mirror of https://gitee.com/openkylin/linux.git
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* TI DaVinci clocksource driver
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*
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* Copyright (C) 2019 Texas Instruments
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* Author: Bartosz Golaszewski <bgolaszewski@baylibre.com>
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*/
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#ifndef __TIMER_DAVINCI_H__
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#define __TIMER_DAVINCI_H__
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#include <linux/clk.h>
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#include <linux/ioport.h>
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enum {
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DAVINCI_TIMER_CLOCKEVENT_IRQ,
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DAVINCI_TIMER_CLOCKSOURCE_IRQ,
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DAVINCI_TIMER_NUM_IRQS,
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};
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/**
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* struct davinci_timer_cfg - davinci clocksource driver configuration struct
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* @reg: register range resource
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* @irq: clockevent and clocksource interrupt resources
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* @cmp_off: if set - it specifies the compare register used for clockevent
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*
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* Note: if the compare register is specified, the driver will use the bottom
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* clock half for both clocksource and clockevent and the compare register
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* to generate event irqs. The user must supply the correct compare register
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* interrupt number.
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*
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* This is only used by da830 the DSP of which uses the top half. The timer
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* driver still configures the top half to run in free-run mode.
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*/
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struct davinci_timer_cfg {
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struct resource reg;
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struct resource irq[DAVINCI_TIMER_NUM_IRQS];
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unsigned int cmp_off;
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};
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int __init davinci_timer_register(struct clk *clk,
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const struct davinci_timer_cfg *data);
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#endif /* __TIMER_DAVINCI_H__ */
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