mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-14 03:26:15 +02:00
b74489d910
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23237 3c298f89-4303-0410-b956-a3cf2f4a3e73
103 lines
2.8 KiB
Diff
103 lines
2.8 KiB
Diff
--- 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);
|