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Date: Fri, 5 Oct 2012 08:25:38 +0000
From: "Kim, Milo" <Milo.Kim@...com>
To: Bryan Wu <bryan.wu@...onical.com>
CC: Richard Purdie <rpurdie@...ys.net>,
"linux-leds@...r.kernel.org" <linux-leds@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH 27/28] leds-lp5521/5523: relocate functions and remove
comments
Relocate device attribute function nearby the declaration of the attribute.
This is really minor, but it may improve the legibility.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@...com>
---
drivers/leds/leds-lp5521.c | 24 +++----
drivers/leds/leds-lp5523.c | 154 +++++++++++++++++++++-----------------------
2 files changed, 87 insertions(+), 91 deletions(-)
diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c
index 181d73f..59b4589 100644
--- a/drivers/leds/leds-lp5521.c
+++ b/drivers/leds/leds-lp5521.c
@@ -312,6 +312,18 @@ static int lp5521_post_init_device(struct lp55xx_chip *chip)
return 0;
}
+static void lp5521_led_brightness_work(struct work_struct *work)
+{
+ struct lp55xx_led *led = container_of(work, struct lp55xx_led,
+ brightness_work);
+ struct lp55xx_chip *chip = led->chip;
+
+ mutex_lock(&chip->lock);
+ lp55xx_write(chip, LP5521_REG_LED_PWM_BASE + led->chan_nr,
+ led->brightness);
+ mutex_unlock(&chip->lock);
+}
+
static int lp5521_run_selftest(struct lp55xx_chip *chip, char *buf)
{
struct lp55xx_platform_data *pdata = chip->pdata;
@@ -332,18 +344,6 @@ static int lp5521_run_selftest(struct lp55xx_chip *chip, char *buf)
return 0;
}
-static void lp5521_led_brightness_work(struct work_struct *work)
-{
- struct lp55xx_led *led = container_of(work, struct lp55xx_led,
- brightness_work);
- struct lp55xx_chip *chip = led->chip;
-
- mutex_lock(&chip->lock);
- lp55xx_write(chip, LP5521_REG_LED_PWM_BASE + led->chan_nr,
- led->brightness);
- mutex_unlock(&chip->lock);
-}
-
static ssize_t lp5521_selftest(struct device *dev,
struct device_attribute *attr,
char *buf)
diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
index 66d57a5..7405564 100644
--- a/drivers/leds/leds-lp5523.c
+++ b/drivers/leds/leds-lp5523.c
@@ -130,81 +130,6 @@ static int lp5523_post_init_device(struct lp55xx_chip *chip)
return lp55xx_write(chip, LP5523_REG_ENABLE_LEDS_LSB, 0xff);
}
-static ssize_t lp5523_selftest(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct lp55xx_led *led = i2c_get_clientdata(to_i2c_client(dev));
- struct lp55xx_chip *chip = led->chip;
- struct lp55xx_platform_data *pdata = chip->pdata;
- int i, ret, pos = 0;
- u8 status, adc, vdd;
-
- mutex_lock(&chip->lock);
-
- ret = lp55xx_read(chip, LP5523_REG_STATUS, &status);
- if (ret < 0)
- goto fail;
-
- /* Check that ext clock is really in use if requested */
- if (pdata->clock_mode == LP55XX_CLOCK_EXT) {
- if ((status & LP5523_EXT_CLK_USED) == 0)
- goto fail;
- }
-
- /* Measure VDD (i.e. VBAT) first (channel 16 corresponds to VDD) */
- lp55xx_write(chip, LP5523_REG_LED_TEST_CTRL, LP5523_EN_LEDTEST | 16);
- usleep_range(3000, 6000); /* ADC conversion time is typically 2.7 ms */
- ret = lp55xx_read(chip, LP5523_REG_STATUS, &status);
- if (!(status & LP5523_LEDTEST_DONE))
- usleep_range(3000, 6000); /* Was not ready. Wait little bit */
-
- ret |= lp55xx_read(chip, LP5523_REG_LED_TEST_ADC, &vdd);
- vdd--; /* There may be some fluctuation in measurement */
-
- for (i = 0; i < LP5523_MAX_LEDS; i++) {
- /* Skip non-existing channels */
- if (pdata->led_config[i].led_current == 0)
- continue;
-
- /* Set default current */
- lp55xx_write(chip, LP5523_REG_LED_CURRENT_BASE + i,
- pdata->led_config[i].led_current);
-
- lp55xx_write(chip, LP5523_REG_LED_PWM_BASE + i, 0xff);
- /* let current stabilize 2 - 4ms before measurements start */
- usleep_range(2000, 4000);
- lp55xx_write(chip, LP5523_REG_LED_TEST_CTRL,
- LP5523_EN_LEDTEST | i);
- /* ADC conversion time is 2.7 ms typically */
- usleep_range(3000, 6000);
- ret = lp55xx_read(chip, LP5523_REG_STATUS, &status);
- if (!(status & LP5523_LEDTEST_DONE))
- usleep_range(3000, 6000);/* Was not ready. Wait. */
- ret |= lp55xx_read(chip, LP5523_REG_LED_TEST_ADC, &adc);
-
- if (adc >= vdd || adc < LP5523_ADC_SHORTCIRC_LIM)
- pos += sprintf(buf + pos, "LED %d FAIL\n", i);
-
- lp55xx_write(chip, LP5523_REG_LED_PWM_BASE + i, 0x00);
-
- /* Restore current */
- lp55xx_write(chip, LP5523_REG_LED_CURRENT_BASE + i,
- led->led_current);
- led++;
- }
- if (pos == 0)
- pos = sprintf(buf, "OK\n");
- goto release_lock;
-fail:
- pos = sprintf(buf, "FAIL\n");
-
-release_lock:
- mutex_unlock(&chip->lock);
-
- return pos;
-}
-
static void lp5523_led_brightness_work(struct work_struct *work)
{
struct lp55xx_led *led = container_of(work, struct lp55xx_led,
@@ -381,6 +306,81 @@ static void lp5523_firmware_loaded(struct lp55xx_chip *chip)
lp5523_update_program_memory(chip, fw->data, fw->size);
}
+static ssize_t lp5523_selftest(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct lp55xx_led *led = i2c_get_clientdata(to_i2c_client(dev));
+ struct lp55xx_chip *chip = led->chip;
+ struct lp55xx_platform_data *pdata = chip->pdata;
+ int i, ret, pos = 0;
+ u8 status, adc, vdd;
+
+ mutex_lock(&chip->lock);
+
+ ret = lp55xx_read(chip, LP5523_REG_STATUS, &status);
+ if (ret < 0)
+ goto fail;
+
+ /* Check that ext clock is really in use if requested */
+ if (pdata->clock_mode == LP55XX_CLOCK_EXT) {
+ if ((status & LP5523_EXT_CLK_USED) == 0)
+ goto fail;
+ }
+
+ /* Measure VDD (i.e. VBAT) first (channel 16 corresponds to VDD) */
+ lp55xx_write(chip, LP5523_REG_LED_TEST_CTRL, LP5523_EN_LEDTEST | 16);
+ usleep_range(3000, 6000); /* ADC conversion time is typically 2.7 ms */
+ ret = lp55xx_read(chip, LP5523_REG_STATUS, &status);
+ if (!(status & LP5523_LEDTEST_DONE))
+ usleep_range(3000, 6000); /* Was not ready. Wait little bit */
+
+ ret |= lp55xx_read(chip, LP5523_REG_LED_TEST_ADC, &vdd);
+ vdd--; /* There may be some fluctuation in measurement */
+
+ for (i = 0; i < LP5523_MAX_LEDS; i++) {
+ /* Skip non-existing channels */
+ if (pdata->led_config[i].led_current == 0)
+ continue;
+
+ /* Set default current */
+ lp55xx_write(chip, LP5523_REG_LED_CURRENT_BASE + i,
+ pdata->led_config[i].led_current);
+
+ lp55xx_write(chip, LP5523_REG_LED_PWM_BASE + i, 0xff);
+ /* let current stabilize 2 - 4ms before measurements start */
+ usleep_range(2000, 4000);
+ lp55xx_write(chip, LP5523_REG_LED_TEST_CTRL,
+ LP5523_EN_LEDTEST | i);
+ /* ADC conversion time is 2.7 ms typically */
+ usleep_range(3000, 6000);
+ ret = lp55xx_read(chip, LP5523_REG_STATUS, &status);
+ if (!(status & LP5523_LEDTEST_DONE))
+ usleep_range(3000, 6000);/* Was not ready. Wait. */
+ ret |= lp55xx_read(chip, LP5523_REG_LED_TEST_ADC, &adc);
+
+ if (adc >= vdd || adc < LP5523_ADC_SHORTCIRC_LIM)
+ pos += sprintf(buf + pos, "LED %d FAIL\n", i);
+
+ lp55xx_write(chip, LP5523_REG_LED_PWM_BASE + i, 0x00);
+
+ /* Restore current */
+ lp55xx_write(chip, LP5523_REG_LED_CURRENT_BASE + i,
+ led->led_current);
+ led++;
+ }
+ if (pos == 0)
+ pos = sprintf(buf, "OK\n");
+ goto release_lock;
+fail:
+ pos = sprintf(buf, "FAIL\n");
+
+release_lock:
+ mutex_unlock(&chip->lock);
+
+ return pos;
+}
+
static DEVICE_ATTR(selftest, S_IRUGO, lp5523_selftest, NULL);
static struct attribute *lp5523_attributes[] = {
@@ -392,10 +392,6 @@ static const struct attribute_group lp5523_group = {
.attrs = lp5523_attributes,
};
-/*--------------------------------------------------------------*/
-/* Probe, Attach, Remove */
-/*--------------------------------------------------------------*/
-
/* Chip specific configurations */
static struct lp55xx_device_config lp5523_cfg = {
.max_channel = LP5523_MAX_LEDS,
--
1.7.9.5
Best Regards,
Milo
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