69 lines
1.4 KiB
C
69 lines
1.4 KiB
C
/*
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* Copyright (c) 2019 Vestas Wind Systems A/S
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*
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* Based on clock_control_mcux_sim.c, which is:
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* Copyright (c) 2017, NXP
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#define DT_DRV_COMPAT nxp_kinetis_mcg
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#include <drivers/clock_control.h>
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#include <dt-bindings/clock/kinetis_mcg.h>
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#include <soc.h>
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#include <fsl_clock.h>
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#define LOG_LEVEL CONFIG_CLOCK_CONTROL_LOG_LEVEL
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#include <logging/log.h>
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LOG_MODULE_REGISTER(clock_control_mcg);
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static int mcux_mcg_on(const struct device *dev,
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clock_control_subsys_t sub_system)
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{
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return 0;
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}
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static int mcux_mcg_off(const struct device *dev,
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clock_control_subsys_t sub_system)
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{
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return 0;
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}
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static int mcux_mcg_get_rate(const struct device *dev,
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clock_control_subsys_t sub_system,
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uint32_t *rate)
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{
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clock_name_t clock_name;
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switch ((uint32_t) sub_system) {
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case KINETIS_MCG_FIXED_FREQ_CLK:
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clock_name = kCLOCK_McgFixedFreqClk;
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break;
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default:
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LOG_ERR("Unsupported clock name");
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return -EINVAL;
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break;
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}
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*rate = CLOCK_GetFreq(clock_name);
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return 0;
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}
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static int mcux_mcg_init(const struct device *dev)
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{
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return 0;
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}
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static const struct clock_control_driver_api mcux_mcg_driver_api = {
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.on = mcux_mcg_on,
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.off = mcux_mcg_off,
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.get_rate = mcux_mcg_get_rate,
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};
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DEVICE_AND_API_INIT(mcux_mcg, DT_INST_LABEL(0),
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&mcux_mcg_init,
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NULL, NULL,
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PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
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&mcux_mcg_driver_api);
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