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0493e649 PC |
1 | #ifndef PINCTRL_PINCTRL_ABx5O0_H |
2 | #define PINCTRL_PINCTRL_ABx500_H | |
3 | ||
4 | /* Package definitions */ | |
5 | #define PINCTRL_AB8500 0 | |
6 | #define PINCTRL_AB8540 1 | |
7 | #define PINCTRL_AB9540 2 | |
8 | #define PINCTRL_AB8505 3 | |
9 | ||
10 | /* pins alternate function */ | |
11 | enum abx500_pin_func { | |
12 | ABX500_DEFAULT, | |
13 | ABX500_ALT_A, | |
14 | ABX500_ALT_B, | |
15 | ABX500_ALT_C, | |
16 | }; | |
17 | ||
18 | /** | |
19 | * struct abx500_function - ABx500 pinctrl mux function | |
20 | * @name: The name of the function, exported to pinctrl core. | |
21 | * @groups: An array of pin groups that may select this function. | |
22 | * @ngroups: The number of entries in @groups. | |
23 | */ | |
24 | struct abx500_function { | |
25 | const char *name; | |
26 | const char * const *groups; | |
27 | unsigned ngroups; | |
28 | }; | |
29 | ||
30 | /** | |
31 | * struct abx500_pingroup - describes a ABx500 pin group | |
32 | * @name: the name of this specific pin group | |
33 | * @pins: an array of discrete physical pins used in this group, taken | |
34 | * from the driver-local pin enumeration space | |
35 | * @num_pins: the number of pins in this group array, i.e. the number of | |
36 | * elements in .pins so we can iterate over that array | |
37 | * @altsetting: the altsetting to apply to all pins in this group to | |
38 | * configure them to be used by a function | |
39 | */ | |
40 | struct abx500_pingroup { | |
41 | const char *name; | |
42 | const unsigned int *pins; | |
43 | const unsigned npins; | |
44 | int altsetting; | |
45 | }; | |
46 | ||
47 | #define ALTERNATE_FUNCTIONS(pin, sel_bit, alt1, alt2, alta, altb, altc) \ | |
48 | { \ | |
49 | .pin_number = pin, \ | |
50 | .gpiosel_bit = sel_bit, \ | |
51 | .alt_bit1 = alt1, \ | |
52 | .alt_bit2 = alt2, \ | |
53 | .alta_val = alta, \ | |
54 | .altb_val = altb, \ | |
55 | .altc_val = altc, \ | |
56 | } | |
57 | ||
58 | #define UNUSED -1 | |
59 | /** | |
60 | * struct alternate_functions | |
61 | * @pin_number: The pin number | |
62 | * @gpiosel_bit: Control bit in GPIOSEL register, | |
63 | * @alt_bit1: First AlternateFunction bit used to select the | |
64 | * alternate function | |
65 | * @alt_bit2: Second AlternateFunction bit used to select the | |
66 | * alternate function | |
67 | * | |
68 | * these 3 following fields are necessary due to none | |
69 | * coherency on how to select the altA, altB and altC | |
70 | * function between the ABx500 SOC family when using | |
71 | * alternatfunc register. | |
72 | * @alta_val: value to write in alternatfunc to select altA function | |
73 | * @altb_val: value to write in alternatfunc to select altB function | |
74 | * @altc_val: value to write in alternatfunc to select altC function | |
75 | */ | |
76 | struct alternate_functions { | |
77 | unsigned pin_number; | |
78 | s8 gpiosel_bit; | |
79 | s8 alt_bit1; | |
80 | s8 alt_bit2; | |
81 | u8 alta_val; | |
82 | u8 altb_val; | |
83 | u8 altc_val; | |
84 | }; | |
85 | ||
86 | /** | |
87 | * struct pullud - specific pull up/down feature | |
88 | * @first_pin: The pin number of the first pins which support | |
89 | * specific pull up/down | |
90 | * @last_pin: The pin number of the last pins | |
91 | */ | |
92 | struct pullud { | |
93 | unsigned first_pin; | |
94 | unsigned last_pin; | |
95 | }; | |
96 | ||
97 | #define GPIO_IRQ_CLUSTER(a, b, c) \ | |
98 | { \ | |
99 | .start = a, \ | |
100 | .end = b, \ | |
101 | .offset = c, \ | |
102 | } | |
103 | ||
104 | /** | |
105 | * struct abx500_gpio_irq_cluster - indicates GPIOs which are interrupt | |
106 | * capable | |
107 | * @start: The pin number of the first pin interrupt capable | |
108 | * @end: The pin number of the last pin interrupt capable | |
109 | * @offset: offset used to compute specific setting strategy of | |
110 | * the interrupt line | |
111 | */ | |
112 | ||
113 | struct abx500_gpio_irq_cluster { | |
114 | int start; | |
115 | int end; | |
116 | int offset; | |
117 | }; | |
118 | ||
119 | /** | |
120 | * struct abx500_pinrange - map pin numbers to GPIO offsets | |
121 | * @offset: offset into the GPIO local numberspace, incidentally | |
122 | * identical to the offset into the local pin numberspace | |
123 | * @npins: number of pins to map from both offsets | |
124 | * @altfunc: altfunc setting to be used to enable GPIO on a pin in | |
125 | * this range (may vary) | |
126 | */ | |
127 | struct abx500_pinrange { | |
128 | unsigned int offset; | |
129 | unsigned int npins; | |
130 | int altfunc; | |
131 | }; | |
132 | ||
133 | #define ABX500_PINRANGE(a, b, c) { .offset = a, .npins = b, .altfunc = c } | |
134 | ||
135 | /** | |
136 | * struct abx500_pinctrl_soc_data - ABx500 pin controller per-SoC configuration | |
137 | * @gpio_ranges: An array of GPIO ranges for this SoC | |
138 | * @gpio_num_ranges: The number of GPIO ranges for this SoC | |
139 | * @pins: An array describing all pins the pin controller affects. | |
140 | * All pins which are also GPIOs must be listed first within the | |
141 | * array, and be numbered identically to the GPIO controller's | |
142 | * numbering. | |
143 | * @npins: The number of entries in @pins. | |
144 | * @functions: The functions supported on this SoC. | |
145 | * @nfunction: The number of entries in @functions. | |
146 | * @groups: An array describing all pin groups the pin SoC supports. | |
147 | * @ngroups: The number of entries in @groups. | |
148 | * @alternate_functions: array describing pins which supports alternate and | |
149 | * how to set it. | |
150 | * @pullud: array describing pins which supports pull up/down | |
151 | * specific registers. | |
152 | * @gpio_irq_cluster: An array of GPIO interrupt capable for this SoC | |
153 | * @ngpio_irq_cluster: The number of GPIO inetrrupt capable for this SoC | |
154 | * @irq_gpio_rising_offset: Interrupt offset used as base to compute specific | |
155 | * setting strategy of the rising interrupt line | |
156 | * @irq_gpio_falling_offset: Interrupt offset used as base to compute specific | |
157 | * setting strategy of the falling interrupt line | |
158 | * @irq_gpio_factor: Factor used to compute specific setting strategy of | |
159 | * the interrupt line | |
160 | */ | |
161 | ||
162 | struct abx500_pinctrl_soc_data { | |
163 | const struct abx500_pinrange *gpio_ranges; | |
164 | unsigned gpio_num_ranges; | |
165 | const struct pinctrl_pin_desc *pins; | |
166 | unsigned npins; | |
167 | const struct abx500_function *functions; | |
168 | unsigned nfunctions; | |
169 | const struct abx500_pingroup *groups; | |
170 | unsigned ngroups; | |
171 | struct alternate_functions *alternate_functions; | |
172 | struct pullud *pullud; | |
173 | struct abx500_gpio_irq_cluster *gpio_irq_cluster; | |
174 | unsigned ngpio_irq_cluster; | |
175 | int irq_gpio_rising_offset; | |
176 | int irq_gpio_falling_offset; | |
177 | int irq_gpio_factor; | |
178 | }; | |
179 | ||
180 | #endif /* PINCTRL_PINCTRL_ABx500_H */ |