[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>

diff --git a/drivers/i2c/busses/i2c-nforce2.c b/drivers/i2c/busses/i2c-nforce2.c
index 74eb89a..1df601b 100644 (file)
--- 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;