* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/err.h>
-#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
#include <asm/hardware.h>
#include <asm/irq.h>
#include <asm/io.h>
-#include <asm/hardware/clock.h>
#include <asm/arch/regs-gpio.h>
#include <asm/arch/regs-iic.h>
#include <asm/arch/iic.h>
/* s3c24xx_i2c_xfer
*
* first port of call from the i2c bus code when an message needs
- * transfering across the i2c bus.
+ * transferring across the i2c bus.
*/
static int s3c24xx_i2c_xfer(struct i2c_adapter *adap,
/* i2c bus registration info */
static struct i2c_algorithm s3c24xx_i2c_algorithm = {
- .name = "S3C2410-I2C-Algorithm",
.master_xfer = s3c24xx_i2c_xfer,
.functionality = s3c24xx_i2c_func,
};
{
if (i2c->clk != NULL && !IS_ERR(i2c->clk)) {
clk_disable(i2c->clk);
- clk_unuse(i2c->clk);
clk_put(i2c->clk);
i2c->clk = NULL;
}
* called by the bus driver when a suitable device is found
*/
-static int s3c24xx_i2c_probe(struct device *dev)
+static int s3c24xx_i2c_probe(struct platform_device *pdev)
{
- struct platform_device *pdev = to_platform_device(dev);
struct s3c24xx_i2c *i2c = &s3c24xx_i2c;
struct resource *res;
int ret;
/* find the clock and enable it */
- i2c->dev = dev;
- i2c->clk = clk_get(dev, "i2c");
+ i2c->dev = &pdev->dev;
+ i2c->clk = clk_get(&pdev->dev, "i2c");
if (IS_ERR(i2c->clk)) {
- dev_err(dev, "cannot get clock\n");
+ dev_err(&pdev->dev, "cannot get clock\n");
ret = -ENOENT;
goto out;
}
- dev_dbg(dev, "clock source %p\n", i2c->clk);
+ dev_dbg(&pdev->dev, "clock source %p\n", i2c->clk);
- clk_use(i2c->clk);
clk_enable(i2c->clk);
/* map the registers */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res == NULL) {
- dev_err(dev, "cannot find IO resource\n");
+ dev_err(&pdev->dev, "cannot find IO resource\n");
ret = -ENOENT;
goto out;
}
pdev->name);
if (i2c->ioarea == NULL) {
- dev_err(dev, "cannot request IO\n");
+ dev_err(&pdev->dev, "cannot request IO\n");
ret = -ENXIO;
goto out;
}
i2c->regs = ioremap(res->start, (res->end-res->start)+1);
if (i2c->regs == NULL) {
- dev_err(dev, "cannot map IO\n");
+ dev_err(&pdev->dev, "cannot map IO\n");
ret = -ENXIO;
goto out;
}
- dev_dbg(dev, "registers %p (%p, %p)\n", i2c->regs, i2c->ioarea, res);
+ dev_dbg(&pdev->dev, "registers %p (%p, %p)\n", i2c->regs, i2c->ioarea, res);
/* setup info block for the i2c core */
i2c->adap.algo_data = i2c;
- i2c->adap.dev.parent = dev;
+ i2c->adap.dev.parent = &pdev->dev;
/* initialise the i2c controller */
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (res == NULL) {
- dev_err(dev, "cannot find IRQ\n");
+ dev_err(&pdev->dev, "cannot find IRQ\n");
ret = -ENOENT;
goto out;
}
pdev->name, i2c);
if (ret != 0) {
- dev_err(dev, "cannot claim IRQ\n");
+ dev_err(&pdev->dev, "cannot claim IRQ\n");
goto out;
}
i2c->irq = res;
- dev_dbg(dev, "irq resource %p (%ld)\n", res, res->start);
+ dev_dbg(&pdev->dev, "irq resource %p (%ld)\n", res, res->start);
ret = i2c_add_adapter(&i2c->adap);
if (ret < 0) {
- dev_err(dev, "failed to add bus to i2c core\n");
+ dev_err(&pdev->dev, "failed to add bus to i2c core\n");
goto out;
}
- dev_set_drvdata(dev, i2c);
+ platform_set_drvdata(pdev, i2c);
- dev_info(dev, "%s: S3C I2C adapter\n", i2c->adap.dev.bus_id);
+ dev_info(&pdev->dev, "%s: S3C I2C adapter\n", i2c->adap.dev.bus_id);
out:
if (ret < 0)
* called when device is removed from the bus
*/
-static int s3c24xx_i2c_remove(struct device *dev)
+static int s3c24xx_i2c_remove(struct platform_device *pdev)
{
- struct s3c24xx_i2c *i2c = dev_get_drvdata(dev);
+ struct s3c24xx_i2c *i2c = platform_get_drvdata(pdev);
if (i2c != NULL) {
s3c24xx_i2c_free(i2c);
- dev_set_drvdata(dev, NULL);
+ platform_set_drvdata(pdev, NULL);
}
return 0;
}
#ifdef CONFIG_PM
-static int s3c24xx_i2c_resume(struct device *dev, u32 level)
+static int s3c24xx_i2c_resume(struct platform_device *dev)
{
- struct s3c24xx_i2c *i2c = dev_get_drvdata(dev);
-
- if (i2c != NULL && level == RESUME_ENABLE) {
- dev_dbg(dev, "resume: level %d\n", level);
+ struct s3c24xx_i2c *i2c = platform_get_drvdata(dev);
+
+ if (i2c != NULL)
s3c24xx_i2c_init(i2c);
- }
return 0;
}
/* device driver for platform bus bits */
-static struct device_driver s3c2410_i2c_driver = {
- .name = "s3c2410-i2c",
- .bus = &platform_bus_type,
+static struct platform_driver s3c2410_i2c_driver = {
.probe = s3c24xx_i2c_probe,
.remove = s3c24xx_i2c_remove,
.resume = s3c24xx_i2c_resume,
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "s3c2410-i2c",
+ },
};
-static struct device_driver s3c2440_i2c_driver = {
- .name = "s3c2440-i2c",
- .bus = &platform_bus_type,
+static struct platform_driver s3c2440_i2c_driver = {
.probe = s3c24xx_i2c_probe,
.remove = s3c24xx_i2c_remove,
.resume = s3c24xx_i2c_resume,
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "s3c2440-i2c",
+ },
};
static int __init i2c_adap_s3c_init(void)
{
int ret;
- ret = driver_register(&s3c2410_i2c_driver);
- if (ret == 0)
- ret = driver_register(&s3c2440_i2c_driver);
+ ret = platform_driver_register(&s3c2410_i2c_driver);
+ if (ret == 0) {
+ ret = platform_driver_register(&s3c2440_i2c_driver);
+ if (ret)
+ platform_driver_unregister(&s3c2410_i2c_driver);
+ }
return ret;
}
static void __exit i2c_adap_s3c_exit(void)
{
- driver_unregister(&s3c2410_i2c_driver);
- driver_unregister(&s3c2440_i2c_driver);
+ platform_driver_unregister(&s3c2410_i2c_driver);
+ platform_driver_unregister(&s3c2440_i2c_driver);
}
module_init(i2c_adap_s3c_init);
git://git.onelab.eu / linux-2.6.git / blobdiff