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path: root/drivers/leds
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-rw-r--r--drivers/leds/Kconfig1
-rw-r--r--drivers/leds/leds-lm3530.c67
-rw-r--r--drivers/leds/leds-lp5521.c4
-rw-r--r--drivers/leds/leds-sunfire.c12
4 files changed, 63 insertions, 21 deletions
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 6c21c29..b591e72 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -365,6 +365,7 @@ config LEDS_NS2
config LEDS_NETXBIG
tristate "LED support for Big Network series LEDs"
depends on MACH_NET2BIG_V2 || MACH_NET5BIG_V2
+ depends on LEDS_CLASS
default y
help
This option enable support for LEDs found on the LaCie 2Big
diff --git a/drivers/leds/leds-lm3530.c b/drivers/leds/leds-lm3530.c
index 4d7ce76..3dd7090 100644
--- a/drivers/leds/leds-lm3530.c
+++ b/drivers/leds/leds-lm3530.c
@@ -68,17 +68,16 @@
#define LM3530_ALS2_IMP_SHIFT (4)
/* Zone Boundary Register defaults */
-#define LM3530_DEF_ZB_0 (0x33)
-#define LM3530_DEF_ZB_1 (0x66)
-#define LM3530_DEF_ZB_2 (0x99)
-#define LM3530_DEF_ZB_3 (0xCC)
+#define LM3530_ALS_ZB_MAX (4)
+#define LM3530_ALS_WINDOW_mV (1000)
+#define LM3530_ALS_OFFSET_mV (4)
/* Zone Target Register defaults */
-#define LM3530_DEF_ZT_0 (0x19)
-#define LM3530_DEF_ZT_1 (0x33)
+#define LM3530_DEF_ZT_0 (0x7F)
+#define LM3530_DEF_ZT_1 (0x66)
#define LM3530_DEF_ZT_2 (0x4C)
-#define LM3530_DEF_ZT_3 (0x66)
-#define LM3530_DEF_ZT_4 (0x7F)
+#define LM3530_DEF_ZT_3 (0x33)
+#define LM3530_DEF_ZT_4 (0x19)
struct lm3530_mode_map {
const char *mode;
@@ -150,6 +149,8 @@ static int lm3530_init_registers(struct lm3530_data *drvdata)
u8 als_imp_sel = 0;
u8 brightness;
u8 reg_val[LM3530_REG_MAX];
+ u8 zones[LM3530_ALS_ZB_MAX];
+ u32 als_vmin, als_vmax, als_vstep;
struct lm3530_platform_data *pltfm = drvdata->pdata;
struct i2c_client *client = drvdata->client;
@@ -161,6 +162,26 @@ static int lm3530_init_registers(struct lm3530_data *drvdata)
gen_config |= (LM3530_ENABLE_I2C);
if (drvdata->mode == LM3530_BL_MODE_ALS) {
+ if (pltfm->als_vmax == 0) {
+ pltfm->als_vmin = als_vmin = 0;
+ pltfm->als_vmin = als_vmax = LM3530_ALS_WINDOW_mV;
+ }
+
+ als_vmin = pltfm->als_vmin;
+ als_vmax = pltfm->als_vmax;
+
+ if ((als_vmax - als_vmin) > LM3530_ALS_WINDOW_mV)
+ pltfm->als_vmax = als_vmax =
+ als_vmin + LM3530_ALS_WINDOW_mV;
+
+ /* n zone boundary makes n+1 zones */
+ als_vstep = (als_vmax - als_vmin) / (LM3530_ALS_ZB_MAX + 1);
+
+ for (i = 0; i < LM3530_ALS_ZB_MAX; i++)
+ zones[i] = (((als_vmin + LM3530_ALS_OFFSET_mV) +
+ als_vstep + (i * als_vstep)) * LED_FULL)
+ / 1000;
+
als_config =
(pltfm->als_avrg_time << LM3530_ALS_AVG_TIME_SHIFT) |
(LM3530_ENABLE_ALS) |
@@ -169,6 +190,7 @@ static int lm3530_init_registers(struct lm3530_data *drvdata)
als_imp_sel =
(pltfm->als1_resistor_sel << LM3530_ALS1_IMP_SHIFT) |
(pltfm->als2_resistor_sel << LM3530_ALS2_IMP_SHIFT);
+
}
if (drvdata->mode == LM3530_BL_MODE_PWM)
@@ -190,10 +212,10 @@ static int lm3530_init_registers(struct lm3530_data *drvdata)
reg_val[3] = 0x00; /* LM3530_ALS_ZONE_REG */
reg_val[4] = als_imp_sel; /* LM3530_ALS_IMP_SELECT */
reg_val[5] = brightness; /* LM3530_BRT_CTRL_REG */
- reg_val[6] = LM3530_DEF_ZB_0; /* LM3530_ALS_ZB0_REG */
- reg_val[7] = LM3530_DEF_ZB_1; /* LM3530_ALS_ZB1_REG */
- reg_val[8] = LM3530_DEF_ZB_2; /* LM3530_ALS_ZB2_REG */
- reg_val[9] = LM3530_DEF_ZB_3; /* LM3530_ALS_ZB3_REG */
+ reg_val[6] = zones[0]; /* LM3530_ALS_ZB0_REG */
+ reg_val[7] = zones[1]; /* LM3530_ALS_ZB1_REG */
+ reg_val[8] = zones[2]; /* LM3530_ALS_ZB2_REG */
+ reg_val[9] = zones[3]; /* LM3530_ALS_ZB3_REG */
reg_val[10] = LM3530_DEF_ZT_0; /* LM3530_ALS_Z0T_REG */
reg_val[11] = LM3530_DEF_ZT_1; /* LM3530_ALS_Z1T_REG */
reg_val[12] = LM3530_DEF_ZT_2; /* LM3530_ALS_Z2T_REG */
@@ -265,6 +287,24 @@ static void lm3530_brightness_set(struct led_classdev *led_cdev,
}
}
+static ssize_t lm3530_mode_get(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct i2c_client *client = container_of(
+ dev->parent, struct i2c_client, dev);
+ struct lm3530_data *drvdata = i2c_get_clientdata(client);
+ int i, len = 0;
+
+ for (i = 0; i < ARRAY_SIZE(mode_map); i++)
+ if (drvdata->mode == mode_map[i].mode_val)
+ len += sprintf(buf + len, "[%s] ", mode_map[i].mode);
+ else
+ len += sprintf(buf + len, "%s ", mode_map[i].mode);
+
+ len += sprintf(buf + len, "\n");
+
+ return len;
+}
static ssize_t lm3530_mode_set(struct device *dev, struct device_attribute
*attr, const char *buf, size_t size)
@@ -298,8 +338,7 @@ static ssize_t lm3530_mode_set(struct device *dev, struct device_attribute
return sizeof(drvdata->mode);
}
-
-static DEVICE_ATTR(mode, 0644, NULL, lm3530_mode_set);
+static DEVICE_ATTR(mode, 0644, lm3530_mode_get, lm3530_mode_set);
static int __devinit lm3530_probe(struct i2c_client *client,
const struct i2c_device_id *id)
diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c
index cc1dc48..9fc122c 100644
--- a/drivers/leds/leds-lp5521.c
+++ b/drivers/leds/leds-lp5521.c
@@ -744,7 +744,7 @@ fail1:
return ret;
}
-static int lp5521_remove(struct i2c_client *client)
+static int __devexit lp5521_remove(struct i2c_client *client)
{
struct lp5521_chip *chip = i2c_get_clientdata(client);
int i;
@@ -775,7 +775,7 @@ static struct i2c_driver lp5521_driver = {
.name = "lp5521",
},
.probe = lp5521_probe,
- .remove = lp5521_remove,
+ .remove = __devexit_p(lp5521_remove),
.id_table = lp5521_id,
};
diff --git a/drivers/leds/leds-sunfire.c b/drivers/leds/leds-sunfire.c
index ab6d18f..1757396 100644
--- a/drivers/leds/leds-sunfire.c
+++ b/drivers/leds/leds-sunfire.c
@@ -127,17 +127,19 @@ static int __devinit sunfire_led_generic_probe(struct platform_device *pdev,
struct led_type *types)
{
struct sunfire_drvdata *p;
- int i, err = -EINVAL;
+ int i, err;
if (pdev->num_resources != 1) {
printk(KERN_ERR PFX "Wrong number of resources %d, should be 1\n",
pdev->num_resources);
+ err = -EINVAL;
goto out;
}
p = kzalloc(sizeof(*p), GFP_KERNEL);
if (!p) {
printk(KERN_ERR PFX "Could not allocate struct sunfire_drvdata\n");
+ err = -ENOMEM;
goto out;
}
@@ -160,14 +162,14 @@ static int __devinit sunfire_led_generic_probe(struct platform_device *pdev,
dev_set_drvdata(&pdev->dev, p);
- err = 0;
-out:
- return err;
+ return 0;
out_unregister_led_cdevs:
for (i--; i >= 0; i--)
led_classdev_unregister(&p->leds[i].led_cdev);
- goto out;
+ kfree(p);
+out:
+ return err;
}
static int __devexit sunfire_led_generic_remove(struct platform_device *pdev)
generated by cgit v0.10.2 at 2024-09-21 19:53:10 (GMT)