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Merge branch 'for-linus/i2c-32-rc6' of git://git.fluff.org/bjdooks/linux 

* 'for-linus/i2c-32-rc6' of git://git.fluff.org/bjdooks/linux:
  i2c-eg20t: correct the driver init order of pch_i2c_probe()
  I2C: OMAP: fix FIFO usage for OMAP4
  i2c-s3c2410: Fix return code of s3c24xx_i2c_parse_dt_gpio
  i2c: i2c-s3c2410: Add a cpu_relax() to busy wait for bus idle
This commit is contained in:
Linus Torvalds 2011-12-18 14:14:46 -08:00
parent 497f16f21a 0d5fb5ea7d
commit e34d6b4b1c
3 changed files with 20 additions and 16 deletions
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22
drivers/i2c/busses/i2c-eg20t.c
View File

@ -893,6 +893,13 @@ static int __devinit pch_i2c_probe(struct pci_dev *pdev,
/* Set the number of I2C channel instance */
adap_info->ch_num = id->driver_data;
ret = request_irq(pdev->irq, pch_i2c_handler, IRQF_SHARED,
KBUILD_MODNAME, adap_info);
if (ret) {
pch_pci_err(pdev, "request_irq FAILED\n");
goto err_request_irq;
}
for (i = 0; i < adap_info->ch_num; i++) {
pch_adap = &adap_info->pch_data[i].pch_adapter;
adap_info->pch_i2c_suspended = false;
@ -910,28 +917,23 @@ static int __devinit pch_i2c_probe(struct pci_dev *pdev,
pch_adap->dev.parent = &pdev->dev;
pch_i2c_init(&adap_info->pch_data[i]);
ret = i2c_add_adapter(pch_adap);
if (ret) {
pch_pci_err(pdev, "i2c_add_adapter[ch:%d] FAILED\n", i);
goto err_i2c_add_adapter;
goto err_add_adapter;
}
pch_i2c_init(&adap_info->pch_data[i]);
}
ret = request_irq(pdev->irq, pch_i2c_handler, IRQF_SHARED,
KBUILD_MODNAME, adap_info);
if (ret) {
pch_pci_err(pdev, "request_irq FAILED\n");
goto err_i2c_add_adapter;
}
pci_set_drvdata(pdev, adap_info);
pch_pci_dbg(pdev, "returns %d.\n", ret);
return 0;
err_i2c_add_adapter:
err_add_adapter:
for (j = 0; j < i; j++)
i2c_del_adapter(&adap_info->pch_data[j].pch_adapter);
free_irq(pdev->irq, adap_info);
err_request_irq:
pci_iounmap(pdev, base_addr);
err_pci_iomap:
pci_release_regions(pdev);

11
drivers/i2c/busses/i2c-omap.c
View File

@ -1047,13 +1047,14 @@ omap_i2c_probe(struct platform_device *pdev)
* size. This is to ensure that we can handle the status on int
* call back latencies.
*/
if (dev->rev >= OMAP_I2C_REV_ON_3530_4430) {
dev->fifo_size = 0;
dev->fifo_size = (dev->fifo_size / 2);
if (dev->rev >= OMAP_I2C_REV_ON_3530_4430)
dev->b_hw = 0; /* Disable hardware fixes */
} else {
dev->fifo_size = (dev->fifo_size / 2);
else
dev->b_hw = 1; /* Enable hardware fixes */
}
/* calculate wakeup latency constraint for MPU */
if (dev->set_mpu_wkup_lat != NULL)
dev->latency = (1000000 * dev->fifo_size) /

3
drivers/i2c/busses/i2c-s3c2410.c
View File

@ -534,6 +534,7 @@ static int s3c24xx_i2c_doxfer(struct s3c24xx_i2c *i2c,
/* first, try busy waiting briefly */
do {
cpu_relax();
iicstat = readl(i2c->regs + S3C2410_IICSTAT);
} while ((iicstat & S3C2410_IICSTAT_START) && --spins);
@ -786,7 +787,7 @@ static void s3c24xx_i2c_dt_gpio_free(struct s3c24xx_i2c *i2c)
#else
static int s3c24xx_i2c_parse_dt_gpio(struct s3c24xx_i2c *i2c)
{
return -EINVAL;
return 0;
}
static void s3c24xx_i2c_dt_gpio_free(struct s3c24xx_i2c *i2c)