1 /*
2  * Copyright 2012 Analog Devices Inc.
3  *
4  * Licensed under the GPL-2.
5  */
6 #ifndef __LINUX_PLATFORM_DATA_AD5755_H__
7 #define __LINUX_PLATFORM_DATA_AD5755_H__
8 
9 enum ad5755_mode {
10 	AD5755_MODE_VOLTAGE_0V_5V		= 0,
11 	AD5755_MODE_VOLTAGE_0V_10V		= 1,
12 	AD5755_MODE_VOLTAGE_PLUSMINUS_5V	= 2,
13 	AD5755_MODE_VOLTAGE_PLUSMINUS_10V	= 3,
14 	AD5755_MODE_CURRENT_4mA_20mA		= 4,
15 	AD5755_MODE_CURRENT_0mA_20mA		= 5,
16 	AD5755_MODE_CURRENT_0mA_24mA		= 6,
17 };
18 
19 enum ad5755_dc_dc_phase {
20 	AD5755_DC_DC_PHASE_ALL_SAME_EDGE		= 0,
21 	AD5755_DC_DC_PHASE_A_B_SAME_EDGE_C_D_OPP_EDGE	= 1,
22 	AD5755_DC_DC_PHASE_A_C_SAME_EDGE_B_D_OPP_EDGE	= 2,
23 	AD5755_DC_DC_PHASE_90_DEGREE			= 3,
24 };
25 
26 enum ad5755_dc_dc_freq {
27 	AD5755_DC_DC_FREQ_250kHZ = 0,
28 	AD5755_DC_DC_FREQ_410kHZ = 1,
29 	AD5755_DC_DC_FREQ_650kHZ = 2,
30 };
31 
32 enum ad5755_dc_dc_maxv {
33 	AD5755_DC_DC_MAXV_23V	= 0,
34 	AD5755_DC_DC_MAXV_24V5	= 1,
35 	AD5755_DC_DC_MAXV_27V	= 2,
36 	AD5755_DC_DC_MAXV_29V5	= 3,
37 };
38 
39 enum ad5755_slew_rate {
40 	AD5755_SLEW_RATE_64k	= 0,
41 	AD5755_SLEW_RATE_32k	= 1,
42 	AD5755_SLEW_RATE_16k	= 2,
43 	AD5755_SLEW_RATE_8k	= 3,
44 	AD5755_SLEW_RATE_4k	= 4,
45 	AD5755_SLEW_RATE_2k	= 5,
46 	AD5755_SLEW_RATE_1k	= 6,
47 	AD5755_SLEW_RATE_500	= 7,
48 	AD5755_SLEW_RATE_250	= 8,
49 	AD5755_SLEW_RATE_125	= 9,
50 	AD5755_SLEW_RATE_64	= 10,
51 	AD5755_SLEW_RATE_32	= 11,
52 	AD5755_SLEW_RATE_16	= 12,
53 	AD5755_SLEW_RATE_8	= 13,
54 	AD5755_SLEW_RATE_4	= 14,
55 	AD5755_SLEW_RATE_0_5	= 15,
56 };
57 
58 enum ad5755_slew_step_size {
59 	AD5755_SLEW_STEP_SIZE_1 = 0,
60 	AD5755_SLEW_STEP_SIZE_2 = 1,
61 	AD5755_SLEW_STEP_SIZE_4 = 2,
62 	AD5755_SLEW_STEP_SIZE_8 = 3,
63 	AD5755_SLEW_STEP_SIZE_16 = 4,
64 	AD5755_SLEW_STEP_SIZE_32 = 5,
65 	AD5755_SLEW_STEP_SIZE_64 = 6,
66 	AD5755_SLEW_STEP_SIZE_128 = 7,
67 	AD5755_SLEW_STEP_SIZE_256 = 8,
68 };
69 
70 /**
71  * struct ad5755_platform_data - AD5755 DAC driver platform data
72  * @ext_dc_dc_compenstation_resistor: Whether an external DC-DC converter
73  * compensation register is used.
74  * @dc_dc_phase: DC-DC converter phase.
75  * @dc_dc_freq: DC-DC converter frequency.
76  * @dc_dc_maxv: DC-DC maximum allowed boost voltage.
77  * @dac.mode: The mode to be used for the DAC output.
78  * @dac.ext_current_sense_resistor: Whether an external current sense resistor
79  * is used.
80  * @dac.enable_voltage_overrange: Whether to enable 20% voltage output overrange.
81  * @dac.slew.enable: Whether to enable digital slew.
82  * @dac.slew.rate: Slew rate of the digital slew.
83  * @dac.slew.step_size: Slew step size of the digital slew.
84  **/
85 struct ad5755_platform_data {
86 	bool ext_dc_dc_compenstation_resistor;
87 	enum ad5755_dc_dc_phase dc_dc_phase;
88 	enum ad5755_dc_dc_freq dc_dc_freq;
89 	enum ad5755_dc_dc_maxv dc_dc_maxv;
90 
91 	struct {
92 		enum ad5755_mode mode;
93 		bool ext_current_sense_resistor;
94 		bool enable_voltage_overrange;
95 		struct {
96 			bool enable;
97 			enum ad5755_slew_rate rate;
98 			enum ad5755_slew_step_size step_size;
99 		} slew;
100 	} dac[4];
101 };
102 
103 #endif
104