Re: [PATCH net-next v4 1/4] phylib: Add device reset delay support

[Geert Uytterhoeven]

Hi Richard,

On Thu, Dec 7, 2017 at 3:43 PM, Richard Leitner <dev@xxxxxxxxxx> wrote:
> --- a/drivers/net/phy/mdio_device.c
> +++ b/drivers/net/phy/mdio_device.c
> @@ -24,6 +24,7 @@
>  #include <linux/slab.h>
>  #include <linux/string.h>
>  #include <linux/unistd.h>
> +#include <linux/delay.h>
>
>  void mdio_device_free(struct mdio_device *mdiodev)
>  {
> @@ -118,8 +119,16 @@ EXPORT_SYMBOL(mdio_device_remove);
>
>  void mdio_device_reset(struct mdio_device *mdiodev, int value)
>  {
> -       if (mdiodev->reset)
> -               gpiod_set_value(mdiodev->reset, value);
> +       unsigned int d;
> +
> +       if (!mdiodev->reset)
> +               return;
> +
> +       gpiod_set_value(mdiodev->reset, value);
> +
> +       d = value ? mdiodev->reset_delay : mdiodev->reset_post_delay;
> +       if (d)
> +               usleep_range(d, d + min_t(unsigned int, d / 10, 100));

Oops, I meant "max_t", not "min_t", else the upper limit can be "d + 0",
which is not what we want.

Sorry, my fault.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds