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authorImre Kaloz <kaloz@openwrt.org>2008-11-28 12:29:54 +0000
committerImre Kaloz <kaloz@openwrt.org>2008-11-28 12:29:54 +0000
commit1bb5d1e139a9d43e4209169801cf7bb41be5a05f (patch)
treeb26aed314b16f330abf5dc41f7e351b102752e58 /target/linux/ixp4xx
parent47a35c8ffa76923855512de473fce839280aebca (diff)
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add latch driver modifications for the mi424wr
SVN-Revision: 13392
Diffstat (limited to 'target/linux/ixp4xx')
-rw-r--r--target/linux/ixp4xx/patches-2.6.27/295-latch_led_driver.patch31
1 files changed, 20 insertions, 11 deletions
diff --git a/target/linux/ixp4xx/patches-2.6.27/295-latch_led_driver.patch b/target/linux/ixp4xx/patches-2.6.27/295-latch_led_driver.patch
index c1f5059..2d02533 100644
--- a/target/linux/ixp4xx/patches-2.6.27/295-latch_led_driver.patch
+++ b/target/linux/ixp4xx/patches-2.6.27/295-latch_led_driver.patch
@@ -15,7 +15,7 @@
depends on LEDS_CLASS && MACH_ARMCORE
--- /dev/null
+++ b/drivers/leds/leds-latch.c
-@@ -0,0 +1,141 @@
+@@ -0,0 +1,149 @@
+/*
+ * LEDs driver for Memory Latched Devices
+ *
@@ -44,8 +44,19 @@
+ struct work_struct work;
+ u8 new_level;
+ u8 bit;
++ void (*set_led)(u8 bit, enum led_brightness value);
+};
+
++static void latch_set_led(u8 bit, enum led_brightness value)
++{
++ if (value == LED_OFF)
++ mem_keep |= (0x1 << bit);
++ else
++ mem_keep &= ~(0x1 << bit);
++
++ writeb(mem_keep, iobase);
++}
++
+static void latch_led_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
@@ -54,12 +65,7 @@
+
+ spin_lock(mem_lock);
+
-+ if (value == LED_OFF)
-+ mem_keep |= (0x1 << led_dat->bit);
-+ else
-+ mem_keep &= ~(0x1 << led_dat->bit);
-+
-+ writeb(mem_keep, iobase);
++ led_dat->set_led(led_dat->bit, value);
+
+ spin_unlock(mem_lock);
+}
@@ -79,9 +85,6 @@
+ if (!leds_data)
+ return -ENOMEM;
+
-+ iobase = ioremap_nocache(pdata->mem, 0x1000);
-+ writeb(0xFF, iobase);
-+
+ for (i = 0; i < pdata->num_leds; i++) {
+ cur_led = &pdata->leds[i];
+ led_dat = &leds_data[i];
@@ -91,6 +94,7 @@
+ led_dat->cdev.brightness_set = latch_led_set;
+ led_dat->cdev.brightness = LED_OFF;
+ led_dat->bit = cur_led->bit;
++ led_dat->set_led = pdata->set_led ? pdata->set_led : latch_set_led;
+
+ ret = led_classdev_register(&pdev->dev, &led_dat->cdev);
+ if (ret < 0) {
@@ -98,6 +102,10 @@
+ }
+ }
+
++ if (!pdata->set_led) {
++ iobase = ioremap_nocache(pdata->mem, 0x1000);
++ writeb(0xFF, iobase);
++ }
+ platform_set_drvdata(pdev, leds_data);
+
+ return 0;
@@ -169,7 +177,7 @@
obj-$(CONFIG_LEDS_HP6XX) += leds-hp6xx.o
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
-@@ -148,5 +148,18 @@ struct gpio_led_platform_data {
+@@ -148,5 +148,19 @@ struct gpio_led_platform_data {
unsigned long *delay_off);
};
@@ -184,6 +192,7 @@
+ int num_leds;
+ u32 mem;
+ struct latch_led *leds;
++ void (*set_led)(u8 bit, enum led_brightness value);
+};
+