[OpenWrt-Devel] [PATCH 1/3] brcm63xx: add upstream LED drivers
Álvaro Fernández Rojas
noltari at gmail.com
Sat Sep 5 08:58:36 EDT 2015
This backports upstream LED drivers (BCM6328 and BCM6358).
Signed-off-by: Álvaro Fernández Rojas <noltari at gmail.com>
---
target/linux/brcm63xx/config-3.18 | 2 +
target/linux/brcm63xx/config-4.1 | 2 +
.../040-leds-add-BCM6328-LED-driver.patch | 464 +++++++++++++++++++++
.../041-leds-add-BCM6358-LED-driver.patch | 293 +++++++++++++
...8-add-more-configuration-options-and-fix-.patch | 106 +++++
.../020-leds-add-BCM6328-LED-driver.patch | 464 +++++++++++++++++++++
.../021-leds-add-BCM6358-LED-driver.patch | 293 +++++++++++++
...8-add-more-configuration-options-and-fix-.patch | 106 +++++
8 files changed, 1730 insertions(+)
create mode 100644 target/linux/brcm63xx/patches-3.18/040-leds-add-BCM6328-LED-driver.patch
create mode 100644 target/linux/brcm63xx/patches-3.18/041-leds-add-BCM6358-LED-driver.patch
create mode 100644 target/linux/brcm63xx/patches-3.18/042-leds-bcm6328-add-more-configuration-options-and-fix-.patch
create mode 100644 target/linux/brcm63xx/patches-4.1/020-leds-add-BCM6328-LED-driver.patch
create mode 100644 target/linux/brcm63xx/patches-4.1/021-leds-add-BCM6358-LED-driver.patch
create mode 100644 target/linux/brcm63xx/patches-4.1/022-leds-bcm6328-add-more-configuration-options-and-fix-.patch
diff --git a/target/linux/brcm63xx/config-3.18 b/target/linux/brcm63xx/config-3.18
index b72080b..5a9029e 100644
--- a/target/linux/brcm63xx/config-3.18
+++ b/target/linux/brcm63xx/config-3.18
@@ -132,6 +132,8 @@ CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_IRQ_WORK=y
CONFIG_KEXEC=y
+CONFIG_LEDS_BCM6328=y
+CONFIG_LEDS_BCM6358=y
CONFIG_LEDS_GPIO=y
CONFIG_LIBFDT=y
CONFIG_MDIO_BOARDINFO=y
diff --git a/target/linux/brcm63xx/config-4.1 b/target/linux/brcm63xx/config-4.1
index d61b6e6..8da087c 100644
--- a/target/linux/brcm63xx/config-4.1
+++ b/target/linux/brcm63xx/config-4.1
@@ -137,6 +137,8 @@ CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_IRQ_WORK=y
CONFIG_KEXEC=y
+CONFIG_LEDS_BCM6328=y
+CONFIG_LEDS_BCM6358=y
CONFIG_LEDS_GPIO=y
CONFIG_LIBFDT=y
# CONFIG_LZ4_COMPRESS is not set
diff --git a/target/linux/brcm63xx/patches-3.18/040-leds-add-BCM6328-LED-driver.patch b/target/linux/brcm63xx/patches-3.18/040-leds-add-BCM6328-LED-driver.patch
new file mode 100644
index 0000000..fc3d03a
--- /dev/null
+++ b/target/linux/brcm63xx/patches-3.18/040-leds-add-BCM6328-LED-driver.patch
@@ -0,0 +1,464 @@
+From fd7b025a238d0a5440bfa26c585eb78097bf48dc Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari at gmail.com>
+Date: Tue, 28 Apr 2015 09:50:50 -0700
+Subject: [PATCH] leds: add BCM6328 LED driver
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This adds support for the LED controller on Broadcom's BCM6328.
+
+Signed-off-by: Álvaro Fernández Rojas <noltari at gmail.com>
+Signed-off-by: Jonas Gorski <jogo at openwrt.org>
+Acked-by: Jacek Anaszewski <j.anaszewski at samsung.com>
+Signed-off-by: Bryan Wu <cooloney at gmail.com>
+---
+ drivers/leds/Kconfig | 8 +
+ drivers/leds/Makefile | 1 +
+ drivers/leds/leds-bcm6328.c | 413 ++++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 422 insertions(+)
+ create mode 100644 drivers/leds/leds-bcm6328.c
+
+--- a/drivers/leds/Kconfig
++++ b/drivers/leds/Kconfig
+@@ -42,6 +42,14 @@ config LEDS_88PM860X
+ This option enables support for on-chip LED drivers found on Marvell
+ Semiconductor 88PM8606 PMIC.
+
++config LEDS_BCM6328
++ tristate "LED Support for Broadcom BCM6328"
++ depends on LEDS_CLASS
++ depends on OF
++ help
++ This option enables support for LEDs connected to the BCM6328
++ LED HW controller accessed via MMIO registers.
++
+ config LEDS_LM3530
+ tristate "LCD Backlight driver for LM3530"
+ depends on LEDS_CLASS
+--- a/drivers/leds/Makefile
++++ b/drivers/leds/Makefile
+@@ -7,6 +7,7 @@ obj-$(CONFIG_LEDS_TRIGGERS) += led-trig
+
+ # LED Platform Drivers
+ obj-$(CONFIG_LEDS_88PM860X) += leds-88pm860x.o
++obj-$(CONFIG_LEDS_BCM6328) += leds-bcm6328.o
+ obj-$(CONFIG_LEDS_BD2802) += leds-bd2802.o
+ obj-$(CONFIG_LEDS_LOCOMO) += leds-locomo.o
+ obj-$(CONFIG_LEDS_LM3530) += leds-lm3530.o
+--- /dev/null
++++ b/drivers/leds/leds-bcm6328.c
+@@ -0,0 +1,413 @@
++/*
++ * Driver for BCM6328 memory-mapped LEDs, based on leds-syscon.c
++ *
++ * Copyright 2015 Álvaro Fernández Rojas <noltari at gmail.com>
++ * Copyright 2015 Jonas Gorski <jogo at openwrt.org>
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License as published by the
++ * Free Software Foundation; either version 2 of the License, or (at your
++ * option) any later version.
++ */
++#include <linux/io.h>
++#include <linux/leds.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/platform_device.h>
++#include <linux/spinlock.h>
++
++#define BCM6328_REG_INIT 0x00
++#define BCM6328_REG_MODE_HI 0x04
++#define BCM6328_REG_MODE_LO 0x08
++#define BCM6328_REG_HWDIS 0x0c
++#define BCM6328_REG_STROBE 0x10
++#define BCM6328_REG_LNKACTSEL_HI 0x14
++#define BCM6328_REG_LNKACTSEL_LO 0x18
++#define BCM6328_REG_RBACK 0x1c
++#define BCM6328_REG_SERMUX 0x20
++
++#define BCM6328_LED_MAX_COUNT 24
++#define BCM6328_LED_DEF_DELAY 500
++#define BCM6328_LED_INTERVAL_MS 20
++
++#define BCM6328_LED_INTV_MASK 0x3f
++#define BCM6328_LED_FAST_INTV_SHIFT 6
++#define BCM6328_LED_FAST_INTV_MASK (BCM6328_LED_INTV_MASK << \
++ BCM6328_LED_FAST_INTV_SHIFT)
++#define BCM6328_SERIAL_LED_EN BIT(12)
++#define BCM6328_SERIAL_LED_MUX BIT(13)
++#define BCM6328_SERIAL_LED_CLK_NPOL BIT(14)
++#define BCM6328_SERIAL_LED_DATA_PPOL BIT(15)
++#define BCM6328_SERIAL_LED_SHIFT_DIR BIT(16)
++#define BCM6328_LED_SHIFT_TEST BIT(30)
++#define BCM6328_LED_TEST BIT(31)
++
++#define BCM6328_LED_MODE_MASK 3
++#define BCM6328_LED_MODE_OFF 0
++#define BCM6328_LED_MODE_FAST 1
++#define BCM6328_LED_MODE_BLINK 2
++#define BCM6328_LED_MODE_ON 3
++#define BCM6328_LED_SHIFT(X) ((X) << 1)
++
++/**
++ * struct bcm6328_led - state container for bcm6328 based LEDs
++ * @cdev: LED class device for this LED
++ * @mem: memory resource
++ * @lock: memory lock
++ * @pin: LED pin number
++ * @blink_leds: blinking LEDs
++ * @blink_delay: blinking delay
++ * @active_low: LED is active low
++ */
++struct bcm6328_led {
++ struct led_classdev cdev;
++ void __iomem *mem;
++ spinlock_t *lock;
++ unsigned long pin;
++ unsigned long *blink_leds;
++ unsigned long *blink_delay;
++ bool active_low;
++};
++
++static void bcm6328_led_write(void __iomem *reg, unsigned long data)
++{
++ iowrite32be(data, reg);
++}
++
++static unsigned long bcm6328_led_read(void __iomem *reg)
++{
++ return ioread32be(reg);
++}
++
++/**
++ * LEDMode 64 bits / 24 LEDs
++ * bits [31:0] -> LEDs 8-23
++ * bits [47:32] -> LEDs 0-7
++ * bits [63:48] -> unused
++ */
++static unsigned long bcm6328_pin2shift(unsigned long pin)
++{
++ if (pin < 8)
++ return pin + 16; /* LEDs 0-7 (bits 47:32) */
++ else
++ return pin - 8; /* LEDs 8-23 (bits 31:0) */
++}
++
++static void bcm6328_led_mode(struct bcm6328_led *led, unsigned long value)
++{
++ void __iomem *mode;
++ unsigned long val, shift;
++
++ shift = bcm6328_pin2shift(led->pin);
++ if (shift / 16)
++ mode = led->mem + BCM6328_REG_MODE_HI;
++ else
++ mode = led->mem + BCM6328_REG_MODE_LO;
++
++ val = bcm6328_led_read(mode);
++ val &= ~(BCM6328_LED_MODE_MASK << BCM6328_LED_SHIFT(shift % 16));
++ val |= (value << BCM6328_LED_SHIFT(shift % 16));
++ bcm6328_led_write(mode, val);
++}
++
++static void bcm6328_led_set(struct led_classdev *led_cdev,
++ enum led_brightness value)
++{
++ struct bcm6328_led *led =
++ container_of(led_cdev, struct bcm6328_led, cdev);
++ unsigned long flags;
++
++ spin_lock_irqsave(led->lock, flags);
++ *(led->blink_leds) &= ~BIT(led->pin);
++ if ((led->active_low && value == LED_OFF) ||
++ (!led->active_low && value != LED_OFF))
++ bcm6328_led_mode(led, BCM6328_LED_MODE_OFF);
++ else
++ bcm6328_led_mode(led, BCM6328_LED_MODE_ON);
++ spin_unlock_irqrestore(led->lock, flags);
++}
++
++static int bcm6328_blink_set(struct led_classdev *led_cdev,
++ unsigned long *delay_on, unsigned long *delay_off)
++{
++ struct bcm6328_led *led =
++ container_of(led_cdev, struct bcm6328_led, cdev);
++ unsigned long delay, flags;
++
++ if (!*delay_on)
++ *delay_on = BCM6328_LED_DEF_DELAY;
++ if (!*delay_off)
++ *delay_off = BCM6328_LED_DEF_DELAY;
++
++ if (*delay_on != *delay_off) {
++ dev_dbg(led_cdev->dev,
++ "fallback to soft blinking (delay_on != delay_off)\n");
++ return -EINVAL;
++ }
++
++ delay = *delay_on / BCM6328_LED_INTERVAL_MS;
++ if (delay == 0)
++ delay = 1;
++ else if (delay > BCM6328_LED_INTV_MASK) {
++ dev_dbg(led_cdev->dev,
++ "fallback to soft blinking (delay > %ums)\n",
++ BCM6328_LED_INTV_MASK * BCM6328_LED_INTERVAL_MS);
++ return -EINVAL;
++ }
++
++ spin_lock_irqsave(led->lock, flags);
++ if (*(led->blink_leds) == 0 ||
++ *(led->blink_leds) == BIT(led->pin) ||
++ *(led->blink_delay) == delay) {
++ unsigned long val;
++
++ *(led->blink_leds) |= BIT(led->pin);
++ *(led->blink_delay) = delay;
++
++ val = bcm6328_led_read(led->mem + BCM6328_REG_INIT);
++ val &= ~BCM6328_LED_FAST_INTV_MASK;
++ val |= (delay << BCM6328_LED_FAST_INTV_SHIFT);
++ bcm6328_led_write(led->mem + BCM6328_REG_INIT, val);
++
++ bcm6328_led_mode(led, BCM6328_LED_MODE_BLINK);
++
++ spin_unlock_irqrestore(led->lock, flags);
++ } else {
++ spin_unlock_irqrestore(led->lock, flags);
++ dev_dbg(led_cdev->dev,
++ "fallback to soft blinking (delay already set)\n");
++ return -EINVAL;
++ }
++
++ return 0;
++}
++
++static int bcm6328_hwled(struct device *dev, struct device_node *nc, u32 reg,
++ void __iomem *mem, spinlock_t *lock)
++{
++ int i, cnt;
++ unsigned long flags, val;
++
++ spin_lock_irqsave(lock, flags);
++ val = bcm6328_led_read(mem + BCM6328_REG_HWDIS);
++ val &= ~BIT(reg);
++ bcm6328_led_write(mem + BCM6328_REG_HWDIS, val);
++ spin_unlock_irqrestore(lock, flags);
++
++ /* Only LEDs 0-7 can be activity/link controlled */
++ if (reg >= 8)
++ return 0;
++
++ cnt = of_property_count_elems_of_size(nc, "brcm,link-signal-sources",
++ sizeof(u32));
++ for (i = 0; i < cnt; i++) {
++ u32 sel;
++ void __iomem *addr;
++
++ if (reg < 4)
++ addr = mem + BCM6328_REG_LNKACTSEL_LO;
++ else
++ addr = mem + BCM6328_REG_LNKACTSEL_HI;
++
++ of_property_read_u32_index(nc, "brcm,link-signal-sources", i,
++ &sel);
++
++ if (reg / 4 != sel / 4) {
++ dev_warn(dev, "invalid link signal source\n");
++ continue;
++ }
++
++ spin_lock_irqsave(lock, flags);
++ val = bcm6328_led_read(addr);
++ val |= (BIT(reg) << (((sel % 4) * 4) + 16));
++ bcm6328_led_write(addr, val);
++ spin_unlock_irqrestore(lock, flags);
++ }
++
++ cnt = of_property_count_elems_of_size(nc,
++ "brcm,activity-signal-sources",
++ sizeof(u32));
++ for (i = 0; i < cnt; i++) {
++ u32 sel;
++ void __iomem *addr;
++
++ if (reg < 4)
++ addr = mem + BCM6328_REG_LNKACTSEL_LO;
++ else
++ addr = mem + BCM6328_REG_LNKACTSEL_HI;
++
++ of_property_read_u32_index(nc, "brcm,activity-signal-sources",
++ i, &sel);
++
++ if (reg / 4 != sel / 4) {
++ dev_warn(dev, "invalid activity signal source\n");
++ continue;
++ }
++
++ spin_lock_irqsave(lock, flags);
++ val = bcm6328_led_read(addr);
++ val |= (BIT(reg) << ((sel % 4) * 4));
++ bcm6328_led_write(addr, val);
++ spin_unlock_irqrestore(lock, flags);
++ }
++
++ return 0;
++}
++
++static int bcm6328_led(struct device *dev, struct device_node *nc, u32 reg,
++ void __iomem *mem, spinlock_t *lock,
++ unsigned long *blink_leds, unsigned long *blink_delay)
++{
++ struct bcm6328_led *led;
++ unsigned long flags;
++ const char *state;
++ int rc;
++
++ led = devm_kzalloc(dev, sizeof(*led), GFP_KERNEL);
++ if (!led)
++ return -ENOMEM;
++
++ led->pin = reg;
++ led->mem = mem;
++ led->lock = lock;
++ led->blink_leds = blink_leds;
++ led->blink_delay = blink_delay;
++
++ if (of_property_read_bool(nc, "active-low"))
++ led->active_low = true;
++
++ led->cdev.name = of_get_property(nc, "label", NULL) ? : nc->name;
++ led->cdev.default_trigger = of_get_property(nc,
++ "linux,default-trigger",
++ NULL);
++
++ if (!of_property_read_string(nc, "default-state", &state)) {
++ spin_lock_irqsave(lock, flags);
++ if (!strcmp(state, "on")) {
++ led->cdev.brightness = LED_FULL;
++ bcm6328_led_mode(led, BCM6328_LED_MODE_ON);
++ } else if (!strcmp(state, "keep")) {
++ void __iomem *mode;
++ unsigned long val, shift;
++
++ shift = bcm6328_pin2shift(led->pin);
++ if (shift / 16)
++ mode = mem + BCM6328_REG_MODE_HI;
++ else
++ mode = mem + BCM6328_REG_MODE_LO;
++
++ val = bcm6328_led_read(mode) >> (shift % 16);
++ val &= BCM6328_LED_MODE_MASK;
++ if (val == BCM6328_LED_MODE_ON)
++ led->cdev.brightness = LED_FULL;
++ else {
++ led->cdev.brightness = LED_OFF;
++ bcm6328_led_mode(led, BCM6328_LED_MODE_OFF);
++ }
++ } else {
++ led->cdev.brightness = LED_OFF;
++ bcm6328_led_mode(led, BCM6328_LED_MODE_OFF);
++ }
++ spin_unlock_irqrestore(lock, flags);
++ }
++
++ led->cdev.brightness_set = bcm6328_led_set;
++ led->cdev.blink_set = bcm6328_blink_set;
++
++ rc = led_classdev_register(dev, &led->cdev);
++ if (rc < 0)
++ return rc;
++
++ dev_dbg(dev, "registered LED %s\n", led->cdev.name);
++
++ return 0;
++}
++
++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;
++ 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);
++ if (IS_ERR(mem))
++ return PTR_ERR(mem);
++
++ lock = devm_kzalloc(dev, sizeof(*lock), GFP_KERNEL);
++ if (!lock)
++ return -ENOMEM;
++
++ blink_leds = devm_kzalloc(dev, sizeof(*blink_leds), GFP_KERNEL);
++ if (!blink_leds)
++ return -ENOMEM;
++
++ blink_delay = devm_kzalloc(dev, sizeof(*blink_delay), GFP_KERNEL);
++ if (!blink_delay)
++ return -ENOMEM;
++
++ spin_lock_init(lock);
++
++ bcm6328_led_write(mem + BCM6328_REG_HWDIS, ~0);
++ bcm6328_led_write(mem + BCM6328_REG_LNKACTSEL_HI, 0);
++ bcm6328_led_write(mem + BCM6328_REG_LNKACTSEL_LO, 0);
++
++ val = bcm6328_led_read(mem + BCM6328_REG_INIT);
++ val &= ~BCM6328_SERIAL_LED_EN;
++ if (of_property_read_bool(np, "brcm,serial-leds"))
++ val |= BCM6328_SERIAL_LED_EN;
++ bcm6328_led_write(mem + BCM6328_REG_INIT, val);
++
++ for_each_available_child_of_node(np, child) {
++ int rc;
++ u32 reg;
++
++ if (of_property_read_u32(child, "reg", ®))
++ continue;
++
++ if (reg >= BCM6328_LED_MAX_COUNT) {
++ dev_err(dev, "invalid LED (>= %d)\n",
++ BCM6328_LED_MAX_COUNT);
++ continue;
++ }
++
++ if (of_property_read_bool(child, "brcm,hardware-controlled"))
++ rc = bcm6328_hwled(dev, child, reg, mem, lock);
++ else
++ rc = bcm6328_led(dev, child, reg, mem, lock,
++ blink_leds, blink_delay);
++
++ if (rc < 0)
++ return rc;
++ }
++
++ return 0;
++}
++
++static const struct of_device_id bcm6328_leds_of_match[] = {
++ { .compatible = "brcm,bcm6328-leds", },
++ { },
++};
++
++static struct platform_driver bcm6328_leds_driver = {
++ .probe = bcm6328_leds_probe,
++ .driver = {
++ .name = "leds-bcm6328",
++ .of_match_table = bcm6328_leds_of_match,
++ },
++};
++
++module_platform_driver(bcm6328_leds_driver);
++
++MODULE_AUTHOR("Álvaro Fernández Rojas <noltari at gmail.com>");
++MODULE_AUTHOR("Jonas Gorski <jogo at openwrt.org>");
++MODULE_DESCRIPTION("LED driver for BCM6328 controllers");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:leds-bcm6328");
diff --git a/target/linux/brcm63xx/patches-3.18/041-leds-add-BCM6358-LED-driver.patch b/target/linux/brcm63xx/patches-3.18/041-leds-add-BCM6358-LED-driver.patch
new file mode 100644
index 0000000..dead890
--- /dev/null
+++ b/target/linux/brcm63xx/patches-3.18/041-leds-add-BCM6358-LED-driver.patch
@@ -0,0 +1,293 @@
+From 589fca16c14adec7ebeb601e22850826e18b8f8d Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari at gmail.com>
+Date: Thu, 21 May 2015 10:11:10 -0700
+Subject: [PATCH] leds: add BCM6358 LED driver
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This adds support for the LED controller on Broadcom's BCM6358.
+
+Signed-off-by: Álvaro Fernández Rojas <noltari at gmail.com>
+Acked-by: Jacek Anaszewski <j.anaszewski at samsung.com>
+Signed-off-by: Bryan Wu <cooloney at gmail.com>
+---
+ drivers/leds/Kconfig | 8 ++
+ drivers/leds/Makefile | 1 +
+ drivers/leds/leds-bcm6358.c | 243 ++++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 252 insertions(+)
+ create mode 100644 drivers/leds/leds-bcm6358.c
+
+--- a/drivers/leds/Kconfig
++++ b/drivers/leds/Kconfig
+@@ -50,6 +50,14 @@ config LEDS_BCM6328
+ This option enables support for LEDs connected to the BCM6328
+ LED HW controller accessed via MMIO registers.
+
++config LEDS_BCM6358
++ tristate "LED Support for Broadcom BCM6358"
++ depends on LEDS_CLASS
++ depends on OF
++ help
++ This option enables support for LEDs connected to the BCM6358
++ LED HW controller accessed via MMIO registers.
++
+ config LEDS_LM3530
+ tristate "LCD Backlight driver for LM3530"
+ depends on LEDS_CLASS
+--- a/drivers/leds/Makefile
++++ b/drivers/leds/Makefile
+@@ -8,6 +8,7 @@ obj-$(CONFIG_LEDS_TRIGGERS) += led-trig
+ # LED Platform Drivers
+ obj-$(CONFIG_LEDS_88PM860X) += leds-88pm860x.o
+ obj-$(CONFIG_LEDS_BCM6328) += leds-bcm6328.o
++obj-$(CONFIG_LEDS_BCM6358) += leds-bcm6358.o
+ obj-$(CONFIG_LEDS_BD2802) += leds-bd2802.o
+ obj-$(CONFIG_LEDS_LOCOMO) += leds-locomo.o
+ obj-$(CONFIG_LEDS_LM3530) += leds-lm3530.o
+--- /dev/null
++++ b/drivers/leds/leds-bcm6358.c
+@@ -0,0 +1,243 @@
++/*
++ * Driver for BCM6358 memory-mapped LEDs, based on leds-syscon.c
++ *
++ * Copyright 2015 Álvaro Fernández Rojas <noltari at gmail.com>
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License as published by the
++ * Free Software Foundation; either version 2 of the License, or (at your
++ * option) any later version.
++ */
++#include <linux/delay.h>
++#include <linux/io.h>
++#include <linux/leds.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/platform_device.h>
++#include <linux/spinlock.h>
++
++#define BCM6358_REG_MODE 0x0
++#define BCM6358_REG_CTRL 0x4
++
++#define BCM6358_SLED_CLKDIV_MASK 3
++#define BCM6358_SLED_CLKDIV_1 0
++#define BCM6358_SLED_CLKDIV_2 1
++#define BCM6358_SLED_CLKDIV_4 2
++#define BCM6358_SLED_CLKDIV_8 3
++
++#define BCM6358_SLED_POLARITY BIT(2)
++#define BCM6358_SLED_BUSY BIT(3)
++
++#define BCM6358_SLED_MAX_COUNT 32
++#define BCM6358_SLED_WAIT 100
++
++/**
++ * struct bcm6358_led - state container for bcm6358 based LEDs
++ * @cdev: LED class device for this LED
++ * @mem: memory resource
++ * @lock: memory lock
++ * @pin: LED pin number
++ * @active_low: LED is active low
++ */
++struct bcm6358_led {
++ struct led_classdev cdev;
++ void __iomem *mem;
++ spinlock_t *lock;
++ unsigned long pin;
++ bool active_low;
++};
++
++static void bcm6358_led_write(void __iomem *reg, unsigned long data)
++{
++ iowrite32be(data, reg);
++}
++
++static unsigned long bcm6358_led_read(void __iomem *reg)
++{
++ return ioread32be(reg);
++}
++
++static unsigned long bcm6358_led_busy(void __iomem *mem)
++{
++ unsigned long val;
++
++ while ((val = bcm6358_led_read(mem + BCM6358_REG_CTRL)) &
++ BCM6358_SLED_BUSY)
++ udelay(BCM6358_SLED_WAIT);
++
++ return val;
++}
++
++static void bcm6358_led_mode(struct bcm6358_led *led, unsigned long value)
++{
++ unsigned long val;
++
++ bcm6358_led_busy(led->mem);
++
++ val = bcm6358_led_read(led->mem + BCM6358_REG_MODE);
++ if ((led->active_low && value == LED_OFF) ||
++ (!led->active_low && value != LED_OFF))
++ val |= BIT(led->pin);
++ else
++ val &= ~(BIT(led->pin));
++ bcm6358_led_write(led->mem + BCM6358_REG_MODE, val);
++}
++
++static void bcm6358_led_set(struct led_classdev *led_cdev,
++ enum led_brightness value)
++{
++ struct bcm6358_led *led =
++ container_of(led_cdev, struct bcm6358_led, cdev);
++ unsigned long flags;
++
++ spin_lock_irqsave(led->lock, flags);
++ bcm6358_led_mode(led, value);
++ spin_unlock_irqrestore(led->lock, flags);
++}
++
++static int bcm6358_led(struct device *dev, struct device_node *nc, u32 reg,
++ void __iomem *mem, spinlock_t *lock)
++{
++ struct bcm6358_led *led;
++ unsigned long flags;
++ const char *state;
++ int rc;
++
++ led = devm_kzalloc(dev, sizeof(*led), GFP_KERNEL);
++ if (!led)
++ return -ENOMEM;
++
++ led->pin = reg;
++ led->mem = mem;
++ led->lock = lock;
++
++ if (of_property_read_bool(nc, "active-low"))
++ led->active_low = true;
++
++ led->cdev.name = of_get_property(nc, "label", NULL) ? : nc->name;
++ led->cdev.default_trigger = of_get_property(nc,
++ "linux,default-trigger",
++ NULL);
++
++ spin_lock_irqsave(lock, flags);
++ if (!of_property_read_string(nc, "default-state", &state)) {
++ if (!strcmp(state, "on")) {
++ led->cdev.brightness = LED_FULL;
++ } else if (!strcmp(state, "keep")) {
++ unsigned long val;
++
++ bcm6358_led_busy(led->mem);
++
++ val = bcm6358_led_read(led->mem + BCM6358_REG_MODE);
++ val &= BIT(led->pin);
++ if ((led->active_low && !val) ||
++ (!led->active_low && val))
++ led->cdev.brightness = LED_FULL;
++ else
++ led->cdev.brightness = LED_OFF;
++ } else {
++ led->cdev.brightness = LED_OFF;
++ }
++ } else {
++ led->cdev.brightness = LED_OFF;
++ }
++ bcm6358_led_mode(led, led->cdev.brightness);
++ spin_unlock_irqrestore(lock, flags);
++
++ led->cdev.brightness_set = bcm6358_led_set;
++
++ rc = led_classdev_register(dev, &led->cdev);
++ if (rc < 0)
++ return rc;
++
++ dev_dbg(dev, "registered LED %s\n", led->cdev.name);
++
++ return 0;
++}
++
++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);
++ if (IS_ERR(mem))
++ return PTR_ERR(mem);
++
++ lock = devm_kzalloc(dev, sizeof(*lock), GFP_KERNEL);
++ if (!lock)
++ return -ENOMEM;
++
++ spin_lock_init(lock);
++
++ val = bcm6358_led_busy(mem);
++ val &= ~(BCM6358_SLED_POLARITY | BCM6358_SLED_CLKDIV_MASK);
++ if (of_property_read_bool(np, "brcm,clk-dat-low"))
++ val |= BCM6358_SLED_POLARITY;
++ of_property_read_u32(np, "brcm,clk-div", &clk_div);
++ switch (clk_div) {
++ case 8:
++ val |= BCM6358_SLED_CLKDIV_8;
++ break;
++ case 4:
++ val |= BCM6358_SLED_CLKDIV_4;
++ break;
++ case 2:
++ val |= BCM6358_SLED_CLKDIV_2;
++ break;
++ default:
++ val |= BCM6358_SLED_CLKDIV_1;
++ break;
++ }
++ bcm6358_led_write(mem + BCM6358_REG_CTRL, val);
++
++ for_each_available_child_of_node(np, child) {
++ int rc;
++ u32 reg;
++
++ if (of_property_read_u32(child, "reg", ®))
++ continue;
++
++ if (reg >= BCM6358_SLED_MAX_COUNT) {
++ dev_err(dev, "invalid LED (%u >= %d)\n", reg,
++ BCM6358_SLED_MAX_COUNT);
++ continue;
++ }
++
++ rc = bcm6358_led(dev, child, reg, mem, lock);
++ if (rc < 0)
++ return rc;
++ }
++
++ return 0;
++}
++
++static const struct of_device_id bcm6358_leds_of_match[] = {
++ { .compatible = "brcm,bcm6358-leds", },
++ { },
++};
++
++static struct platform_driver bcm6358_leds_driver = {
++ .probe = bcm6358_leds_probe,
++ .driver = {
++ .name = "leds-bcm6358",
++ .of_match_table = bcm6358_leds_of_match,
++ },
++};
++
++module_platform_driver(bcm6358_leds_driver);
++
++MODULE_AUTHOR("Álvaro Fernández Rojas <noltari at gmail.com>");
++MODULE_DESCRIPTION("LED driver for BCM6358 controllers");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:leds-bcm6358");
diff --git a/target/linux/brcm63xx/patches-3.18/042-leds-bcm6328-add-more-configuration-options-and-fix-.patch b/target/linux/brcm63xx/patches-3.18/042-leds-bcm6328-add-more-configuration-options-and-fix-.patch
new file mode 100644
index 0000000..0371122
--- /dev/null
+++ b/target/linux/brcm63xx/patches-3.18/042-leds-bcm6328-add-more-configuration-options-and-fix-.patch
@@ -0,0 +1,106 @@
+From 7a4f726f42d600f526155d6c66b8c4e5a0feb5f6 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari at gmail.com>
+Date: Thu, 30 Jul 2015 08:38:33 +0200
+Subject: [PATCH] leds-bcm6328: add more configuration options and fix default
+ state initialization
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: Álvaro Fernández Rojas <noltari at gmail.com>
+---
+ .../devicetree/bindings/leds/leds-bcm6328.txt | 8 +++++
+ drivers/leds/leds-bcm6328.c | 41 ++++++++++++++++------
+ 1 files changed, 30 insertions(+), 11 deletions(-)
+
+--- a/drivers/leds/leds-bcm6328.c
++++ b/drivers/leds/leds-bcm6328.c
+@@ -41,6 +41,11 @@
+ #define BCM6328_SERIAL_LED_SHIFT_DIR BIT(16)
+ #define BCM6328_LED_SHIFT_TEST BIT(30)
+ #define BCM6328_LED_TEST BIT(31)
++#define BCM6328_INIT_MASK (BCM6328_SERIAL_LED_EN | \
++ BCM6328_SERIAL_LED_MUX | \
++ BCM6328_SERIAL_LED_CLK_NPOL | \
++ BCM6328_SERIAL_LED_DATA_PPOL | \
++ BCM6328_SERIAL_LED_SHIFT_DIR)
+
+ #define BCM6328_LED_MODE_MASK 3
+ #define BCM6328_LED_MODE_OFF 0
+@@ -281,11 +286,10 @@ static int bcm6328_led(struct device *de
+ "linux,default-trigger",
+ NULL);
+
++ spin_lock_irqsave(lock, flags);
+ if (!of_property_read_string(nc, "default-state", &state)) {
+- spin_lock_irqsave(lock, flags);
+ if (!strcmp(state, "on")) {
+ led->cdev.brightness = LED_FULL;
+- bcm6328_led_mode(led, BCM6328_LED_MODE_ON);
+ } else if (!strcmp(state, "keep")) {
+ void __iomem *mode;
+ unsigned long val, shift;
+@@ -296,21 +300,28 @@ static int bcm6328_led(struct device *de
+ else
+ mode = mem + BCM6328_REG_MODE_LO;
+
+- val = bcm6328_led_read(mode) >> (shift % 16);
++ val = bcm6328_led_read(mode) >>
++ BCM6328_LED_SHIFT(shift % 16);
+ val &= BCM6328_LED_MODE_MASK;
+- if (val == BCM6328_LED_MODE_ON)
++ if ((led->active_low && val == BCM6328_LED_MODE_ON) ||
++ (!led->active_low && val == BCM6328_LED_MODE_OFF))
+ led->cdev.brightness = LED_FULL;
+- else {
++ else
+ led->cdev.brightness = LED_OFF;
+- bcm6328_led_mode(led, BCM6328_LED_MODE_OFF);
+- }
+ } else {
+ led->cdev.brightness = LED_OFF;
+- bcm6328_led_mode(led, BCM6328_LED_MODE_OFF);
+ }
+- spin_unlock_irqrestore(lock, flags);
++ } else {
++ led->cdev.brightness = LED_OFF;
+ }
+
++ if ((led->active_low && led->cdev.brightness == LED_FULL) ||
++ (!led->active_low && led->cdev.brightness == LED_OFF))
++ bcm6328_led_mode(led, BCM6328_LED_MODE_ON);
++ else
++ bcm6328_led_mode(led, BCM6328_LED_MODE_OFF);
++ spin_unlock_irqrestore(lock, flags);
++
+ led->cdev.brightness_set = bcm6328_led_set;
+ led->cdev.blink_set = bcm6328_blink_set;
+
+@@ -360,9 +371,17 @@ static int bcm6328_leds_probe(struct pla
+ bcm6328_led_write(mem + BCM6328_REG_LNKACTSEL_LO, 0);
+
+ val = bcm6328_led_read(mem + BCM6328_REG_INIT);
+- val &= ~BCM6328_SERIAL_LED_EN;
++ val &= ~(BCM6328_INIT_MASK);
+ if (of_property_read_bool(np, "brcm,serial-leds"))
+ val |= BCM6328_SERIAL_LED_EN;
++ if (of_property_read_bool(np, "brcm,serial-mux"))
++ val |= BCM6328_SERIAL_LED_MUX;
++ if (of_property_read_bool(np, "brcm,serial-clk-low"))
++ val |= BCM6328_SERIAL_LED_CLK_NPOL;
++ if (!of_property_read_bool(np, "brcm,serial-dat-low"))
++ val |= BCM6328_SERIAL_LED_DATA_PPOL;
++ if (!of_property_read_bool(np, "brcm,serial-shift-inv"))
++ val |= BCM6328_SERIAL_LED_SHIFT_DIR;
+ bcm6328_led_write(mem + BCM6328_REG_INIT, val);
+
+ for_each_available_child_of_node(np, child) {
+@@ -373,7 +392,7 @@ static int bcm6328_leds_probe(struct pla
+ continue;
+
+ if (reg >= BCM6328_LED_MAX_COUNT) {
+- dev_err(dev, "invalid LED (>= %d)\n",
++ dev_err(dev, "invalid LED (%u >= %d)\n", reg,
+ BCM6328_LED_MAX_COUNT);
+ continue;
+ }
diff --git a/target/linux/brcm63xx/patches-4.1/020-leds-add-BCM6328-LED-driver.patch b/target/linux/brcm63xx/patches-4.1/020-leds-add-BCM6328-LED-driver.patch
new file mode 100644
index 0000000..fc3d03a
--- /dev/null
+++ b/target/linux/brcm63xx/patches-4.1/020-leds-add-BCM6328-LED-driver.patch
@@ -0,0 +1,464 @@
+From fd7b025a238d0a5440bfa26c585eb78097bf48dc Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari at gmail.com>
+Date: Tue, 28 Apr 2015 09:50:50 -0700
+Subject: [PATCH] leds: add BCM6328 LED driver
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This adds support for the LED controller on Broadcom's BCM6328.
+
+Signed-off-by: Álvaro Fernández Rojas <noltari at gmail.com>
+Signed-off-by: Jonas Gorski <jogo at openwrt.org>
+Acked-by: Jacek Anaszewski <j.anaszewski at samsung.com>
+Signed-off-by: Bryan Wu <cooloney at gmail.com>
+---
+ drivers/leds/Kconfig | 8 +
+ drivers/leds/Makefile | 1 +
+ drivers/leds/leds-bcm6328.c | 413 ++++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 422 insertions(+)
+ create mode 100644 drivers/leds/leds-bcm6328.c
+
+--- a/drivers/leds/Kconfig
++++ b/drivers/leds/Kconfig
+@@ -42,6 +42,14 @@ config LEDS_88PM860X
+ This option enables support for on-chip LED drivers found on Marvell
+ Semiconductor 88PM8606 PMIC.
+
++config LEDS_BCM6328
++ tristate "LED Support for Broadcom BCM6328"
++ depends on LEDS_CLASS
++ depends on OF
++ help
++ This option enables support for LEDs connected to the BCM6328
++ LED HW controller accessed via MMIO registers.
++
+ config LEDS_LM3530
+ tristate "LCD Backlight driver for LM3530"
+ depends on LEDS_CLASS
+--- a/drivers/leds/Makefile
++++ b/drivers/leds/Makefile
+@@ -7,6 +7,7 @@ obj-$(CONFIG_LEDS_TRIGGERS) += led-trig
+
+ # LED Platform Drivers
+ obj-$(CONFIG_LEDS_88PM860X) += leds-88pm860x.o
++obj-$(CONFIG_LEDS_BCM6328) += leds-bcm6328.o
+ obj-$(CONFIG_LEDS_BD2802) += leds-bd2802.o
+ obj-$(CONFIG_LEDS_LOCOMO) += leds-locomo.o
+ obj-$(CONFIG_LEDS_LM3530) += leds-lm3530.o
+--- /dev/null
++++ b/drivers/leds/leds-bcm6328.c
+@@ -0,0 +1,413 @@
++/*
++ * Driver for BCM6328 memory-mapped LEDs, based on leds-syscon.c
++ *
++ * Copyright 2015 Álvaro Fernández Rojas <noltari at gmail.com>
++ * Copyright 2015 Jonas Gorski <jogo at openwrt.org>
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License as published by the
++ * Free Software Foundation; either version 2 of the License, or (at your
++ * option) any later version.
++ */
++#include <linux/io.h>
++#include <linux/leds.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/platform_device.h>
++#include <linux/spinlock.h>
++
++#define BCM6328_REG_INIT 0x00
++#define BCM6328_REG_MODE_HI 0x04
++#define BCM6328_REG_MODE_LO 0x08
++#define BCM6328_REG_HWDIS 0x0c
++#define BCM6328_REG_STROBE 0x10
++#define BCM6328_REG_LNKACTSEL_HI 0x14
++#define BCM6328_REG_LNKACTSEL_LO 0x18
++#define BCM6328_REG_RBACK 0x1c
++#define BCM6328_REG_SERMUX 0x20
++
++#define BCM6328_LED_MAX_COUNT 24
++#define BCM6328_LED_DEF_DELAY 500
++#define BCM6328_LED_INTERVAL_MS 20
++
++#define BCM6328_LED_INTV_MASK 0x3f
++#define BCM6328_LED_FAST_INTV_SHIFT 6
++#define BCM6328_LED_FAST_INTV_MASK (BCM6328_LED_INTV_MASK << \
++ BCM6328_LED_FAST_INTV_SHIFT)
++#define BCM6328_SERIAL_LED_EN BIT(12)
++#define BCM6328_SERIAL_LED_MUX BIT(13)
++#define BCM6328_SERIAL_LED_CLK_NPOL BIT(14)
++#define BCM6328_SERIAL_LED_DATA_PPOL BIT(15)
++#define BCM6328_SERIAL_LED_SHIFT_DIR BIT(16)
++#define BCM6328_LED_SHIFT_TEST BIT(30)
++#define BCM6328_LED_TEST BIT(31)
++
++#define BCM6328_LED_MODE_MASK 3
++#define BCM6328_LED_MODE_OFF 0
++#define BCM6328_LED_MODE_FAST 1
++#define BCM6328_LED_MODE_BLINK 2
++#define BCM6328_LED_MODE_ON 3
++#define BCM6328_LED_SHIFT(X) ((X) << 1)
++
++/**
++ * struct bcm6328_led - state container for bcm6328 based LEDs
++ * @cdev: LED class device for this LED
++ * @mem: memory resource
++ * @lock: memory lock
++ * @pin: LED pin number
++ * @blink_leds: blinking LEDs
++ * @blink_delay: blinking delay
++ * @active_low: LED is active low
++ */
++struct bcm6328_led {
++ struct led_classdev cdev;
++ void __iomem *mem;
++ spinlock_t *lock;
++ unsigned long pin;
++ unsigned long *blink_leds;
++ unsigned long *blink_delay;
++ bool active_low;
++};
++
++static void bcm6328_led_write(void __iomem *reg, unsigned long data)
++{
++ iowrite32be(data, reg);
++}
++
++static unsigned long bcm6328_led_read(void __iomem *reg)
++{
++ return ioread32be(reg);
++}
++
++/**
++ * LEDMode 64 bits / 24 LEDs
++ * bits [31:0] -> LEDs 8-23
++ * bits [47:32] -> LEDs 0-7
++ * bits [63:48] -> unused
++ */
++static unsigned long bcm6328_pin2shift(unsigned long pin)
++{
++ if (pin < 8)
++ return pin + 16; /* LEDs 0-7 (bits 47:32) */
++ else
++ return pin - 8; /* LEDs 8-23 (bits 31:0) */
++}
++
++static void bcm6328_led_mode(struct bcm6328_led *led, unsigned long value)
++{
++ void __iomem *mode;
++ unsigned long val, shift;
++
++ shift = bcm6328_pin2shift(led->pin);
++ if (shift / 16)
++ mode = led->mem + BCM6328_REG_MODE_HI;
++ else
++ mode = led->mem + BCM6328_REG_MODE_LO;
++
++ val = bcm6328_led_read(mode);
++ val &= ~(BCM6328_LED_MODE_MASK << BCM6328_LED_SHIFT(shift % 16));
++ val |= (value << BCM6328_LED_SHIFT(shift % 16));
++ bcm6328_led_write(mode, val);
++}
++
++static void bcm6328_led_set(struct led_classdev *led_cdev,
++ enum led_brightness value)
++{
++ struct bcm6328_led *led =
++ container_of(led_cdev, struct bcm6328_led, cdev);
++ unsigned long flags;
++
++ spin_lock_irqsave(led->lock, flags);
++ *(led->blink_leds) &= ~BIT(led->pin);
++ if ((led->active_low && value == LED_OFF) ||
++ (!led->active_low && value != LED_OFF))
++ bcm6328_led_mode(led, BCM6328_LED_MODE_OFF);
++ else
++ bcm6328_led_mode(led, BCM6328_LED_MODE_ON);
++ spin_unlock_irqrestore(led->lock, flags);
++}
++
++static int bcm6328_blink_set(struct led_classdev *led_cdev,
++ unsigned long *delay_on, unsigned long *delay_off)
++{
++ struct bcm6328_led *led =
++ container_of(led_cdev, struct bcm6328_led, cdev);
++ unsigned long delay, flags;
++
++ if (!*delay_on)
++ *delay_on = BCM6328_LED_DEF_DELAY;
++ if (!*delay_off)
++ *delay_off = BCM6328_LED_DEF_DELAY;
++
++ if (*delay_on != *delay_off) {
++ dev_dbg(led_cdev->dev,
++ "fallback to soft blinking (delay_on != delay_off)\n");
++ return -EINVAL;
++ }
++
++ delay = *delay_on / BCM6328_LED_INTERVAL_MS;
++ if (delay == 0)
++ delay = 1;
++ else if (delay > BCM6328_LED_INTV_MASK) {
++ dev_dbg(led_cdev->dev,
++ "fallback to soft blinking (delay > %ums)\n",
++ BCM6328_LED_INTV_MASK * BCM6328_LED_INTERVAL_MS);
++ return -EINVAL;
++ }
++
++ spin_lock_irqsave(led->lock, flags);
++ if (*(led->blink_leds) == 0 ||
++ *(led->blink_leds) == BIT(led->pin) ||
++ *(led->blink_delay) == delay) {
++ unsigned long val;
++
++ *(led->blink_leds) |= BIT(led->pin);
++ *(led->blink_delay) = delay;
++
++ val = bcm6328_led_read(led->mem + BCM6328_REG_INIT);
++ val &= ~BCM6328_LED_FAST_INTV_MASK;
++ val |= (delay << BCM6328_LED_FAST_INTV_SHIFT);
++ bcm6328_led_write(led->mem + BCM6328_REG_INIT, val);
++
++ bcm6328_led_mode(led, BCM6328_LED_MODE_BLINK);
++
++ spin_unlock_irqrestore(led->lock, flags);
++ } else {
++ spin_unlock_irqrestore(led->lock, flags);
++ dev_dbg(led_cdev->dev,
++ "fallback to soft blinking (delay already set)\n");
++ return -EINVAL;
++ }
++
++ return 0;
++}
++
++static int bcm6328_hwled(struct device *dev, struct device_node *nc, u32 reg,
++ void __iomem *mem, spinlock_t *lock)
++{
++ int i, cnt;
++ unsigned long flags, val;
++
++ spin_lock_irqsave(lock, flags);
++ val = bcm6328_led_read(mem + BCM6328_REG_HWDIS);
++ val &= ~BIT(reg);
++ bcm6328_led_write(mem + BCM6328_REG_HWDIS, val);
++ spin_unlock_irqrestore(lock, flags);
++
++ /* Only LEDs 0-7 can be activity/link controlled */
++ if (reg >= 8)
++ return 0;
++
++ cnt = of_property_count_elems_of_size(nc, "brcm,link-signal-sources",
++ sizeof(u32));
++ for (i = 0; i < cnt; i++) {
++ u32 sel;
++ void __iomem *addr;
++
++ if (reg < 4)
++ addr = mem + BCM6328_REG_LNKACTSEL_LO;
++ else
++ addr = mem + BCM6328_REG_LNKACTSEL_HI;
++
++ of_property_read_u32_index(nc, "brcm,link-signal-sources", i,
++ &sel);
++
++ if (reg / 4 != sel / 4) {
++ dev_warn(dev, "invalid link signal source\n");
++ continue;
++ }
++
++ spin_lock_irqsave(lock, flags);
++ val = bcm6328_led_read(addr);
++ val |= (BIT(reg) << (((sel % 4) * 4) + 16));
++ bcm6328_led_write(addr, val);
++ spin_unlock_irqrestore(lock, flags);
++ }
++
++ cnt = of_property_count_elems_of_size(nc,
++ "brcm,activity-signal-sources",
++ sizeof(u32));
++ for (i = 0; i < cnt; i++) {
++ u32 sel;
++ void __iomem *addr;
++
++ if (reg < 4)
++ addr = mem + BCM6328_REG_LNKACTSEL_LO;
++ else
++ addr = mem + BCM6328_REG_LNKACTSEL_HI;
++
++ of_property_read_u32_index(nc, "brcm,activity-signal-sources",
++ i, &sel);
++
++ if (reg / 4 != sel / 4) {
++ dev_warn(dev, "invalid activity signal source\n");
++ continue;
++ }
++
++ spin_lock_irqsave(lock, flags);
++ val = bcm6328_led_read(addr);
++ val |= (BIT(reg) << ((sel % 4) * 4));
++ bcm6328_led_write(addr, val);
++ spin_unlock_irqrestore(lock, flags);
++ }
++
++ return 0;
++}
++
++static int bcm6328_led(struct device *dev, struct device_node *nc, u32 reg,
++ void __iomem *mem, spinlock_t *lock,
++ unsigned long *blink_leds, unsigned long *blink_delay)
++{
++ struct bcm6328_led *led;
++ unsigned long flags;
++ const char *state;
++ int rc;
++
++ led = devm_kzalloc(dev, sizeof(*led), GFP_KERNEL);
++ if (!led)
++ return -ENOMEM;
++
++ led->pin = reg;
++ led->mem = mem;
++ led->lock = lock;
++ led->blink_leds = blink_leds;
++ led->blink_delay = blink_delay;
++
++ if (of_property_read_bool(nc, "active-low"))
++ led->active_low = true;
++
++ led->cdev.name = of_get_property(nc, "label", NULL) ? : nc->name;
++ led->cdev.default_trigger = of_get_property(nc,
++ "linux,default-trigger",
++ NULL);
++
++ if (!of_property_read_string(nc, "default-state", &state)) {
++ spin_lock_irqsave(lock, flags);
++ if (!strcmp(state, "on")) {
++ led->cdev.brightness = LED_FULL;
++ bcm6328_led_mode(led, BCM6328_LED_MODE_ON);
++ } else if (!strcmp(state, "keep")) {
++ void __iomem *mode;
++ unsigned long val, shift;
++
++ shift = bcm6328_pin2shift(led->pin);
++ if (shift / 16)
++ mode = mem + BCM6328_REG_MODE_HI;
++ else
++ mode = mem + BCM6328_REG_MODE_LO;
++
++ val = bcm6328_led_read(mode) >> (shift % 16);
++ val &= BCM6328_LED_MODE_MASK;
++ if (val == BCM6328_LED_MODE_ON)
++ led->cdev.brightness = LED_FULL;
++ else {
++ led->cdev.brightness = LED_OFF;
++ bcm6328_led_mode(led, BCM6328_LED_MODE_OFF);
++ }
++ } else {
++ led->cdev.brightness = LED_OFF;
++ bcm6328_led_mode(led, BCM6328_LED_MODE_OFF);
++ }
++ spin_unlock_irqrestore(lock, flags);
++ }
++
++ led->cdev.brightness_set = bcm6328_led_set;
++ led->cdev.blink_set = bcm6328_blink_set;
++
++ rc = led_classdev_register(dev, &led->cdev);
++ if (rc < 0)
++ return rc;
++
++ dev_dbg(dev, "registered LED %s\n", led->cdev.name);
++
++ return 0;
++}
++
++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;
++ 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);
++ if (IS_ERR(mem))
++ return PTR_ERR(mem);
++
++ lock = devm_kzalloc(dev, sizeof(*lock), GFP_KERNEL);
++ if (!lock)
++ return -ENOMEM;
++
++ blink_leds = devm_kzalloc(dev, sizeof(*blink_leds), GFP_KERNEL);
++ if (!blink_leds)
++ return -ENOMEM;
++
++ blink_delay = devm_kzalloc(dev, sizeof(*blink_delay), GFP_KERNEL);
++ if (!blink_delay)
++ return -ENOMEM;
++
++ spin_lock_init(lock);
++
++ bcm6328_led_write(mem + BCM6328_REG_HWDIS, ~0);
++ bcm6328_led_write(mem + BCM6328_REG_LNKACTSEL_HI, 0);
++ bcm6328_led_write(mem + BCM6328_REG_LNKACTSEL_LO, 0);
++
++ val = bcm6328_led_read(mem + BCM6328_REG_INIT);
++ val &= ~BCM6328_SERIAL_LED_EN;
++ if (of_property_read_bool(np, "brcm,serial-leds"))
++ val |= BCM6328_SERIAL_LED_EN;
++ bcm6328_led_write(mem + BCM6328_REG_INIT, val);
++
++ for_each_available_child_of_node(np, child) {
++ int rc;
++ u32 reg;
++
++ if (of_property_read_u32(child, "reg", ®))
++ continue;
++
++ if (reg >= BCM6328_LED_MAX_COUNT) {
++ dev_err(dev, "invalid LED (>= %d)\n",
++ BCM6328_LED_MAX_COUNT);
++ continue;
++ }
++
++ if (of_property_read_bool(child, "brcm,hardware-controlled"))
++ rc = bcm6328_hwled(dev, child, reg, mem, lock);
++ else
++ rc = bcm6328_led(dev, child, reg, mem, lock,
++ blink_leds, blink_delay);
++
++ if (rc < 0)
++ return rc;
++ }
++
++ return 0;
++}
++
++static const struct of_device_id bcm6328_leds_of_match[] = {
++ { .compatible = "brcm,bcm6328-leds", },
++ { },
++};
++
++static struct platform_driver bcm6328_leds_driver = {
++ .probe = bcm6328_leds_probe,
++ .driver = {
++ .name = "leds-bcm6328",
++ .of_match_table = bcm6328_leds_of_match,
++ },
++};
++
++module_platform_driver(bcm6328_leds_driver);
++
++MODULE_AUTHOR("Álvaro Fernández Rojas <noltari at gmail.com>");
++MODULE_AUTHOR("Jonas Gorski <jogo at openwrt.org>");
++MODULE_DESCRIPTION("LED driver for BCM6328 controllers");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:leds-bcm6328");
diff --git a/target/linux/brcm63xx/patches-4.1/021-leds-add-BCM6358-LED-driver.patch b/target/linux/brcm63xx/patches-4.1/021-leds-add-BCM6358-LED-driver.patch
new file mode 100644
index 0000000..dead890
--- /dev/null
+++ b/target/linux/brcm63xx/patches-4.1/021-leds-add-BCM6358-LED-driver.patch
@@ -0,0 +1,293 @@
+From 589fca16c14adec7ebeb601e22850826e18b8f8d Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari at gmail.com>
+Date: Thu, 21 May 2015 10:11:10 -0700
+Subject: [PATCH] leds: add BCM6358 LED driver
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This adds support for the LED controller on Broadcom's BCM6358.
+
+Signed-off-by: Álvaro Fernández Rojas <noltari at gmail.com>
+Acked-by: Jacek Anaszewski <j.anaszewski at samsung.com>
+Signed-off-by: Bryan Wu <cooloney at gmail.com>
+---
+ drivers/leds/Kconfig | 8 ++
+ drivers/leds/Makefile | 1 +
+ drivers/leds/leds-bcm6358.c | 243 ++++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 252 insertions(+)
+ create mode 100644 drivers/leds/leds-bcm6358.c
+
+--- a/drivers/leds/Kconfig
++++ b/drivers/leds/Kconfig
+@@ -50,6 +50,14 @@ config LEDS_BCM6328
+ This option enables support for LEDs connected to the BCM6328
+ LED HW controller accessed via MMIO registers.
+
++config LEDS_BCM6358
++ tristate "LED Support for Broadcom BCM6358"
++ depends on LEDS_CLASS
++ depends on OF
++ help
++ This option enables support for LEDs connected to the BCM6358
++ LED HW controller accessed via MMIO registers.
++
+ config LEDS_LM3530
+ tristate "LCD Backlight driver for LM3530"
+ depends on LEDS_CLASS
+--- a/drivers/leds/Makefile
++++ b/drivers/leds/Makefile
+@@ -8,6 +8,7 @@ obj-$(CONFIG_LEDS_TRIGGERS) += led-trig
+ # LED Platform Drivers
+ obj-$(CONFIG_LEDS_88PM860X) += leds-88pm860x.o
+ obj-$(CONFIG_LEDS_BCM6328) += leds-bcm6328.o
++obj-$(CONFIG_LEDS_BCM6358) += leds-bcm6358.o
+ obj-$(CONFIG_LEDS_BD2802) += leds-bd2802.o
+ obj-$(CONFIG_LEDS_LOCOMO) += leds-locomo.o
+ obj-$(CONFIG_LEDS_LM3530) += leds-lm3530.o
+--- /dev/null
++++ b/drivers/leds/leds-bcm6358.c
+@@ -0,0 +1,243 @@
++/*
++ * Driver for BCM6358 memory-mapped LEDs, based on leds-syscon.c
++ *
++ * Copyright 2015 Álvaro Fernández Rojas <noltari at gmail.com>
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License as published by the
++ * Free Software Foundation; either version 2 of the License, or (at your
++ * option) any later version.
++ */
++#include <linux/delay.h>
++#include <linux/io.h>
++#include <linux/leds.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/platform_device.h>
++#include <linux/spinlock.h>
++
++#define BCM6358_REG_MODE 0x0
++#define BCM6358_REG_CTRL 0x4
++
++#define BCM6358_SLED_CLKDIV_MASK 3
++#define BCM6358_SLED_CLKDIV_1 0
++#define BCM6358_SLED_CLKDIV_2 1
++#define BCM6358_SLED_CLKDIV_4 2
++#define BCM6358_SLED_CLKDIV_8 3
++
++#define BCM6358_SLED_POLARITY BIT(2)
++#define BCM6358_SLED_BUSY BIT(3)
++
++#define BCM6358_SLED_MAX_COUNT 32
++#define BCM6358_SLED_WAIT 100
++
++/**
++ * struct bcm6358_led - state container for bcm6358 based LEDs
++ * @cdev: LED class device for this LED
++ * @mem: memory resource
++ * @lock: memory lock
++ * @pin: LED pin number
++ * @active_low: LED is active low
++ */
++struct bcm6358_led {
++ struct led_classdev cdev;
++ void __iomem *mem;
++ spinlock_t *lock;
++ unsigned long pin;
++ bool active_low;
++};
++
++static void bcm6358_led_write(void __iomem *reg, unsigned long data)
++{
++ iowrite32be(data, reg);
++}
++
++static unsigned long bcm6358_led_read(void __iomem *reg)
++{
++ return ioread32be(reg);
++}
++
++static unsigned long bcm6358_led_busy(void __iomem *mem)
++{
++ unsigned long val;
++
++ while ((val = bcm6358_led_read(mem + BCM6358_REG_CTRL)) &
++ BCM6358_SLED_BUSY)
++ udelay(BCM6358_SLED_WAIT);
++
++ return val;
++}
++
++static void bcm6358_led_mode(struct bcm6358_led *led, unsigned long value)
++{
++ unsigned long val;
++
++ bcm6358_led_busy(led->mem);
++
++ val = bcm6358_led_read(led->mem + BCM6358_REG_MODE);
++ if ((led->active_low && value == LED_OFF) ||
++ (!led->active_low && value != LED_OFF))
++ val |= BIT(led->pin);
++ else
++ val &= ~(BIT(led->pin));
++ bcm6358_led_write(led->mem + BCM6358_REG_MODE, val);
++}
++
++static void bcm6358_led_set(struct led_classdev *led_cdev,
++ enum led_brightness value)
++{
++ struct bcm6358_led *led =
++ container_of(led_cdev, struct bcm6358_led, cdev);
++ unsigned long flags;
++
++ spin_lock_irqsave(led->lock, flags);
++ bcm6358_led_mode(led, value);
++ spin_unlock_irqrestore(led->lock, flags);
++}
++
++static int bcm6358_led(struct device *dev, struct device_node *nc, u32 reg,
++ void __iomem *mem, spinlock_t *lock)
++{
++ struct bcm6358_led *led;
++ unsigned long flags;
++ const char *state;
++ int rc;
++
++ led = devm_kzalloc(dev, sizeof(*led), GFP_KERNEL);
++ if (!led)
++ return -ENOMEM;
++
++ led->pin = reg;
++ led->mem = mem;
++ led->lock = lock;
++
++ if (of_property_read_bool(nc, "active-low"))
++ led->active_low = true;
++
++ led->cdev.name = of_get_property(nc, "label", NULL) ? : nc->name;
++ led->cdev.default_trigger = of_get_property(nc,
++ "linux,default-trigger",
++ NULL);
++
++ spin_lock_irqsave(lock, flags);
++ if (!of_property_read_string(nc, "default-state", &state)) {
++ if (!strcmp(state, "on")) {
++ led->cdev.brightness = LED_FULL;
++ } else if (!strcmp(state, "keep")) {
++ unsigned long val;
++
++ bcm6358_led_busy(led->mem);
++
++ val = bcm6358_led_read(led->mem + BCM6358_REG_MODE);
++ val &= BIT(led->pin);
++ if ((led->active_low && !val) ||
++ (!led->active_low && val))
++ led->cdev.brightness = LED_FULL;
++ else
++ led->cdev.brightness = LED_OFF;
++ } else {
++ led->cdev.brightness = LED_OFF;
++ }
++ } else {
++ led->cdev.brightness = LED_OFF;
++ }
++ bcm6358_led_mode(led, led->cdev.brightness);
++ spin_unlock_irqrestore(lock, flags);
++
++ led->cdev.brightness_set = bcm6358_led_set;
++
++ rc = led_classdev_register(dev, &led->cdev);
++ if (rc < 0)
++ return rc;
++
++ dev_dbg(dev, "registered LED %s\n", led->cdev.name);
++
++ return 0;
++}
++
++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);
++ if (IS_ERR(mem))
++ return PTR_ERR(mem);
++
++ lock = devm_kzalloc(dev, sizeof(*lock), GFP_KERNEL);
++ if (!lock)
++ return -ENOMEM;
++
++ spin_lock_init(lock);
++
++ val = bcm6358_led_busy(mem);
++ val &= ~(BCM6358_SLED_POLARITY | BCM6358_SLED_CLKDIV_MASK);
++ if (of_property_read_bool(np, "brcm,clk-dat-low"))
++ val |= BCM6358_SLED_POLARITY;
++ of_property_read_u32(np, "brcm,clk-div", &clk_div);
++ switch (clk_div) {
++ case 8:
++ val |= BCM6358_SLED_CLKDIV_8;
++ break;
++ case 4:
++ val |= BCM6358_SLED_CLKDIV_4;
++ break;
++ case 2:
++ val |= BCM6358_SLED_CLKDIV_2;
++ break;
++ default:
++ val |= BCM6358_SLED_CLKDIV_1;
++ break;
++ }
++ bcm6358_led_write(mem + BCM6358_REG_CTRL, val);
++
++ for_each_available_child_of_node(np, child) {
++ int rc;
++ u32 reg;
++
++ if (of_property_read_u32(child, "reg", ®))
++ continue;
++
++ if (reg >= BCM6358_SLED_MAX_COUNT) {
++ dev_err(dev, "invalid LED (%u >= %d)\n", reg,
++ BCM6358_SLED_MAX_COUNT);
++ continue;
++ }
++
++ rc = bcm6358_led(dev, child, reg, mem, lock);
++ if (rc < 0)
++ return rc;
++ }
++
++ return 0;
++}
++
++static const struct of_device_id bcm6358_leds_of_match[] = {
++ { .compatible = "brcm,bcm6358-leds", },
++ { },
++};
++
++static struct platform_driver bcm6358_leds_driver = {
++ .probe = bcm6358_leds_probe,
++ .driver = {
++ .name = "leds-bcm6358",
++ .of_match_table = bcm6358_leds_of_match,
++ },
++};
++
++module_platform_driver(bcm6358_leds_driver);
++
++MODULE_AUTHOR("Álvaro Fernández Rojas <noltari at gmail.com>");
++MODULE_DESCRIPTION("LED driver for BCM6358 controllers");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:leds-bcm6358");
diff --git a/target/linux/brcm63xx/patches-4.1/022-leds-bcm6328-add-more-configuration-options-and-fix-.patch b/target/linux/brcm63xx/patches-4.1/022-leds-bcm6328-add-more-configuration-options-and-fix-.patch
new file mode 100644
index 0000000..0371122
--- /dev/null
+++ b/target/linux/brcm63xx/patches-4.1/022-leds-bcm6328-add-more-configuration-options-and-fix-.patch
@@ -0,0 +1,106 @@
+From 7a4f726f42d600f526155d6c66b8c4e5a0feb5f6 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari at gmail.com>
+Date: Thu, 30 Jul 2015 08:38:33 +0200
+Subject: [PATCH] leds-bcm6328: add more configuration options and fix default
+ state initialization
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: Álvaro Fernández Rojas <noltari at gmail.com>
+---
+ .../devicetree/bindings/leds/leds-bcm6328.txt | 8 +++++
+ drivers/leds/leds-bcm6328.c | 41 ++++++++++++++++------
+ 1 files changed, 30 insertions(+), 11 deletions(-)
+
+--- a/drivers/leds/leds-bcm6328.c
++++ b/drivers/leds/leds-bcm6328.c
+@@ -41,6 +41,11 @@
+ #define BCM6328_SERIAL_LED_SHIFT_DIR BIT(16)
+ #define BCM6328_LED_SHIFT_TEST BIT(30)
+ #define BCM6328_LED_TEST BIT(31)
++#define BCM6328_INIT_MASK (BCM6328_SERIAL_LED_EN | \
++ BCM6328_SERIAL_LED_MUX | \
++ BCM6328_SERIAL_LED_CLK_NPOL | \
++ BCM6328_SERIAL_LED_DATA_PPOL | \
++ BCM6328_SERIAL_LED_SHIFT_DIR)
+
+ #define BCM6328_LED_MODE_MASK 3
+ #define BCM6328_LED_MODE_OFF 0
+@@ -281,11 +286,10 @@ static int bcm6328_led(struct device *de
+ "linux,default-trigger",
+ NULL);
+
++ spin_lock_irqsave(lock, flags);
+ if (!of_property_read_string(nc, "default-state", &state)) {
+- spin_lock_irqsave(lock, flags);
+ if (!strcmp(state, "on")) {
+ led->cdev.brightness = LED_FULL;
+- bcm6328_led_mode(led, BCM6328_LED_MODE_ON);
+ } else if (!strcmp(state, "keep")) {
+ void __iomem *mode;
+ unsigned long val, shift;
+@@ -296,21 +300,28 @@ static int bcm6328_led(struct device *de
+ else
+ mode = mem + BCM6328_REG_MODE_LO;
+
+- val = bcm6328_led_read(mode) >> (shift % 16);
++ val = bcm6328_led_read(mode) >>
++ BCM6328_LED_SHIFT(shift % 16);
+ val &= BCM6328_LED_MODE_MASK;
+- if (val == BCM6328_LED_MODE_ON)
++ if ((led->active_low && val == BCM6328_LED_MODE_ON) ||
++ (!led->active_low && val == BCM6328_LED_MODE_OFF))
+ led->cdev.brightness = LED_FULL;
+- else {
++ else
+ led->cdev.brightness = LED_OFF;
+- bcm6328_led_mode(led, BCM6328_LED_MODE_OFF);
+- }
+ } else {
+ led->cdev.brightness = LED_OFF;
+- bcm6328_led_mode(led, BCM6328_LED_MODE_OFF);
+ }
+- spin_unlock_irqrestore(lock, flags);
++ } else {
++ led->cdev.brightness = LED_OFF;
+ }
+
++ if ((led->active_low && led->cdev.brightness == LED_FULL) ||
++ (!led->active_low && led->cdev.brightness == LED_OFF))
++ bcm6328_led_mode(led, BCM6328_LED_MODE_ON);
++ else
++ bcm6328_led_mode(led, BCM6328_LED_MODE_OFF);
++ spin_unlock_irqrestore(lock, flags);
++
+ led->cdev.brightness_set = bcm6328_led_set;
+ led->cdev.blink_set = bcm6328_blink_set;
+
+@@ -360,9 +371,17 @@ static int bcm6328_leds_probe(struct pla
+ bcm6328_led_write(mem + BCM6328_REG_LNKACTSEL_LO, 0);
+
+ val = bcm6328_led_read(mem + BCM6328_REG_INIT);
+- val &= ~BCM6328_SERIAL_LED_EN;
++ val &= ~(BCM6328_INIT_MASK);
+ if (of_property_read_bool(np, "brcm,serial-leds"))
+ val |= BCM6328_SERIAL_LED_EN;
++ if (of_property_read_bool(np, "brcm,serial-mux"))
++ val |= BCM6328_SERIAL_LED_MUX;
++ if (of_property_read_bool(np, "brcm,serial-clk-low"))
++ val |= BCM6328_SERIAL_LED_CLK_NPOL;
++ if (!of_property_read_bool(np, "brcm,serial-dat-low"))
++ val |= BCM6328_SERIAL_LED_DATA_PPOL;
++ if (!of_property_read_bool(np, "brcm,serial-shift-inv"))
++ val |= BCM6328_SERIAL_LED_SHIFT_DIR;
+ bcm6328_led_write(mem + BCM6328_REG_INIT, val);
+
+ for_each_available_child_of_node(np, child) {
+@@ -373,7 +392,7 @@ static int bcm6328_leds_probe(struct pla
+ continue;
+
+ if (reg >= BCM6328_LED_MAX_COUNT) {
+- dev_err(dev, "invalid LED (>= %d)\n",
++ dev_err(dev, "invalid LED (%u >= %d)\n", reg,
+ BCM6328_LED_MAX_COUNT);
+ continue;
+ }
--
1.9.1
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