diff options
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-piix4.c | 14 | ||||
| -rw-r--r-- | drivers/i2c/i2c-core.c | 3 |
2 files changed, 10 insertions, 7 deletions
diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c index e34d82e79b98..c21ca7bf2efe 100644 --- a/drivers/i2c/busses/i2c-piix4.c +++ b/drivers/i2c/busses/i2c-piix4.c @@ -58,7 +58,7 @@ #define SMBSLVDAT (0xC + piix4_smba) /* count for request_region */ -#define SMBIOSIZE 8 +#define SMBIOSIZE 9 /* PCI Address Constants */ #define SMBBA 0x090 @@ -592,6 +592,8 @@ static s32 piix4_access_sb800(struct i2c_adapter *adap, u16 addr, u8 port; int retval; + mutex_lock(&piix4_mutex_sb800); + /* Request the SMBUS semaphore, avoid conflicts with the IMC */ smbslvcnt = inb_p(SMBSLVCNT); do { @@ -605,10 +607,10 @@ static s32 piix4_access_sb800(struct i2c_adapter *adap, u16 addr, usleep_range(1000, 2000); } while (--retries); /* SMBus is still owned by the IMC, we give up */ - if (!retries) + if (!retries) { + mutex_unlock(&piix4_mutex_sb800); return -EBUSY; - - mutex_lock(&piix4_mutex_sb800); + } outb_p(piix4_port_sel_sb800, SB800_PIIX4_SMB_IDX); smba_en_lo = inb_p(SB800_PIIX4_SMB_IDX + 1); @@ -623,11 +625,11 @@ static s32 piix4_access_sb800(struct i2c_adapter *adap, u16 addr, outb_p(smba_en_lo, SB800_PIIX4_SMB_IDX + 1); - mutex_unlock(&piix4_mutex_sb800); - /* Release the semaphore */ outb_p(smbslvcnt | 0x20, SMBSLVCNT); + mutex_unlock(&piix4_mutex_sb800); + return retval; } diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 583e95042a21..1e52395e90a7 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -221,7 +221,8 @@ static int i2c_acpi_get_info(struct acpi_device *adev, acpi_dev_free_resource_list(&resource_list); - strlcpy(info->type, dev_name(&adev->dev), sizeof(info->type)); + acpi_set_modalias(adev, dev_name(&adev->dev), info->type, + sizeof(info->type)); return 0; } |