[PATCHv2 1/4] mfd: smsc: Add support for smsc gpio io/keypad driver
Mark Brown
broonie at opensource.wolfsonmicro.com
Sat Sep 8 13:12:38 EST 2012
On Wed, Sep 05, 2012 at 05:06:04PM +0530, Sourav Poddar wrote:
> +static struct regmap_config smsc_regmap_config = {
> + .reg_bits = 8,
> + .val_bits = 8,
> + .max_register = SMSC_MAX_REGISTER - 1;
That max_register setup looks very odd...
> + .cache_type = REGCACHE_COMPRESSED,
> +};
Are you sure the compressed type is sensible? It would normally only
make sense with a large number of closely packed registers but this
device has 8 bit register values.
> +#ifdef CONFIG_OF
> + of_property_read_u32(node, "clock", &smsc->clk);
> +#endif
> + ret = regmap_write(smsc->regmap, SMSC_CLK_CTRL, smsc->clk);
> + if (ret)
> + goto err;
What happens on non-DT systems?
> +static int smsc_i2c_remove(struct i2c_client *i2c)
> +{
> + return 0;
> +}
Remove empty functions, though it's rather surprising that there's
nothing at all to do here.. Normally an MFD would at least remove its
children.
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