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mfd: Adopt mfd_data in 88pm860x led

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Copy 88pm860x platform data into different mfd_data structure for
led driver. So move the identification of device node from led
driver to mfd driver.

Signed-off-by: Haojian Zhuang <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
This commit is contained in:
Haojian Zhuang 2011-03-07 23:43:10 +08:00 • committed by Samuel Ortiz
commit 3154c34469
3 changed files with 79 additions and 93 deletions
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60
drivers/leds/leds-88pm860x.c
View file

@ -17,6 +17,7 @@
#include <linux/leds.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <linux/mfd/core.h>
#include <linux/mfd/88pm860x.h>
#define LED_PWM_SHIFT (3)
@ -118,7 +119,8 @@ static void pm860x_led_work(struct work_struct *work)
struct pm860x_led *led;
struct pm860x_chip *chip;
int mask;
unsigned char buf[3];
int mask, ret;
led = container_of(work, struct pm860x_led, work);
chip = led->chip;
@ -128,16 +130,27 @@ static void pm860x_led_work(struct work_struct *work)
pm860x_set_bits(led->i2c, __led_off(led->port),
LED_CURRENT_MASK, led->iset);
}
pm860x_set_bits(led->i2c, __blink_off(led->port),
LED_BLINK_MASK, LED_ON_CONTINUOUS);
mask = __blink_ctl_mask(led->port);
pm860x_set_bits(led->i2c, PM8606_WLED3B, mask, mask);
} else if (led->brightness == 0) {
pm860x_set_bits(led->i2c, __led_off(led->port),
LED_CURRENT_MASK, 0);
mask = __blink_ctl_mask(led->port);
pm860x_set_bits(led->i2c, PM8606_WLED3B, mask, 0);
}
pm860x_set_bits(led->i2c, __led_off(led->port), LED_PWM_MASK,
led->brightness);
if (led->brightness == 0) {
pm860x_bulk_read(led->i2c, __led_off(led->port), 3, buf);
ret = buf[0] & LED_PWM_MASK;
ret |= buf[1] & LED_PWM_MASK;
ret |= buf[2] & LED_PWM_MASK;
if (ret == 0) {
/* unset current since no led is lighting */
pm860x_set_bits(led->i2c, __led_off(led->port),
LED_CURRENT_MASK, 0);
mask = __blink_ctl_mask(led->port);
pm860x_set_bits(led->i2c, PM8606_WLED3B, mask, 0);
}
}
led->current_brightness = led->brightness;
dev_dbg(chip->dev, "Update LED. (reg:%d, brightness:%d)\n",
__led_off(led->port), led->brightness);
@ -153,31 +166,12 @@ static void pm860x_led_set(struct led_classdev *cdev,
schedule_work(&data->work);
}
static int __check_device(struct pm860x_led_pdata *pdata, char *name)
{
struct pm860x_led_pdata *p = pdata;
int ret = -EINVAL;
while (p && p->id) {
if ((p->id != PM8606_ID_LED) || (p->flags < 0))
break;
if (!strncmp(name, pm860x_led_name[p->flags],
MFD_NAME_SIZE)) {
ret = (int)p->flags;
break;
}
p++;
}
return ret;
}
static int pm860x_led_probe(struct platform_device *pdev)
{
struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
struct pm860x_platform_data *pm860x_pdata;
struct pm860x_led_pdata *pdata;
struct pm860x_led *data;
struct mfd_cell *cell;
struct resource *res;
int ret;
@ -187,10 +181,11 @@ static int pm860x_led_probe(struct platform_device *pdev)
return -EINVAL;
}
if (pdev->dev.parent->platform_data) {
pm860x_pdata = pdev->dev.parent->platform_data;
pdata = pm860x_pdata->led;
} else {
cell = pdev->dev.platform_data;
if (cell == NULL)
return -ENODEV;
pdata = cell->mfd_data;
if (pdata == NULL) {
dev_err(&pdev->dev, "No platform data!\n");
return -EINVAL;
}
@ -198,12 +193,12 @@ static int pm860x_led_probe(struct platform_device *pdev)
data = kzalloc(sizeof(struct pm860x_led), GFP_KERNEL);
if (data == NULL)
return -ENOMEM;
strncpy(data->name, res->name, MFD_NAME_SIZE);
strncpy(data->name, res->name, MFD_NAME_SIZE - 1);
dev_set_drvdata(&pdev->dev, data);
data->chip = chip;
data->i2c = (chip->id == CHIP_PM8606) ? chip->client : chip->companion;
data->iset = pdata->iset;
data->port = __check_device(pdata, data->name);
data->port = pdata->flags;
if (data->port < 0) {
dev_err(&pdev->dev, "check device failed\n");
kfree(data);
@ -221,6 +216,7 @@ static int pm860x_led_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "Failed to register LED: %d\n", ret);
goto out;
}
pm860x_led_set(&data->cdev, 0);
return 0;
out:
kfree(data);