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move the latch-led driver into a separated patch

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SVN-Revision: 11252
This commit is contained in:
Gabor Juhos 2008-05-24 07:14:13 +00:00
parent b481c0344e
commit 7bc56a7c0e
2 changed files with 211 additions and 205 deletions
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198
target/linux/ixp4xx/patches-2.6.25/295-latch_led_driver.patch Normal file
View file

@ -0,0 +1,198 @@
Index: linux-2.6.25.4/drivers/leds/Kconfig
===================================================================
--- linux-2.6.25.4.orig/drivers/leds/Kconfig
+++ linux-2.6.25.4/drivers/leds/Kconfig
@@ -125,6 +125,12 @@ config LEDS_GPIO
outputs. To be useful the particular board must have LEDs
and they must be connected to the GPIO lines.
+config LEDS_LATCH
+ tristate "LED Support for Memory Latched LEDs"
+ depends on LEDS_CLASS
+ help
+ -- To Do --
+
config LEDS_CM_X270
tristate "LED Support for the CM-X270 LEDs"
depends on LEDS_CLASS && MACH_ARMCORE
Index: linux-2.6.25.4/drivers/leds/leds-latch.c
===================================================================
--- /dev/null
+++ linux-2.6.25.4/drivers/leds/leds-latch.c
@@ -0,0 +1,141 @@
+/*
+ * LEDs driver for Memory Latched Devices
+ *
+ * Copyright (C) 2008 Gateworks Corp.
+ * Chris Lang <clang@gateworks.com>
+ *
+ * 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/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/workqueue.h>
+#include <asm/io.h>
+#include <linux/spinlock.h>
+
+static unsigned int mem_keep = 0xFF;
+static spinlock_t mem_lock;
+static unsigned char *iobase;
+
+struct latch_led_data {
+ struct led_classdev cdev;
+ struct work_struct work;
+ u8 new_level;
+ u8 bit;
+};
+
+static void latch_led_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ struct latch_led_data *led_dat =
+ container_of(led_cdev, struct latch_led_data, cdev);
+
+ 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);
+
+ spin_unlock(mem_lock);
+}
+
+static int latch_led_probe(struct platform_device *pdev)
+{
+ struct latch_led_platform_data *pdata = pdev->dev.platform_data;
+ struct latch_led *cur_led;
+ struct latch_led_data *leds_data, *led_dat;
+ int i, ret = 0;
+
+ if (!pdata)
+ return -EBUSY;
+
+ leds_data = kzalloc(sizeof(struct latch_led_data) * pdata->num_leds,
+ GFP_KERNEL);
+ 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];
+
+ led_dat->cdev.name = cur_led->name;
+ led_dat->cdev.default_trigger = cur_led->default_trigger;
+ led_dat->cdev.brightness_set = latch_led_set;
+ led_dat->cdev.brightness = LED_OFF;
+ led_dat->bit = cur_led->bit;
+
+ ret = led_classdev_register(&pdev->dev, &led_dat->cdev);
+ if (ret < 0) {
+ goto err;
+ }
+ }
+
+ platform_set_drvdata(pdev, leds_data);
+
+ return 0;
+
+err:
+ if (i > 0) {
+ for (i = i - 1; i >= 0; i--) {
+ led_classdev_unregister(&leds_data[i].cdev);
+ }
+ }
+
+ kfree(leds_data);
+
+ return ret;
+}
+
+static int __devexit latch_led_remove(struct platform_device *pdev)
+{
+ int i;
+ struct latch_led_platform_data *pdata = pdev->dev.platform_data;
+ struct latch_led_data *leds_data;
+
+ leds_data = platform_get_drvdata(pdev);
+
+ for (i = 0; i < pdata->num_leds; i++) {
+ led_classdev_unregister(&leds_data[i].cdev);
+ cancel_work_sync(&leds_data[i].work);
+ }
+
+ kfree(leds_data);
+
+ return 0;
+}
+
+static struct platform_driver latch_led_driver = {
+ .probe = latch_led_probe,
+ .remove = __devexit_p(latch_led_remove),
+ .driver = {
+ .name = "leds-latch",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init latch_led_init(void)
+{
+ return platform_driver_register(&latch_led_driver);
+}
+
+static void __exit latch_led_exit(void)
+{
+ platform_driver_unregister(&latch_led_driver);
+}
+
+module_init(latch_led_init);
+module_exit(latch_led_exit);
+
+MODULE_AUTHOR("Chris Lang <clang@gateworks.com>");
+MODULE_DESCRIPTION("Latch LED driver");
+MODULE_LICENSE("GPL");
Index: linux-2.6.25.4/drivers/leds/Makefile
===================================================================
--- linux-2.6.25.4.orig/drivers/leds/Makefile
+++ linux-2.6.25.4/drivers/leds/Makefile
@@ -19,6 +19,7 @@ obj-$(CONFIG_LEDS_H1940) += leds-h1940.
obj-$(CONFIG_LEDS_COBALT_QUBE) += leds-cobalt-qube.o
obj-$(CONFIG_LEDS_COBALT_RAQ) += leds-cobalt-raq.o
obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o
+obj-$(CONFIG_LEDS_LATCH) += leds-latch.o
obj-$(CONFIG_LEDS_CM_X270) += leds-cm-x270.o
obj-$(CONFIG_LEDS_CLEVO_MAIL) += leds-clevo-mail.o
obj-$(CONFIG_LEDS_HP6XX) += leds-hp6xx.o
Index: linux-2.6.25.4/include/linux/leds.h
===================================================================
--- linux-2.6.25.4.orig/include/linux/leds.h
+++ linux-2.6.25.4/include/linux/leds.h
@@ -136,5 +136,18 @@ struct gpio_led_platform_data {
struct gpio_led *leds;
};
+/* For the leds-latch driver */
+struct latch_led {
+ const char *name;
+ char *default_trigger;
+ unsigned bit;
+};
+
+struct latch_led_platform_data {
+ int num_leds;
+ u32 mem;
+ struct latch_led *leds;
+};
+
#endif /* __LINUX_LEDS_H_INCLUDED */

218
target/linux/ixp4xx/patches-2.6.25/301-avila_led.patch
View file

@ -1,6 +1,7 @@
diff -ruN clean/linux-2.6.25.4/arch/arm/mach-ixp4xx/avila-setup.c linux-2.6.25.4/arch/arm/mach-ixp4xx/avila-setup.c
--- clean/linux-2.6.25.4/arch/arm/mach-ixp4xx/avila-setup.c 2008-05-20 09:18:21.000000000 -0700
+++ linux-2.6.25.4/arch/arm/mach-ixp4xx/avila-setup.c 2008-05-20 09:31:55.000000000 -0700
Index: linux-2.6.25.4/arch/arm/mach-ixp4xx/avila-setup.c
===================================================================
--- linux-2.6.25.4.orig/arch/arm/mach-ixp4xx/avila-setup.c
+++ linux-2.6.25.4/arch/arm/mach-ixp4xx/avila-setup.c
@@ -26,6 +26,7 @@
# include <linux/eeprom.h>
#endif
@ -9,7 +10,7 @@ diff -ruN clean/linux-2.6.25.4/arch/arm/mach-ixp4xx/avila-setup.c linux-2.6.25.4
#include <linux/i2c-gpio.h>
#include <asm/types.h>
@@ -172,6 +173,72 @@
@@ -172,6 +173,72 @@ static struct platform_device avila_npec
.dev.platform_data = &avila_npec_data,
};
@ -82,7 +83,7 @@ diff -ruN clean/linux-2.6.25.4/arch/arm/mach-ixp4xx/avila-setup.c linux-2.6.25.4
static struct platform_device *avila_devices[] __initdata = {
&avila_i2c_gpio,
&avila_flash,
@@ -182,6 +249,8 @@
@@ -182,6 +249,8 @@ static void __init avila_gw23xx_setup(vo
{
platform_device_register(&avila_npeb_device);
platform_device_register(&avila_npec_device);
@ -91,7 +92,7 @@ diff -ruN clean/linux-2.6.25.4/arch/arm/mach-ixp4xx/avila-setup.c linux-2.6.25.4
}
#ifdef CONFIG_SENSORS_EEPROM
@@ -189,6 +258,8 @@
@@ -189,6 +258,8 @@ static void __init avila_gw2342_setup(vo
{
platform_device_register(&avila_npeb_device);
platform_device_register(&avila_npec_device);
@ -100,7 +101,7 @@ diff -ruN clean/linux-2.6.25.4/arch/arm/mach-ixp4xx/avila-setup.c linux-2.6.25.4
}
static void __init avila_gw2345_setup(void)
@@ -199,22 +270,30 @@
@@ -199,22 +270,30 @@ static void __init avila_gw2345_setup(vo
avila_npec_data.phy = 5; /* port 5 of the KS8995 switch */
platform_device_register(&avila_npec_device);
@ -131,7 +132,7 @@ diff -ruN clean/linux-2.6.25.4/arch/arm/mach-ixp4xx/avila-setup.c linux-2.6.25.4
}
static void __init avila_gw2355_setup(void)
@@ -225,11 +304,29 @@
@@ -225,11 +304,29 @@ static void __init avila_gw2355_setup(vo
avila_npec_data.phy = 16;
platform_device_register(&avila_npec_device);
@ -161,181 +162,10 @@ diff -ruN clean/linux-2.6.25.4/arch/arm/mach-ixp4xx/avila-setup.c linux-2.6.25.4
}
static struct avila_board_info avila_boards[] __initdata = {
diff -ruN clean/linux-2.6.25.4/drivers/leds/Kconfig linux-2.6.25.4/drivers/leds/Kconfig
--- clean/linux-2.6.25.4/drivers/leds/Kconfig 2008-05-15 08:00:12.000000000 -0700
+++ linux-2.6.25.4/drivers/leds/Kconfig 2008-05-20 09:25:15.000000000 -0700
@@ -113,6 +113,12 @@
outputs. To be useful the particular board must have LEDs
and they must be connected to the GPIO lines.
+config LEDS_LATCH
+ tristate "LED Support for Memory Latched LEDs"
+ depends on LEDS_CLASS
+ help
+ -- To Do --
+
config LEDS_CM_X270
tristate "LED Support for the CM-X270 LEDs"
depends on LEDS_CLASS && MACH_ARMCORE
diff -ruN clean/linux-2.6.25.4/drivers/leds/leds-latch.c linux-2.6.25.4/drivers/leds/leds-latch.c
--- clean/linux-2.6.25.4/drivers/leds/leds-latch.c 1969-12-31 16:00:00.000000000 -0800
+++ linux-2.6.25.4/drivers/leds/leds-latch.c 2008-04-30 14:03:21.000000000 -0700
@@ -0,0 +1,141 @@
+/*
+ * LEDs driver for Memory Latched Devices
+ *
+ * Copyright (C) 2008 Gateworks Corp.
+ * Chris Lang <clang@gateworks.com>
+ *
+ * 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/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/workqueue.h>
+#include <asm/io.h>
+#include <linux/spinlock.h>
+
+static unsigned int mem_keep = 0xFF;
+static spinlock_t mem_lock;
+static unsigned char *iobase;
+
+struct latch_led_data {
+ struct led_classdev cdev;
+ struct work_struct work;
+ u8 new_level;
+ u8 bit;
+};
+
+static void latch_led_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ struct latch_led_data *led_dat =
+ container_of(led_cdev, struct latch_led_data, cdev);
+
+ 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);
+
+ spin_unlock(mem_lock);
+}
+
+static int latch_led_probe(struct platform_device *pdev)
+{
+ struct latch_led_platform_data *pdata = pdev->dev.platform_data;
+ struct latch_led *cur_led;
+ struct latch_led_data *leds_data, *led_dat;
+ int i, ret = 0;
+
+ if (!pdata)
+ return -EBUSY;
+
+ leds_data = kzalloc(sizeof(struct latch_led_data) * pdata->num_leds,
+ GFP_KERNEL);
+ 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];
+
+ led_dat->cdev.name = cur_led->name;
+ led_dat->cdev.default_trigger = cur_led->default_trigger;
+ led_dat->cdev.brightness_set = latch_led_set;
+ led_dat->cdev.brightness = LED_OFF;
+ led_dat->bit = cur_led->bit;
+
+ ret = led_classdev_register(&pdev->dev, &led_dat->cdev);
+ if (ret < 0) {
+ goto err;
+ }
+ }
+
+ platform_set_drvdata(pdev, leds_data);
+
+ return 0;
+
+err:
+ if (i > 0) {
+ for (i = i - 1; i >= 0; i--) {
+ led_classdev_unregister(&leds_data[i].cdev);
+ }
+ }
+
+ kfree(leds_data);
+
+ return ret;
+}
+
+static int __devexit latch_led_remove(struct platform_device *pdev)
+{
+ int i;
+ struct latch_led_platform_data *pdata = pdev->dev.platform_data;
+ struct latch_led_data *leds_data;
+
+ leds_data = platform_get_drvdata(pdev);
+
+ for (i = 0; i < pdata->num_leds; i++) {
+ led_classdev_unregister(&leds_data[i].cdev);
+ cancel_work_sync(&leds_data[i].work);
+ }
+
+ kfree(leds_data);
+
+ return 0;
+}
+
+static struct platform_driver latch_led_driver = {
+ .probe = latch_led_probe,
+ .remove = __devexit_p(latch_led_remove),
+ .driver = {
+ .name = "leds-latch",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init latch_led_init(void)
+{
+ return platform_driver_register(&latch_led_driver);
+}
+
+static void __exit latch_led_exit(void)
+{
+ platform_driver_unregister(&latch_led_driver);
+}
+
+module_init(latch_led_init);
+module_exit(latch_led_exit);
+
+MODULE_AUTHOR("Chris Lang <clang@gateworks.com>");
+MODULE_DESCRIPTION("Latch LED driver");
+MODULE_LICENSE("GPL");
diff -ruN clean/linux-2.6.25.4/drivers/leds/Makefile linux-2.6.25.4/drivers/leds/Makefile
--- clean/linux-2.6.25.4/drivers/leds/Makefile 2008-05-15 08:00:12.000000000 -0700
+++ linux-2.6.25.4/drivers/leds/Makefile 2008-05-20 09:26:14.000000000 -0700
@@ -18,6 +18,7 @@
obj-$(CONFIG_LEDS_COBALT_QUBE) += leds-cobalt-qube.o
obj-$(CONFIG_LEDS_COBALT_RAQ) += leds-cobalt-raq.o
obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o
+obj-$(CONFIG_LEDS_LATCH) += leds-latch.o
obj-$(CONFIG_LEDS_CM_X270) += leds-cm-x270.o
obj-$(CONFIG_LEDS_CLEVO_MAIL) += leds-clevo-mail.o
obj-$(CONFIG_LEDS_HP6XX) += leds-hp6xx.o
diff -ruN clean/linux-2.6.25.4/include/asm-arm/arch-ixp4xx/avila.h linux-2.6.25.4/include/asm-arm/arch-ixp4xx/avila.h
--- clean/linux-2.6.25.4/include/asm-arm/arch-ixp4xx/avila.h 2008-05-15 08:00:12.000000000 -0700
+++ linux-2.6.25.4/include/asm-arm/arch-ixp4xx/avila.h 2008-05-20 09:22:28.000000000 -0700
Index: linux-2.6.25.4/include/asm-arm/arch-ixp4xx/avila.h
===================================================================
--- linux-2.6.25.4.orig/include/asm-arm/arch-ixp4xx/avila.h
+++ linux-2.6.25.4/include/asm-arm/arch-ixp4xx/avila.h
@@ -36,4 +36,6 @@
#define AVILA_PCI_INTC_PIN 9
#define AVILA_PCI_INTD_PIN 8
@ -344,25 +174,3 @@ diff -ruN clean/linux-2.6.25.4/include/asm-arm/arch-ixp4xx/avila.h linux-2.6.25.
+/* User LEDs */
+#define AVILA_GW23XX_LED_USER_GPIO 3
+#define AVILA_GW23X7_LED_USER_GPIO 4
diff -ruN clean/linux-2.6.25.4/include/linux/leds.h linux-2.6.25.4/include/linux/leds.h
--- clean/linux-2.6.25.4/include/linux/leds.h 2008-05-15 08:00:12.000000000 -0700
+++ linux-2.6.25.4/include/linux/leds.h 2008-05-20 09:32:35.000000000 -0700
@@ -136,5 +136,18 @@
struct gpio_led *leds;
};
+/* For the leds-latch driver */
+struct latch_led {
+ const char *name;
+ char *default_trigger;
+ unsigned bit;
+};
+
+struct latch_led_platform_data {
+ int num_leds;
+ u32 mem;
+ struct latch_led *leds;
+};
+
#endif /* __LINUX_LEDS_H_INCLUDED */