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sfc: I2C adapter initialisation fixes

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As recommended by Jean Delvare:
- Increase timeout to 50 ms
- Leave adapter class clear so that unwanted drivers do not probe our bus
- Use strlcpy() for name initialisation

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Ben Hutchings 2008-07-18 18:59:12 +01:00 committed by Jeff Garzik
parent 81250297d8
commit 9dadae686f
1 changed files with 3 additions and 9 deletions
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12
drivers/net/sfc/falcon.c
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@ -223,13 +223,8 @@ static struct i2c_algo_bit_data falcon_i2c_bit_operations = {
.getsda = falcon_getsda,
.getscl = falcon_getscl,
.udelay = 5,
/*
* This is the number of system clock ticks after which
* i2c-algo-bit gives up waiting for SCL to become high.
* It must be at least 2 since the first tick can happen
* immediately after it starts waiting.
*/
.timeout = 2,
/* Wait up to 50 ms for slave to let us pull SCL high */
.timeout = DIV_ROUND_UP(HZ, 20),
};
/**************************************************************************
@ -2479,12 +2474,11 @@ int falcon_probe_nic(struct efx_nic *efx)
/* Initialise I2C adapter */
efx->i2c_adap.owner = THIS_MODULE;
efx->i2c_adap.class = I2C_CLASS_HWMON;
nic_data->i2c_data = falcon_i2c_bit_operations;
nic_data->i2c_data.data = efx;
efx->i2c_adap.algo_data = &nic_data->i2c_data;
efx->i2c_adap.dev.parent = &efx->pci_dev->dev;
strcpy(efx->i2c_adap.name, "SFC4000 GPIO");
strlcpy(efx->i2c_adap.name, "SFC4000 GPIO", sizeof(efx->i2c_adap.name));
rc = i2c_bit_add_bus(&efx->i2c_adap);
if (rc)
goto fail5;