W: http://www.amd.com/us-en/ConnectivitySolutions/TechnicalResources/0,,50_2334_2452_11363,00.html
S: Supported
+AMD IOMMU (AMD-VI)
+P: Joerg Roedel
+M: joerg.roedel@amd.com
+L: iommu@lists.linux-foundation.org
+S: Supported
+
AMS (Apple Motion Sensor) DRIVER
P: Stelian Pop
M: stelian@popies.net
L: linux-kernel@vger.kernel.org
S: Maintained
+ FREESCALE I2C CPM DRIVER
+ P: Jochen Friedrich
+ M: jochen@scram.de
+ L: linuxppc-dev@ozlabs.org
+ L: i2c@lm-sensors.org
+ S: Maintained
+
FREESCALE SOC FS_ENET DRIVER
P: Pantelis Antoniou
M: pantelis.antoniou@gmail.com
#include <asm/io.h>
#include <asm/arch/i2c.h>
#include <asm/arch/pxa-regs.h>
-#include <asm/arch/pxa2xx-gpio.h>
struct pxa_i2c {
spinlock_t lock;
.functionality = i2c_pxa_functionality,
};
-static void i2c_pxa_enable(struct platform_device *dev)
-{
- if (cpu_is_pxa27x()) {
- switch (dev->id) {
- case 0:
- pxa_gpio_mode(GPIO117_I2CSCL_MD);
- pxa_gpio_mode(GPIO118_I2CSDA_MD);
- break;
- case 1:
- local_irq_disable();
- PCFR |= PCFR_PI2CEN;
- local_irq_enable();
- break;
- }
- }
-}
-
-static void i2c_pxa_disable(struct platform_device *dev)
-{
- if (cpu_is_pxa27x() && dev->id == 1) {
- local_irq_disable();
- PCFR &= ~PCFR_PI2CEN;
- local_irq_enable();
- }
-}
-
#define res_len(r) ((r)->end - (r)->start + 1)
static int i2c_pxa_probe(struct platform_device *dev)
{
#endif
clk_enable(i2c->clk);
- i2c_pxa_enable(dev);
if (plat) {
i2c->adap.class = plat->class;
free_irq(irq, i2c);
ereqirq:
clk_disable(i2c->clk);
- i2c_pxa_disable(dev);
iounmap(i2c->reg_base);
eremap:
clk_put(i2c->clk);
clk_disable(i2c->clk);
clk_put(i2c->clk);
- i2c_pxa_disable(dev);
iounmap(i2c->reg_base);
release_mem_region(i2c->iobase, i2c->iosize);
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:pxa2xx-i2c");
- module_init(i2c_adap_pxa_init);
+ subsys_initcall(i2c_adap_pxa_init);
module_exit(i2c_adap_pxa_exit);
#include <linux/list.h>
#include <linux/i2c.h>
#include <linux/i2c-dev.h>
+#include <linux/smp_lock.h>
#include <asm/uaccess.h>
static struct i2c_driver i2cdev_driver;
return res;
}
- static int i2cdev_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
+ static long i2cdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
struct i2c_client *client = (struct i2c_client *)file->private_data;
unsigned long funcs;
struct i2c_client *client;
struct i2c_adapter *adap;
struct i2c_dev *i2c_dev;
+ int ret = 0;
+ lock_kernel();
i2c_dev = i2c_dev_get_by_minor(minor);
- if (!i2c_dev)
- return -ENODEV;
+ if (!i2c_dev) {
+ ret = -ENODEV;
+ goto out;
+ }
adap = i2c_get_adapter(i2c_dev->adap->nr);
- if (!adap)
- return -ENODEV;
+ if (!adap) {
+ ret = -ENODEV;
+ goto out;
+ }
/* This creates an anonymous i2c_client, which may later be
* pointed to some address using I2C_SLAVE or I2C_SLAVE_FORCE.
client = kzalloc(sizeof(*client), GFP_KERNEL);
if (!client) {
i2c_put_adapter(adap);
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto out;
}
snprintf(client->name, I2C_NAME_SIZE, "i2c-dev %d", adap->nr);
client->driver = &i2cdev_driver;
client->adapter = adap;
file->private_data = client;
- return 0;
+out:
+ unlock_kernel();
+ return ret;
}
static int i2cdev_release(struct inode *inode, struct file *file)
.llseek = no_llseek,
.read = i2cdev_read,
.write = i2cdev_write,
- .ioctl = i2cdev_ioctl,
+ .unlocked_ioctl = i2cdev_ioctl,
.open = i2cdev_open,
.release = i2cdev_release,
};
return 0;
}
- static int i2cdev_detach_client(struct i2c_client *client)
- {
- return 0;
- }
-
static struct i2c_driver i2cdev_driver = {
.driver = {
.name = "dev_driver",
},
- .id = I2C_DRIVERID_I2CDEV,
.attach_adapter = i2cdev_attach_adapter,
.detach_adapter = i2cdev_detach_adapter,
- .detach_client = i2cdev_detach_client,
};
/* ------------------------------------------------------------------------- */