dev->mapbase + offset);
>> -     local_irq_restore(flags);
>> -}
>> -
>> -static void locomoled_brightness_set0(struct led_classdev *led_cdev,
>>                               enum led_brightness value)
>>  {
>> -     locomoled_brightness_set(led_cdev, value, LOCOMO_LPT0);
>> +     struct locomo_led *led = container_of(led_cdev, struct locomo_led, led);
>> +
>> +     regmap_write(led->regmap, led->reg,
>> +                     value ? LOCOMO_LPT_TOFH : LOCOMO_LPT_TOFL);
>>  }
>>
>> -static void locomoled_brightness_set1(struct led_classdev *led_cdev,
>> -                             enum led_brightness value)
>> +static int locomo_led_register(
>> +             struct device *dev,
>> +             struct locomo_led *led,
>> +             const char *name,
>> +             const char *trigger,
>> +             struct regmap *regmap,
>> +             unsigned int reg)
>>  {
>> -     locomoled_brightness_set(led_cdev, value, LOCOMO_LPT1);
>> +     led->led.name = name;
>> +     led->led.flags = LED_CORE_SUSPENDRESUME;
>> +     led->led.default_trigger = trigger;
>> +     led->led.brightness_set = locomoled_brightness_set;
>> +     led->regmap = regmap;
>> +     led->reg = reg;
>> +
>> +     return devm_led_classdev_register(dev, &led->led);
>>  }
>>
>> -static struct led_classdev locomo_led0 = {
>> -     .name                   = "locomo:amber:charge",
>> -     .default_trigger        = "main-battery-charging",
>> -     .brightness_set         = locomoled_brightness_set0,
>> -};
>> -
>> -static struct led_classdev locomo_led1 = {
>> -     .name                   = "locomo:green:mail",
>> -     .default_trigger        = "nand-disk",
>> -     .brightness_set         = locomoled_brightness_set1,
>> -};
>> -
>> -static int locomoled_probe(struct locomo_dev *ldev)
>> +static int locomoled_probe(struct platform_device *pdev)
>>  {
>>       int ret;
>> -
>> -     ret = led_classdev_register(&ldev->dev, &locomo_led0);
>> +     struct locomo_led *leds;
>> +     struct regmap *regmap;
>> +
>> +     leds = devm_kzalloc(&pdev->dev, 2 * sizeof(*leds), GFP_KERNEL);
>> +     if (!leds)
>> +             return -ENOMEM;
>> +
>> +     regmap = dev_get_regmap(pdev->dev.parent, NULL);
>> +     if (!regmap)
>> +             return -ENODEV;
>> +
>> +     ret = locomo_led_register(
>> +                     &pdev->dev,
>> +                     leds,
>> +                     "locomo:amber:charge",
>> +                     "main-battery-charging",
>> +                     regmap,
>> +                     LOCOMO_LPT0);
>>       if (ret < 0)
>>               return ret;
>>
>> -     ret = led_classdev_register(&ldev->dev, &locomo_led1);
>> +     ret = locomo_led_register(
>> +                     &pdev->dev,
>> +                     leds + 1,
>> +                     "locomo:green:mail",
>> +                     "mmc0",
>> +                     regmap,
>> +                     LOCOMO_LPT1);
>>       if (ret < 0)
>> -             led_classdev_unregister(&locomo_led0);
>> -
>> -     return ret;
>> -}
>> +             return ret;
>>
>> -static int locomoled_remove(struct locomo_dev *dev)
>> -{
>> -     led_classdev_unregister(&locomo_led0);
>> -     led_classdev_unregister(&locomo_led1);
>>       return 0;
>>  }
>>
>> -static struct locomo_driver locomoled_driver = {
>> -     .drv = {
>> -             .name = "locomoled"
>> +static struct platform_driver locomoled_driver = {
>> +     .driver = {
>> +             .name = "locomo-led"
>>       },
>> -     .devid  = LOCOMO_DEVID_LED,
>>       .probe  = locomoled_probe,
>> -     .remove = locomoled_remove,
>>  };
>>
>> -static int __init locomoled_init(void)
>> -{
>> -     return locomo_driver_register(&locomoled_driver);
>> -}
>> -module_init(locomoled_init);
>> +module_platform_driver(locomoled_driver);
>>
>>  MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
>>  MODULE_DESCRIPTION("Locomo LED driver");
>>  MODULE_LICENSE("GPL");
>> +MODULE_ALIAS("platform:locomo-led");
>
> --
> Lee Jones
> Linaro STMicroelectronics Landing Team Lead
> Linaro.org ? Open source software for ARM SoCs
> Follow Linaro: Facebook | Twitter | Blog
Lee Jones June 9, 2015, 11:11 a.m. UTC | #3
On Tue, 09 Jun 2015, Dmitry Eremin-Solenikov wrote:

> 2015-06-09 9:57 GMT+03:00 Lee Jones <lee.jones@linaro.org>:
> > On Mon, 08 Jun 2015, Dmitry Eremin-Solenikov wrote:
> >
> >> Adapt locomo leds driver to new locomo core setup.
> >>
> >> Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
> >> Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>
> >
> > This is missing Bryan's Ack.
> 
> Jacek is listed as a co-maintainer of the LEDS subsystem, so I assumed
> that his acked-by is enough.

Ah, this is new.

Congratulations Jacek.

Ignore me then.

> >> ---
> >>  drivers/leds/Kconfig       |   2 +-
> >>  drivers/leds/leds-locomo.c | 117 +++++++++++++++++++++++----------------------
> >>  2 files changed, 61 insertions(+), 58 deletions(-)
> >>
> >> diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
> >> index 966b960..d086aac 100644
> >> --- a/drivers/leds/Kconfig
> >> +++ b/drivers/leds/Kconfig
> >> @@ -79,7 +79,7 @@ config LEDS_LM3642
> >>  config LEDS_LOCOMO
> >>       tristate "LED Support for Locomo device"
> >>       depends on LEDS_CLASS
> >> -     depends on SHARP_LOCOMO
> >> +     depends on MFD_LOCOMO
> >>       help
> >>         This option enables support for the LEDs on Sharp Locomo.
> >>         Zaurus models SL-5500 and SL-5600.
> >> diff --git a/drivers/leds/leds-locomo.c b/drivers/leds/leds-locomo.c
> >> index 80ba048..a4286e9 100644
> >> --- a/drivers/leds/leds-locomo.c
> >> +++ b/drivers/leds/leds-locomo.c
> >> @@ -9,89 +9,92 @@
> >>   */
> >>
> >>  #include <linux/kernel.h>
> >> -#include <linux/init.h>
> >> -#include <linux/module.h>
> >> -#include <linux/device.h>
> >>  #include <linux/leds.h>
> >> +#include <linux/mfd/locomo.h>
> >> +#include <linux/module.h>
> >> +#include <linux/platform_device.h>
> >> +#include <linux/regmap.h>
> >>
> >> -#include <mach/hardware.h>
> >> -#include <asm/hardware/locomo.h>
> >> +struct locomo_led {
> >> +     struct led_classdev led;
> >> +     struct regmap *regmap;
> >> +     unsigned int reg;
> >> +};
> >>
> >>  static void locomoled_brightness_set(struct led_classdev *led_cdev,
> >> -                             enum led_brightness value, int offset)
> >> -{
> >> -     struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->dev->parent);
> >> -     unsigned long flags;
> >> -
> >> -     local_irq_save(flags);
> >> -     if (value)
> >> -             locomo_writel(LOCOMO_LPT_TOFH, locomo_dev->mapbase + offset);
> >> -     else
> >> -             locomo_writel(LOCOMO_LPT_TOFL, locomo_dev->mapbase + offset);
> >> -     local_irq_restore(flags);
> >> -}
> >> -
> >> -static void locomoled_brightness_set0(struct led_classdev *led_cdev,
> >>                               enum led_brightness value)
> >>  {
> >> -     locomoled_brightness_set(led_cdev, value, LOCOMO_LPT0);
> >> +     struct locomo_led *led = container_of(led_cdev, struct locomo_led, led);
> >> +
> >> +     regmap_write(led->regmap, led->reg,
> >> +                     value ? LOCOMO_LPT_TOFH : LOCOMO_LPT_TOFL);
> >>  }
> >>
> >> -static void locomoled_brightness_set1(struct led_classdev *led_cdev,
> >> -                             enum led_brightness value)
> >> +static int locomo_led_register(
> >> +             struct device *dev,
> >> +             struct locomo_led *led,
> >> +             const char *name,
> >> +             const char *trigger,
> >> +             struct regmap *regmap,
> >> +             unsigned int reg)
> >>  {
> >> -     locomoled_brightness_set(led_cdev, value, LOCOMO_LPT1);
> >> +     led->led.name = name;
> >> +     led->led.flags = LED_CORE_SUSPENDRESUME;
> >> +     led->led.default_trigger = trigger;
> >> +     led->led.brightness_set = locomoled_brightness_set;
> >> +     led->regmap = regmap;
> >> +     led->reg = reg;
> >> +
> >> +     return devm_led_classdev_register(dev, &led->led);
> >>  }
> >>
> >> -static struct led_classdev locomo_led0 = {
> >> -     .name                   = "locomo:amber:charge",
> >> -     .default_trigger        = "main-battery-charging",
> >> -     .brightness_set         = locomoled_brightness_set0,
> >> -};
> >> -
> >> -static struct led_classdev locomo_led1 = {
> >> -     .name                   = "locomo:green:mail",
> >> -     .default_trigger        = "nand-disk",
> >> -     .brightness_set         = locomoled_brightness_set1,
> >> -};
> >> -
> >> -static int locomoled_probe(struct locomo_dev *ldev)
> >> +static int locomoled_probe(struct platform_device *pdev)
> >>  {
> >>       int ret;
> >> -
> >> -     ret = led_classdev_register(&ldev->dev, &locomo_led0);
> >> +     struct locomo_led *leds;
> >> +     struct regmap *regmap;
> >> +
> >> +     leds = devm_kzalloc(&pdev->dev, 2 * sizeof(*leds), GFP_KERNEL);
> >> +     if (!leds)
> >> +             return -ENOMEM;
> >> +
> >> +     regmap = dev_get_regmap(pdev->dev.parent, NULL);
> >> +     if (!regmap)
> >> +             return -ENODEV;
> >> +
> >> +     ret = locomo_led_register(
> >> +                     &pdev->dev,
> >> +                     leds,
> >> +                     "locomo:amber:charge",
> >> +                     "main-battery-charging",
> >> +                     regmap,
> >> +                     LOCOMO_LPT0);
> >>       if (ret < 0)
> >>               return ret;
> >>
> >> -     ret = led_classdev_register(&ldev->dev, &locomo_led1);
> >> +     ret = locomo_led_register(
> >> +                     &pdev->dev,
> >> +                     leds + 1,
> >> +                     "locomo:green:mail",
> >> +                     "mmc0",
> >> +                     regmap,
> >> +                     LOCOMO_LPT1);
> >>       if (ret < 0)
> >> -             led_classdev_unregister(&locomo_led0);
> >> -
> >> -     return ret;
> >> -}
> >> +             return ret;
> >>
> >> -static int locomoled_remove(struct locomo_dev *dev)
> >> -{
> >> -     led_classdev_unregister(&locomo_led0);
> >> -     led_classdev_unregister(&locomo_led1);
> >>       return 0;
> >>  }
> >>
> >> -static struct locomo_driver locomoled_driver = {
> >> -     .drv = {
> >> -             .name = "locomoled"
> >> +static struct platform_driver locomoled_driver = {
> >> +     .driver = {
> >> +             .name = "locomo-led"
> >>       },
> >> -     .devid  = LOCOMO_DEVID_LED,
> >>       .probe  = locomoled_probe,
> >> -     .remove = locomoled_remove,
> >>  };
> >>
> >> -static int __init locomoled_init(void)
> >> -{
> >> -     return locomo_driver_register(&locomoled_driver);
> >> -}
> >> -module_init(locomoled_init);
> >> +module_platform_driver(locomoled_driver);
> >>
> >>  MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
> >>  MODULE_DESCRIPTION("Locomo LED driver");
> >>  MODULE_LICENSE("GPL");
> >> +MODULE_ALIAS("platform:locomo-led");
> >
> 
> 
>
Jacek Anaszewski June 9, 2015, 11:35 a.m. UTC | #4
On 06/09/2015 01:11 PM, Lee Jones wrote:
> On Tue, 09 Jun 2015, Dmitry Eremin-Solenikov wrote:
>
>> 2015-06-09 9:57 GMT+03:00 Lee Jones <lee.jones@linaro.org>:
>>> On Mon, 08 Jun 2015, Dmitry Eremin-Solenikov wrote:
>>>
>>>> Adapt locomo leds driver to new locomo core setup.
>>>>
>>>> Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
>>>> Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>
>>>
>>> This is missing Bryan's Ack.
>>
>> Jacek is listed as a co-maintainer of the LEDS subsystem, so I assumed
>> that his acked-by is enough.
>
> Ah, this is new.
>
> Congratulations Jacek.

Thanks.

> Ignore me then.

I think that it should go via mfd tree, as this patch adds
dependency on header linux/mfd/locomo.h, which is added
in one of the preceding patches [1] in this series.

[1] [PATCH v3 01/17] mfd: add new driver for Sharp LoCoMo

>>>> ---
>>>>   drivers/leds/Kconfig       |   2 +-
>>>>   drivers/leds/leds-locomo.c | 117 +++++++++++++++++++++++----------------------
>>>>   2 files changed, 61 insertions(+), 58 deletions(-)
>>>>
>>>> diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
>>>> index 966b960..d086aac 100644
>>>> --- a/drivers/leds/Kconfig
>>>> +++ b/drivers/leds/Kconfig
>>>> @@ -79,7 +79,7 @@ config LEDS_LM3642
>>>>   config LEDS_LOCOMO
>>>>        tristate "LED Support for Locomo device"
>>>>        depends on LEDS_CLASS
>>>> -     depends on SHARP_LOCOMO
>>>> +     depends on MFD_LOCOMO
>>>>        help
>>>>          This option enables support for the LEDs on Sharp Locomo.
>>>>          Zaurus models SL-5500 and SL-5600.
>>>> diff --git a/drivers/leds/leds-locomo.c b/drivers/leds/leds-locomo.c
>>>> index 80ba048..a4286e9 100644
>>>> --- a/drivers/leds/leds-locomo.c
>>>> +++ b/drivers/leds/leds-locomo.c
>>>> @@ -9,89 +9,92 @@
>>>>    */
>>>>
>>>>   #include <linux/kernel.h>
>>>> -#include <linux/init.h>
>>>> -#include <linux/module.h>
>>>> -#include <linux/device.h>
>>>>   #include <linux/leds.h>
>>>> +#include <linux/mfd/locomo.h>
>>>> +#include <linux/module.h>
>>>> +#include <linux/platform_device.h>
>>>> +#include <linux/regmap.h>
>>>>
>>>> -#include <mach/hardware.h>
>>>> -#include <asm/hardware/locomo.h>
>>>> +struct locomo_led {
>>>> +     struct led_classdev led;
>>>> +     struct regmap *regmap;
>>>> +     unsigned int reg;
>>>> +};
>>>>
>>>>   static void locomoled_brightness_set(struct led_classdev *led_cdev,
>>>> -                             enum led_brightness value, int offset)
>>>> -{
>>>> -     struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->dev->parent);
>>>> -     unsigned long flags;
>>>> -
>>>> -     local_irq_save(flags);
>>>> -     if (value)
>>>> -             locomo_writel(LOCOMO_LPT_TOFH, locomo_dev->mapbase + offset);
>>>> -     else
>>>> -             locomo_writel(LOCOMO_LPT_TOFL, locomo_dev->mapbase + offset);
>>>> -     local_irq_restore(flags);
>>>> -}
>>>> -
>>>> -static void locomoled_brightness_set0(struct led_classdev *led_cdev,
>>>>                                enum led_brightness value)
>>>>   {
>>>> -     locomoled_brightness_set(led_cdev, value, LOCOMO_LPT0);
>>>> +     struct locomo_led *led = container_of(led_cdev, struct locomo_led, led);
>>>> +
>>>> +     regmap_write(led->regmap, led->reg,
>>>> +                     value ? LOCOMO_LPT_TOFH : LOCOMO_LPT_TOFL);
>>>>   }
>>>>
>>>> -static void locomoled_brightness_set1(struct led_classdev *led_cdev,
>>>> -                             enum led_brightness value)
>>>> +static int locomo_led_register(
>>>> +             struct device *dev,
>>>> +             struct locomo_led *led,
>>>> +             const char *name,
>>>> +             const char *trigger,
>>>> +             struct regmap *regmap,
>>>> +             unsigned int reg)
>>>>   {
>>>> -     locomoled_brightness_set(led_cdev, value, LOCOMO_LPT1);
>>>> +     led->led.name = name;
>>>> +     led->led.flags = LED_CORE_SUSPENDRESUME;
>>>> +     led->led.default_trigger = trigger;
>>>> +     led->led.brightness_set = locomoled_brightness_set;
>>>> +     led->regmap = regmap;
>>>> +     led->reg = reg;
>>>> +
>>>> +     return devm_led_classdev_register(dev, &led->led);
>>>>   }
>>>>
>>>> -static struct led_classdev locomo_led0 = {
>>>> -     .name                   = "locomo:amber:charge",
>>>> -     .default_trigger        = "main-battery-charging",
>>>> -     .brightness_set         = locomoled_brightness_set0,
>>>> -};
>>>> -
>>>> -static struct led_classdev locomo_led1 = {
>>>> -     .name                   = "locomo:green:mail",
>>>> -     .default_trigger        = "nand-disk",
>>>> -     .brightness_set         = locomoled_brightness_set1,
>>>> -};
>>>> -
>>>> -static int locomoled_probe(struct locomo_dev *ldev)
>>>> +static int locomoled_probe(struct platform_device *pdev)
>>>>   {
>>>>        int ret;
>>>> -
>>>> -     ret = led_classdev_register(&ldev->dev, &locomo_led0);
>>>> +     struct locomo_led *leds;
>>>> +     struct regmap *regmap;
>>>> +
>>>> +     leds = devm_kzalloc(&pdev->dev, 2 * sizeof(*leds), GFP_KERNEL);
>>>> +     if (!leds)
>>>> +             return -ENOMEM;
>>>> +
>>>> +     regmap = dev_get_regmap(pdev->dev.parent, NULL);
>>>> +     if (!regmap)
>>>> +             return -ENODEV;
>>>> +
>>>> +     ret = locomo_led_register(
>>>> +                     &pdev->dev,
>>>> +                     leds,
>>>> +                     "locomo:amber:charge",
>>>> +                     "main-battery-charging",
>>>> +                     regmap,
>>>> +                     LOCOMO_LPT0);
>>>>        if (ret < 0)
>>>>                return ret;
>>>>
>>>> -     ret = led_classdev_register(&ldev->dev, &locomo_led1);
>>>> +     ret = locomo_led_register(
>>>> +                     &pdev->dev,
>>>> +                     leds + 1,
>>>> +                     "locomo:green:mail",
>>>> +                     "mmc0",
>>>> +                     regmap,
>>>> +                     LOCOMO_LPT1);
>>>>        if (ret < 0)
>>>> -             led_classdev_unregister(&locomo_led0);
>>>> -
>>>> -     return ret;
>>>> -}
>>>> +             return ret;
>>>>
>>>> -static int locomoled_remove(struct locomo_dev *dev)
>>>> -{
>>>> -     led_classdev_unregister(&locomo_led0);
>>>> -     led_classdev_unregister(&locomo_led1);
>>>>        return 0;
>>>>   }
>>>>
>>>> -static struct locomo_driver locomoled_driver = {
>>>> -     .drv = {
>>>> -             .name = "locomoled"
>>>> +static struct platform_driver locomoled_driver = {
>>>> +     .driver = {
>>>> +             .name = "locomo-led"
>>>>        },
>>>> -     .devid  = LOCOMO_DEVID_LED,
>>>>        .probe  = locomoled_probe,
>>>> -     .remove = locomoled_remove,
>>>>   };
>>>>
>>>> -static int __init locomoled_init(void)
>>>> -{
>>>> -     return locomo_driver_register(&locomoled_driver);
>>>> -}
>>>> -module_init(locomoled_init);
>>>> +module_platform_driver(locomoled_driver);
>>>>
>>>>   MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
>>>>   MODULE_DESCRIPTION("Locomo LED driver");
>>>>   MODULE_LICENSE("GPL");
>>>> +MODULE_ALIAS("platform:locomo-led");
>>>
>>
>>
>>
>
Lee Jones June 9, 2015, 6:51 p.m. UTC | #5
On Tue, 09 Jun 2015, Jacek Anaszewski wrote:

> On 06/09/2015 01:11 PM, Lee Jones wrote:
> >On Tue, 09 Jun 2015, Dmitry Eremin-Solenikov wrote:
> >
> >>2015-06-09 9:57 GMT+03:00 Lee Jones <lee.jones@linaro.org>:
> >>>On Mon, 08 Jun 2015, Dmitry Eremin-Solenikov wrote:
> >>>
> >>>>Adapt locomo leds driver to new locomo core setup.
> >>>>
> >>>>Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
> >>>>Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>
> >>>
> >>>This is missing Bryan's Ack.
> >>
> >>Jacek is listed as a co-maintainer of the LEDS subsystem, so I assumed
> >>that his acked-by is enough.
> >
> >Ah, this is new.
> >
> >Congratulations Jacek.
> 
> Thanks.
> 
> >Ignore me then.
> 
> I think that it should go via mfd tree, as this patch adds
> dependency on header linux/mfd/locomo.h, which is added
> in one of the preceding patches [1] in this series.

Yep, that's the plan.

> [1] [PATCH v3 01/17] mfd: add new driver for Sharp LoCoMo
> 
> >>>>---
> >>>>  drivers/leds/Kconfig       |   2 +-
> >>>>  drivers/leds/leds-locomo.c | 117 +++++++++++++++++++++++----------------------
> >>>>  2 files changed, 61 insertions(+), 58 deletions(-)
> >>>>
> >>>>diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
> >>>>index 966b960..d086aac 100644
> >>>>--- a/drivers/leds/Kconfig
> >>>>+++ b/drivers/leds/Kconfig
> >>>>@@ -79,7 +79,7 @@ config LEDS_LM3642
> >>>>  config LEDS_LOCOMO
> >>>>       tristate "LED Support for Locomo device"
> >>>>       depends on LEDS_CLASS
> >>>>-     depends on SHARP_LOCOMO
> >>>>+     depends on MFD_LOCOMO
> >>>>       help
> >>>>         This option enables support for the LEDs on Sharp Locomo.
> >>>>         Zaurus models SL-5500 and SL-5600.
> >>>>diff --git a/drivers/leds/leds-locomo.c b/drivers/leds/leds-locomo.c
> >>>>index 80ba048..a4286e9 100644
> >>>>--- a/drivers/leds/leds-locomo.c
> >>>>+++ b/drivers/leds/leds-locomo.c
> >>>>@@ -9,89 +9,92 @@
> >>>>   */
> >>>>
> >>>>  #include <linux/kernel.h>
> >>>>-#include <linux/init.h>
> >>>>-#include <linux/module.h>
> >>>>-#include <linux/device.h>
> >>>>  #include <linux/leds.h>
> >>>>+#include <linux/mfd/locomo.h>
> >>>>+#include <linux/module.h>
> >>>>+#include <linux/platform_device.h>
> >>>>+#include <linux/regmap.h>
> >>>>
> >>>>-#include <mach/hardware.h>
> >>>>-#include <asm/hardware/locomo.h>
> >>>>+struct locomo_led {
> >>>>+     struct led_classdev led;
> >>>>+     struct regmap *regmap;
> >>>>+     unsigned int reg;
> >>>>+};
> >>>>
> >>>>  static void locomoled_brightness_set(struct led_classdev *led_cdev,
> >>>>-                             enum led_brightness value, int offset)
> >>>>-{
> >>>>-     struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->dev->parent);
> >>>>-     unsigned long flags;
> >>>>-
> >>>>-     local_irq_save(flags);
> >>>>-     if (value)
> >>>>-             locomo_writel(LOCOMO_LPT_TOFH, locomo_dev->mapbase + offset);
> >>>>-     else
> >>>>-             locomo_writel(LOCOMO_LPT_TOFL, locomo_dev->mapbase + offset);
> >>>>-     local_irq_restore(flags);
> >>>>-}
> >>>>-
> >>>>-static void locomoled_brightness_set0(struct led_classdev *led_cdev,
> >>>>                               enum led_brightness value)
> >>>>  {
> >>>>-     locomoled_brightness_set(led_cdev, value, LOCOMO_LPT0);
> >>>>+     struct locomo_led *led = container_of(led_cdev, struct locomo_led, led);
> >>>>+
> >>>>+     regmap_write(led->regmap, led->reg,
> >>>>+                     value ? LOCOMO_LPT_TOFH : LOCOMO_LPT_TOFL);
> >>>>  }
> >>>>
> >>>>-static void locomoled_brightness_set1(struct led_classdev *led_cdev,
> >>>>-                             enum led_brightness value)
> >>>>+static int locomo_led_register(
> >>>>+             struct device *dev,
> >>>>+             struct locomo_led *led,
> >>>>+             const char *name,
> >>>>+             const char *trigger,
> >>>>+             struct regmap *regmap,
> >>>>+             unsigned int reg)
> >>>>  {
> >>>>-     locomoled_brightness_set(led_cdev, value, LOCOMO_LPT1);
> >>>>+     led->led.name = name;
> >>>>+     led->led.flags = LED_CORE_SUSPENDRESUME;
> >>>>+     led->led.default_trigger = trigger;
> >>>>+     led->led.brightness_set = locomoled_brightness_set;
> >>>>+     led->regmap = regmap;
> >>>>+     led->reg = reg;
> >>>>+
> >>>>+     return devm_led_classdev_register(dev, &led->led);
> >>>>  }
> >>>>
> >>>>-static struct led_classdev locomo_led0 = {
> >>>>-     .name                   = "locomo:amber:charge",
> >>>>-     .default_trigger        = "main-battery-charging",
> >>>>-     .brightness_set         = locomoled_brightness_set0,
> >>>>-};
> >>>>-
> >>>>-static struct led_classdev locomo_led1 = {
> >>>>-     .name                   = "locomo:green:mail",
> >>>>-     .default_trigger        = "nand-disk",
> >>>>-     .brightness_set         = locomoled_brightness_set1,
> >>>>-};
> >>>>-
> >>>>-static int locomoled_probe(struct locomo_dev *ldev)
> >>>>+static int locomoled_probe(struct platform_device *pdev)
> >>>>  {
> >>>>       int ret;
> >>>>-
> >>>>-     ret = led_classdev_register(&ldev->dev, &locomo_led0);
> >>>>+     struct locomo_led *leds;
> >>>>+     struct regmap *regmap;
> >>>>+
> >>>>+     leds = devm_kzalloc(&pdev->dev, 2 * sizeof(*leds), GFP_KERNEL);
> >>>>+     if (!leds)
> >>>>+             return -ENOMEM;
> >>>>+
> >>>>+     regmap = dev_get_regmap(pdev->dev.parent, NULL);
> >>>>+     if (!regmap)
> >>>>+             return -ENODEV;
> >>>>+
> >>>>+     ret = locomo_led_register(
> >>>>+                     &pdev->dev,
> >>>>+                     leds,
> >>>>+                     "locomo:amber:charge",
> >>>>+                     "main-battery-charging",
> >>>>+                     regmap,
> >>>>+                     LOCOMO_LPT0);
> >>>>       if (ret < 0)
> >>>>               return ret;
> >>>>
> >>>>-     ret = led_classdev_register(&ldev->dev, &locomo_led1);
> >>>>+     ret = locomo_led_register(
> >>>>+                     &pdev->dev,
> >>>>+                     leds + 1,
> >>>>+                     "locomo:green:mail",
> >>>>+                     "mmc0",
> >>>>+                     regmap,
> >>>>+                     LOCOMO_LPT1);
> >>>>       if (ret < 0)
> >>>>-             led_classdev_unregister(&locomo_led0);
> >>>>-
> >>>>-     return ret;
> >>>>-}
> >>>>+             return ret;
> >>>>
> >>>>-static int locomoled_remove(struct locomo_dev *dev)
> >>>>-{
> >>>>-     led_classdev_unregister(&locomo_led0);
> >>>>-     led_classdev_unregister(&locomo_led1);
> >>>>       return 0;
> >>>>  }
> >>>>
> >>>>-static struct locomo_driver locomoled_driver = {
> >>>>-     .drv = {
> >>>>-             .name = "locomoled"
> >>>>+static struct platform_driver locomoled_driver = {
> >>>>+     .driver = {
> >>>>+             .name = "locomo-led"
> >>>>       },
> >>>>-     .devid  = LOCOMO_DEVID_LED,
> >>>>       .probe  = locomoled_probe,
> >>>>-     .remove = locomoled_remove,
> >>>>  };
> >>>>
> >>>>-static int __init locomoled_init(void)
> >>>>-{
> >>>>-     return locomo_driver_register(&locomoled_driver);
> >>>>-}
> >>>>-module_init(locomoled_init);
> >>>>+module_platform_driver(locomoled_driver);
> >>>>
> >>>>  MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
> >>>>  MODULE_DESCRIPTION("Locomo LED driver");
> >>>>  MODULE_LICENSE("GPL");
> >>>>+MODULE_ALIAS("platform:locomo-led");
> >>>
> >>
> >>
> >>
> >
> 
>
Bryan Wu June 15, 2015, 6:43 p.m. UTC | #6
On Tue, Jun 9, 2015 at 1:08 AM, Dmitry Eremin-Solenikov
<dbaryshkov@gmail.com> wrote:
> 2015-06-09 9:57 GMT+03:00 Lee Jones <lee.jones@linaro.org>:
>> On Mon, 08 Jun 2015, Dmitry Eremin-Solenikov wrote:
>>
>>> Adapt locomo leds driver to new locomo core setup.
>>>
>>> Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
>>> Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>
>>
>> This is missing Bryan's Ack.
>
> Jacek is listed as a co-maintainer of the LEDS subsystem, so I assumed
> that his acked-by is enough.
>
Yeah, Jacke's Acked-by is good enough.

Thanks,
-Bryan

>>
>>> ---
>>>  drivers/leds/Kconfig       |   2 +-
>>>  drivers/leds/leds-locomo.c | 117 +++++++++++++++++++++++----------------------
>>>  2 files changed, 61 insertions(+), 58 deletions(-)
>>>
>>> diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
>>> index 966b960..d086aac 100644
>>> --- a/drivers/leds/Kconfig
>>> +++ b/drivers/leds/Kconfig
>>> @@ -79,7 +79,7 @@ config LEDS_LM3642
>>>  config LEDS_LOCOMO
>>>       tristate "LED Support for Locomo device"
>>>       depends on LEDS_CLASS
>>> -     depends on SHARP_LOCOMO
>>> +     depends on MFD_LOCOMO
>>>       help
>>>         This option enables support for the LEDs on Sharp Locomo.
>>>         Zaurus models SL-5500 and SL-5600.
>>> diff --git a/drivers/leds/leds-locomo.c b/drivers/leds/leds-locomo.c
>>> index 80ba048..a4286e9 100644
>>> --- a/drivers/leds/leds-locomo.c
>>> +++ b/drivers/leds/leds-locomo.c
>>> @@ -9,89 +9,92 @@
>>>   */
>>>
>>>  #include <linux/kernel.h>
>>> -#include <linux/init.h>
>>> -#include <linux/module.h>
>>> -#include <linux/device.h>
>>>  #include <linux/leds.h>
>>> +#include <linux/mfd/locomo.h>
>>> +#include <linux/module.h>
>>> +#include <linux/platform_device.h>
>>> +#include <linux/regmap.h>
>>>
>>> -#include <mach/hardware.h>
>>> -#include <asm/hardware/locomo.h>
>>> +struct locomo_led {
>>> +     struct led_classdev led;
>>> +     struct regmap *regmap;
>>> +     unsigned int reg;
>>> +};
>>>
>>>  static void locomoled_brightness_set(struct led_classdev *led_cdev,
>>> -                             enum led_brightness value, int offset)
>>> -{
>>> -     struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->dev->parent);
>>> -     unsigned long flags;
>>> -
>>> -     local_irq_save(flags);
>>> -     if (value)
>>> -             locomo_writel(LOCOMO_LPT_TOFH, locomo_dev->mapbase + offset);
>>> -     else
>>> -             locomo_writel(LOCOMO_LPT_TOFL, locomo_dev->mapbase + offset);
>>> -     local_irq_restore(flags);
>>> -}
>>> -
>>> -static void locomoled_brightness_set0(struct led_classdev *led_cdev,
>>>                               enum led_brightness value)
>>>  {
>>> -     locomoled_brightness_set(led_cdev, value, LOCOMO_LPT0);
>>> +     struct locomo_led *led = container_of(led_cdev, struct locomo_led, led);
>>> +
>>> +     regmap_write(led->regmap, led->reg,
>>> +                     value ? LOCOMO_LPT_TOFH : LOCOMO_LPT_TOFL);
>>>  }
>>>
>>> -static void locomoled_brightness_set1(struct led_classdev *led_cdev,
>>> -                             enum led_brightness value)
>>> +static int locomo_led_register(
>>> +             struct device *dev,
>>> +             struct locomo_led *led,
>>> +             const char *name,
>>> +             const char *trigger,
>>> +             struct regmap *regmap,
>>> +             unsigned int reg)
>>>  {
>>> -     locomoled_brightness_set(led_cdev, value, LOCOMO_LPT1);
>>> +     led->led.name = name;
>>> +     led->led.flags = LED_CORE_SUSPENDRESUME;
>>> +     led->led.default_trigger = trigger;
>>> +     led->led.brightness_set = locomoled_brightness_set;
>>> +     led->regmap = regmap;
>>> +     led->reg = reg;
>>> +
>>> +     return devm_led_classdev_register(dev, &led->led);
>>>  }
>>>
>>> -static struct led_classdev locomo_led0 = {
>>> -     .name                   = "locomo:amber:charge",
>>> -     .default_trigger        = "main-battery-charging",
>>> -     .brightness_set         = locomoled_brightness_set0,
>>> -};
>>> -
>>> -static struct led_classdev locomo_led1 = {
>>> -     .name                   = "locomo:green:mail",
>>> -     .default_trigger        = "nand-disk",
>>> -     .brightness_set         = locomoled_brightness_set1,
>>> -};
>>> -
>>> -static int locomoled_probe(struct locomo_dev *ldev)
>>> +static int locomoled_probe(struct platform_device *pdev)
>>>  {
>>>       int ret;
>>> -
>>> -     ret = led_classdev_register(&ldev->dev, &locomo_led0);
>>> +     struct locomo_led *leds;
>>> +     struct regmap *regmap;
>>> +
>>> +     leds = devm_kzalloc(&pdev->dev, 2 * sizeof(*leds), GFP_KERNEL);
>>> +     if (!leds)
>>> +             return -ENOMEM;
>>> +
>>> +     regmap = dev_get_regmap(pdev->dev.parent, NULL);
>>> +     if (!regmap)
>>> +             return -ENODEV;
>>> +
>>> +     ret = locomo_led_register(
>>> +                     &pdev->dev,
>>> +                     leds,
>>> +                     "locomo:amber:charge",
>>> +                     "main-battery-charging",
>>> +                     regmap,
>>> +                     LOCOMO_LPT0);
>>>       if (ret < 0)
>>>               return ret;
>>>
>>> -     ret = led_classdev_register(&ldev->dev, &locomo_led1);
>>> +     ret = locomo_led_register(
>>> +                     &pdev->dev,
>>> +                     leds + 1,
>>> +                     "locomo:green:mail",
>>> +                     "mmc0",
>>> +                     regmap,
>>> +                     LOCOMO_LPT1);
>>>       if (ret < 0)
>>> -             led_classdev_unregister(&locomo_led0);
>>> -
>>> -     return ret;
>>> -}
>>> +             return ret;
>>>
>>> -static int locomoled_remove(struct locomo_dev *dev)
>>> -{
>>> -     led_classdev_unregister(&locomo_led0);
>>> -     led_classdev_unregister(&locomo_led1);
>>>       return 0;
>>>  }
>>>
>>> -static struct locomo_driver locomoled_driver = {
>>> -     .drv = {
>>> -             .name = "locomoled"
>>> +static struct platform_driver locomoled_driver = {
>>> +     .driver = {
>>> +             .name = "locomo-led"
>>>       },
>>> -     .devid  = LOCOMO_DEVID_LED,
>>>       .probe  = locomoled_probe,
>>> -     .remove = locomoled_remove,
>>>  };
>>>
>>> -static int __init locomoled_init(void)
>>> -{
>>> -     return locomo_driver_register(&locomoled_driver);
>>> -}
>>> -module_init(locomoled_init);
>>> +module_platform_driver(locomoled_driver);
>>>
>>>  MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
>>>  MODULE_DESCRIPTION("Locomo LED driver");
>>>  MODULE_LICENSE("GPL");
>>> +MODULE_ALIAS("platform:locomo-led");
>>
>> --
>> Lee Jones
>> Linaro STMicroelectronics Landing Team Lead
>> Linaro.org ? Open source software for ARM SoCs
>> Follow Linaro: Facebook | Twitter | Blog
>
>
>
> --
> With best wishes
> Dmitry
diff mbox

Patch

diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 966b960..d086aac 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -79,7 +79,7 @@  config LEDS_LM3642
 config LEDS_LOCOMO
 	tristate "LED Support for Locomo device"
 	depends on LEDS_CLASS
-	depends on SHARP_LOCOMO
+	depends on MFD_LOCOMO
 	help
 	  This option enables support for the LEDs on Sharp Locomo.
 	  Zaurus models SL-5500 and SL-5600.
diff --git a/drivers/leds/leds-locomo.c b/drivers/leds/leds-locomo.c
index 80ba048..a4286e9 100644
--- a/drivers/leds/leds-locomo.c
+++ b/drivers/leds/leds-locomo.c
@@ -9,89 +9,92 @@ 
  */
 
 #include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/device.h>
 #include <linux/leds.h>
+#include <linux/mfd/locomo.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
 
-#include <mach/hardware.h>
-#include <asm/hardware/locomo.h>
+struct locomo_led {
+	struct led_classdev led;
+	struct regmap *regmap;
+	unsigned int reg;
+};
 
 static void locomoled_brightness_set(struct led_classdev *led_cdev,
-				enum led_brightness value, int offset)
-{
-	struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->dev->parent);
-	unsigned long flags;
-
-	local_irq_save(flags);
-	if (value)
-		locomo_writel(LOCOMO_LPT_TOFH, locomo_dev->mapbase + offset);
-	else
-		locomo_writel(LOCOMO_LPT_TOFL, locomo_dev->mapbase + offset);
-	local_irq_restore(flags);
-}
-
-static void locomoled_brightness_set0(struct led_classdev *led_cdev,
 				enum led_brightness value)
 {
-	locomoled_brightness_set(led_cdev, value, LOCOMO_LPT0);
+	struct locomo_led *led = container_of(led_cdev, struct locomo_led, led);
+
+	regmap_write(led->regmap, led->reg,
+			value ? LOCOMO_LPT_TOFH : LOCOMO_LPT_TOFL);
 }
 
-static void locomoled_brightness_set1(struct led_classdev *led_cdev,
-				enum led_brightness value)
+static int locomo_led_register(
+		struct device *dev,
+		struct locomo_led *led,
+		const char *name,
+		const char *trigger,
+		struct regmap *regmap,
+		unsigned int reg)
 {
-	locomoled_brightness_set(led_cdev, value, LOCOMO_LPT1);
+	led->led.name = name;
+	led->led.flags = LED_CORE_SUSPENDRESUME;
+	led->led.default_trigger = trigger;
+	led->led.brightness_set = locomoled_brightness_set;
+	led->regmap = regmap;
+	led->reg = reg;
+
+	return devm_led_classdev_register(dev, &led->led);
 }
 
-static struct led_classdev locomo_led0 = {
-	.name			= "locomo:amber:charge",
-	.default_trigger	= "main-battery-charging",
-	.brightness_set		= locomoled_brightness_set0,
-};
-
-static struct led_classdev locomo_led1 = {
-	.name			= "locomo:green:mail",
-	.default_trigger	= "nand-disk",
-	.brightness_set		= locomoled_brightness_set1,
-};
-
-static int locomoled_probe(struct locomo_dev *ldev)
+static int locomoled_probe(struct platform_device *pdev)
 {
 	int ret;
-
-	ret = led_classdev_register(&ldev->dev, &locomo_led0);
+	struct locomo_led *leds;
+	struct regmap *regmap;
+
+	leds = devm_kzalloc(&pdev->dev, 2 * sizeof(*leds), GFP_KERNEL);
+	if (!leds)
+		return -ENOMEM;
+
+	regmap = dev_get_regmap(pdev->dev.parent, NULL);
+	if (!regmap)
+		return -ENODEV;
+
+	ret = locomo_led_register(
+			&pdev->dev,
+			leds,
+			"locomo:amber:charge",
+			"main-battery-charging",
+			regmap,
+			LOCOMO_LPT0);
 	if (ret < 0)
 		return ret;
 
-	ret = led_classdev_register(&ldev->dev, &locomo_led1);
+	ret = locomo_led_register(
+			&pdev->dev,
+			leds + 1,
+			"locomo:green:mail",
+			"mmc0",
+			regmap,
+			LOCOMO_LPT1);
 	if (ret < 0)
-		led_classdev_unregister(&locomo_led0);
-
-	return ret;
-}
+		return ret;
 
-static int locomoled_remove(struct locomo_dev *dev)
-{
-	led_classdev_unregister(&locomo_led0);
-	led_classdev_unregister(&locomo_led1);
 	return 0;
 }
 
-static struct locomo_driver locomoled_driver = {
-	.drv = {
-		.name = "locomoled"
+static struct platform_driver locomoled_driver = {
+	.driver = {
+		.name = "locomo-led"
 	},
-	.devid	= LOCOMO_DEVID_LED,
 	.probe	= locomoled_probe,
-	.remove	= locomoled_remove,
 };
 
-static int __init locomoled_init(void)
-{
-	return locomo_driver_register(&locomoled_driver);
-}
-module_init(locomoled_init);
+module_platform_driver(locomoled_driver);
 
 MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
 MODULE_DESCRIPTION("Locomo LED driver");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:locomo-led");