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i2c: opal: make use of the new infrastructure for quirks 

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Tested-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com>
This commit is contained in:
Wolfram Sang 2015-01-07 12:24:10 +01:00
parent a7405844da
commit a531afdf93
1 changed files with 11 additions and 11 deletions
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22
drivers/i2c/busses/i2c-opal.c
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@ -104,17 +104,6 @@ static int i2c_opal_master_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
req.buffer_ra = cpu_to_be64(__pa(msgs[0].buf)); req.buffer_ra = cpu_to_be64(__pa(msgs[0].buf));
break; break;
case 2: case 2:
/* 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.
*/
if ((msgs[0].flags & I2C_M_RD) || !(msgs[1].flags & I2C_M_RD))
return -EOPNOTSUPP;
if (msgs[0].len > 4)
return -EOPNOTSUPP;
if (msgs[0].addr != msgs[1].addr)
return -EOPNOTSUPP;
req.type = OPAL_I2C_SM_READ; req.type = OPAL_I2C_SM_READ;
req.addr = cpu_to_be16(msgs[0].addr); req.addr = cpu_to_be16(msgs[0].addr);
req.subaddr_sz = msgs[0].len; req.subaddr_sz = msgs[0].len;
@ -210,6 +199,16 @@ static const struct i2c_algorithm i2c_opal_algo = {
.functionality = i2c_opal_func, .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.
*/
static struct i2c_adapter_quirks i2c_opal_quirks = {
.flags = I2C_AQ_COMB_WRITE_THEN_READ,
.max_comb_1st_msg_len = 4,
};
static int i2c_opal_probe(struct platform_device *pdev) static int i2c_opal_probe(struct platform_device *pdev)
{ {
struct i2c_adapter *adapter; struct i2c_adapter *adapter;
@ -232,6 +231,7 @@ static int i2c_opal_probe(struct platform_device *pdev)
adapter->algo = &i2c_opal_algo; adapter->algo = &i2c_opal_algo;
adapter->algo_data = (void *)(unsigned long)opal_id; adapter->algo_data = (void *)(unsigned long)opal_id;
adapter->quirks = &i2c_opal_quirks;
adapter->dev.parent = &pdev->dev; adapter->dev.parent = &pdev->dev;
adapter->dev.of_node = of_node_get(pdev->dev.of_node); adapter->dev.of_node = of_node_get(pdev->dev.of_node);
pname = of_get_property(pdev->dev.of_node, "ibm,port-name", NULL); pname = of_get_property(pdev->dev.of_node, "ibm,port-name", NULL);