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openwrt/target/linux/lantiq/patches/150-dev-leds-gpio.patch

91 lines
2.2 KiB
Diff

--- /dev/null
+++ b/arch/mips/include/asm/mach-lantiq/dev-leds-gpio.h
@@ -0,0 +1,21 @@
+/*
+ * Lantiq GPIO LED device support
+ *
+ * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#ifndef _LANTIQ_DEV_LEDS_GPIO_H
+#define _LANTIQ_DEV_LEDS_GPIO_H
+
+#include <linux/leds.h>
+
+void lq_add_device_leds_gpio(int id,
+ unsigned num_leds,
+ struct gpio_led *leds) __init;
+
+#endif /* _LANTIQ_DEV_LEDS_GPIO_H */
--- /dev/null
+++ b/arch/mips/lantiq/dev-leds-gpio.c
@@ -0,0 +1,57 @@
+/*
+ * Lantiq GPIO LED device support
+ *
+ * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * Parts of this file are based on Atheros' 2.6.15 BSP
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+
+#include "dev-leds-gpio.h"
+
+void __init lq_add_device_leds_gpio(int id, unsigned num_leds,
+ struct gpio_led *leds)
+{
+ struct platform_device *pdev;
+ struct gpio_led_platform_data pdata;
+ struct gpio_led *p;
+ int err;
+
+ p = kmalloc(num_leds * sizeof(*p), GFP_KERNEL);
+ if (!p)
+ return;
+
+ memcpy(p, leds, num_leds * sizeof(*p));
+
+ pdev = platform_device_alloc("leds-gpio", id);
+ if (!pdev)
+ goto err_free_leds;
+
+ memset(&pdata, 0, sizeof(pdata));
+ pdata.num_leds = num_leds;
+ pdata.leds = p;
+
+ err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
+ if (err)
+ goto err_put_pdev;
+
+ err = platform_device_add(pdev);
+ if (err)
+ goto err_put_pdev;
+
+ return;
+
+err_put_pdev:
+ platform_device_put(pdev);
+
+err_free_leds:
+ kfree(p);
+}
--- a/arch/mips/lantiq/Makefile
+++ b/arch/mips/lantiq/Makefile
@@ -1,2 +1,2 @@
-obj-y := irq.o setup.o clk.o prom.o
+obj-y := dev-leds-gpio.o irq.o setup.o clk.o prom.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o