From: Hans-Frieder Vogt <hfvogt@gmx.net>
Date: Sat, 23 Jul 2005 13:33:39 +0000 (+0200)
Subject: [PATCH] I2C: cleanup of i2c-nforce2
X-Git-Tag: v2.6.14-rc1~752^2~63
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=5033017c2678df9dc75be0139f19701ff224a498;p=linux-2.6-omap-h63xx.git

[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 74eb89aa935..1df601bb7f4 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;