Re: [PATCH v4 0/2] add support for GPIO based counter

2021-01-26 Thread Marc Kleine-Budde
On 1/27/21 7:44 AM, Oleksij Rempel wrote: >>> changes v3: >>> - convert counter to atomic_t >> >> What's the guaranteed width of atomic_t? IIRC a long time ago it was 24 bit >> only > > 32 bits. The counter is wrapped after 4294967295 Note: This is only true for >= v2.6.3 :D https://lwn.net

Re: [PATCH v4 0/2] add support for GPIO based counter

2021-01-26 Thread Oleksij Rempel
On Tue, Jan 26, 2021 at 02:18:34PM +0100, Marc Kleine-Budde wrote: > On 1/26/21 2:12 PM, Oleksij Rempel wrote: > > changes v4: > > - use IRQ_NOAUTOEN to not enable IRQ by default > > - rename gpio_ from name pattern and make this driver work any IRQ > > source. > > > > changes v3: > > - convert

Re: [PATCH v4 0/2] add support for GPIO based counter

2021-01-26 Thread Marc Kleine-Budde
On 1/26/21 2:12 PM, Oleksij Rempel wrote: > changes v4: > - use IRQ_NOAUTOEN to not enable IRQ by default > - rename gpio_ from name pattern and make this driver work any IRQ > source. > > changes v3: > - convert counter to atomic_t What's the guaranteed width of atomic_t? IIRC a long time ago

[PATCH v4 0/2] add support for GPIO based counter

2021-01-26 Thread Oleksij Rempel
changes v4: - use IRQ_NOAUTOEN to not enable IRQ by default - rename gpio_ from name pattern and make this driver work any IRQ source. changes v3: - convert counter to atomic_t changes v2: - add commas - avoid possible unhandled interrupts in the enable path - do not use of_ specific gpio funct