linux-kernel - Re: [PATCH] pinctrl: amd: print debounce filter info in debugfs

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Date:   Mon, 26 Oct 2020 23:16:42 +0800
From:   Coiby Xu <coiby.xu@...il.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Hans de Goede <hdegoede@...hat.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] pinctrl: amd: print debounce filter info in debugfs

On Sun, Oct 25, 2020 at 07:12:16PM +0200, Andy Shevchenko wrote:
>On Sat, Oct 24, 2020 at 2:32 PM Coiby Xu <coiby.xu@...il.com> wrote:
>>
>> Print out the status of debounce filter as follows,
>> $ cat /sys/kernel/debug/gpio|grep pin130
>> pin130          interrupt is disabled| interrupt is masked| disable wakeup in S0i3 state| disable wakeup in S3 state|
>>  disable wakeup in S4/S5 state| input is high|   pull-up is disabled| Pull-down is disabled|   output is disabled| debouncing filter (high) enabled| debouncing timeout is 124800 (us)| 0x503c8
>
>
>> +                               if (!tmr_large) {
>> +                                       if (!tmr_out_unit)
>> +                                               unit = 61;
>> +                                       else
>> +                                               unit = 244;
>> +                               } else {
>> +                                       if (!tmr_out_unit)
>> +                                               unit = 15600;
>> +                                       else
>> +                                               unit = 62500;
>> +                               }
>
>In all three if:s can you use positive conditionals?
>
Thank you for the suggestion! I've reversed the order of debounce
timeout in v2.

>--
>With Best Regards,
>Andy Shevchenko

--
Best regards,
Coiby