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| author | Peter Meerwald <pmeerw@pmeerw.net> | 2014-07-02 22:50:34 -0700 |
|---|---|---|
| committer | Bryan Wu <cooloney@gmail.com> | 2014-07-03 11:52:30 -0700 |
| commit | 3dfedb9d545346958311b8d73f90b8522d1fc759 (patch) | |
| tree | e054dccbd91ab311b1ec11e83774494d9cdf0e22 /drivers/leds | |
| parent | 6522fe1c39a79d4753e37d912876315720119f82 (diff) | |
| download | linux-3dfedb9d545346958311b8d73f90b8522d1fc759.tar.bz2 | |
leds:pca963x: Add support for PCA9635 LED driver chip
supports 16 PWM-controlled LEDs
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
Diffstat (limited to 'drivers/leds')
| -rw-r--r-- | drivers/leds/leds-pca963x.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/leds/leds-pca963x.c b/drivers/leds/leds-pca963x.c index 82589c0a5689..4438be9980a6 100644 --- a/drivers/leds/leds-pca963x.c +++ b/drivers/leds/leds-pca963x.c @@ -12,7 +12,7 @@ * directory of this archive for more details. * * LED driver for the PCA9633 I2C LED driver (7-bit slave address 0x62) - * LED driver for the PCA9634 I2C LED driver (7-bit slave address set by hw.) + * LED driver for the PCA9634/5 I2C LED driver (7-bit slave address set by hw.) * * Note that hardware blinking violates the leds infrastructure driver * interface since the hardware only supports blinking all LEDs with the @@ -52,6 +52,7 @@ enum pca963x_type { pca9633, pca9634, + pca9635, }; struct pca963x_chipdef { @@ -74,6 +75,12 @@ static struct pca963x_chipdef pca963x_chipdefs[] = { .ledout_base = 0xc, .n_leds = 8, }, + [pca9635] = { + .grppwm = 0x12, + .grpfreq = 0x13, + .ledout_base = 0x14, + .n_leds = 16, + }, }; /* Total blink period in milliseconds */ @@ -84,6 +91,7 @@ static const struct i2c_device_id pca963x_id[] = { { "pca9632", pca9633 }, { "pca9633", pca9633 }, { "pca9634", pca9634 }, + { "pca9635", pca9635 }, { } }; MODULE_DEVICE_TABLE(i2c, pca963x_id); @@ -107,7 +115,7 @@ struct pca963x_led { struct work_struct work; enum led_brightness brightness; struct led_classdev led_cdev; - int led_num; /* 0 .. 7 potentially */ + int led_num; /* 0 .. 15 potentially */ enum pca963x_cmd cmd; char name[32]; u8 gdc; @@ -321,6 +329,7 @@ static const struct of_device_id of_pca963x_match[] = { { .compatible = "nxp,pca9632", }, { .compatible = "nxp,pca9633", }, { .compatible = "nxp,pca9634", }, + { .compatible = "nxp,pca9635", }, {}, }; #else @@ -375,9 +384,8 @@ static int pca963x_probe(struct i2c_client *client, pca963x_chip->leds = pca963x; /* Turn off LEDs by default*/ - i2c_smbus_write_byte_data(client, chip->ledout_base, 0x00); - if (chip->n_leds > 4) - i2c_smbus_write_byte_data(client, chip->ledout_base + 1, 0x00); + for (i = 0; i < chip->n_leds / 4; i++) + i2c_smbus_write_byte_data(client, chip->ledout_base + i, 0x00); for (i = 0; i < chip->n_leds; i++) { pca963x[i].led_num = i; |