1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * Copyright (C) 2009 Samsung Electronics
4 * Kyungmin Park <kyungmin.park@samsung.com>
5 * Minkyu Kang <mk7.kang@samsung.com>
6 */
7
8#ifndef __ASM_ARM_ARCH_PWM_H_
9#define __ASM_ARM_ARCH_PWM_H_
10
11#define PRESCALER_0		(8 - 1)		/* prescaler of timer 0, 1 */
12#define PRESCALER_1		(16 - 1)	/* prescaler of timer 2, 3, 4 */
13
14/* Divider MUX */
15#define MUX_DIV_1		0		/* 1/1 period */
16#define MUX_DIV_2		1		/* 1/2 period */
17#define MUX_DIV_4		2		/* 1/4 period */
18#define MUX_DIV_8		3		/* 1/8 period */
19#define MUX_DIV_16		4		/* 1/16 period */
20
21#define MUX_DIV_SHIFT(x)	(x * 4)
22
23#define TCON_OFFSET(x)		((x + 1) * (!!x) << 2)
24
25#define TCON_START(x)		(1 << TCON_OFFSET(x))
26#define TCON_UPDATE(x)		(1 << (TCON_OFFSET(x) + 1))
27#define TCON_INVERTER(x)	(1 << (TCON_OFFSET(x) + 2))
28#define TCON_AUTO_RELOAD(x)	(1 << (TCON_OFFSET(x) + 3))
29#define TCON4_AUTO_RELOAD	(1 << 22)
30
31#ifndef __ASSEMBLY__
32struct s5p_timer {
33	unsigned int	tcfg0;
34	unsigned int	tcfg1;
35	unsigned int	tcon;
36	unsigned int	tcntb0;
37	unsigned int	tcmpb0;
38	unsigned int	tcnto0;
39	unsigned int	tcntb1;
40	unsigned int	tcmpb1;
41	unsigned int	tcnto1;
42	unsigned int	tcntb2;
43	unsigned int	tcmpb2;
44	unsigned int	tcnto2;
45	unsigned int	tcntb3;
46	unsigned int	tcmpb3;
47	unsigned int	tcnto3;
48	unsigned int	tcntb4;
49	unsigned int	tcnto4;
50	unsigned int	tintcstat;
51};
52
53int s5p_pwm_init (int pwm_id, int div, int invert);
54int s5p_pwm_config (int pwm_id, int duty_ns, int period_ns);
55int s5p_pwm_enable (int pwm_id);
56void s5p_pwm_disable (int pwm_id);
57#endif	/* __ASSEMBLY__ */
58
59#endif
60