Commit 699e36e5 authored Aug 23, 2016 by Alexandre Belloni Committed by Daniel Lezcano Aug 26, 2016

clocksource/drivers/timer-atmel-pit: Enable mck clock



mck is needed to get the PIT working. Explicitly prepare_enable it instead
of assuming it is enabled.

This solves an issue where the system is freezing when the ETM/ETB drivers
are enabled.

Reported-by: Olivier Schonken <olivier.schonken@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

parent aa8c0f1a

drivers/clocksource/timer-atmel-pit.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -261,6 +261,12 @@ static int __init at91sam926x_pit_dt_init(struct device_node *node)
		return PTR_ERR(data->mck);
		}

		ret = clk_prepare_enable(data->mck);
		if (ret) {
		pr_err("Unable to enable mck\n");
		return ret;
		}

		/* Get the interrupts property */
		data->irq = irq_of_parse_and_map(node, 0);
		if (!data->irq) {

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