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Commit e8aac4a9 authored by Jean Delvare's avatar Jean Delvare Committed by Greg Kroah-Hartman
Browse files

[PATCH] i2c: i2c-i801 PEC code cleanups 



The tests leading to the use of hardware PEC in the i2c-i801 driver
can be simplified.

Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 585b3160

drivers/i2c/busses/i2c-i801.c

+10 −14
Original line number Diff line number Diff line
@@ -388,7 +388,7 @@ static int i801_block_transaction(union i2c_smbus_data *data, char read_write, 
			goto END;

	}



	if (hwpec && command == I2C_SMBUS_BLOCK_DATA) {

	if (hwpec) {

		/* wait for INTR bit as advised by Intel */

		timeout = 0;

		do {
@@ -416,12 +416,13 @@ static s32 i801_access(struct i2c_adapter * adap, u16 addr, 
		       unsigned short flags, char read_write, u8 command,

		       int size, union i2c_smbus_data * data)

{

	int hwpec = 0;

	int hwpec;

	int block = 0;

	int ret, xact = 0;



	if(isich4)

		hwpec = (flags & I2C_CLIENT_PEC) != 0;

	hwpec = isich4 && (flags & I2C_CLIENT_PEC)

		&& size != I2C_SMBUS_QUICK

		&& size != I2C_SMBUS_I2C_BLOCK_DATA;



	switch (size) {

	case I2C_SMBUS_QUICK:
@@ -467,11 +468,9 @@ static s32 i801_access(struct i2c_adapter * adap, u16 addr, 
		return -1;

	}



	if(isich4 && hwpec) {

		if(size != I2C_SMBUS_QUICK &&

		   size != I2C_SMBUS_I2C_BLOCK_DATA)

			outb_p(1, SMBAUXCTL);	/* enable HW PEC */

	}

	if (hwpec)

		outb_p(1, SMBAUXCTL);	/* enable hardware PEC */



	if(block)

		ret = i801_block_transaction(data, read_write, size, hwpec);

	else {
@@ -479,11 +478,8 @@ static s32 i801_access(struct i2c_adapter * adap, u16 addr, 
		ret = i801_transaction();

	}



	if(isich4 && hwpec) {

		if(size != I2C_SMBUS_QUICK &&

		   size != I2C_SMBUS_I2C_BLOCK_DATA)

			outb_p(0, SMBAUXCTL);

	}

	if (hwpec)

		outb_p(0, SMBAUXCTL);	/* disable hardware PEC */



	if(block)

		return ret;