aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--Documentation/ABI/testing/sysfs-class-led-driver-el15203000139
-rw-r--r--Documentation/devicetree/bindings/leds/leds-el15203000.txt69
-rw-r--r--drivers/leds/Kconfig17
-rw-r--r--drivers/leds/Makefile1
-rw-r--r--drivers/leds/led-class-flash.c50
-rw-r--r--drivers/leds/led-class.c10
-rw-r--r--drivers/leds/led-triggers.c90
-rw-r--r--drivers/leds/leds-an30259a.c7
-rw-r--r--drivers/leds/leds-bcm6328.c7
-rw-r--r--drivers/leds/leds-bcm6358.c7
-rw-r--r--drivers/leds/leds-el15203000.c357
-rw-r--r--drivers/leds/leds-lm3601x.c4
-rw-r--r--drivers/leds/leds-lm3692x.c47
-rw-r--r--drivers/leds/leds-mlxreg.c4
-rw-r--r--drivers/leds/leds-pca9532.c14
-rw-r--r--drivers/leds/leds-tlc591xx.c90
-rw-r--r--drivers/leds/leds.h6
-rw-r--r--drivers/leds/trigger/ledtrig-netdev.c5
-rw-r--r--include/linux/led-class-flash.h41
-rw-r--r--include/linux/leds.h100
20 files changed, 858 insertions, 207 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-led-driver-el15203000 b/Documentation/ABI/testing/sysfs-class-led-driver-el15203000
new file mode 100644
index 000000000000..f520ece9b64c
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-led-driver-el15203000
@@ -0,0 +1,139 @@
+What: /sys/class/leds/<led>/hw_pattern
+Date: September 2019
+KernelVersion: 5.5
+Description:
+ Specify a hardware pattern for the EL15203000 LED.
+ The LEDs board supports only predefined patterns by firmware
+ for specific LEDs.
+
+ Breathing mode for Screen frame light tube:
+ "0 4000 1 4000"
+
+ ^
+ |
+ Max-| ---
+ | / \
+ | / \
+ | / \ /
+ | / \ /
+ Min-|- ---
+ |
+ 0------4------8--> time (sec)
+
+ Cascade mode for Pipe LED:
+ "1 800 2 800 4 800 8 800 16 800"
+
+ ^
+ |
+ 0 On -|----+ +----+ +---
+ | | | | |
+ Off-| +-------------------+ +-------------------+
+ |
+ 1 On -| +----+ +----+
+ | | | | |
+ Off |----+ +-------------------+ +------------------
+ |
+ 2 On -| +----+ +----+
+ | | | | |
+ Off-|---------+ +-------------------+ +-------------
+ |
+ 3 On -| +----+ +----+
+ | | | | |
+ Off-|--------------+ +-------------------+ +--------
+ |
+ 4 On -| +----+ +----+
+ | | | | |
+ Off-|-------------------+ +-------------------+ +---
+ |
+ 0---0.8--1.6--2.4--3.2---4---4.8--5.6--6.4--7.2---8--> time (sec)
+
+ Inverted cascade mode for Pipe LED:
+ "30 800 29 800 27 800 23 800 15 800"
+
+ ^
+ |
+ 0 On -| +-------------------+ +-------------------+
+ | | | | |
+ Off-|----+ +----+ +---
+ |
+ 1 On -|----+ +-------------------+ +------------------
+ | | | | |
+ Off | +----+ +----+
+ |
+ 2 On -|---------+ +-------------------+ +-------------
+ | | | | |
+ Off-| +----+ +----+
+ |
+ 3 On -|--------------+ +-------------------+ +--------
+ | | | | |
+ Off-| +----+ +----+
+ |
+ 4 On -|-------------------+ +-------------------+ +---
+ | | | | |
+ Off-| +----+ +----+
+ |
+ 0---0.8--1.6--2.4--3.2---4---4.8--5.6--6.4--7.2---8--> time (sec)
+
+ Bounce mode for Pipe LED:
+ "1 800 2 800 4 800 8 800 16 800 16 800 8 800 4 800 2 800 1 800"
+
+ ^
+ |
+ 0 On -|----+ +--------
+ | | |
+ Off-| +---------------------------------------+
+ |
+ 1 On -| +----+ +----+
+ | | | | |
+ Off |----+ +-----------------------------+ +--------
+ |
+ 2 On -| +----+ +----+
+ | | | | |
+ Off-|---------+ +-------------------+ +-------------
+ |
+ 3 On -| +----+ +----+
+ | | | | |
+ Off-|--------------+ +---------+ +------------------
+ |
+ 4 On -| +---------+
+ | | |
+ Off-|-------------------+ +-----------------------
+ |
+ 0---0.8--1.6--2.4--3.2---4---4.8--5.6--6.4--7.2---8--> time (sec)
+
+ Inverted bounce mode for Pipe LED:
+ "30 800 29 800 27 800 23 800 15 800 15 800 23 800 27 800 29 800 30 800"
+
+ ^
+ |
+ 0 On -| +---------------------------------------+
+ | | |
+ Off-|----+ +--------
+ |
+ 1 On -|----+ +-----------------------------+ +--------
+ | | | | |
+ Off | +----+ +----+
+ |
+ 2 On -|---------+ +-------------------+ +-------------
+ | | | | |
+ Off-| +----+ +----+
+ |
+ 3 On -|--------------+ +---------+ +------------------
+ | | | | |
+ Off-| +----+ +----+
+ |
+ 4 On -|-------------------+ +-----------------------
+ | | |
+ Off-| +---------+
+ |
+ 0---0.8--1.6--2.4--3.2---4---4.8--5.6--6.4--7.2---8--> time (sec)
+
+What: /sys/class/leds/<led>/repeat
+Date: September 2019
+KernelVersion: 5.5
+Description:
+ EL15203000 supports only indefinitely patterns,
+ so this file should always store -1.
+
+ For more info, please see:
+ Documentation/ABI/testing/sysfs-class-led-trigger-pattern
diff --git a/Documentation/devicetree/bindings/leds/leds-el15203000.txt b/Documentation/devicetree/bindings/leds/leds-el15203000.txt
new file mode 100644
index 000000000000..182f0035ed28
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-el15203000.txt
@@ -0,0 +1,69 @@
+Crane Merchandising System - EL15203000 LED driver
+--------------------------------------------------
+
+This LED Board (aka RED LEDs board) is widely used in
+coffee vending machines produced by Crane Merchandising Systems.
+The board manages 3 LEDs and supports predefined blinking patterns
+for specific leds.
+
+Vending area LED encoded with symbol 'V' (hex code 0x56).
+Doesn't have any hardware blinking pattern.
+
+Screen light tube LED which surrounds vending machine screen and
+encoded with symbol 'S' (hex code 0x53). Supports blinking breathing pattern.
+
+Water Pipe LED encoded with symbol 'P' (hex code 0x50) and
+actually consists of 5 LEDs that exposed by protocol like one LED.
+Supports next patterns:
+- cascade pattern
+- inversed cascade pattern
+- bounce pattern
+- inversed bounce pattern
+
+Required properties:
+- compatible : "crane,el15203000"
+- #address-cells : must be 1
+- #size-cells : must be 0
+
+Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt
+apply. In particular, "reg" and "spi-max-frequency" properties must be given.
+
+Optional LED sub-node properties:
+- function:
+ see Documentation/devicetree/bindings/leds/common.txt
+- color:
+ see Documentation/devicetree/bindings/leds/common.txt
+
+Example
+-------
+
+#include <dt-bindings/leds/common.h>
+
+led-controller@0 {
+ compatible = "crane,el15203000";
+ reg = <0>;
+ spi-max-frequency = <50000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* water pipe */
+ led@50 {
+ reg = <0x50>;
+ function = "pipe";
+ color = <LED_COLOR_ID_RED>;
+ };
+
+ /* screen frame */
+ led@53 {
+ reg = <0x53>;
+ function = "screen";
+ color = <LED_COLOR_ID_RED>;
+ };
+
+ /* vending area */
+ led@56 {
+ reg = <0x56>;
+ function = "vend";
+ color = <LED_COLOR_ID_RED>;
+ };
+};
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 1988de1d64c0..4b68520ac251 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -17,7 +17,7 @@ if NEW_LEDS
config LEDS_CLASS
tristate "LED Class Support"
help
- This option enables the led sysfs class in /sys/class/leds. You'll
+ This option enables the LED sysfs class in /sys/class/leds. You'll
need this to do anything useful with LEDs. If unsure, say N.
config LEDS_CLASS_FLASH
@@ -35,7 +35,7 @@ config LEDS_BRIGHTNESS_HW_CHANGED
depends on LEDS_CLASS
help
This option enables support for the brightness_hw_changed attribute
- for led sysfs class devices under /sys/class/leds.
+ for LED sysfs class devices under /sys/class/leds.
See Documentation/ABI/testing/sysfs-class-led for details.
@@ -132,6 +132,19 @@ config LEDS_CR0014114
To compile this driver as a module, choose M here: the module
will be called leds-cr0014114.
+config LEDS_EL15203000
+ tristate "LED Support for Crane EL15203000"
+ depends on LEDS_CLASS
+ depends on SPI
+ depends on OF
+ help
+ This option enables support for EL15203000 LED Board
+ (aka RED LED board) which is widely used in coffee vending
+ machines produced by Crane Merchandising Systems.
+
+ To compile this driver as a module, choose M here: the module
+ will be called leds-el15203000.
+
config LEDS_LM3530
tristate "LCD Backlight driver for LM3530"
depends on LEDS_CLASS
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index 41fb073a39c1..2da39e896ce8 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -89,6 +89,7 @@ obj-$(CONFIG_LEDS_LM36274) += leds-lm36274.o
# LED SPI Drivers
obj-$(CONFIG_LEDS_CR0014114) += leds-cr0014114.o
obj-$(CONFIG_LEDS_DAC124S085) += leds-dac124s085.o
+obj-$(CONFIG_LEDS_EL15203000) += leds-el15203000.o
# LED Userspace Drivers
obj-$(CONFIG_LEDS_USER) += uleds.o
diff --git a/drivers/leds/led-class-flash.c b/drivers/leds/led-class-flash.c
index 60c3de5c6b9f..6eeb9effcf65 100644
--- a/drivers/leds/led-class-flash.c
+++ b/drivers/leds/led-class-flash.c
@@ -327,6 +327,56 @@ void led_classdev_flash_unregister(struct led_classdev_flash *fled_cdev)
}
EXPORT_SYMBOL_GPL(led_classdev_flash_unregister);
+static void devm_led_classdev_flash_release(struct device *dev, void *res)
+{
+ led_classdev_flash_unregister(*(struct led_classdev_flash **)res);
+}
+
+int devm_led_classdev_flash_register_ext(struct device *parent,
+ struct led_classdev_flash *fled_cdev,
+ struct led_init_data *init_data)
+{
+ struct led_classdev_flash **dr;
+ int ret;
+
+ dr = devres_alloc(devm_led_classdev_flash_release, sizeof(*dr),
+ GFP_KERNEL);
+ if (!dr)
+ return -ENOMEM;
+
+ ret = led_classdev_flash_register_ext(parent, fled_cdev, init_data);
+ if (ret) {
+ devres_free(dr);
+ return ret;
+ }
+
+ *dr = fled_cdev;
+ devres_add(parent, dr);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(devm_led_classdev_flash_register_ext);
+
+static int devm_led_classdev_flash_match(struct device *dev,
+ void *res, void *data)
+{
+ struct led_classdev_flash **p = res;
+
+ if (WARN_ON(!p || !*p))
+ return 0;
+
+ return *p == data;
+}
+
+void devm_led_classdev_flash_unregister(struct device *dev,
+ struct led_classdev_flash *fled_cdev)
+{
+ WARN_ON(devres_release(dev,
+ devm_led_classdev_flash_release,
+ devm_led_classdev_flash_match, fled_cdev));
+}
+EXPORT_SYMBOL_GPL(devm_led_classdev_flash_unregister);
+
static void led_clamp_align(struct led_flash_setting *s)
{
u32 v, offset;
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 647b1263c579..438774315e6c 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -74,13 +74,13 @@ static ssize_t max_brightness_show(struct device *dev,
static DEVICE_ATTR_RO(max_brightness);
#ifdef CONFIG_LEDS_TRIGGERS
-static DEVICE_ATTR(trigger, 0644, led_trigger_show, led_trigger_store);
-static struct attribute *led_trigger_attrs[] = {
- &dev_attr_trigger.attr,
+static BIN_ATTR(trigger, 0644, led_trigger_read, led_trigger_write, 0);
+static struct bin_attribute *led_trigger_bin_attrs[] = {
+ &bin_attr_trigger,
NULL,
};
static const struct attribute_group led_trigger_group = {
- .attrs = led_trigger_attrs,
+ .bin_attrs = led_trigger_bin_attrs,
};
#endif
@@ -403,7 +403,7 @@ EXPORT_SYMBOL_GPL(devm_led_classdev_register_ext);
static int devm_led_classdev_match(struct device *dev, void *res, void *data)
{
- struct led_cdev **p = res;
+ struct led_classdev **p = res;
if (WARN_ON(!p || !*p))
return 0;
diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c
index 23963e5cb5d6..79e30d2cb7a5 100644
--- a/drivers/leds/led-triggers.c
+++ b/drivers/leds/led-triggers.c
@@ -16,6 +16,7 @@
#include <linux/rwsem.h>
#include <linux/leds.h>
#include <linux/slab.h>
+#include <linux/mm.h>
#include "leds.h"
/*
@@ -26,9 +27,11 @@ LIST_HEAD(trigger_list);
/* Used by LED Class */
-ssize_t led_trigger_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
+ssize_t led_trigger_write(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *bin_attr, char *buf,
+ loff_t pos, size_t count)
{
+ struct device *dev = kobj_to_dev(kobj);
struct led_classdev *led_cdev = dev_get_drvdata(dev);
struct led_trigger *trig;
int ret = count;
@@ -64,39 +67,82 @@ unlock:
mutex_unlock(&led_cdev->led_access);
return ret;
}
-EXPORT_SYMBOL_GPL(led_trigger_store);
+EXPORT_SYMBOL_GPL(led_trigger_write);
-ssize_t led_trigger_show(struct device *dev, struct device_attribute *attr,
- char *buf)
+__printf(3, 4)
+static int led_trigger_snprintf(char *buf, ssize_t size, const char *fmt, ...)
+{
+ va_list args;
+ int i;
+
+ va_start(args, fmt);
+ if (size <= 0)
+ i = vsnprintf(NULL, 0, fmt, args);
+ else
+ i = vscnprintf(buf, size, fmt, args);
+ va_end(args);
+
+ return i;
+}
+
+static int led_trigger_format(char *buf, size_t size,
+ struct led_classdev *led_cdev)
{
- struct led_classdev *led_cdev = dev_get_drvdata(dev);
struct led_trigger *trig;
- int len = 0;
+ int len = led_trigger_snprintf(buf, size, "%s",
+ led_cdev->trigger ? "none" : "[none]");
+
+ list_for_each_entry(trig, &trigger_list, next_trig) {
+ bool hit = led_cdev->trigger &&
+ !strcmp(led_cdev->trigger->name, trig->name);
+
+ len += led_trigger_snprintf(buf + len, size - len,
+ " %s%s%s", hit ? "[" : "",
+ trig->name, hit ? "]" : "");
+ }
+
+ len += led_trigger_snprintf(buf + len, size - len, "\n");
+
+ return len;
+}
+
+/*
+ * It was stupid to create 10000 cpu triggers, but we are stuck with it now.
+ * Don't make that mistake again. We work around it here by creating binary
+ * attribute, which is not limited by length. This is _not_ good design, do not
+ * copy it.
+ */
+ssize_t led_trigger_read(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *attr, char *buf,
+ loff_t pos, size_t count)
+{
+ struct device *dev = kobj_to_dev(kobj);
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ void *data;
+ int len;
down_read(&triggers_list_lock);
down_read(&led_cdev->trigger_lock);
- if (!led_cdev->trigger)
- len += scnprintf(buf+len, PAGE_SIZE - len, "[none] ");
- else
- len += scnprintf(buf+len, PAGE_SIZE - len, "none ");
-
- list_for_each_entry(trig, &trigger_list, next_trig) {
- if (led_cdev->trigger && !strcmp(led_cdev->trigger->name,
- trig->name))
- len += scnprintf(buf+len, PAGE_SIZE - len, "[%s] ",
- trig->name);
- else
- len += scnprintf(buf+len, PAGE_SIZE - len, "%s ",
- trig->name);
+ len = led_trigger_format(NULL, 0, led_cdev);
+ data = kvmalloc(len + 1, GFP_KERNEL);
+ if (!data) {
+ up_read(&led_cdev->trigger_lock);
+ up_read(&triggers_list_lock);
+ return -ENOMEM;
}
+ len = led_trigger_format(data, len + 1, led_cdev);
+
up_read(&led_cdev->trigger_lock);
up_read(&triggers_list_lock);
- len += scnprintf(len+buf, PAGE_SIZE - len, "\n");
+ len = memory_read_from_buffer(buf, count, &pos, data, len);
+
+ kvfree(data);
+
return len;
}
-EXPORT_SYMBOL_GPL(led_trigger_show);
+EXPORT_SYMBOL_GPL(led_trigger_read);
/* Caller must ensure led_cdev->trigger_lock held */
int led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trig)
diff --git a/drivers/leds/leds-an30259a.c b/drivers/leds/leds-an30259a.c
index 250dc9d6f635..82350a28a564 100644
--- a/drivers/leds/leds-an30259a.c
+++ b/drivers/leds/leds-an30259a.c
@@ -305,6 +305,13 @@ static int an30259a_probe(struct i2c_client *client)
chip->regmap = devm_regmap_init_i2c(client, &an30259a_regmap_config);
+ if (IS_ERR(chip->regmap)) {
+ err = PTR_ERR(chip->regmap);
+ dev_err(&client->dev, "Failed to allocate register map: %d\n",
+ err);
+ goto exit;
+ }
+
for (i = 0; i < chip->num_leds; i++) {
struct led_init_data init_data = {};
diff --git a/drivers/leds/leds-bcm6328.c b/drivers/leds/leds-bcm6328.c
index c50d34e2b098..42e1b7598c3a 100644
--- a/drivers/leds/leds-bcm6328.c
+++ b/drivers/leds/leds-bcm6328.c
@@ -346,16 +346,11 @@ static int bcm6328_leds_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct device_node *np = pdev->dev.of_node;
struct device_node *child;
- struct resource *mem_r;
void __iomem *mem;
spinlock_t *lock; /* memory lock */
unsigned long val, *blink_leds, *blink_delay;
- mem_r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!mem_r)
- return -EINVAL;
-
- mem = devm_ioremap_resource(dev, mem_r);
+ mem = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(mem))
return PTR_ERR(mem);
diff --git a/drivers/leds/leds-bcm6358.c b/drivers/leds/leds-bcm6358.c
index aec285fd21c0..94fefd456ba0 100644
--- a/drivers/leds/leds-bcm6358.c
+++ b/drivers/leds/leds-bcm6358.c
@@ -151,17 +151,12 @@ static int bcm6358_leds_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct device_node *np = pdev->dev.of_node;
struct device_node *child;
- struct resource *mem_r;
void __iomem *mem;
spinlock_t *lock; /* memory lock */
unsigned long val;
u32 clk_div;
- mem_r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!mem_r)
- return -EINVAL;
-
- mem = devm_ioremap_resource(dev, mem_r);
+ mem = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(mem))
return PTR_ERR(mem);
diff --git a/drivers/leds/leds-el15203000.c b/drivers/leds/leds-el15203000.c
new file mode 100644
index 000000000000..298b13e4807a
--- /dev/null
+++ b/drivers/leds/leds-el15203000.c
@@ -0,0 +1,357 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Crane Merchandising Systems. All rights reserved.
+// Copyright (C) 2019 Oleh Kravchenko <oleg@kaa.org.ua>
+
+#include <linux/delay.h>
+#include <linux/leds.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/spi/spi.h>
+
+/*
+ * EL15203000 SPI protocol description:
+ * +-----+---------+
+ * | LED | COMMAND |
+ * +-----+---------+
+ * | 1 | 1 |
+ * +-----+---------+
+ * (*) LEDs MCU board expects 20 msec delay per byte.
+ *
+ * LEDs:
+ * +----------+--------------+-------------------------------------------+
+ * | ID | NAME | DESCRIPTION |
+ * +----------+--------------+-------------------------------------------+
+ * | 'P' 0x50 | Pipe | Consists from 5 LEDs, controlled by board |
+ * +----------+--------------+-------------------------------------------+
+ * | 'S' 0x53 | Screen frame | Light tube around the screen |
+ * +----------+--------------+-------------------------------------------+
+ * | 'V' 0x56 | Vending area | Highlights a cup of coffee |
+ * +----------+--------------+-------------------------------------------+
+ *
+ * COMMAND:
+ * +----------+-----------------+--------------+--------------+
+ * | VALUES | PIPE | SCREEN FRAME | VENDING AREA |
+ * +----------+-----------------+--------------+--------------+
+ * | '0' 0x30 | Off |
+ * +----------+-----------------------------------------------+
+ * | '1' 0x31 | On |
+ * +----------+-----------------+--------------+--------------+
+ * | '2' 0x32 | Cascade | Breathing |
+ * +----------+-----------------+--------------+
+ * | '3' 0x33 | Inverse cascade |
+ * +----------+-----------------+
+ * | '4' 0x34 | Bounce |
+ * +----------+-----------------+
+ * | '5' 0x35 | Inverse bounce |
+ * +----------+-----------------+
+ */
+
+/* EL15203000 default settings */
+#define EL_FW_DELAY_USEC 20000ul
+#define EL_PATTERN_DELAY_MSEC 800u
+#define EL_PATTERN_LEN 10u
+#define EL_PATTERN_HALF_LEN (EL_PATTERN_LEN / 2)
+
+enum el15203000_command {
+ /* for all LEDs */
+ EL_OFF = '0',
+ EL_ON = '1',
+
+ /* for Screen LED */
+ EL_SCREEN_BREATHING = '2',
+
+ /* for Pipe LED */
+ EL_PIPE_CASCADE = '2',
+ EL_PIPE_INV_CASCADE = '3',
+ EL_PIPE_BOUNCE = '4',
+ EL_PIPE_INV_BOUNCE = '5',
+};
+
+struct el15203000_led {
+ struct el15203000 *priv;
+ struct led_classdev ldev;
+ u32 reg;
+};
+
+struct el15203000 {
+ struct device *dev;
+ struct mutex lock;
+ struct spi_device *spi;
+ unsigned long delay;
+ size_t count;
+ struct el15203000_led leds[];
+};
+
+static int el15203000_cmd(struct el15203000_led *led, u8 brightness)
+{
+ int ret;
+ u8 cmd[2];
+ size_t i;
+
+ mutex_lock(&led->priv->lock);
+
+ dev_dbg(led->priv->dev, "Set brightness of 0x%02x(%c) to 0x%02x(%c)",
+ led->reg, led->reg, brightness, brightness);
+
+ /* to avoid SPI mistiming with firmware we should wait some time */
+ if (time_after(led->priv->delay, jiffies)) {
+ dev_dbg(led->priv->dev, "Wait %luus to sync",
+ EL_FW_DELAY_USEC);
+
+ usleep_range(EL_FW_DELAY_USEC,
+ EL_FW_DELAY_USEC + 1);
+ }
+
+ cmd[0] = led->reg;
+ cmd[1] = brightness;
+
+ for (i = 0; i < ARRAY_SIZE(cmd); i++) {
+ if (i)
+ usleep_range(EL_FW_DELAY_USEC,
+ EL_FW_DELAY_USEC + 1);
+
+ ret = spi_write(led->priv->spi, &cmd[i], sizeof(cmd[i]));
+ if (ret) {
+ dev_err(led->priv->dev,
+ "spi_write() error %d", ret);
+ break;
+ }
+ }
+
+ led->priv->delay = jiffies + usecs_to_jiffies(EL_FW_DELAY_USEC);
+
+ mutex_unlock(&led->priv->lock);
+
+ return ret;
+}
+
+static int el15203000_set_blocking(struct led_classdev *ldev,
+ enum led_brightness brightness)
+{
+ struct el15203000_led *led = container_of(ldev,
+ struct el15203000_led,
+ ldev);
+
+ return el15203000_cmd(led, brightness == LED_OFF ? EL_OFF : EL_ON);
+}
+
+static int el15203000_pattern_set_S(struct led_classdev *ldev,
+ struct led_pattern *pattern,
+ u32 len, int repeat)
+{
+ struct el15203000_led *led = container_of(ldev,
+ struct el15203000_led,
+ ldev);
+
+ if (repeat > 0 || len != 2 ||
+ pattern[0].delta_t != 4000 || pattern[0].brightness != 0 ||
+ pattern[1].delta_t != 4000 || pattern[1].brightness != 1)
+ return -EINVAL;
+
+ dev_dbg(led->priv->dev, "Breathing mode for 0x%02x(%c)",
+ led->reg, led->reg);
+
+ return el15203000_cmd(led, EL_SCREEN_BREATHING);
+}
+
+static bool is_cascade(const struct led_pattern *pattern, u32 len,
+ bool inv, bool right)
+{
+ int val, t;
+ u32 i;
+
+ if (len != EL_PATTERN_HALF_LEN)
+ return false;
+
+ val = right ? BIT(4) : BIT(0);
+
+ for (i = 0; i < len; i++) {
+ t = inv ? ~val & GENMASK(4, 0) : val;
+
+ if (pattern[i].delta_t != EL_PATTERN_DELAY_MSEC ||
+ pattern[i].brightness != t)
+ return false;
+
+ val = right ? val >> 1 : val << 1;
+ }
+
+ return true;
+}
+
+static bool is_bounce(const struct led_pattern *pattern, u32 len, bool inv)
+{
+ if (len != EL_PATTERN_LEN)
+ return false;
+
+ return is_cascade(pattern, EL_PATTERN_HALF_LEN, inv, false) &&
+ is_cascade(pattern + EL_PATTERN_HALF_LEN,
+ EL_PATTERN_HALF_LEN, inv, true);
+}
+
+static int el15203000_pattern_set_P(struct led_classdev *ldev,
+ struct led_pattern *pattern,
+ u32 len, int repeat)
+{
+ u8 cmd;
+ struct el15203000_led *led = container_of(ldev,
+ struct el15203000_led,
+ ldev);
+
+ if (repeat > 0)
+ return -EINVAL;
+
+ if (is_cascade(pattern, len, false, false)) {
+ dev_dbg(led->priv->dev, "Cascade mode for 0x%02x(%c)",
+ led->reg, led->reg);
+
+ cmd = EL_PIPE_CASCADE;
+ } else if (is_cascade(pattern, len, true, false)) {
+ dev_dbg(led->priv->dev, "Inverse cascade mode for 0x%02x(%c)",
+ led->reg, led->reg);
+
+ cmd = EL_PIPE_INV_CASCADE;
+ } else if (is_bounce(pattern, len, false)) {
+ dev_dbg(led->priv->dev, "Bounce mode for 0x%02x(%c)",
+ led->reg, led->reg);
+
+ cmd = EL_PIPE_BOUNCE;
+ } else if (is_bounce(pattern, len, true)) {
+ dev_dbg(led->priv->dev, "Inverse bounce mode for 0x%02x(%c)",
+ led->reg, led->reg);
+
+ cmd = EL_PIPE_INV_BOUNCE;
+ } else {
+ dev_err(led->priv->dev, "Invalid hw_pattern for 0x%02x(%c)!",
+ led->reg, led->reg);
+
+ return -EINVAL;
+ }
+
+ return el15203000_cmd(led, cmd);
+}
+
+static int el15203000_pattern_clear(struct led_classdev *ldev)
+{
+ struct el15203000_led *led = container_of(ldev,
+ struct el15203000_led,
+ ldev);
+
+ return el15203000_cmd(led, EL_OFF);
+}
+
+static int el15203000_probe_dt(struct el15203000 *priv)
+{
+ struct el15203000_led *led = priv->leds;
+ struct fwnode_handle *child;
+ int ret;
+
+ device_for_each_child_node(priv->dev, child) {
+ struct led_init_data init_data = {};
+
+ ret = fwnode_property_read_u32(child, "reg", &led->reg);
+ if (ret) {
+ dev_err(priv->dev, "LED without ID number");
+ fwnode_handle_put(child);
+
+ break;
+ }
+
+ if (led->reg > U8_MAX) {
+ dev_err(priv->dev, "LED value %d is invalid", led->reg);
+ fwnode_handle_put(child);
+
+ return -EINVAL;
+ }
+
+ fwnode_property_read_string(child, "linux,default-trigger",
+ &led->ldev.default_trigger);
+
+ led->priv = priv;
+ led->ldev.max_brightness = LED_ON;
+ led->ldev.brightness_set_blocking = el15203000_set_blocking;
+
+ if (led->reg == 'S') {
+ led->ldev.pattern_set = el15203000_pattern_set_S;
+ led->ldev.pattern_clear = el15203000_pattern_clear;
+ } else if (led->reg == 'P') {
+ led->ldev.pattern_set = el15203000_pattern_set_P;
+ led->ldev.pattern_clear = el15203000_pattern_clear;
+ }
+
+ init_data.fwnode = child;
+ ret = devm_led_classdev_register_ext(priv->dev, &led->ldev,
+ &init_data);
+ if (ret) {
+ dev_err(priv->dev,
+ "failed to register LED device %s, err %d",
+ led->ldev.name, ret);
+ fwnode_handle_put(child);
+
+ break;
+ }
+
+ led++;
+ }
+
+ return ret;
+}
+
+static int el15203000_probe(struct spi_device *spi)
+{
+ struct el15203000 *priv;
+ size_t count;
+
+ count = device_get_child_node_count(&spi->dev);
+ if (!count) {
+ dev_err(&spi->dev, "LEDs are not defined in device tree!");
+ return -ENODEV;
+ }
+
+ priv = devm_kzalloc(&spi->dev, struct_size(priv, leds, count),
+ GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ mutex_init(&priv->lock);
+ priv->count = count;
+ priv->dev = &spi->dev;
+ priv->spi = spi;
+ priv->delay = jiffies -
+ usecs_to_jiffies(EL_FW_DELAY_USEC);
+
+ spi_set_drvdata(spi, priv);
+
+ return el15203000_probe_dt(priv);
+}
+
+static int el15203000_remove(struct spi_device *spi)
+{
+ struct el15203000 *priv = spi_get_drvdata(spi);
+
+ mutex_destroy(&priv->lock);
+
+ return 0;
+}
+
+static const struct of_device_id el15203000_dt_ids[] = {
+ { .compatible = "crane,el15203000", },
+ {},
+};
+
+MODULE_DEVICE_TABLE(of, el15203000_dt_ids);
+
+static struct spi_driver el15203000_driver = {
+ .probe = el15203000_probe,
+ .remove = el15203000_remove,
+ .driver = {
+ .name = KBUILD_MODNAME,
+ .of_match_table = el15203000_dt_ids,
+ },
+};
+
+module_spi_driver(el15203000_driver);
+
+MODULE_AUTHOR("Oleh Kravchenko <oleg@kaa.org.ua>");
+MODULE_DESCRIPTION("el15203000 LED driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:el15203000");
diff --git a/drivers/leds/leds-lm3601x.c b/drivers/leds/leds-lm3601x.c
index b02972f1a341..fce89f2a2d92 100644
--- a/drivers/leds/leds-lm3601x.c
+++ b/drivers/leds/leds-lm3601x.c
@@ -350,8 +350,7 @@ static int lm3601x_register_leds(struct lm3601x_led *led,
init_data.devicename = led->client->name;
init_data.default_label = (led->led_mode == LM3601X_LED_TORCH) ?
"torch" : "infrared";
-
- return led_classdev_flash_register_ext(&led->client->dev,
+ return devm_led_classdev_flash_register_ext(&led->client->dev,
&led->fled_cdev, &init_data);
}
@@ -445,7 +444,6 @@ static int lm3601x_remove(struct i2c_client *client)
{
struct lm3601x_led *led = i2c_get_clientdata(client);
- led_classdev_flash_unregister(&led->fled_cdev);
mutex_destroy(&led->lock);
return regmap_update_bits(led->regmap, LM3601X_ENABLE_REG,
diff --git a/drivers/leds/leds-lm3692x.c b/drivers/leds/leds-lm3692x.c
index 3d381f2f73d0..8b408102e138 100644
--- a/drivers/leds/leds-lm3692x.c
+++ b/drivers/leds/leds-lm3692x.c
@@ -174,19 +174,20 @@ static int lm3692x_brightness_set(struct led_classdev *led_cdev,
ret = lm3692x_fault_check(led);
if (ret) {
- dev_err(&led->client->dev, "Cannot read/clear faults\n");
+ dev_err(&led->client->dev, "Cannot read/clear faults: %d\n",
+ ret);
goto out;
}
ret = regmap_write(led->regmap, LM3692X_BRT_MSB, brt_val);
if (ret) {
- dev_err(&led->client->dev, "Cannot write MSB\n");
+ dev_err(&led->client->dev, "Cannot write MSB: %d\n", ret);
goto out;
}
ret = regmap_write(led->regmap, LM3692X_BRT_LSB, led_brightness_lsb);
if (ret) {
- dev_err(&led->client->dev, "Cannot write LSB\n");
+ dev_err(&led->client->dev, "Cannot write LSB: %d\n", ret);
goto out;
}
out:
@@ -197,13 +198,13 @@ out:
static int lm3692x_init(struct lm3692x_led *led)
{
int enable_state;
- int ret;
+ int ret, reg_ret;
if (led->regulator) {
ret = regulator_enable(led->regulator);
if (ret) {
dev_err(&led->client->dev,
- "Failed to enable regulator\n");
+ "Failed to enable regulator: %d\n", ret);
return ret;
}
}
@@ -213,7 +214,8 @@ static int lm3692x_init(struct lm3692x_led *led)
ret = lm3692x_fault_check(led);
if (ret) {
- dev_err(&led->client->dev, "Cannot read/clear faults\n");
+ dev_err(&led->client->dev, "Cannot read/clear faults: %d\n",
+ ret);
goto out;
}
@@ -248,9 +250,9 @@ static int lm3692x_init(struct lm3692x_led *led)
goto out;
ret = regmap_write(led->regmap, LM3692X_BOOST_CTRL,
- LM3692X_BRHT_MODE_RAMP_MULTI |
- LM3692X_BL_ADJ_POL |
- LM3692X_RAMP_RATE_250us);
+ LM3692X_BOOST_SW_1MHZ |
+ LM3692X_BOOST_SW_NO_SHIFT |
+ LM3692X_OCP_PROT_1_5A);
if (ret)
goto out;
@@ -267,7 +269,7 @@ static int lm3692x_init(struct lm3692x_led *led)
goto out;
ret = regmap_write(led->regmap, LM3692X_BRT_CTRL,
- LM3692X_BL_ADJ_POL | LM3692X_PWM_HYSTER_4LSB);
+ LM3692X_BL_ADJ_POL | LM3692X_RAMP_EN);
if (ret)
goto out;
@@ -311,14 +313,15 @@ out:
gpiod_direction_output(led->enable_gpio, 0);
if (led->regulator) {
- ret = regulator_disable(led->regulator);
- if (ret)
+ reg_ret = regulator_disable(led->regulator);
+ if (reg_ret)
dev_err(&led->client->dev,
- "Failed to disable regulator\n");
+ "Failed to disable regulator: %d\n", reg_ret);
}
return ret;
}
+
static int lm3692x_probe_dt(struct lm3692x_led *led)
{
struct fwnode_handle *child = NULL;
@@ -334,9 +337,18 @@ static int lm3692x_probe_dt(struct lm3692x_led *led)
return ret;
}
- led->regulator = devm_regulator_get(&led->client->dev, "vled");
- if (IS_ERR(led->regulator))
+ led->regulator = devm_regulator_get_optional(&led->client->dev, "vled");
+ if (IS_ERR(led->regulator)) {
+ ret = PTR_ERR(led->regulator);
+ if (ret != -ENODEV) {
+ if (ret != -EPROBE_DEFER)
+ dev_err(&led->client->dev,
+ "Failed to get vled regulator: %d\n",
+ ret);
+ return ret;
+ }
led->regulator = NULL;
+ }
child = device_get_next_child_node(&led->client->dev, child);
if (!child) {
@@ -409,7 +421,8 @@ static int lm3692x_remove(struct i2c_client *client)
ret = regmap_update_bits(led->regmap, LM3692X_EN, LM3692X_DEVICE_EN, 0);
if (ret) {
- dev_err(&led->client->dev, "Failed to disable regulator\n");
+ dev_err(&led->client->dev, "Failed to disable regulator: %d\n",
+ ret);
return ret;
}
@@ -420,7 +433,7 @@ static int lm3692x_remove(struct i2c_client *client)
ret = regulator_disable(led->regulator);
if (ret)
dev_err(&led->client->dev,
- "Failed to disable regulator\n");
+ "Failed to disable regulator: %d\n", ret);
}
mutex_destroy(&led->lock);
diff --git a/drivers/leds/leds-mlxreg.c b/drivers/leds/leds-mlxreg.c
index cabe379071a7..82aea1cd0c12 100644
--- a/drivers/leds/leds-mlxreg.c
+++ b/drivers/leds/leds-mlxreg.c
@@ -228,8 +228,8 @@ static int mlxreg_led_config(struct mlxreg_led_priv_data *priv)
brightness = LED_OFF;
led_data->base_color = MLXREG_LED_GREEN_SOLID;
}
- sprintf(led_data->led_cdev_name, "%s:%s", "mlxreg",
- data->label);
+ snprintf(led_data->led_cdev_name, sizeof(led_data->led_cdev_name),
+ "mlxreg:%s", data->label);
led_cdev->name = led_data->led_cdev_name;
led_cdev->brightness = brightness;
led_cdev->max_brightness = LED_ON;
diff --git a/drivers/leds/leds-pca9532.c b/drivers/leds/leds-pca9532.c
index c7c7199e8ebd..7d515d5e57bd 100644
--- a/drivers/leds/leds-pca9532.c
+++ b/drivers/leds/leds-pca9532.c
@@ -467,16 +467,11 @@ pca9532_of_populate_pdata(struct device *dev, struct device_node *np)
{
struct pca9532_platform_data *pdata;
struct device_node *child;
- const struct of_device_id *match;
int devid, maxleds;
int i = 0;
const char *state;
- match = of_match_device(of_pca9532_leds_match, dev);
- if (!match)
- return ERR_PTR(-ENODEV);
-
- devid = (int)(uintptr_t)match->data;
+ devid = (int)(uintptr_t)of_device_get_match_data(dev);
maxleds = pca9532_chip_info_tbl[devid].num_leds;
pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
@@ -509,7 +504,6 @@ static int pca9532_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
int devid;
- const struct of_device_id *of_id;
struct pca9532_data *data = i2c_get_clientdata(client);
struct pca9532_platform_data *pca9532_pdata =
dev_get_platdata(&client->dev);
@@ -525,11 +519,7 @@ static int pca9532_probe(struct i2c_client *client,
dev_err(&client->dev, "no platform data\n");
return -EINVAL;
}
- of_id = of_match_device(of_pca9532_leds_match,
- &client->dev);
- if (unlikely(!of_id))
- return -EINVAL;
- devid = (int)(uintptr_t) of_id->data;
+ devid = (int)(uintptr_t)of_device_get_match_data(&client->dev);
} else {
devid = id->driver_data;
}
diff --git a/drivers/leds/leds-tlc591xx.c b/drivers/leds/leds-tlc591xx.c
index 59ff088c7d75..a8911ebd30e5 100644
--- a/drivers/leds/leds-tlc591xx.c
+++ b/drivers/leds/leds-tlc591xx.c
@@ -13,6 +13,7 @@
#include <linux/slab.h>
#define TLC591XX_MAX_LEDS 16
+#define TLC591XX_MAX_BRIGHTNESS 256
#define TLC591XX_REG_MODE1 0x00
#define MODE1_RESPON_ADDR_MASK 0xF0
@@ -112,11 +113,11 @@ tlc591xx_brightness_set(struct led_classdev *led_cdev,
struct tlc591xx_priv *priv = led->priv;
int err;
- switch (brightness) {
+ switch ((int)brightness) {
case 0:
err = tlc591xx_set_ledout(priv, led, LEDOUT_OFF);
break;
- case LED_FULL:
+ case TLC591XX_MAX_BRIGHTNESS:
err = tlc591xx_set_ledout(priv, led, LEDOUT_ON);
break;
default:
@@ -128,51 +129,6 @@ tlc591xx_brightness_set(struct led_classdev *led_cdev,
return err;
}
-static void
-tlc591xx_destroy_devices(struct tlc591xx_priv *priv, unsigned int j)
-{
- int i = j;
-
- while (--i >= 0) {
- if (priv->leds[i].active)
- led_classdev_unregister(&priv->leds[i].ldev);
- }
-}
-
-static int
-tlc591xx_configure(struct device *dev,
- struct tlc591xx_priv *priv,
- const struct tlc591xx *tlc591xx)
-{
- unsigned int i;
- int err = 0;
-
- tlc591xx_set_mode(priv->regmap, MODE2_DIM);
- for (i = 0; i < TLC591XX_MAX_LEDS; i++) {
- struct tlc591xx_led *led = &priv->leds[i];
-
- if (!led->active)
- continue;
-
- led->priv = priv;
- led->led_no = i;
- led->ldev.brightness_set_blocking = tlc591xx_brightness_set;
- led->ldev.max_brightness = LED_FULL;
- err = led_classdev_register(dev, &led->ldev);
- if (err < 0) {
- dev_err(dev, "couldn't register LED %s\n",
- led->ldev.name);
- goto exit;
- }
- }
-
- return 0;
-
-exit:
- tlc591xx_destroy_devices(priv, i);
- return err;
-}
-
static const struct regmap_config tlc591xx_regmap = {
.reg_bits = 8,
.val_bits = 8,
@@ -225,7 +181,16 @@ tlc591xx_probe(struct i2c_client *client,
i2c_set_clientdata(client, priv);
+ err = tlc591xx_set_mode(priv->regmap, MODE2_DIM);
+ if (err < 0)
+ return err;
+
for_each_child_of_node(np, child) {
+ struct tlc591xx_led *led;
+ struct led_init_data init_data = {};
+
+ init_data.fwnode = of_fwnode_handle(child);
+
err = of_property_read_u32(child, "reg", &reg);
if (err) {
of_node_put(child);
@@ -236,22 +201,24 @@ tlc591xx_probe(struct i2c_client *client,
of_node_put(child);
return -EINVAL;
}
- priv->leds[reg].active = true;
- priv->leds[reg].ldev.name =
- of_get_property(child, "label", NULL) ? : child->name;
- priv->leds[reg].ldev.default_trigger =
- of_get_property(child, "linux,default-trigger", NULL);
- }
- return tlc591xx_configure(dev, priv, tlc591xx);
-}
+ led = &priv->leds[reg];
-static int
-tlc591xx_remove(struct i2c_client *client)
-{
- struct tlc591xx_priv *priv = i2c_get_clientdata(client);
-
- tlc591xx_destroy_devices(priv, TLC591XX_MAX_LEDS);
+ led->active = true;
+ led->ldev.default_trigger =
+ of_get_property(child, "linux,default-trigger", NULL);
+ led->priv = priv;
+ led->led_no = reg;
+ led->ldev.brightness_set_blocking = tlc591xx_brightness_set;
+ led->ldev.max_brightness = TLC591XX_MAX_BRIGHTNESS;
+ err = devm_led_classdev_register_ext(dev, &led->ldev,
+ &init_data);
+ if (err < 0) {
+ dev_err(dev, "couldn't register LED %s\n",
+ led->ldev.name);
+ return err;
+ }
+ }
return 0;
}
@@ -268,7 +235,6 @@ static struct i2c_driver tlc591xx_driver = {
.of_match_table = of_match_ptr(of_tlc591xx_leds_match),
},
.probe = tlc591xx_probe,
- .remove = tlc591xx_remove,
.id_table = tlc591xx_id,
};
diff --git a/drivers/leds/leds.h b/drivers/leds/leds.h
index 0b577cece8f7..2d9eb48bbed9 100644
--- a/drivers/leds/leds.h
+++ b/drivers/leds/leds.h
@@ -23,6 +23,12 @@ void led_set_brightness_nopm(struct led_classdev *led_cdev,
enum led_brightness value);
void led_set_brightness_nosleep(struct led_classdev *led_cdev,
enum led_brightness value);
+ssize_t led_trigger_read(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *attr, char *buf,
+ loff_t pos, size_t count);
+ssize_t led_trigger_write(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *bin_attr, char *buf,
+ loff_t pos, size_t count);
extern struct rw_semaphore leds_list_lock;
extern struct list_head leds_list;
diff --git a/drivers/leds/trigger/ledtrig-netdev.c b/drivers/leds/trigger/ledtrig-netdev.c
index 136f86a1627d..d5e774d83021 100644
--- a/drivers/leds/trigger/ledtrig-netdev.c
+++ b/drivers/leds/trigger/ledtrig-netdev.c
@@ -302,10 +302,12 @@ static int netdev_trig_notify(struct notifier_block *nb,
container_of(nb, struct led_netdev_data, notifier);
if (evt != NETDEV_UP && evt != NETDEV_DOWN && evt != NETDEV_CHANGE
- && evt != NETDEV_REGISTER && evt != NETDEV_UNREGISTER)
+ && evt != NETDEV_REGISTER && evt != NETDEV_UNREGISTER
+ && evt != NETDEV_CHANGENAME)
return NOTIFY_DONE;
if (!(dev == trigger_data->net_dev ||
+ (evt == NETDEV_CHANGENAME && !strcmp(dev->name, trigger_data->device_name)) ||
(evt == NETDEV_REGISTER && !strcmp(dev->name, trigger_data->device_name))))
return NOTIFY_DONE;
@@ -315,6 +317,7 @@ static int netdev_trig_notify(struct notifier_block *nb,
clear_bit(NETDEV_LED_MODE_LINKUP, &trigger_data->mode);
switch (evt) {
+ case NETDEV_CHANGENAME:
case NETDEV_REGISTER:
if (trigger_data->net_dev)
dev_put(trigger_data->net_dev);
diff --git a/include/linux/led-class-flash.h b/include/linux/led-class-flash.h
index 1e824963af17..21a3358a1731 100644
--- a/include/linux/led-class-flash.h
+++ b/include/linux/led-class-flash.h
@@ -94,12 +94,15 @@ static inline struct led_classdev_flash *lcdev_to_flcdev(
*
* Returns: 0 on success or negative error value on failure
*/
-extern int led_classdev_flash_register_ext(struct device *parent,
- struct led_classdev_flash *fled_cdev,
- struct led_init_data *init_data);
+int led_classdev_flash_register_ext(struct device *parent,
+ struct led_classdev_flash *fled_cdev,
+ struct led_init_data *init_data);
-#define led_classdev_flash_register(parent, fled_cdev) \
- led_classdev_flash_register_ext(parent, fled_cdev, NULL)
+static inline int led_classdev_flash_register(struct device *parent,
+ struct led_classdev_flash *fled_cdev)
+{
+ return led_classdev_flash_register_ext(parent, fled_cdev, NULL);
+}
/**
* led_classdev_flash_unregister - unregisters an object of led_classdev class
@@ -108,7 +111,21 @@ extern int led_classdev_flash_register_ext(struct device *parent,
*
* Unregister a previously registered via led_classdev_flash_register object
*/
-extern void led_classdev_flash_unregister(struct led_classdev_flash *fled_cdev);
+void led_classdev_flash_unregister(struct led_classdev_flash *fled_cdev);
+
+int devm_led_classdev_flash_register_ext(struct device *parent,
+ struct led_classdev_flash *fled_cdev,
+ struct led_init_data *init_data);
+
+
+static inline int devm_led_classdev_flash_register(struct device *parent,
+ struct led_classdev_flash *fled_cdev)
+{
+ return devm_led_classdev_flash_register_ext(parent, fled_cdev, NULL);
+}
+
+void devm_led_classdev_flash_unregister(struct device *parent,
+ struct led_classdev_flash *fled_cdev);
/**
* led_set_flash_strobe - setup flash strobe
@@ -156,8 +173,8 @@ static inline int led_get_flash_strobe(struct led_classdev_flash *fled_cdev,
*
* Returns: 0 on success or negative error value on failure
*/
-extern int led_set_flash_brightness(struct led_classdev_flash *fled_cdev,
- u32 brightness);
+int led_set_flash_brightness(struct led_classdev_flash *fled_cdev,
+ u32 brightness);
/**
* led_update_flash_brightness - update flash LED brightness
@@ -168,7 +185,7 @@ extern int led_set_flash_brightness(struct led_classdev_flash *fled_cdev,
*
* Returns: 0 on success or negative error value on failure
*/
-extern int led_update_flash_brightness(struct led_classdev_flash *fled_cdev);
+int led_update_flash_brightness(struct led_classdev_flash *fled_cdev);
/**
* led_set_flash_timeout - set flash LED timeout
@@ -179,8 +196,7 @@ extern int led_update_flash_brightness(struct led_classdev_flash *fled_cdev);
*
* Returns: 0 on success or negative error value on failure
*/
-extern int led_set_flash_timeout(struct led_classdev_flash *fled_cdev,
- u32 timeout);
+int led_set_flash_timeout(struct led_classdev_flash *fled_cdev, u32 timeout);
/**
* led_get_flash_fault - get the flash LED fault
@@ -191,7 +207,6 @@ extern int led_set_flash_timeout(struct led_classdev_flash *fled_cdev,
*
* Returns: 0 on success or negative error value on failure
*/
-extern int led_get_flash_fault(struct led_classdev_flash *fled_cdev,
- u32 *fault);
+int led_get_flash_fault(struct led_classdev_flash *fled_cdev, u32 *fault);
#endif /* __LINUX_FLASH_LEDS_H_INCLUDED */
diff --git a/include/linux/leds.h b/include/linux/leds.h
index efb309dba914..242258f7d837 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -161,7 +161,7 @@ struct led_classdev {
*
* Returns: 0 on success or negative error value on failure
*/
-extern int led_classdev_register_ext(struct device *parent,
+int led_classdev_register_ext(struct device *parent,
struct led_classdev *led_cdev,
struct led_init_data *init_data);
@@ -181,7 +181,7 @@ static inline int led_classdev_register(struct device *parent,
return led_classdev_register_ext(parent, led_cdev, NULL);
}
-extern int devm_led_classdev_register_ext(struct device *parent,
+int devm_led_classdev_register_ext(struct device *parent,
struct led_classdev *led_cdev,
struct led_init_data *init_data);
@@ -190,11 +190,11 @@ static inline int devm_led_classdev_register(struct device *parent,
{
return devm_led_classdev_register_ext(parent, led_cdev, NULL);
}
-extern void led_classdev_unregister(struct led_classdev *led_cdev);
-extern void devm_led_classdev_unregister(struct device *parent,
- struct led_classdev *led_cdev);
-extern void led_classdev_suspend(struct led_classdev *led_cdev);
-extern void led_classdev_resume(struct led_classdev *led_cdev);
+void led_classdev_unregister(struct led_classdev *led_cdev);
+void devm_led_classdev_unregister(struct device *parent,
+ struct led_classdev *led_cdev);
+void led_classdev_suspend(struct led_classdev *led_cdev);
+void led_classdev_resume(struct led_classdev *led_cdev);
/**
* led_blink_set - set blinking with software fallback
@@ -211,9 +211,8 @@ extern void led_classdev_resume(struct led_classdev *led_cdev);
* led_cdev->brightness_set() will not stop the blinking,
* use led_classdev_brightness_set() instead.
*/
-extern void led_blink_set(struct led_classdev *led_cdev,
- unsigned long *delay_on,
- unsigned long *delay_off);
+void led_blink_set(struct led_classdev *led_cdev, unsigned long *delay_on,
+ unsigned long *delay_off);
/**
* led_blink_set_oneshot - do a oneshot software blink
* @led_cdev: the LED to start blinking
@@ -228,10 +227,9 @@ extern void led_blink_set(struct led_classdev *led_cdev,
* If invert is set, led blinks for delay_off first, then for
* delay_on and leave the led on after the on-off cycle.
*/
-extern void led_blink_set_oneshot(struct led_classdev *led_cdev,
- unsigned long *delay_on,
- unsigned long *delay_off,
- int invert);
+void led_blink_set_oneshot(struct led_classdev *led_cdev,
+ unsigned long *delay_on, unsigned long *delay_off,
+ int invert);
/**
* led_set_brightness - set LED brightness
* @led_cdev: the LED to set
@@ -241,8 +239,8 @@ extern void led_blink_set_oneshot(struct led_classdev *led_cdev,
* software blink timer that implements blinking when the
* hardware doesn't. This function is guaranteed not to sleep.
*/
-extern void led_set_brightness(struct led_classdev *led_cdev,
- enum led_brightness brightness);
+void led_set_brightness(struct led_classdev *led_cdev,
+ enum led_brightness brightness);
/**
* led_set_brightness_sync - set LED brightness synchronously
@@ -255,8 +253,8 @@ extern void led_set_brightness(struct led_classdev *led_cdev,
*
* Returns: 0 on success or negative error value on failure
*/
-extern int led_set_brightness_sync(struct led_classdev *led_cdev,
- enum led_brightness value);
+int led_set_brightness_sync(struct led_classdev *led_cdev,
+ enum led_brightness value);
/**
* led_update_brightness - update LED brightness
@@ -267,7 +265,7 @@ extern int led_set_brightness_sync(struct led_classdev *led_cdev,
*
* Returns: 0 on success or negative error value on failure
*/
-extern int led_update_brightness(struct led_classdev *led_cdev);
+int led_update_brightness(struct led_classdev *led_cdev);
/**
* led_get_default_pattern - return default pattern
@@ -279,8 +277,7 @@ extern int led_update_brightness(struct led_classdev *led_cdev);
* Return: Allocated array of integers with default pattern from device tree
* or NULL. Caller is responsible for kfree().
*/
-extern u32 *led_get_default_pattern(struct led_classdev *led_cdev,
- unsigned int *size);
+u32 *led_get_default_pattern(struct led_classdev *led_cdev, unsigned int *size);
/**
* led_sysfs_disable - disable LED sysfs interface
@@ -288,7 +285,7 @@ extern u32 *led_get_default_pattern(struct led_classdev *led_cdev,
*
* Disable the led_cdev's sysfs interface.
*/
-extern void led_sysfs_disable(struct led_classdev *led_cdev);
+void led_sysfs_disable(struct led_classdev *led_cdev);
/**
* led_sysfs_enable - enable LED sysfs interface
@@ -296,7 +293,7 @@ extern void led_sysfs_disable(struct led_classdev *led_cdev);
*
* Enable the led_cdev's sysfs interface.
*/
-extern void led_sysfs_enable(struct led_classdev *led_cdev);
+void led_sysfs_enable(struct led_classdev *led_cdev);
/**
* led_compose_name - compose LED class device name
@@ -310,8 +307,8 @@ extern void led_sysfs_enable(struct led_classdev *led_cdev);
*
* Returns: 0 on success or negative error value on failure
*/
-extern int led_compose_name(struct device *dev, struct led_init_data *init_data,
- char *led_classdev_name);
+int led_compose_name(struct device *dev, struct led_init_data *init_data,
+ char *led_classdev_name);
/**
* led_sysfs_is_disabled - check if LED sysfs interface is disabled
@@ -360,33 +357,25 @@ struct led_trigger {
#define led_trigger_get_led(dev) ((struct led_classdev *)dev_get_drvdata((dev)))
#define led_trigger_get_drvdata(dev) (led_get_trigger_data(led_trigger_get_led(dev)))
-ssize_t led_trigger_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count);
-ssize_t led_trigger_show(struct device *dev, struct device_attribute *attr,
- char *buf);
-
/* Registration functions for complex triggers */
-extern int led_trigger_register(struct led_trigger *trigger);
-extern void led_trigger_unregister(struct led_trigger *trigger);
-extern int devm_led_trigger_register(struct device *dev,
+int led_trigger_register(struct led_trigger *trigger);
+void led_trigger_unregister(struct led_trigger *trigger);
+int devm_led_trigger_register(struct device *dev,
struct led_trigger *trigger);
-extern void led_trigger_register_simple(const char *name,
+void led_trigger_register_simple(const char *name,
struct led_trigger **trigger);
-extern void led_trigger_unregister_simple(struct led_trigger *trigger);
-extern void led_trigger_event(struct led_trigger *trigger,
- enum led_brightness event);
-extern void led_trigger_blink(struct led_trigger *trigger,
- unsigned long *delay_on,
- unsigned long *delay_off);
-extern void led_trigger_blink_oneshot(struct led_trigger *trigger,
- unsigned long *delay_on,
- unsigned long *delay_off,
- int invert);
-extern void led_trigger_set_default(struct led_classdev *led_cdev);
-extern int led_trigger_set(struct led_classdev *led_cdev,
- struct led_trigger *trigger);
-extern void led_trigger_remove(struct led_classdev *led_cdev);
+void led_trigger_unregister_simple(struct led_trigger *trigger);
+void led_trigger_event(struct led_trigger *trigger, enum led_brightness event);
+void led_trigger_blink(struct led_trigger *trigger, unsigned long *delay_on,
+ unsigned long *delay_off);
+void led_trigger_blink_oneshot(struct led_trigger *trigger,
+ unsigned long *delay_on,
+ unsigned long *delay_off,
+ int invert);
+void led_trigger_set_default(struct led_classdev *led_cdev);
+int led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trigger);
+void led_trigger_remove(struct led_classdev *led_cdev);
static inline void led_set_trigger_data(struct led_classdev *led_cdev,
void *trigger_data)
@@ -414,8 +403,7 @@ static inline void *led_get_trigger_data(struct led_classdev *led_cdev)
* This is meant to be used on triggers with statically
* allocated name.
*/
-extern void led_trigger_rename_static(const char *name,
- struct led_trigger *trig);
+void led_trigger_rename_static(const char *name, struct led_trigger *trig);
#define module_led_trigger(__led_trigger) \
module_driver(__led_trigger, led_trigger_register, \
@@ -457,20 +445,20 @@ static inline void *led_get_trigger_data(struct led_classdev *led_cdev)
/* Trigger specific functions */
#ifdef CONFIG_LEDS_TRIGGER_DISK
-extern void ledtrig_disk_activity(bool write);
+void ledtrig_disk_activity(bool write);
#else
static inline void ledtrig_disk_activity(bool write) {}
#endif
#ifdef CONFIG_LEDS_TRIGGER_MTD
-extern void ledtrig_mtd_activity(void);
+void ledtrig_mtd_activity(void);
#else
static inline void ledtrig_mtd_activity(void) {}
#endif
#if defined(CONFIG_LEDS_TRIGGER_CAMERA) || defined(CONFIG_LEDS_TRIGGER_CAMERA_MODULE)
-extern void ledtrig_flash_ctrl(bool on);
-extern void ledtrig_torch_ctrl(bool on);
+void ledtrig_flash_ctrl(bool on);
+void ledtrig_torch_ctrl(bool on);
#else
static inline void ledtrig_flash_ctrl(bool on) {}
static inline void ledtrig_torch_ctrl(bool on) {}
@@ -550,7 +538,7 @@ enum cpu_led_event {
CPU_LED_HALTED, /* Machine shutdown */
};
#ifdef CONFIG_LEDS_TRIGGER_CPU
-extern void ledtrig_cpu(enum cpu_led_event evt);
+void ledtrig_cpu(enum cpu_led_event evt);
#else
static inline void ledtrig_cpu(enum cpu_led_event evt)
{
@@ -559,7 +547,7 @@ static inline void ledtrig_cpu(enum cpu_led_event evt)
#endif
#ifdef CONFIG_LEDS_BRIGHTNESS_HW_CHANGED
-extern void led_classdev_notify_brightness_hw_changed(
+void led_classdev_notify_brightness_hw_changed(
struct led_classdev *led_cdev, enum led_brightness brightness);
#else
static inline void led_classdev_notify_brightness_hw_changed(
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.