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authorLinus Torvalds <torvalds@linux-foundation.org>2013-11-12 11:27:42 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-12 11:27:42 +0400
commit85b656cf1560e27a89354a23f2c10ba229d2f173 (patch)
tree53c8b9d30c45dad618a704fd4a5b6aa5b95250cd
parent2b684c073f32b557661eba191ce0a584020367e2 (diff)
parent30dae2f98612d7c8cd855861b9de205ebd9ef4fa (diff)
downloadlinux-85b656cf1560e27a89354a23f2c10ba229d2f173.tar.xz
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
Pull LED subsystem changes from Bryan Wu: "LED subsystem updates for 3.13 are basically cleanup and also add a new driver for PCA9685" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds: leds: lp55xx: handle enable pin in driver leds-gpio: of: led should not be created if its status is disabled of: introduce of_get_available_child_count leds: Added driver for the NXP PCA9685 I2C chip leds: pwm: Remove redundant of_match_ptr leds: Include linux/of.h header leds: dac124s085: Remove redundant spi_set_drvdata leds: lp55xx: enable setting default trigger leds: blinkm: Remove redundant break
-rw-r--r--Documentation/devicetree/bindings/leds/leds-lp55xx.txt11
-rw-r--r--arch/arm/mach-omap2/board-rx51-peripherals.c20
-rw-r--r--drivers/leds/Kconfig10
-rw-r--r--drivers/leds/Makefile1
-rw-r--r--drivers/leds/leds-blinkm.c3
-rw-r--r--drivers/leds/leds-dac124s085.c3
-rw-r--r--drivers/leds/leds-gpio.c7
-rw-r--r--drivers/leds/leds-lp5523.c1
-rw-r--r--drivers/leds/leds-lp5562.c1
-rw-r--r--drivers/leds/leds-lp55xx-common.c28
-rw-r--r--drivers/leds/leds-lp8501.c1
-rw-r--r--drivers/leds/leds-ns2.c1
-rw-r--r--drivers/leds/leds-pca9685.c213
-rw-r--r--drivers/leds/leds-pwm.c2
-rw-r--r--include/linux/of.h16
-rw-r--r--include/linux/platform_data/leds-lp55xx.h7
-rw-r--r--include/linux/platform_data/leds-pca9685.h35
17 files changed, 312 insertions, 48 deletions
diff --git a/Documentation/devicetree/bindings/leds/leds-lp55xx.txt b/Documentation/devicetree/bindings/leds/leds-lp55xx.txt
index a61727f9a6d1..c55b8c016a9e 100644
--- a/Documentation/devicetree/bindings/leds/leds-lp55xx.txt
+++ b/Documentation/devicetree/bindings/leds/leds-lp55xx.txt
@@ -10,6 +10,7 @@ Each child has own specific current settings
- max-cur: Maximun current at each led channel.
Optional properties:
+- enable-gpio: GPIO attached to the chip's enable pin
- label: Used for naming LEDs
- pwr-sel: LP8501 specific property. Power selection for output channels.
0: D1~9 are connected to VDD
@@ -17,12 +18,15 @@ Optional properties:
2: D1~6 with VOUT, D7~9 with VDD
3: D1~9 are connected to VOUT
-Alternatively, each child can have specific channel name
-- chan-name: Name of each channel name
+Alternatively, each child can have a specific channel name and trigger:
+- chan-name (optional): name of channel
+- linux,default-trigger (optional): see
+ Documentation/devicetree/bindings/leds/common.txt
example 1) LP5521
3 LED channels, external clock used. Channel names are 'lp5521_pri:channel0',
-'lp5521_pri:channel1' and 'lp5521_pri:channel2'
+'lp5521_pri:channel1' and 'lp5521_pri:channel2', with a heartbeat trigger
+on channel 0.
lp5521@32 {
compatible = "national,lp5521";
@@ -33,6 +37,7 @@ lp5521@32 {
chan0 {
led-cur = /bits/ 8 <0x2f>;
max-cur = /bits/ 8 <0x5f>;
+ linux,default-trigger = "heartbeat";
};
chan1 {
diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
index 5c0d0e120420..f093af17f5e6 100644
--- a/arch/arm/mach-omap2/board-rx51-peripherals.c
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
@@ -213,29 +213,11 @@ static struct lp55xx_led_config rx51_lp5523_led_config[] = {
}
};
-static int rx51_lp5523_setup(void)
-{
- return gpio_request_one(RX51_LP5523_CHIP_EN_GPIO, GPIOF_DIR_OUT,
- "lp5523_enable");
-}
-
-static void rx51_lp5523_release(void)
-{
- gpio_free(RX51_LP5523_CHIP_EN_GPIO);
-}
-
-static void rx51_lp5523_enable(bool state)
-{
- gpio_set_value(RX51_LP5523_CHIP_EN_GPIO, !!state);
-}
-
static struct lp55xx_platform_data rx51_lp5523_platform_data = {
.led_config = rx51_lp5523_led_config,
.num_channels = ARRAY_SIZE(rx51_lp5523_led_config),
.clock_mode = LP55XX_CLOCK_AUTO,
- .setup_resources = rx51_lp5523_setup,
- .release_resources = rx51_lp5523_release,
- .enable = rx51_lp5523_enable,
+ .enable_gpio = RX51_LP5523_CHIP_EN_GPIO,
};
#endif
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 875bbe4c962e..72156c123033 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -300,6 +300,16 @@ config LEDS_PCA963X
LED driver chip accessed via the I2C bus. Supported
devices include PCA9633 and PCA9634
+config LEDS_PCA9685
+ tristate "LED support for PCA9685 I2C chip"
+ depends on LEDS_CLASS
+ depends on I2C
+ help
+ This option enables support for LEDs connected to the PCA9685
+ LED driver chip accessed via the I2C bus.
+ The PCA9685 offers 12-bit PWM (4095 levels of brightness) on
+ 16 individual channels.
+
config LEDS_WM831X_STATUS
tristate "LED support for status LEDs on WM831x PMICs"
depends on LEDS_CLASS
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index 8979b0b2c85e..3cd76dbd9be2 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -36,6 +36,7 @@ obj-$(CONFIG_LEDS_OT200) += leds-ot200.o
obj-$(CONFIG_LEDS_FSG) += leds-fsg.o
obj-$(CONFIG_LEDS_PCA955X) += leds-pca955x.o
obj-$(CONFIG_LEDS_PCA963X) += leds-pca963x.o
+obj-$(CONFIG_LEDS_PCA9685) += leds-pca9685.o
obj-$(CONFIG_LEDS_DA903X) += leds-da903x.o
obj-$(CONFIG_LEDS_DA9052) += leds-da9052.o
obj-$(CONFIG_LEDS_WM831X_STATUS) += leds-wm831x-status.o
diff --git a/drivers/leds/leds-blinkm.c b/drivers/leds/leds-blinkm.c
index a502678cc7f5..66d0a57db221 100644
--- a/drivers/leds/leds-blinkm.c
+++ b/drivers/leds/leds-blinkm.c
@@ -161,13 +161,10 @@ static ssize_t show_color_common(struct device *dev, char *buf, int color)
switch (color) {
case RED:
return scnprintf(buf, PAGE_SIZE, "%02X\n", data->red);
- break;
case GREEN:
return scnprintf(buf, PAGE_SIZE, "%02X\n", data->green);
- break;
case BLUE:
return scnprintf(buf, PAGE_SIZE, "%02X\n", data->blue);
- break;
default:
return -EINVAL;
}
diff --git a/drivers/leds/leds-dac124s085.c b/drivers/leds/leds-dac124s085.c
index 1f9d8e62d37e..db3ba8b42517 100644
--- a/drivers/leds/leds-dac124s085.c
+++ b/drivers/leds/leds-dac124s085.c
@@ -101,7 +101,6 @@ eledcr:
while (i--)
led_classdev_unregister(&dac->leds[i].ldev);
- spi_set_drvdata(spi, NULL);
return ret;
}
@@ -115,8 +114,6 @@ static int dac124s085_remove(struct spi_device *spi)
cancel_work_sync(&dac->leds[i].work);
}
- spi_set_drvdata(spi, NULL);
-
return 0;
}
diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index e8b01e57348d..78b0e273a903 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -15,6 +15,7 @@
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/leds.h>
+#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/of_gpio.h>
#include <linux/slab.h>
@@ -170,11 +171,11 @@ static struct gpio_leds_priv *gpio_leds_create_of(struct platform_device *pdev)
int count, ret;
/* count LEDs in this device, so we know how much to allocate */
- count = of_get_child_count(np);
+ count = of_get_available_child_count(np);
if (!count)
return ERR_PTR(-ENODEV);
- for_each_child_of_node(np, child)
+ for_each_available_child_of_node(np, child)
if (of_get_gpio(child, 0) == -EPROBE_DEFER)
return ERR_PTR(-EPROBE_DEFER);
@@ -183,7 +184,7 @@ static struct gpio_leds_priv *gpio_leds_create_of(struct platform_device *pdev)
if (!priv)
return ERR_PTR(-ENOMEM);
- for_each_child_of_node(np, child) {
+ for_each_available_child_of_node(np, child) {
struct gpio_led led = {};
enum of_gpio_flags flags;
const char *state;
diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
index fe3bcbb5747f..6b553d9f4266 100644
--- a/drivers/leds/leds-lp5523.c
+++ b/drivers/leds/leds-lp5523.c
@@ -29,6 +29,7 @@
#include <linux/leds.h>
#include <linux/module.h>
#include <linux/mutex.h>
+#include <linux/of.h>
#include <linux/platform_data/leds-lp55xx.h>
#include <linux/slab.h>
diff --git a/drivers/leds/leds-lp5562.c b/drivers/leds/leds-lp5562.c
index 2585cfd57711..bf006f4e44a0 100644
--- a/drivers/leds/leds-lp5562.c
+++ b/drivers/leds/leds-lp5562.c
@@ -17,6 +17,7 @@
#include <linux/leds.h>
#include <linux/module.h>
#include <linux/mutex.h>
+#include <linux/of.h>
#include <linux/platform_data/leds-lp55xx.h>
#include <linux/slab.h>
diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c
index 351825b96f16..9acc6bb7deef 100644
--- a/drivers/leds/leds-lp55xx-common.c
+++ b/drivers/leds/leds-lp55xx-common.c
@@ -20,6 +20,8 @@
#include <linux/module.h>
#include <linux/platform_data/leds-lp55xx.h>
#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/of_gpio.h>
#include "leds-lp55xx-common.h"
@@ -165,6 +167,7 @@ static int lp55xx_init_led(struct lp55xx_led *led,
led->led_current = pdata->led_config[chan].led_current;
led->max_current = pdata->led_config[chan].max_current;
led->chan_nr = pdata->led_config[chan].chan_nr;
+ led->cdev.default_trigger = pdata->led_config[chan].default_trigger;
if (led->chan_nr >= max_channel) {
dev_err(dev, "Use channel numbers between 0 and %d\n",
@@ -406,18 +409,18 @@ int lp55xx_init_device(struct lp55xx_chip *chip)
if (!pdata || !cfg)
return -EINVAL;
- if (pdata->setup_resources) {
- ret = pdata->setup_resources();
+ if (gpio_is_valid(pdata->enable_gpio)) {
+ ret = devm_gpio_request_one(dev, pdata->enable_gpio,
+ GPIOF_DIR_OUT, "lp5523_enable");
if (ret < 0) {
- dev_err(dev, "setup resoure err: %d\n", ret);
+ dev_err(dev, "could not acquire enable gpio (err=%d)\n",
+ ret);
goto err;
}
- }
- if (pdata->enable) {
- pdata->enable(0);
+ gpio_set_value(pdata->enable_gpio, 0);
usleep_range(1000, 2000); /* Keep enable down at least 1ms */
- pdata->enable(1);
+ gpio_set_value(pdata->enable_gpio, 1);
usleep_range(1000, 2000); /* 500us abs min. */
}
@@ -458,11 +461,8 @@ void lp55xx_deinit_device(struct lp55xx_chip *chip)
if (chip->clk)
clk_disable_unprepare(chip->clk);
- if (pdata->enable)
- pdata->enable(0);
-
- if (pdata->release_resources)
- pdata->release_resources();
+ if (gpio_is_valid(pdata->enable_gpio))
+ gpio_set_value(pdata->enable_gpio, 0);
}
EXPORT_SYMBOL_GPL(lp55xx_deinit_device);
@@ -586,6 +586,8 @@ int lp55xx_of_populate_pdata(struct device *dev, struct device_node *np)
of_property_read_string(child, "chan-name", &cfg[i].name);
of_property_read_u8(child, "led-cur", &cfg[i].led_current);
of_property_read_u8(child, "max-cur", &cfg[i].max_current);
+ cfg[i].default_trigger =
+ of_get_property(child, "linux,default-trigger", NULL);
i++;
}
@@ -593,6 +595,8 @@ int lp55xx_of_populate_pdata(struct device *dev, struct device_node *np)
of_property_read_string(np, "label", &pdata->label);
of_property_read_u8(np, "clock-mode", &pdata->clock_mode);
+ pdata->enable_gpio = of_get_named_gpio(np, "enable-gpio", 0);
+
/* LP8501 specific */
of_property_read_u8(np, "pwr-sel", (u8 *)&pdata->pwr_sel);
diff --git a/drivers/leds/leds-lp8501.c b/drivers/leds/leds-lp8501.c
index 8d55a780ca46..f1c704f2243a 100644
--- a/drivers/leds/leds-lp8501.c
+++ b/drivers/leds/leds-lp8501.c
@@ -18,6 +18,7 @@
#include <linux/leds.h>
#include <linux/module.h>
#include <linux/mutex.h>
+#include <linux/of.h>
#include <linux/platform_data/leds-lp55xx.h>
#include <linux/slab.h>
diff --git a/drivers/leds/leds-ns2.c b/drivers/leds/leds-ns2.c
index 141f13438e80..c7a4230233ea 100644
--- a/drivers/leds/leds-ns2.c
+++ b/drivers/leds/leds-ns2.c
@@ -30,6 +30,7 @@
#include <linux/leds.h>
#include <linux/module.h>
#include <linux/platform_data/leds-kirkwood-ns2.h>
+#include <linux/of.h>
#include <linux/of_gpio.h>
/*
diff --git a/drivers/leds/leds-pca9685.c b/drivers/leds/leds-pca9685.c
new file mode 100644
index 000000000000..6e1ef3a9d6ef
--- /dev/null
+++ b/drivers/leds/leds-pca9685.c
@@ -0,0 +1,213 @@
+/*
+ * Copyright 2013 Maximilian Güntner <maximilian.guentner@gmail.com>
+ *
+ * This file is subject to the terms and conditions of version 2 of
+ * the GNU General Public License. See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * Based on leds-pca963x.c driver by
+ * Peter Meerwald <p.meerwald@bct-electronic.com>
+ *
+ * Driver for the NXP PCA9685 12-Bit PWM LED driver chip.
+ *
+ */
+
+#include <linux/ctype.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/leds.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/workqueue.h>
+
+#include <linux/platform_data/leds-pca9685.h>
+
+/* Register Addresses */
+#define PCA9685_MODE1 0x00
+#define PCA9685_MODE2 0x01
+#define PCA9685_LED0_ON_L 0x06
+#define PCA9685_ALL_LED_ON_L 0xFA
+
+/* MODE1 Register */
+#define PCA9685_ALLCALL 0x00
+#define PCA9685_SLEEP 0x04
+#define PCA9685_AI 0x05
+
+/* MODE2 Register */
+#define PCA9685_INVRT 0x04
+#define PCA9685_OUTDRV 0x02
+
+static const struct i2c_device_id pca9685_id[] = {
+ { "pca9685", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, pca9685_id);
+
+struct pca9685_led {
+ struct i2c_client *client;
+ struct work_struct work;
+ u16 brightness;
+ struct led_classdev led_cdev;
+ int led_num; /* 0-15 */
+ char name[32];
+};
+
+static void pca9685_write_msg(struct i2c_client *client, u8 *buf, u8 len)
+{
+ struct i2c_msg msg = {
+ .addr = client->addr,
+ .flags = 0x00,
+ .len = len,
+ .buf = buf
+ };
+ i2c_transfer(client->adapter, &msg, 1);
+}
+
+static void pca9685_all_off(struct i2c_client *client)
+{
+ u8 i2c_buffer[5] = {PCA9685_ALL_LED_ON_L, 0x00, 0x00, 0x00, 0x10};
+ pca9685_write_msg(client, i2c_buffer, 5);
+}
+
+static void pca9685_led_work(struct work_struct *work)
+{
+ struct pca9685_led *pca9685;
+ u8 i2c_buffer[5];
+
+ pca9685 = container_of(work, struct pca9685_led, work);
+ i2c_buffer[0] = PCA9685_LED0_ON_L + 4 * pca9685->led_num;
+ /*
+ * 4095 is the maximum brightness, so we set the ON time to 0x1000
+ * which disables the PWM generator for that LED
+ */
+ if (pca9685->brightness == 4095)
+ *((__le16 *)(i2c_buffer+1)) = cpu_to_le16(0x1000);
+ else
+ *((__le16 *)(i2c_buffer+1)) = 0x0000;
+
+ if (pca9685->brightness == 0)
+ *((__le16 *)(i2c_buffer+3)) = cpu_to_le16(0x1000);
+ else if (pca9685->brightness == 4095)
+ *((__le16 *)(i2c_buffer+3)) = 0x0000;
+ else
+ *((__le16 *)(i2c_buffer+3)) = cpu_to_le16(pca9685->brightness);
+
+ pca9685_write_msg(pca9685->client, i2c_buffer, 5);
+}
+
+static void pca9685_led_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ struct pca9685_led *pca9685;
+ pca9685 = container_of(led_cdev, struct pca9685_led, led_cdev);
+ pca9685->brightness = value;
+
+ schedule_work(&pca9685->work);
+}
+
+static int pca9685_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct pca9685_led *pca9685;
+ struct pca9685_platform_data *pdata;
+ int err;
+ u8 i;
+
+ pdata = dev_get_platdata(&client->dev);
+ if (pdata) {
+ if (pdata->leds.num_leds < 1 || pdata->leds.num_leds > 15) {
+ dev_err(&client->dev, "board info must claim 1-16 LEDs");
+ return -EINVAL;
+ }
+ }
+
+ pca9685 = devm_kzalloc(&client->dev, 16 * sizeof(*pca9685), GFP_KERNEL);
+ if (!pca9685)
+ return -ENOMEM;
+
+ i2c_set_clientdata(client, pca9685);
+ pca9685_all_off(client);
+
+ for (i = 0; i < 16; i++) {
+ pca9685[i].client = client;
+ pca9685[i].led_num = i;
+ pca9685[i].name[0] = '\0';
+ if (pdata && i < pdata->leds.num_leds) {
+ if (pdata->leds.leds[i].name)
+ strncpy(pca9685[i].name,
+ pdata->leds.leds[i].name,
+ sizeof(pca9685[i].name)-1);
+ if (pdata->leds.leds[i].default_trigger)
+ pca9685[i].led_cdev.default_trigger =
+ pdata->leds.leds[i].default_trigger;
+ }
+ if (strlen(pca9685[i].name) == 0) {
+ /*
+ * Write adapter and address to the name as well.
+ * Otherwise multiple chips attached to one host would
+ * not work.
+ */
+ snprintf(pca9685[i].name, sizeof(pca9685[i].name),
+ "pca9685:%d:x%.2x:%d",
+ client->adapter->nr, client->addr, i);
+ }
+ pca9685[i].led_cdev.name = pca9685[i].name;
+ pca9685[i].led_cdev.max_brightness = 0xfff;
+ pca9685[i].led_cdev.brightness_set = pca9685_led_set;
+
+ INIT_WORK(&pca9685[i].work, pca9685_led_work);
+ err = led_classdev_register(&client->dev, &pca9685[i].led_cdev);
+ if (err < 0)
+ goto exit;
+ }
+
+ if (pdata)
+ i2c_smbus_write_byte_data(client, PCA9685_MODE2,
+ pdata->outdrv << PCA9685_OUTDRV |
+ pdata->inverted << PCA9685_INVRT);
+ else
+ i2c_smbus_write_byte_data(client, PCA9685_MODE2,
+ PCA9685_TOTEM_POLE << PCA9685_OUTDRV);
+ /* Enable Auto-Increment, enable oscillator, ALLCALL/SUBADDR disabled */
+ i2c_smbus_write_byte_data(client, PCA9685_MODE1, BIT(PCA9685_AI));
+
+ return 0;
+
+exit:
+ while (i--) {
+ led_classdev_unregister(&pca9685[i].led_cdev);
+ cancel_work_sync(&pca9685[i].work);
+ }
+ return err;
+}
+
+static int pca9685_remove(struct i2c_client *client)
+{
+ struct pca9685_led *pca9685 = i2c_get_clientdata(client);
+ u8 i;
+
+ for (i = 0; i < 16; i++) {
+ led_classdev_unregister(&pca9685[i].led_cdev);
+ cancel_work_sync(&pca9685[i].work);
+ }
+ pca9685_all_off(client);
+ return 0;
+}
+
+static struct i2c_driver pca9685_driver = {
+ .driver = {
+ .name = "leds-pca9685",
+ .owner = THIS_MODULE,
+ },
+ .probe = pca9685_probe,
+ .remove = pca9685_remove,
+ .id_table = pca9685_id,
+};
+
+module_i2c_driver(pca9685_driver);
+
+MODULE_AUTHOR("Maximilian Güntner <maximilian.guentner@gmail.com>");
+MODULE_DESCRIPTION("PCA9685 LED Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c
index bb6f94898541..2848171b8576 100644
--- a/drivers/leds/leds-pwm.c
+++ b/drivers/leds/leds-pwm.c
@@ -232,7 +232,7 @@ static struct platform_driver led_pwm_driver = {
.driver = {
.name = "leds_pwm",
.owner = THIS_MODULE,
- .of_match_table = of_match_ptr(of_pwm_leds_match),
+ .of_match_table = of_pwm_leds_match,
},
};
diff --git a/include/linux/of.h b/include/linux/of.h
index c08c07e249b3..ebf75f760bd3 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -226,6 +226,17 @@ static inline int of_get_child_count(const struct device_node *np)
return num;
}
+static inline int of_get_available_child_count(const struct device_node *np)
+{
+ struct device_node *child;
+ int num = 0;
+
+ for_each_available_child_of_node(np, child)
+ num++;
+
+ return num;
+}
+
/* cache lookup */
extern struct device_node *of_find_next_cache_node(const struct device_node *);
extern struct device_node *of_find_node_with_property(
@@ -378,6 +389,11 @@ static inline int of_get_child_count(const struct device_node *np)
return 0;
}
+static inline int of_get_available_child_count(const struct device_node *np)
+{
+ return 0;
+}
+
static inline int of_device_is_compatible(const struct device_node *device,
const char *name)
{
diff --git a/include/linux/platform_data/leds-lp55xx.h b/include/linux/platform_data/leds-lp55xx.h
index 51a2ff579d60..624ff9edad6f 100644
--- a/include/linux/platform_data/leds-lp55xx.h
+++ b/include/linux/platform_data/leds-lp55xx.h
@@ -22,6 +22,7 @@
struct lp55xx_led_config {
const char *name;
+ const char *default_trigger;
u8 chan_nr;
u8 led_current; /* mA x10, 0 if led is not connected */
u8 max_current;
@@ -66,10 +67,8 @@ struct lp55xx_platform_data {
/* Clock configuration */
u8 clock_mode;
- /* Platform specific functions */
- int (*setup_resources)(void);
- void (*release_resources)(void);
- void (*enable)(bool state);
+ /* optional enable GPIO */
+ int enable_gpio;
/* Predefined pattern data */
struct lp55xx_predef_pattern *patterns;
diff --git a/include/linux/platform_data/leds-pca9685.h b/include/linux/platform_data/leds-pca9685.h
new file mode 100644
index 000000000000..778e9e4249cc
--- /dev/null
+++ b/include/linux/platform_data/leds-pca9685.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2013 Maximilian Güntner <maximilian.guentner@gmail.com>
+ *
+ * This file is subject to the terms and conditions of version 2 of
+ * the GNU General Public License. See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * Based on leds-pca963x.h by Peter Meerwald <p.meerwald@bct-electronic.com>
+ *
+ * LED driver for the NXP PCA9685 PWM chip
+ *
+ */
+
+#ifndef __LINUX_PCA9685_H
+#define __LINUX_PCA9685_H
+
+#include <linux/leds.h>
+
+enum pca9685_outdrv {
+ PCA9685_OPEN_DRAIN,
+ PCA9685_TOTEM_POLE,
+};
+
+enum pca9685_inverted {
+ PCA9685_NOT_INVERTED,
+ PCA9685_INVERTED,
+};
+
+struct pca9685_platform_data {
+ struct led_platform_data leds;
+ enum pca9685_outdrv outdrv;
+ enum pca9685_inverted inverted;
+};
+
+#endif /* __LINUX_PCA9685_H */