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
diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c
index 8cebef4..18936ac 100644
--- a/drivers/i2c/busses/i2c-eg20t.c
+++ b/drivers/i2c/busses/i2c-eg20t.c
@@ -893,6 +893,13 @@
/* 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 @@
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);
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index a43d002..fa23faa 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -1047,13 +1047,14 @@
* 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) /
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index 2754cef..4c17180 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -534,6 +534,7 @@
/* first, try busy waiting briefly */
do {
+ cpu_relax();
iicstat = readl(i2c->regs + S3C2410_IICSTAT);
} while ((iicstat & S3C2410_IICSTAT_START) && --spins);
@@ -786,7 +787,7 @@
#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)