diff --git a/drivers/leds/leds-pca9633.c b/drivers/leds/leds-pca9633.c index edcd706c5631f1024b305821a95857996260f593..2f2f9c43535dcb1c3940178c6b56e4f6280ba831 100644 --- a/drivers/leds/leds-pca9633.c +++ b/drivers/leds/leds-pca9633.c @@ -22,6 +22,7 @@ #include #include #include +#include /* LED select registers determine the source that drives LED outputs */ #define PCA9633_LED_OFF 0x0 /* LED driver off */ @@ -96,13 +97,13 @@ static int __devinit pca9633_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct pca9633_led *pca9633; - struct led_platform_data *pdata; + struct pca9633_platform_data *pdata; int i, err; pdata = client->dev.platform_data; if (pdata) { - if (pdata->num_leds <= 0 || pdata->num_leds > 4) { + if (pdata->leds.num_leds <= 0 || pdata->leds.num_leds > 4) { dev_err(&client->dev, "board info must claim at most 4 LEDs"); return -EINVAL; } @@ -119,14 +120,14 @@ static int __devinit pca9633_probe(struct i2c_client *client, pca9633[i].led_num = i; /* Platform data can specify LED names and default triggers */ - if (pdata && i < pdata->num_leds) { - if (pdata->leds[i].name) + if (pdata && i < pdata->leds.num_leds) { + if (pdata->leds.leds[i].name) snprintf(pca9633[i].name, sizeof(pca9633[i].name), "pca9633:%s", - pdata->leds[i].name); - if (pdata->leds[i].default_trigger) + pdata->leds.leds[i].name); + if (pdata->leds.leds[i].default_trigger) pca9633[i].led_cdev.default_trigger = - pdata->leds[i].default_trigger; + pdata->leds.leds[i].default_trigger; } else { snprintf(pca9633[i].name, sizeof(pca9633[i].name), "pca9633:%d", i); @@ -145,6 +146,10 @@ static int __devinit pca9633_probe(struct i2c_client *client, /* Disable LED all-call address and set normal mode */ i2c_smbus_write_byte_data(client, PCA9633_MODE1, 0x00); + /* Configure output: open-drain or totem pole (push-pull) */ + if (pdata && pdata->outdrv == PCA9633_OPEN_DRAIN) + i2c_smbus_write_byte_data(client, PCA9633_MODE2, 0x01); + /* Turn off LEDs */ i2c_smbus_write_byte_data(client, PCA9633_LEDOUT, 0x00); diff --git a/include/linux/platform_data/leds-pca9633.h b/include/linux/platform_data/leds-pca9633.h new file mode 100644 index 0000000000000000000000000000000000000000..c5bf29b6fa7f8c1eddafb23508bb6030509dd7ae --- /dev/null +++ b/include/linux/platform_data/leds-pca9633.h @@ -0,0 +1,35 @@ +/* + * PCA9633 LED chip driver. + * + * Copyright 2012 bct electronic GmbH + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +#ifndef __LINUX_PCA9633_H +#define __LINUX_PCA9633_H +#include + +enum pca9633_outdrv { + PCA9633_OPEN_DRAIN, + PCA9633_TOTEM_POLE, /* aka push-pull */ +}; + +struct pca9633_platform_data { + struct led_platform_data leds; + enum pca9633_outdrv outdrv; +}; + +#endif /* __LINUX_PCA9633_H*/