Hi Peter,
On Mon, Jul 16, 2018 at 1:16 PM Peter Rosin <[email protected]> wrote:
> On 2018-07-16 12:37, Geert Uytterhoeven wrote:
> > On Thu, Jul 12, 2018 at 7:49 PM Wolfram Sang
> > <[email protected]> wrote:
> >> When we we initialize the pins, make sure it looks like STOP by dividing
> >> the delay into halves. It shouldn't matter because SDA is expected to be
> >> held low by a device, but for super-safety, let's do it.
> >>
> >> Signed-off-by: Wolfram Sang <[email protected]>
> >> ---
> >> drivers/i2c/i2c-core-base.c | 5 +++--
> >> 1 file changed, 3 insertions(+), 2 deletions(-)
> >>
> >> diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
> >> index 51cbb0c158f2..e57231ccb32a 100644
> >> --- a/drivers/i2c/i2c-core-base.c
> >> +++ b/drivers/i2c/i2c-core-base.c
> >> @@ -191,9 +191,10 @@ int i2c_generic_scl_recovery(struct i2c_adapter *adap)
> >> bri->prepare_recovery(adap);
> >>
> >> bri->set_scl(adap, scl);
> >> + ndelay(RECOVERY_NDELAY / 2);
> >
> > Any change someone changes RECOVERY_NDELAY to 1, leading to a
> > zero delay here? Is that an issue?
>
> No!
>
> Above this, there is this line:
>
> #define RECOVERY_NDELAY 5000
I did say "change".... (and the first once should have been "chance" ;-)
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]
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
