Re: [PATCH v8 2/2] counter: add IRQ or GPIO based counter

2021-03-01 Thread William Breathitt Gray
On Mon, Mar 01, 2021 at 09:04:01AM +0100, Oleksij Rempel wrote: > Add simple IRQ or GPIO base counter. This device is used to measure > rotation speed of some agricultural devices, so no high frequency on the > counter pin is expected. > > The maximal measurement frequency depends on the CPU and

[PATCH v8 2/2] counter: add IRQ or GPIO based counter

2021-03-01 Thread Oleksij Rempel
Add simple IRQ or GPIO base counter. This device is used to measure rotation speed of some agricultural devices, so no high frequency on the counter pin is expected. The maximal measurement frequency depends on the CPU and system load. On the idle iMX6S I was able to measure up to 20kHz without