Le 04/07/2016 22:24, Boris Brezillon a écrit : > On Mon, 4 Jul 2016 18:00:09 +0200 > Alexandre Belloni <[email protected]> wrote: > >> mck is needed to get the PIT working. Explicitly prepare_enable it instead >> of assuming it is enabled. >> >> This solves an issue were the system is freezing when the ETM/ETB drivers > > ^ where > >> are enabled. >> >> Reported-by: Olivier Schonken <[email protected]> >> Signed-off-by: Alexandre Belloni <[email protected]> > > Reviewed-by: Boris Brezillon <[email protected]>
Acked-by: Nicolas Ferre <[email protected]> >> --- >> drivers/clocksource/timer-atmel-pit.c | 3 +++ >> 1 file changed, 3 insertions(+) >> >> diff --git a/drivers/clocksource/timer-atmel-pit.c >> b/drivers/clocksource/timer-atmel-pit.c >> index d911c5dca8f1..fcc97711cd79 100644 >> --- a/drivers/clocksource/timer-atmel-pit.c >> +++ b/drivers/clocksource/timer-atmel-pit.c >> @@ -248,6 +248,9 @@ static void __init at91sam926x_pit_dt_init(struct >> device_node *node) >> if (IS_ERR(data->mck)) >> panic(pr_fmt("Unable to get mck clk\n")); >> >> + if (clk_prepare_enable(data->mck)) >> + panic(pr_fmt("Unable to enable mck\n")); >> + >> /* Get the interrupts property */ >> data->irq = irq_of_parse_and_map(node, 0); >> if (!data->irq) > > -- Nicolas Ferre
