[PATCH v4 1/4] clocksource: stm32: convert driver to timer_of
From: Daniel Lezcano <hidden>
Date: 2017-10-17 17:53:37
Also in:
linux-devicetree, lkml
On 17/10/2017 19:34, Benjamin Gaignard wrote:
2017-10-17 19:09 GMT+02:00 Daniel Lezcano [off-list ref]:quoted
On 02/10/2017 17:51, Benjamin Gaignard wrote:quoted
Convert driver to use timer_of helpers. This allow to remove custom proprietary structure. Signed-off-by: Benjamin Gaignard <redacted> ---[ ... ]quoted
- clockevents_config_and_register(&data->evtdev, - DIV_ROUND_CLOSEST(rate, prescaler), - 0x1, max_delta); - - ret = request_irq(irq, stm32_clock_event_handler, IRQF_TIMER, - "stm32 clockevent", data); - if (ret) { - pr_err("%pOF: failed to request irq.\n", np); - goto err_get_irq; - } + clockevents_config_and_register(&to->clkevt, + timer_of_period(to), 0x60, max_delta);Why 0x1 -> 0x60 ?Because if the min delta is too small it could generate too much interrupts and the system will not be able to catch all of them.
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