openwrt/target/linux/generic-2.6/patches-2.6.33/924-cs5535_gpio.patch

--- a/drivers/char/cs5535_gpio.c
+++ b/drivers/char/cs5535_gpio.c
@@ -15,6 +15,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/cdev.h>
+#include <linux/device.h>
 #include <linux/ioport.h>
 #include <linux/pci.h>
 
@@ -48,6 +49,7 @@ static struct pci_device_id divil_pci[]
 MODULE_DEVICE_TABLE(pci, divil_pci);
 
 static struct cdev cs5535_gpio_cdev;
+static struct class *cs5535_gpio_class;
 
 /* reserve 32 entries even though some aren't usable */
 #define CS5535_GPIO_COUNT	32
@@ -66,9 +68,14 @@ static struct gpio_regmap rm[] =
 	{ 0x30, 0x00, '1', '0' },	/* GPIOx_READ_BACK / GPIOx_OUT_VAL */
 	{ 0x20, 0x20, 'I', 'i' },	/* GPIOx_IN_EN */
 	{ 0x04, 0x04, 'O', 'o' },	/* GPIOx_OUT_EN */
+	{ 0x10, 0x10, 'A', 'a' },	/* GPIOx_OUT_AUX1_SEL */
+	{ 0x14, 0x14, 'B', 'b' },	/* GPIOx_OUT_AUX2_SEL */
 	{ 0x08, 0x08, 't', 'T' },	/* GPIOx_OUT_OD_EN */
 	{ 0x18, 0x18, 'P', 'p' },	/* GPIOx_OUT_PU_EN */
 	{ 0x1c, 0x1c, 'D', 'd' },	/* GPIOx_OUT_PD_EN */
+	{ 0x24, 0x24, 'N', 'n' },	/* GPIOx_IN_INV_EN */
+	{ 0x0c, 0x0c, 'X', 'x' },	/* GPIOx_OUT_INV_EN */
+	{ 0x00, 0x00, 'H', 'L' },	/* GPIOx_OUT_VAL */
 };
 
 
@@ -176,7 +183,7 @@ static int __init cs5535_gpio_init(void)
 {
 	dev_t	dev_id;
 	u32	low, hi;
-	int	retval;
+	int	retval, i;
 
 	if (pci_dev_present(divil_pci) == 0) {
 		printk(KERN_WARNING NAME ": DIVIL not found\n");
@@ -231,23 +238,54 @@ static int __init cs5535_gpio_init(void)
 		major = MAJOR(dev_id);
 	}
 
-	if (retval) {
-		release_region(gpio_base, CS5535_GPIO_SIZE);
-		return -1;
-	}
+	if (retval)
+		goto error;
 
 	printk(KERN_DEBUG NAME ": base=%#x mask=%#lx major=%d\n",
 	       gpio_base, mask, major);
 
 	cdev_init(&cs5535_gpio_cdev, &cs5535_gpio_fops);
-	cdev_add(&cs5535_gpio_cdev, dev_id, CS5535_GPIO_COUNT);
+	retval = cdev_add(&cs5535_gpio_cdev, dev_id, CS5535_GPIO_COUNT);
+	if (retval) {
+		kobject_put(&cs5535_gpio_cdev.kobj);
+		goto error_region;
+	}
+
+	cs5535_gpio_class = class_create(THIS_MODULE, "cs5535_gpio");
+	if (IS_ERR(cs5535_gpio_class)) {
+		printk(KERN_ERR "Error creating cs5535_gpio class\n");
+		cdev_del(&cs5535_gpio_cdev);
+		retval = PTR_ERR(cs5535_gpio_class);
+		goto error_region;
+	}
+
+	for (i = 0; i < CS5535_GPIO_COUNT; i++) {
+		if (mask & (1<<i)) {
+			device_create(cs5535_gpio_class, NULL, MKDEV(major, i), NULL, "cs5535_gpio%d", i);
+		}
+	}
 
 	return 0;
+
+error_region:
+	unregister_chrdev_region(dev_id, CS5535_GPIO_COUNT);
+error:
+	release_region(gpio_base, CS5535_GPIO_SIZE);
+	return retval;
 }
 
 static void __exit cs5535_gpio_cleanup(void)
 {
 	dev_t dev_id = MKDEV(major, 0);
+	int i;
+
+	for (i = 0; i < CS5535_GPIO_COUNT; i++) {
+		if (mask & (1<<i)) {
+			device_destroy(cs5535_gpio_class, MKDEV(major, i));
+		}
+	}
+
+	class_destroy(cs5535_gpio_class);
 
 	cdev_del(&cs5535_gpio_cdev);
 	unregister_chrdev_region(dev_id, CS5535_GPIO_COUNT);