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drivers: timer: mcux_gpt: Enable GPT timer to run in doze mode

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GPT timer must continue running in low power modes, as it is the system
wakeup source. Set configuration to ensure peripheral will not stop
running in low power modes.

Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
This commit is contained in:
Daniel DeGrasse 2021-12-14 10:24:39 -06:00 • committed by Anas Nashif
commit 59f9dfae58
1 changed files with 4 additions and 0 deletions
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4
drivers/timer/mcux_gpt_timer.c
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@ -317,6 +317,10 @@ int sys_clock_driver_init(const struct device *dev)
base = (GPT_Type *)DT_REG_ADDR(GPT_INST);
GPT_GetDefaultConfig(&gpt_config);
/* Enable GPT timer to run in SOC low power states */
gpt_config.enableRunInStop = true;
gpt_config.enableRunInWait = true;
gpt_config.enableRunInDoze = true;
/* Use 32KHz clock frequency */
gpt_config.clockSource = kGPT_ClockSource_LowFreq;
gpt_config.enableFreeRun = false; /* Set GPT to reset mode */