xref: /openbmc/linux/include/linux/mfd/atmel-hlcdc.h (revision caab277b)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (C) 2014 Free Electrons
4  * Copyright (C) 2014 Atmel
5  *
6  * Author: Boris BREZILLON <boris.brezillon@free-electrons.com>
7  */
8 
9 #ifndef __LINUX_MFD_HLCDC_H
10 #define __LINUX_MFD_HLCDC_H
11 
12 #include <linux/clk.h>
13 #include <linux/regmap.h>
14 
15 #define ATMEL_HLCDC_CFG(i)		((i) * 0x4)
16 #define ATMEL_HLCDC_SIG_CFG		LCDCFG(5)
17 #define ATMEL_HLCDC_HSPOL		BIT(0)
18 #define ATMEL_HLCDC_VSPOL		BIT(1)
19 #define ATMEL_HLCDC_VSPDLYS		BIT(2)
20 #define ATMEL_HLCDC_VSPDLYE		BIT(3)
21 #define ATMEL_HLCDC_DISPPOL		BIT(4)
22 #define ATMEL_HLCDC_DITHER		BIT(6)
23 #define ATMEL_HLCDC_DISPDLY		BIT(7)
24 #define ATMEL_HLCDC_MODE_MASK		GENMASK(9, 8)
25 #define ATMEL_HLCDC_PP			BIT(10)
26 #define ATMEL_HLCDC_VSPSU		BIT(12)
27 #define ATMEL_HLCDC_VSPHO		BIT(13)
28 #define ATMEL_HLCDC_GUARDTIME_MASK	GENMASK(20, 16)
29 
30 #define ATMEL_HLCDC_EN			0x20
31 #define ATMEL_HLCDC_DIS			0x24
32 #define ATMEL_HLCDC_SR			0x28
33 #define ATMEL_HLCDC_IER			0x2c
34 #define ATMEL_HLCDC_IDR			0x30
35 #define ATMEL_HLCDC_IMR			0x34
36 #define ATMEL_HLCDC_ISR			0x38
37 
38 #define ATMEL_HLCDC_CLKPOL		BIT(0)
39 #define ATMEL_HLCDC_CLKSEL		BIT(2)
40 #define ATMEL_HLCDC_CLKPWMSEL		BIT(3)
41 #define ATMEL_HLCDC_CGDIS(i)		BIT(8 + (i))
42 #define ATMEL_HLCDC_CLKDIV_SHFT		16
43 #define ATMEL_HLCDC_CLKDIV_MASK		GENMASK(23, 16)
44 #define ATMEL_HLCDC_CLKDIV(div)		((div - 2) << ATMEL_HLCDC_CLKDIV_SHFT)
45 
46 #define ATMEL_HLCDC_PIXEL_CLK		BIT(0)
47 #define ATMEL_HLCDC_SYNC		BIT(1)
48 #define ATMEL_HLCDC_DISP		BIT(2)
49 #define ATMEL_HLCDC_PWM			BIT(3)
50 #define ATMEL_HLCDC_SIP			BIT(4)
51 
52 #define ATMEL_HLCDC_SOF			BIT(0)
53 #define ATMEL_HLCDC_SYNCDIS		BIT(1)
54 #define ATMEL_HLCDC_FIFOERR		BIT(4)
55 #define ATMEL_HLCDC_LAYER_STATUS(x)	BIT((x) + 8)
56 
57 /**
58  * Structure shared by the MFD device and its subdevices.
59  *
60  * @regmap: register map used to access HLCDC IP registers
61  * @periph_clk: the hlcdc peripheral clock
62  * @sys_clk: the hlcdc system clock
63  * @slow_clk: the system slow clk
64  * @irq: the hlcdc irq
65  */
66 struct atmel_hlcdc {
67 	struct regmap *regmap;
68 	struct clk *periph_clk;
69 	struct clk *sys_clk;
70 	struct clk *slow_clk;
71 	int irq;
72 };
73 
74 #endif /* __LINUX_MFD_HLCDC_H */
75