On Tue, Dec 15, 2015 at 4:56 AM, Peter Hung <hpe...@gmail.com> wrote:
> Andy Shevchenko 於 2015/12/13 上午 09:08 寫道:
>>
>> On Tue, Dec 1, 2015 at 8:54 AM, Peter Hung <hpe...@gmail.com> wrote:
>>> +/* The device is multi-function with UART & GPIO */
>>> +static u8 fintek_gpio_mapping[] = {2, 3, 8, 9, 10, 11};
>>
>>
>> Clearly you have bit combination here
>> Bit 1: 1
>> Bit 3: 1
>>
>> So, mask as 0x0a shall cover this IIAC.
>
>
> IMO, It maybe wrong. If we checked only with 0x0a mask,
> the 0x06 & 0x07 will be passed.Ah, yes, it will be a bit more than just one check, something like: (x & 0x0a) && (x & 0x0e != 6) -- With Best Regards, Andy Shevchenko -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
