Hi Dmitry, On Mon, Feb 14, 2022 at 10:14:24PM -0800, Dmitry Torokhov wrote: > Hi Danilo, > > On Fri, Feb 11, 2022 at 10:22:56PM +0100, Danilo Krummrich wrote: > > @@ -128,20 +155,33 @@ static irqreturn_t ps2_gpio_irq_rx(struct ps2_gpio_data *drvdata) > > unsigned char byte, cnt; > > int data; > > int rxflags = 0; > > - static unsigned long old_jiffies; > > + static ktime_t t_last, t_now; > > + s64 us_delta; > > > > byte = drvdata->rx_byte; > > cnt = drvdata->rx_cnt; > > > > - if (old_jiffies == 0) > > - old_jiffies = jiffies; > > + t_now = ktime_get(); > > + if (t_last == 0) > > Instead of checking this every time, do you think we could seed the > value in ps2_gpio_open() (and also make it per-port, not static)? Oops! Sure, I'll send a v2. I will also add another patch to refactor struct ps2_gpio_data to clearly separate rx and tx state data, otherwise it might start to become a bit messy. > > Thanks. > > -- > Dmitry - Danilo