diff options
| author | John W. Linville <linville@tuxdriver.com> | 2012-04-12 13:49:28 -0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-04-12 13:49:28 -0400 |
| commit | 8065248069097dddf9945acfb2081025e9618c16 (patch) | |
| tree | eddf3fb0372ba0f65c01382d386942ea8d18932d /drivers/i2c/busses/i2c-i801.c | |
| parent | e66a8ddff72e85605f2212a0ebc666c7e9116641 (diff) | |
| parent | b4838d12e1f3cb48c2489a0b08733b5dbf848297 (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
Diffstat (limited to 'drivers/i2c/busses/i2c-i801.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-i801.c | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 5d2e2816831..ae2945a5e00 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -2,7 +2,7 @@ Copyright (c) 1998 - 2002 Frodo Looijaard <frodol@dds.nl>, Philip Edelbrock <phil@netroedge.com>, and Mark D. Studebaker <mdsxyz123@yahoo.com> - Copyright (C) 2007, 2008 Jean Delvare <khali@linux-fr.org> + Copyright (C) 2007 - 2012 Jean Delvare <khali@linux-fr.org> Copyright (C) 2010 Intel Corporation, David Woodhouse <dwmw2@infradead.org> @@ -51,6 +51,7 @@ Patsburg (PCH) IDF 0x1d72 32 hard yes yes yes DH89xxCC (PCH) 0x2330 32 hard yes yes yes Panther Point (PCH) 0x1e22 32 hard yes yes yes + Lynx Point (PCH) 0x8c22 32 hard yes yes yes Features supported by this driver: Software PEC no @@ -105,7 +106,7 @@ #define SMBHSTCNT_KILL 2 /* Other settings */ -#define MAX_TIMEOUT 100 +#define MAX_RETRIES 400 #define ENABLE_INT9 0 /* set to 0x01 to enable - untested */ /* I801 command constants */ @@ -145,6 +146,7 @@ #define PCI_DEVICE_ID_INTEL_PANTHERPOINT_SMBUS 0x1e22 #define PCI_DEVICE_ID_INTEL_DH89XXCC_SMBUS 0x2330 #define PCI_DEVICE_ID_INTEL_5_3400_SERIES_SMBUS 0x3b30 +#define PCI_DEVICE_ID_INTEL_LYNXPOINT_SMBUS 0x8c22 struct i801_priv { struct i2c_adapter adapter; @@ -215,7 +217,7 @@ static int i801_check_post(struct i801_priv *priv, int status, int timeout) dev_dbg(&priv->pci_dev->dev, "Terminating the current operation\n"); outb_p(inb_p(SMBHSTCNT(priv)) | SMBHSTCNT_KILL, SMBHSTCNT(priv)); - msleep(1); + usleep_range(1000, 2000); outb_p(inb_p(SMBHSTCNT(priv)) & (~SMBHSTCNT_KILL), SMBHSTCNT(priv)); @@ -272,11 +274,11 @@ static int i801_transaction(struct i801_priv *priv, int xact) /* We will always wait for a fraction of a second! */ do { - msleep(1); + usleep_range(250, 500); status = inb_p(SMBHSTSTS(priv)); - } while ((status & SMBHSTSTS_HOST_BUSY) && (timeout++ < MAX_TIMEOUT)); + } while ((status & SMBHSTSTS_HOST_BUSY) && (timeout++ < MAX_RETRIES)); - result = i801_check_post(priv, status, timeout > MAX_TIMEOUT); + result = i801_check_post(priv, status, timeout > MAX_RETRIES); if (result < 0) return result; @@ -291,12 +293,12 @@ static void i801_wait_hwpec(struct i801_priv *priv) int status; do { - msleep(1); + usleep_range(250, 500); status = inb_p(SMBHSTSTS(priv)); } while ((!(status & SMBHSTSTS_INTR)) - && (timeout++ < MAX_TIMEOUT)); + && (timeout++ < MAX_RETRIES)); - if (timeout > MAX_TIMEOUT) + if (timeout > MAX_RETRIES) dev_dbg(&priv->pci_dev->dev, "PEC Timeout!\n"); outb_p(status, SMBHSTSTS(priv)); @@ -380,12 +382,12 @@ static int i801_block_transaction_byte_by_byte(struct i801_priv *priv, /* We will always wait for a fraction of a second! */ timeout = 0; do { - msleep(1); + usleep_range(250, 500); status = inb_p(SMBHSTSTS(priv)); } while ((!(status & SMBHSTSTS_BYTE_DONE)) - && (timeout++ < MAX_TIMEOUT)); + && (timeout++ < MAX_RETRIES)); - result = i801_check_post(priv, status, timeout > MAX_TIMEOUT); + result = i801_check_post(priv, status, timeout > MAX_RETRIES); if (result < 0) return result; @@ -633,6 +635,7 @@ static DEFINE_PCI_DEVICE_TABLE(i801_ids) = { { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS_IDF2) }, { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_DH89XXCC_SMBUS) }, { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PANTHERPOINT_SMBUS) }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LYNXPOINT_SMBUS) }, { 0, } }; |