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>
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@ -261,6 +261,12 @@ static int __init at91sam926x_pit_dt_init(struct device_node *node)
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return PTR_ERR(data->mck);
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return PTR_ERR(data->mck);
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}
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}
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ret = clk_prepare_enable(data->mck);
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if (ret) {
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pr_err("Unable to enable mck\n");
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return ret;
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}
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/* Get the interrupts property */
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/* Get the interrupts property */
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data->irq = irq_of_parse_and_map(node, 0);
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data->irq = irq_of_parse_and_map(node, 0);
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if (!data->irq) {
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if (!data->irq) {
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