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| author | Hans-Frieder Vogt <hfvogt@gmx.net> | 2005-07-23 15:33:39 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2005-09-05 09:14:04 -0700 |
| commit | 5033017c2678df9dc75be0139f19701ff224a498 (patch) | |
| tree | 8be76d0a5c08d37230ecd66c06d08d39650b4d31 /drivers/i2c | |
| parent | a8decc658a8800e61f13b9240125f2a34d7fd3f5 (diff) | |
| download | kernel_samsung_smdk4412-5033017c2678df9dc75be0139f19701ff224a498.zip kernel_samsung_smdk4412-5033017c2678df9dc75be0139f19701ff224a498.tar.gz kernel_samsung_smdk4412-5033017c2678df9dc75be0139f19701ff224a498.tar.bz2 | |
[PATCH] I2C: cleanup of i2c-nforce2
attached is a small patch that removes unused code from i2c-nforce2 and
adds a single debug message. The patch is against 2.6.13-rc3-mm1.
I have tested the patch with 2.6.13-rc3: compiles cleanly and works as
without the patch (as expected).
Signed-off-by: Hans-Frieder Vogt <hfvogt@arcor.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-nforce2.c | 31 |
1 files changed, 3 insertions, 28 deletions
diff --git a/drivers/i2c/busses/i2c-nforce2.c b/drivers/i2c/busses/i2c-nforce2.c index 74eb89a..1df601b 100644 --- a/drivers/i2c/busses/i2c-nforce2.c +++ b/drivers/i2c/busses/i2c-nforce2.c @@ -131,7 +131,6 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr, struct nforce2_smbus *smbus = adap->algo_data; unsigned char protocol, pec, temp; unsigned char len = 0; /* to keep the compiler quiet */ - int timeout = 0; int i; protocol = (read_write == I2C_SMBUS_READ) ? NVIDIA_SMB_PRTCL_READ : @@ -191,29 +190,10 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr, case I2C_SMBUS_PROC_CALL: dev_err(&adap->dev, "I2C_SMBUS_PROC_CALL not supported!\n"); return -1; - /* - outb_p(command, NVIDIA_SMB_CMD); - outb_p(data->word, NVIDIA_SMB_DATA); - outb_p(data->word >> 8, NVIDIA_SMB_DATA + 1); - protocol = NVIDIA_SMB_PRTCL_PROC_CALL | pec; - read_write = I2C_SMBUS_READ; - break; - */ case I2C_SMBUS_BLOCK_PROC_CALL: dev_err(&adap->dev, "I2C_SMBUS_BLOCK_PROC_CALL not supported!\n"); return -1; - /* - protocol |= pec; - len = min_t(u8, data->block[0], 31); - outb_p(command, NVIDIA_SMB_CMD); - outb_p(len, NVIDIA_SMB_BCNT); - for (i = 0; i < len; i++) - outb_p(data->block[i + 1], NVIDIA_SMB_DATA + i); - protocol = NVIDIA_SMB_PRTCL_BLOCK_PROC_CALL | pec; - read_write = I2C_SMBUS_READ; - break; - */ case I2C_SMBUS_WORD_DATA_PEC: case I2C_SMBUS_BLOCK_DATA_PEC: @@ -232,12 +212,6 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr, temp = inb_p(NVIDIA_SMB_STS); -#if 0 - do { - i2c_do_pause(1); - temp = inb_p(NVIDIA_SMB_STS); - } while (((temp & NVIDIA_SMB_STS_DONE) == 0) && (timeout++ < MAX_TIMEOUT)); -#endif if (~temp & NVIDIA_SMB_STS_DONE) { udelay(500); temp = inb_p(NVIDIA_SMB_STS); @@ -247,9 +221,10 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr, temp = inb_p(NVIDIA_SMB_STS); } - if ((timeout >= MAX_TIMEOUT) || (~temp & NVIDIA_SMB_STS_DONE) - || (temp & NVIDIA_SMB_STS_STATUS)) + if ((~temp & NVIDIA_SMB_STS_DONE) || (temp & NVIDIA_SMB_STS_STATUS)) { + dev_dbg(&adap->dev, "SMBus Timeout! (0x%02x)\n", temp); return -1; + } if (read_write == I2C_SMBUS_WRITE) return 0; |