This is a backport of two upstream (3.13) patches:
[platform/upstream/kernel-adaptation-pc.git] / drivers / pinctrl / pinctrl-nomadik-stn8815.c
1 #include <linux/kernel.h>
2 #include <linux/pinctrl/pinctrl.h>
3 #include "pinctrl-nomadik.h"
4
5 /* All the pins that can be used for GPIO and some other functions */
6 #define _GPIO(offset)           (offset)
7
8 #define STN8815_PIN_B4          _GPIO(0)
9 #define STN8815_PIN_D5          _GPIO(1)
10 #define STN8815_PIN_C5          _GPIO(2)
11 #define STN8815_PIN_A4          _GPIO(3)
12 #define STN8815_PIN_B5          _GPIO(4)
13 #define STN8815_PIN_D6          _GPIO(5)
14 #define STN8815_PIN_C6          _GPIO(6)
15 #define STN8815_PIN_B6          _GPIO(7)
16 #define STN8815_PIN_B10         _GPIO(8)
17 #define STN8815_PIN_A10         _GPIO(9)
18 #define STN8815_PIN_C11         _GPIO(10)
19 #define STN8815_PIN_B11         _GPIO(11)
20 #define STN8815_PIN_A11         _GPIO(12)
21 #define STN8815_PIN_C12         _GPIO(13)
22 #define STN8815_PIN_B12         _GPIO(14)
23 #define STN8815_PIN_A12         _GPIO(15)
24 #define STN8815_PIN_C13         _GPIO(16)
25 #define STN8815_PIN_B13         _GPIO(17)
26 #define STN8815_PIN_A13         _GPIO(18)
27 #define STN8815_PIN_D13         _GPIO(19)
28 #define STN8815_PIN_C14         _GPIO(20)
29 #define STN8815_PIN_B14         _GPIO(21)
30 #define STN8815_PIN_A14         _GPIO(22)
31 #define STN8815_PIN_D15         _GPIO(23)
32 #define STN8815_PIN_C15         _GPIO(24)
33 #define STN8815_PIN_B15         _GPIO(25)
34 #define STN8815_PIN_A15         _GPIO(26)
35 #define STN8815_PIN_C16         _GPIO(27)
36 #define STN8815_PIN_B16         _GPIO(28)
37 #define STN8815_PIN_A16         _GPIO(29)
38 #define STN8815_PIN_D17         _GPIO(30)
39 #define STN8815_PIN_C17         _GPIO(31)
40 #define STN8815_PIN_AB6         _GPIO(32)
41 #define STN8815_PIN_AA6         _GPIO(33)
42 #define STN8815_PIN_Y6          _GPIO(34)
43 #define STN8815_PIN_Y5          _GPIO(35)
44 #define STN8815_PIN_AA5         _GPIO(36)
45 #define STN8815_PIN_AB5         _GPIO(37)
46 #define STN8815_PIN_AB4         _GPIO(38)
47 #define STN8815_PIN_Y4          _GPIO(39)
48 #define STN8815_PIN_R1          _GPIO(40)
49 #define STN8815_PIN_R2          _GPIO(41)
50 #define STN8815_PIN_R3          _GPIO(42)
51 #define STN8815_PIN_P1          _GPIO(43)
52 #define STN8815_PIN_P2          _GPIO(44)
53 #define STN8815_PIN_P3          _GPIO(45)
54 #define STN8815_PIN_N1          _GPIO(46)
55 #define STN8815_PIN_N2          _GPIO(47)
56 #define STN8815_PIN_N3          _GPIO(48)
57 #define STN8815_PIN_M1          _GPIO(49)
58 #define STN8815_PIN_M3          _GPIO(50)
59 #define STN8815_PIN_M2          _GPIO(51)
60 #define STN8815_PIN_L1          _GPIO(52)
61 #define STN8815_PIN_L4          _GPIO(53)
62 #define STN8815_PIN_L3          _GPIO(54)
63 #define STN8815_PIN_L2          _GPIO(55)
64 #define STN8815_PIN_F3          _GPIO(56)
65 #define STN8815_PIN_F2          _GPIO(57)
66 #define STN8815_PIN_E1          _GPIO(58)
67 #define STN8815_PIN_E3          _GPIO(59)
68 #define STN8815_PIN_E2          _GPIO(60)
69 #define STN8815_PIN_E4          _GPIO(61)
70 #define STN8815_PIN_D3          _GPIO(62)
71 #define STN8815_PIN_D2          _GPIO(63)
72 #define STN8815_PIN_F21         _GPIO(64)
73 #define STN8815_PIN_F20         _GPIO(65)
74 #define STN8815_PIN_E22         _GPIO(66)
75 #define STN8815_PIN_D22         _GPIO(67)
76 #define STN8815_PIN_E21         _GPIO(68)
77 #define STN8815_PIN_E20         _GPIO(69)
78 #define STN8815_PIN_C22         _GPIO(70)
79 #define STN8815_PIN_D21         _GPIO(71)
80 #define STN8815_PIN_D20         _GPIO(72)
81 #define STN8815_PIN_C21         _GPIO(73)
82 #define STN8815_PIN_C20         _GPIO(74)
83 #define STN8815_PIN_C19         _GPIO(75)
84 #define STN8815_PIN_B20         _GPIO(76)
85 #define STN8815_PIN_B8          _GPIO(77)
86 #define STN8815_PIN_A8          _GPIO(78)
87 #define STN8815_PIN_C9          _GPIO(79)
88 #define STN8815_PIN_B9          _GPIO(80)
89 #define STN8815_PIN_A9          _GPIO(81)
90 #define STN8815_PIN_C10         _GPIO(82)
91 #define STN8815_PIN_K1          _GPIO(83)
92 #define STN8815_PIN_K3          _GPIO(84)
93 #define STN8815_PIN_K2          _GPIO(85)
94 #define STN8815_PIN_J1          _GPIO(86)
95 #define STN8815_PIN_J3          _GPIO(87)
96 #define STN8815_PIN_J2          _GPIO(88)
97 #define STN8815_PIN_H1          _GPIO(89)
98 #define STN8815_PIN_H3          _GPIO(90)
99 #define STN8815_PIN_H2          _GPIO(91)
100 #define STN8815_PIN_G1          _GPIO(92)
101 #define STN8815_PIN_G3          _GPIO(93)
102 #define STN8815_PIN_G2          _GPIO(94)
103 #define STN8815_PIN_F1          _GPIO(95)
104 #define STN8815_PIN_T20         _GPIO(96)
105 #define STN8815_PIN_R21         _GPIO(97)
106 #define STN8815_PIN_R20         _GPIO(98)
107 #define STN8815_PIN_U22         _GPIO(99)
108 #define STN8815_PIN_N21         _GPIO(100)
109 #define STN8815_PIN_N20         _GPIO(101)
110 #define STN8815_PIN_P22         _GPIO(102)
111 #define STN8815_PIN_N22         _GPIO(103)
112 #define STN8815_PIN_V22         _GPIO(104)
113 #define STN8815_PIN_V21         _GPIO(105)
114 #define STN8815_PIN_K22         _GPIO(106)
115 #define STN8815_PIN_K21         _GPIO(107)
116 #define STN8815_PIN_H20         _GPIO(108)
117 #define STN8815_PIN_G20         _GPIO(109)
118 #define STN8815_PIN_L21         _GPIO(110)
119 #define STN8815_PIN_H21         _GPIO(111)
120 #define STN8815_PIN_J21         _GPIO(112)
121 #define STN8815_PIN_H22         _GPIO(113)
122 #define STN8815_PIN_K20         _GPIO(114)
123 #define STN8815_PIN_L22         _GPIO(115)
124 #define STN8815_PIN_G21         _GPIO(116)
125 #define STN8815_PIN_J20         _GPIO(117)
126 #define STN8815_PIN_G22         _GPIO(118)
127 #define STN8815_PIN_U19         _GPIO(119)
128 #define STN8815_PIN_G19         _GPIO(120)
129 #define STN8815_PIN_M22         _GPIO(121)
130 #define STN8815_PIN_M19         _GPIO(122)
131 #define STN8815_PIN_J22         _GPIO(123)
132 /* GPIOs 124-127 not routed to pins */
133
134 /*
135  * The names of the pins are denoted by GPIO number and ball name, even
136  * though they can be used for other things than GPIO, this is the first
137  * column in the table of the data sheet and often used on schematics and
138  * such.
139  */
140 static const struct pinctrl_pin_desc nmk_stn8815_pins[] = {
141         PINCTRL_PIN(STN8815_PIN_B4, "GPIO0_B4"),
142         PINCTRL_PIN(STN8815_PIN_D5, "GPIO1_D5"),
143         PINCTRL_PIN(STN8815_PIN_C5, "GPIO2_C5"),
144         PINCTRL_PIN(STN8815_PIN_A4, "GPIO3_A4"),
145         PINCTRL_PIN(STN8815_PIN_B5, "GPIO4_B5"),
146         PINCTRL_PIN(STN8815_PIN_D6, "GPIO5_D6"),
147         PINCTRL_PIN(STN8815_PIN_C6, "GPIO6_C6"),
148         PINCTRL_PIN(STN8815_PIN_B6, "GPIO7_B6"),
149         PINCTRL_PIN(STN8815_PIN_B10, "GPIO8_B10"),
150         PINCTRL_PIN(STN8815_PIN_A10, "GPIO9_A10"),
151         PINCTRL_PIN(STN8815_PIN_C11, "GPIO10_C11"),
152         PINCTRL_PIN(STN8815_PIN_B11, "GPIO11_B11"),
153         PINCTRL_PIN(STN8815_PIN_A11, "GPIO12_A11"),
154         PINCTRL_PIN(STN8815_PIN_C12, "GPIO13_C12"),
155         PINCTRL_PIN(STN8815_PIN_B12, "GPIO14_B12"),
156         PINCTRL_PIN(STN8815_PIN_A12, "GPIO15_A12"),
157         PINCTRL_PIN(STN8815_PIN_C13, "GPIO16_C13"),
158         PINCTRL_PIN(STN8815_PIN_B13, "GPIO17_B13"),
159         PINCTRL_PIN(STN8815_PIN_A13, "GPIO18_A13"),
160         PINCTRL_PIN(STN8815_PIN_D13, "GPIO19_D13"),
161         PINCTRL_PIN(STN8815_PIN_C14, "GPIO20_C14"),
162         PINCTRL_PIN(STN8815_PIN_B14, "GPIO21_B14"),
163         PINCTRL_PIN(STN8815_PIN_A14, "GPIO22_A14"),
164         PINCTRL_PIN(STN8815_PIN_D15, "GPIO23_D15"),
165         PINCTRL_PIN(STN8815_PIN_C15, "GPIO24_C15"),
166         PINCTRL_PIN(STN8815_PIN_B15, "GPIO25_B15"),
167         PINCTRL_PIN(STN8815_PIN_A15, "GPIO26_A15"),
168         PINCTRL_PIN(STN8815_PIN_C16, "GPIO27_C16"),
169         PINCTRL_PIN(STN8815_PIN_B16, "GPIO28_B16"),
170         PINCTRL_PIN(STN8815_PIN_A16, "GPIO29_A16"),
171         PINCTRL_PIN(STN8815_PIN_D17, "GPIO30_D17"),
172         PINCTRL_PIN(STN8815_PIN_C17, "GPIO31_C17"),
173         PINCTRL_PIN(STN8815_PIN_AB6, "GPIO32_AB6"),
174         PINCTRL_PIN(STN8815_PIN_AA6, "GPIO33_AA6"),
175         PINCTRL_PIN(STN8815_PIN_Y6, "GPIO34_Y6"),
176         PINCTRL_PIN(STN8815_PIN_Y5, "GPIO35_Y5"),
177         PINCTRL_PIN(STN8815_PIN_AA5, "GPIO36_AA5"),
178         PINCTRL_PIN(STN8815_PIN_AB5, "GPIO37_AB5"),
179         PINCTRL_PIN(STN8815_PIN_AB4, "GPIO38_AB4"),
180         PINCTRL_PIN(STN8815_PIN_Y4, "GPIO39_Y4"),
181         PINCTRL_PIN(STN8815_PIN_R1, "GPIO40_R1"),
182         PINCTRL_PIN(STN8815_PIN_R2, "GPIO41_R2"),
183         PINCTRL_PIN(STN8815_PIN_R3, "GPIO42_R3"),
184         PINCTRL_PIN(STN8815_PIN_P1, "GPIO43_P1"),
185         PINCTRL_PIN(STN8815_PIN_P2, "GPIO44_P2"),
186         PINCTRL_PIN(STN8815_PIN_P3, "GPIO45_P3"),
187         PINCTRL_PIN(STN8815_PIN_N1, "GPIO46_N1"),
188         PINCTRL_PIN(STN8815_PIN_N2, "GPIO47_N2"),
189         PINCTRL_PIN(STN8815_PIN_N3, "GPIO48_N3"),
190         PINCTRL_PIN(STN8815_PIN_M1, "GPIO49_M1"),
191         PINCTRL_PIN(STN8815_PIN_M3, "GPIO50_M3"),
192         PINCTRL_PIN(STN8815_PIN_M2, "GPIO51_M2"),
193         PINCTRL_PIN(STN8815_PIN_L1, "GPIO52_L1"),
194         PINCTRL_PIN(STN8815_PIN_L4, "GPIO53_L4"),
195         PINCTRL_PIN(STN8815_PIN_L3, "GPIO54_L3"),
196         PINCTRL_PIN(STN8815_PIN_L2, "GPIO55_L2"),
197         PINCTRL_PIN(STN8815_PIN_F3, "GPIO56_F3"),
198         PINCTRL_PIN(STN8815_PIN_F2, "GPIO57_F2"),
199         PINCTRL_PIN(STN8815_PIN_E1, "GPIO58_E1"),
200         PINCTRL_PIN(STN8815_PIN_E3, "GPIO59_E3"),
201         PINCTRL_PIN(STN8815_PIN_E2, "GPIO60_E2"),
202         PINCTRL_PIN(STN8815_PIN_E4, "GPIO61_E4"),
203         PINCTRL_PIN(STN8815_PIN_D3, "GPIO62_D3"),
204         PINCTRL_PIN(STN8815_PIN_D2, "GPIO63_D2"),
205         PINCTRL_PIN(STN8815_PIN_F21, "GPIO64_F21"),
206         PINCTRL_PIN(STN8815_PIN_F20, "GPIO65_F20"),
207         PINCTRL_PIN(STN8815_PIN_E22, "GPIO66_E22"),
208         PINCTRL_PIN(STN8815_PIN_D22, "GPIO67_D22"),
209         PINCTRL_PIN(STN8815_PIN_E21, "GPIO68_E21"),
210         PINCTRL_PIN(STN8815_PIN_E20, "GPIO69_E20"),
211         PINCTRL_PIN(STN8815_PIN_C22, "GPIO70_C22"),
212         PINCTRL_PIN(STN8815_PIN_D21, "GPIO71_D21"),
213         PINCTRL_PIN(STN8815_PIN_D20, "GPIO72_D20"),
214         PINCTRL_PIN(STN8815_PIN_C21, "GPIO73_C21"),
215         PINCTRL_PIN(STN8815_PIN_C20, "GPIO74_C20"),
216         PINCTRL_PIN(STN8815_PIN_C19, "GPIO75_C19"),
217         PINCTRL_PIN(STN8815_PIN_B20, "GPIO76_B20"),
218         PINCTRL_PIN(STN8815_PIN_B8, "GPIO77_B8"),
219         PINCTRL_PIN(STN8815_PIN_A8, "GPIO78_A8"),
220         PINCTRL_PIN(STN8815_PIN_C9, "GPIO79_C9"),
221         PINCTRL_PIN(STN8815_PIN_B9, "GPIO80_B9"),
222         PINCTRL_PIN(STN8815_PIN_A9, "GPIO81_A9"),
223         PINCTRL_PIN(STN8815_PIN_C10, "GPIO82_C10"),
224         PINCTRL_PIN(STN8815_PIN_K1, "GPIO83_K1"),
225         PINCTRL_PIN(STN8815_PIN_K3, "GPIO84_K3"),
226         PINCTRL_PIN(STN8815_PIN_K2, "GPIO85_K2"),
227         PINCTRL_PIN(STN8815_PIN_J1, "GPIO86_J1"),
228         PINCTRL_PIN(STN8815_PIN_J3, "GPIO87_J3"),
229         PINCTRL_PIN(STN8815_PIN_J2, "GPIO88_J2"),
230         PINCTRL_PIN(STN8815_PIN_H1, "GPIO89_H1"),
231         PINCTRL_PIN(STN8815_PIN_H3, "GPIO90_H3"),
232         PINCTRL_PIN(STN8815_PIN_H2, "GPIO91_H2"),
233         PINCTRL_PIN(STN8815_PIN_G1, "GPIO92_G1"),
234         PINCTRL_PIN(STN8815_PIN_G3, "GPIO93_G3"),
235         PINCTRL_PIN(STN8815_PIN_G2, "GPIO94_G2"),
236         PINCTRL_PIN(STN8815_PIN_F1, "GPIO95_F1"),
237         PINCTRL_PIN(STN8815_PIN_T20, "GPIO96_T20"),
238         PINCTRL_PIN(STN8815_PIN_R21, "GPIO97_R21"),
239         PINCTRL_PIN(STN8815_PIN_R20, "GPIO98_R20"),
240         PINCTRL_PIN(STN8815_PIN_U22, "GPIO99_U22"),
241         PINCTRL_PIN(STN8815_PIN_N21, "GPIO100_N21"),
242         PINCTRL_PIN(STN8815_PIN_N20, "GPIO101_N20"),
243         PINCTRL_PIN(STN8815_PIN_P22, "GPIO102_P22"),
244         PINCTRL_PIN(STN8815_PIN_N22, "GPIO103_N22"),
245         PINCTRL_PIN(STN8815_PIN_V22, "GPIO104_V22"),
246         PINCTRL_PIN(STN8815_PIN_V21, "GPIO105_V21"),
247         PINCTRL_PIN(STN8815_PIN_K22, "GPIO106_K22"),
248         PINCTRL_PIN(STN8815_PIN_K21, "GPIO107_K21"),
249         PINCTRL_PIN(STN8815_PIN_H20, "GPIO108_H20"),
250         PINCTRL_PIN(STN8815_PIN_G20, "GPIO109_G20"),
251         PINCTRL_PIN(STN8815_PIN_L21, "GPIO110_L21"),
252         PINCTRL_PIN(STN8815_PIN_H21, "GPIO111_H21"),
253         PINCTRL_PIN(STN8815_PIN_J21, "GPIO112_J21"),
254         PINCTRL_PIN(STN8815_PIN_H22, "GPIO113_H22"),
255         PINCTRL_PIN(STN8815_PIN_K20, "GPIO114_K20"),
256         PINCTRL_PIN(STN8815_PIN_L22, "GPIO115_L22"),
257         PINCTRL_PIN(STN8815_PIN_G21, "GPIO116_G21"),
258         PINCTRL_PIN(STN8815_PIN_J20, "GPIO117_J20"),
259         PINCTRL_PIN(STN8815_PIN_G22, "GPIO118_G22"),
260         PINCTRL_PIN(STN8815_PIN_U19, "GPIO119_U19"),
261         PINCTRL_PIN(STN8815_PIN_G19, "GPIO120_G19"),
262         PINCTRL_PIN(STN8815_PIN_M22, "GPIO121_M22"),
263         PINCTRL_PIN(STN8815_PIN_M19, "GPIO122_M19"),
264         PINCTRL_PIN(STN8815_PIN_J22, "GPIO123_J22"),
265 };
266
267 #define STN8815_GPIO_RANGE(a, b, c) { .name = "STN8815", .id = a, .base = b, \
268                         .pin_base = b, .npins = c }
269
270 /*
271  * This matches the 32-pin gpio chips registered by the GPIO portion. This
272  * cannot be const since we assign the struct gpio_chip * pointer at runtime.
273  */
274 static struct pinctrl_gpio_range nmk_stn8815_ranges[] = {
275         STN8815_GPIO_RANGE(0, 0, 32),
276         STN8815_GPIO_RANGE(1, 32, 32),
277         STN8815_GPIO_RANGE(2, 64, 32),
278         STN8815_GPIO_RANGE(3, 96, 28),
279 };
280
281 /*
282  * Read the pin group names like this:
283  * u0_a_1    = first groups of pins for uart0 on alt function a
284  * i2c2_b_2  = second group of pins for i2c2 on alt function b
285  */
286
287 /* Altfunction A */
288 static const unsigned u0_a_1_pins[] = { STN8815_PIN_B4, STN8815_PIN_D5,
289         STN8815_PIN_C5, STN8815_PIN_A4, STN8815_PIN_B5, STN8815_PIN_D6,
290         STN8815_PIN_C6, STN8815_PIN_B6 };
291 static const unsigned mmcsd_a_1_pins[] = { STN8815_PIN_B10, STN8815_PIN_A10,
292         STN8815_PIN_C11, STN8815_PIN_B11, STN8815_PIN_A11, STN8815_PIN_C12,
293         STN8815_PIN_B12, STN8815_PIN_A12, STN8815_PIN_C13, STN8815_PIN_C15 };
294 static const unsigned u1_a_1_pins[] = { STN8815_PIN_M2, STN8815_PIN_L1,
295                                         STN8815_PIN_F3, STN8815_PIN_F2 };
296 static const unsigned i2c1_a_1_pins[] = { STN8815_PIN_L4, STN8815_PIN_L3 };
297 static const unsigned i2c0_a_1_pins[] = { STN8815_PIN_D3, STN8815_PIN_D2 };
298 /* Altfunction B */
299 static const unsigned u1_b_1_pins[] = { STN8815_PIN_B16, STN8815_PIN_A16 };
300 static const unsigned i2cusb_b_1_pins[] = { STN8815_PIN_C21, STN8815_PIN_C20 };
301
302 #define STN8815_PIN_GROUP(a, b) { .name = #a, .pins = a##_pins,         \
303                         .npins = ARRAY_SIZE(a##_pins), .altsetting = b }
304
305 static const struct nmk_pingroup nmk_stn8815_groups[] = {
306         STN8815_PIN_GROUP(u0_a_1, NMK_GPIO_ALT_A),
307         STN8815_PIN_GROUP(mmcsd_a_1, NMK_GPIO_ALT_A),
308         STN8815_PIN_GROUP(u1_a_1, NMK_GPIO_ALT_A),
309         STN8815_PIN_GROUP(i2c1_a_1, NMK_GPIO_ALT_A),
310         STN8815_PIN_GROUP(i2c0_a_1, NMK_GPIO_ALT_A),
311         STN8815_PIN_GROUP(u1_b_1, NMK_GPIO_ALT_B),
312         STN8815_PIN_GROUP(i2cusb_b_1, NMK_GPIO_ALT_B),
313 };
314
315 /* We use this macro to define the groups applicable to a function */
316 #define STN8815_FUNC_GROUPS(a, b...)       \
317 static const char * const a##_groups[] = { b };
318
319 STN8815_FUNC_GROUPS(u0, "u0_a_1");
320 STN8815_FUNC_GROUPS(mmcsd, "mmcsd_a_1");
321 STN8815_FUNC_GROUPS(u1, "u1_a_1", "u1_b_1");
322 STN8815_FUNC_GROUPS(i2c1, "i2c1_a_1");
323 STN8815_FUNC_GROUPS(i2c0, "i2c0_a_1");
324 STN8815_FUNC_GROUPS(i2cusb, "i2cusb_b_1");
325
326 #define FUNCTION(fname)                                 \
327         {                                               \
328                 .name = #fname,                         \
329                 .groups = fname##_groups,               \
330                 .ngroups = ARRAY_SIZE(fname##_groups),  \
331         }
332
333 static const struct nmk_function nmk_stn8815_functions[] = {
334         FUNCTION(u0),
335         FUNCTION(mmcsd),
336         FUNCTION(u1),
337         FUNCTION(i2c1),
338         FUNCTION(i2c0),
339         FUNCTION(i2cusb),
340 };
341
342 static const struct nmk_pinctrl_soc_data nmk_stn8815_soc = {
343         .gpio_ranges = nmk_stn8815_ranges,
344         .gpio_num_ranges = ARRAY_SIZE(nmk_stn8815_ranges),
345         .pins = nmk_stn8815_pins,
346         .npins = ARRAY_SIZE(nmk_stn8815_pins),
347         .functions = nmk_stn8815_functions,
348         .nfunctions = ARRAY_SIZE(nmk_stn8815_functions),
349         .groups = nmk_stn8815_groups,
350         .ngroups = ARRAY_SIZE(nmk_stn8815_groups),
351 };
352
353 void nmk_pinctrl_stn8815_init(const struct nmk_pinctrl_soc_data **soc)
354 {
355         *soc = &nmk_stn8815_soc;
356 }