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i2c: opal: Update quirk flags to do write-then-anything 

Hardware can do write-then-anything. Activate that.

Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com>
[wsa: cosmetic updates]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
wifi-calibration
Neelesh Gupta 2015-03-13 15:25:33 +01:00 committed by Wolfram Sang
parent 338f1ab6c4
commit bf07038051
1 changed files with 6 additions and 6 deletions
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12
drivers/i2c/busses/i2c-opal.c
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@ -104,7 +104,8 @@ static int i2c_opal_master_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
req.buffer_ra = cpu_to_be64(__pa(msgs[0].buf));
break;
case 2:
req.type = OPAL_I2C_SM_READ;
req.type = (msgs[1].flags & I2C_M_RD) ?
OPAL_I2C_SM_READ : OPAL_I2C_SM_WRITE;
req.addr = cpu_to_be16(msgs[0].addr);
req.subaddr_sz = msgs[0].len;
for (i = 0; i < msgs[0].len; i++)
@ -199,13 +200,12 @@ static const struct i2c_algorithm i2c_opal_algo = {
.functionality = i2c_opal_func,
};
/* For two messages, we basically support only simple
* smbus transactions of a write plus a read. We might
* want to allow also two writes but we'd have to bounce
* the data into a single buffer.
/*
* For two messages, we basically support simple smbus transactions of a
* write-then-anything.
*/
static struct i2c_adapter_quirks i2c_opal_quirks = {
.flags = I2C_AQ_COMB_WRITE_THEN_READ,
.flags = I2C_AQ_COMB | I2C_AQ_COMB_WRITE_FIRST | I2C_AQ_COMB_SAME_ADDR,
.max_comb_1st_msg_len = 4,
};