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authorOlof Johansson <olof@lixom.net>2012-11-26 01:04:39 -0800
committerOlof Johansson <olof@lixom.net>2012-11-26 01:04:39 -0800
commit0d5c2e21d3151f13812bc562544f5eda9c9c9abc (patch)
treef0db9a6df5a29a7daaa25cf3bd942a496cf637e6 /drivers
parent48b71e3ac138469e83d044db22020424aaa44753 (diff)
parentf17073a3aec601cb9aba6d8c1c6dbc8c6a919c07 (diff)
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Merge tag 'orion_boards_for_3.8' of git://git.infradead.org/users/jcooper/linux into next/boards
From Jason Cooper: orion boards for v3.8 - mach-orion5x/ joins the dark side! (devicetree) - Lacie Network Space family - Lacie Ethernet Disk mini v2 - USI TopKick - ZyXEL NSA310 - MPL CEC4 - Plat'Home OpenBlocks A6 (kirkwood, AX3-4 is armada xp) * tag 'orion_boards_for_3.8' of git://git.infradead.org/users/jcooper/linux: ARM: kirkwood: Add Plat'Home OpenBlocks A6 support ARM: Dove: update defconfig ARM: Kirkwood: update defconfig for new boards arm: orion5x: add DT related options in defconfig arm: orion5x: convert 'LaCie Ethernet Disk mini v2' to Device Tree arm: orion5x: basic Device Tree support arm: orion5x: mechanical defconfig update ARM: kirkwood: Add support for the MPL CEC4 arm: kirkwood: add support for ZyXEL NSA310 ARM: Kirkwood: new board USI Topkick ARM: kirkwood: use gpio-fan DT binding on lsxl ARM: Kirkwood: add Netspace boards to defconfig ARM: kirkwood: DT board setup for Network Space Mini v2 ARM: kirkwood: DT board setup for Network Space Lite v2 ARM: kirkwood: DT board setup for Network Space v2 and parents leds: leds-ns2: add device tree binding ARM: Kirkwood: Enable the second I2C bus
Diffstat (limited to 'drivers')
-rw-r--r--drivers/leds/Kconfig4
-rw-r--r--drivers/leds/leds-ns2.c78
2 files changed, 78 insertions, 4 deletions
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index f508defc0d96..b58bc8a14b9c 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -379,7 +379,9 @@ config LEDS_NS2
tristate "LED support for Network Space v2 GPIO LEDs"
depends on LEDS_CLASS
depends on MACH_NETSPACE_V2 || MACH_INETSPACE_V2 || \
- MACH_NETSPACE_MAX_V2 || MACH_D2NET_V2
+ MACH_NETSPACE_MAX_V2 || MACH_D2NET_V2 || \
+ MACH_NETSPACE_V2_DT || MACH_INETSPACE_V2_DT || \
+ MACH_NETSPACE_MAX_V2_DT || MACH_NETSPACE_MINI_V2_DT
default y
help
This option enable support for the dual-GPIO LED found on the
diff --git a/drivers/leds/leds-ns2.c b/drivers/leds/leds-ns2.c
index d176ec83f5d9..d64cc2227fd9 100644
--- a/drivers/leds/leds-ns2.c
+++ b/drivers/leds/leds-ns2.c
@@ -30,6 +30,7 @@
#include <linux/leds.h>
#include <linux/module.h>
#include <linux/platform_data/leds-kirkwood-ns2.h>
+#include <linux/of_gpio.h>
/*
* The Network Space v2 dual-GPIO LED is wired to a CPLD and can blink in
@@ -263,6 +264,62 @@ static void delete_ns2_led(struct ns2_led_data *led_dat)
gpio_free(led_dat->slow);
}
+#ifdef CONFIG_OF_GPIO
+/*
+ * Translate OpenFirmware node properties into platform_data.
+ */
+static int __devinit
+ns2_leds_get_of_pdata(struct device *dev, struct ns2_led_platform_data *pdata)
+{
+ struct device_node *np = dev->of_node;
+ struct device_node *child;
+ struct ns2_led *leds;
+ int num_leds = 0;
+ int i = 0;
+
+ num_leds = of_get_child_count(np);
+ if (!num_leds)
+ return -ENODEV;
+
+ leds = devm_kzalloc(dev, num_leds * sizeof(struct ns2_led),
+ GFP_KERNEL);
+ if (!leds)
+ return -ENOMEM;
+
+ for_each_child_of_node(np, child) {
+ const char *string;
+ int ret;
+
+ ret = of_get_named_gpio(child, "cmd-gpio", 0);
+ if (ret < 0)
+ return ret;
+ leds[i].cmd = ret;
+ ret = of_get_named_gpio(child, "slow-gpio", 0);
+ if (ret < 0)
+ return ret;
+ leds[i].slow = ret;
+ ret = of_property_read_string(child, "label", &string);
+ leds[i].name = (ret == 0) ? string : child->name;
+ ret = of_property_read_string(child, "linux,default-trigger",
+ &string);
+ if (ret == 0)
+ leds[i].default_trigger = string;
+
+ i++;
+ }
+
+ pdata->leds = leds;
+ pdata->num_leds = num_leds;
+
+ return 0;
+}
+
+static const struct of_device_id of_ns2_leds_match[] = {
+ { .compatible = "lacie,ns2-leds", },
+ {},
+};
+#endif /* CONFIG_OF_GPIO */
+
static int __devinit ns2_led_probe(struct platform_device *pdev)
{
struct ns2_led_platform_data *pdata = pdev->dev.platform_data;
@@ -270,11 +327,25 @@ static int __devinit ns2_led_probe(struct platform_device *pdev)
int i;
int ret;
+#ifdef CONFIG_OF_GPIO
+ if (!pdata) {
+ pdata = devm_kzalloc(&pdev->dev,
+ sizeof(struct ns2_led_platform_data),
+ GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+
+ ret = ns2_leds_get_of_pdata(&pdev->dev, pdata);
+ if (ret)
+ return ret;
+ }
+#else
if (!pdata)
return -EINVAL;
+#endif /* CONFIG_OF_GPIO */
leds_data = devm_kzalloc(&pdev->dev, sizeof(struct ns2_led_data) *
- pdata->num_leds, GFP_KERNEL);
+ pdata->num_leds, GFP_KERNEL);
if (!leds_data)
return -ENOMEM;
@@ -312,8 +383,9 @@ static struct platform_driver ns2_led_driver = {
.probe = ns2_led_probe,
.remove = __devexit_p(ns2_led_remove),
.driver = {
- .name = "leds-ns2",
- .owner = THIS_MODULE,
+ .name = "leds-ns2",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(of_ns2_leds_match),
},
};