leds: Remove auto blink in 88pm860x

88pm860x supports auto-blink LED in hardware. It messed with
timer trigger. Now disable the auto-blink function.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 26 insertions, 93 deletions

diff --git a/drivers/leds/leds-88pm860x.c b/drivers/leds/leds-88pm860x.c
index b7677106cff8..e672b44ee172 100644
--- a/drivers/leds/leds-88pm860x.c
+++ b/drivers/leds/leds-88pm860x.c
@@ -24,26 +24,17 @@
 #define LED_CURRENT_MASK        (0x07 << 5)
 
 #define LED_BLINK_ON_MASK       (0x07)
-#define LED_BLINK_PERIOD_MASK   (0x0F << 3)
 #define LED_BLINK_MASK          (0x7F)
 
 #define LED_BLINK_ON(x)         ((x & 0x7) * 66 + 66)
-#define LED_BLINK_PERIOD(x)     ((x & 0xF) * 530 + 930)
 #define LED_BLINK_ON_MIN        LED_BLINK_ON(0)
 #define LED_BLINK_ON_MAX        LED_BLINK_ON(0x7)
-#define LED_BLINK_PERIOD_MIN    LED_BLINK_PERIOD(0)
-#define LED_BLINK_PERIOD_MAX    LED_BLINK_PERIOD(0xE)
+#define LED_ON_CONTINUOUS       (0x0F << 3)
 #define LED_TO_ON(x)            ((x - 66) / 66)
-#define LED_TO_PERIOD(x)        ((x - 930) / 530)
 
 #define LED1_BLINK_EN           (1 << 1)
 #define LED2_BLINK_EN           (1 << 2)
 
-enum {
-        SET_BRIGHTNESS,
-        SET_BLINK,
-};
-
 struct pm860x_led {
         struct led_classdev cdev;
         struct i2c_client *i2c;
@@ -54,8 +45,6 @@ struct pm860x_led {
 
         int port;
         int iset;
-        int command;
-        int offset;
         unsigned char brightness;
         unsigned char current_brightness;
 
@@ -95,10 +84,12 @@ static inline int __blink_off(int port)
         case PM8606_LED1_GREEN:
         case PM8606_LED1_BLUE:
                 ret = PM8606_RGB1A;
+                break;
         case PM8606_LED2_RED:
         case PM8606_LED2_GREEN:
         case PM8606_LED2_BLUE:
                 ret = PM8606_RGB2A;
+                break;
         }
         return ret;
 }
@@ -122,60 +113,35 @@ static inline int __blink_ctl_mask(int port)
         return ret;
 }
 
-static int __led_set(struct pm860x_led *led, int command)
+static void pm860x_led_work(struct work_struct *work)
 {
-        struct pm860x_chip *chip = led->chip;
-        int mask, ret;
 
+        struct pm860x_led *led;
+        struct pm860x_chip *chip;
+        int mask;
+
+        led = container_of(work, struct pm860x_led, work);
+        chip = led->chip;
         mutex_lock(&led->lock);
-        switch (command) {
-        case SET_BRIGHTNESS:
-                if ((led->current_brightness == 0) && led->brightness) {
-                        if (led->iset) {
-                                ret = pm860x_set_bits(led->i2c, led->offset,
-                                                LED_CURRENT_MASK, led->iset);
-                                if (ret < 0)
-                                        goto out;
-                        }
-                } else if (led->brightness == 0) {
-                        ret = pm860x_set_bits(led->i2c, led->offset,
-                                                LED_CURRENT_MASK, 0);
-                        if (ret < 0)
-                                goto out;
+        if ((led->current_brightness == 0) && led->brightness) {
+                if (led->iset) {
+                        pm860x_set_bits(led->i2c, __led_off(led->port),
+                                        LED_CURRENT_MASK, led->iset);
                 }
-                ret = pm860x_set_bits(led->i2c, led->offset, LED_PWM_MASK,
-                                        led->brightness);
-                if (ret < 0)
-                        goto out;
-                led->current_brightness = led->brightness;
-                dev_dbg(chip->dev, "Update LED. (reg:%d, brightness:%d)\n",
-                        led->offset, led->brightness);
-                break;
-        case SET_BLINK:
-                ret = pm860x_set_bits(led->i2c, led->offset,
-                                LED_BLINK_MASK, led->blink_data);
-                if (ret < 0)
-                        goto out;
-
                 mask = __blink_ctl_mask(led->port);
-                ret = pm860x_set_bits(led->i2c, PM8606_WLED3B, mask, mask);
-                if (ret < 0)
-                        goto out;
-                dev_dbg(chip->dev, "LED blink delay on:%dms, delay off:%dms\n",
-                        led->blink_on, led->blink_off);
-                break;
+                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);
         }
-out:
+        pm860x_set_bits(led->i2c, __led_off(led->port), LED_PWM_MASK,
+                        led->brightness);
+        led->current_brightness = led->brightness;
+        dev_dbg(chip->dev, "Update LED. (reg:%d, brightness:%d)\n",
+                __led_off(led->port), led->brightness);
         mutex_unlock(&led->lock);
-        return 0;
-}
-
-static void pm860x_led_work(struct work_struct *work)
-{
-        struct pm860x_led *led;
-
-        led = container_of(work, struct pm860x_led, work);
-        __led_set(led, led->command);
 }
 
 static void pm860x_led_set(struct led_classdev *cdev,
@@ -183,42 +149,10 @@ static void pm860x_led_set(struct led_classdev *cdev,
 {
         struct pm860x_led *data = container_of(cdev, struct pm860x_led, cdev);
 
-        data->offset = __led_off(data->port);
         data->brightness = value >> 3;
-        data->command = SET_BRIGHTNESS;
         schedule_work(&data->work);
 }
 
-static int pm860x_led_blink(struct led_classdev *cdev,
-                            unsigned long *delay_on,
-                            unsigned long *delay_off)
-{
-        struct pm860x_led *data = container_of(cdev, struct pm860x_led, cdev);
-        int period, on;
-
-        on = *delay_on;
-        if ((on < LED_BLINK_ON_MIN) || (on > LED_BLINK_ON_MAX))
-                return -EINVAL;
-
-        on = LED_TO_ON(on);
-        on = LED_BLINK_ON(on);
-
-        period = on + *delay_off;
-        if ((period < LED_BLINK_PERIOD_MIN) || (period > LED_BLINK_PERIOD_MAX))
-                return -EINVAL;
-        period = LED_TO_PERIOD(period);
-        period = LED_BLINK_PERIOD(period);
-
-        data->offset = __blink_off(data->port);
-        data->blink_on = on;
-        data->blink_off = period - data->blink_on;
-        data->blink_data = (period << 3) | data->blink_on;
-        data->command = SET_BLINK;
-        schedule_work(&data->work);
-
-        return 0;
-}
-
 static int __check_device(struct pm860x_led_pdata *pdata, char *name)
 {
         struct pm860x_led_pdata *p = pdata;
@@ -257,7 +191,7 @@ static int pm860x_led_probe(struct platform_device *pdev)
                 pm860x_pdata = pdev->dev.parent->platform_data;
                 pdata = pm860x_pdata->led;
         } else {
-                dev_err(&pdev->dev, "missing platform data\n");
+                dev_err(&pdev->dev, "No platform data!\n");
                 return -EINVAL;
         }
 
@@ -279,7 +213,6 @@ static int pm860x_led_probe(struct platform_device *pdev)
         data->current_brightness = 0;
         data->cdev.name = data->name;
         data->cdev.brightness_set = pm860x_led_set;
-        data->cdev.blink_set = pm860x_led_blink;
         mutex_init(&data->lock);
         INIT_WORK(&data->work, pm860x_led_work);