[PATCH v2 02/17] leds: port locomo leds driver to new locomo core

Dmitry Eremin-Solenikov
2015-04-27T23:55:39Z

Adapt locomo leds driver to new locomo core setup.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
---
drivers/leds/Kconfig | 1 -
drivers/leds/leds-locomo.c | 119 +++++++++++++++++++++++----------------------
2 files changed, 61 insertions(+), 59 deletions(-)

diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 966b960..4b4650b 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -79,7 +79,6 @@ config LEDS_LM3642
config LEDS_LOCOMO
tristate "LED Support for Locomo device"
depends on LEDS_CLASS
- depends on SHARP_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..7fde812 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 <mach/hardware.h>
-#include <asm/hardware/locomo.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/mfd/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)
+ enum led_brightness value)
{
- struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->dev->parent);
- unsigned long flags;
+ struct locomo_led *led = container_of(led_cdev, struct locomo_led, led);

- 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);
+ regmap_write(led->regmap, led->reg,
+ value ? LOCOMO_LPT_TOFH : LOCOMO_LPT_TOFL);
}

-static void locomoled_brightness_set0(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_LPT0);
+ 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 void locomoled_brightness_set1(struct led_classdev *led_cdev,
- enum led_brightness value)
-{
- locomoled_brightness_set(led_cdev, value, LOCOMO_LPT1);
-}
-
-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");
--
2.1.4