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authorLinus Torvalds <torvalds@linux-foundation.org>2013-11-12 08:27:42 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-12 08:27:42 +0100
commit85b656cf1560e27a89354a23f2c10ba229d2f173 (patch)
tree53c8b9d30c45dad618a704fd4a5b6aa5b95250cd /include
parentMerge tag 'clk-for-linus-3.13' of git://git.linaro.org/people/mturquette/linux (diff)
parentleds: lp55xx: handle enable pin in driver (diff)
downloadlinux-85b656cf1560e27a89354a23f2c10ba229d2f173.tar.xz
linux-85b656cf1560e27a89354a23f2c10ba229d2f173.zip
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
Diffstat (limited to 'include')
-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
3 files changed, 54 insertions, 4 deletions
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 */