On Wed, Aug 13, 2014 at 08:53:13PM +0900, Inha Song wrote:
> Some boards need to set the INn_MODE[1:0] register to change
> the input signal patch. This wlf,inmode property is optional.
> If present values must be specified by the number of
> ARIZONA_MAX_INPUT.
>
> Example:
> - wlf,inmode = <2 0 2 0>; /* IN1, IN3 use DMIC */
>
> Signed-off-by: Inha Song <ideal.song@xxxxxxxxxxx>
> ---
> drivers/mfd/arizona-core.c | 11 ++++++++++-
> 1 file changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
> index 10a0cb9..2b68ccd 100644
> --- a/drivers/mfd/arizona-core.c
> +++ b/drivers/mfd/arizona-core.c
> @@ -534,7 +534,7 @@ EXPORT_SYMBOL_GPL(arizona_of_get_named_gpio);
> static int arizona_of_get_core_pdata(struct arizona *arizona)
> {
> struct arizona_pdata *pdata = &arizona->pdata;
> - int ret, i;
> + int ret, i, proplen;
>
> pdata->reset = arizona_of_get_named_gpio(arizona, "wlf,reset", true);
>
> @@ -560,6 +560,15 @@ static int arizona_of_get_core_pdata(struct arizona *arizona)
> ret);
> }
>
> + proplen = of_property_count_u32_elems(arizona->dev->of_node,
> + "wlf,inmode");
> + if (proplen > 0 && proplen <= ARRAY_SIZE(arizona->pdata.inmode)) {
> + for (i = 0; i < proplen; i++)
> + of_property_read_u32_index(arizona->dev->of_node,
> + "wlf,inmode", i,
> + &arizona->pdata.inmode[i]);
> + }
> +
of_property_read_u32_array with proplen as the length should be
ok here since we know the size is smaller than the inmode array.
Thanks,
Charles
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