1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Lochnagar pin and GPIO control
4 *
5 * Copyright (c) 2017-2018 Cirrus Logic, Inc. and
6 * Cirrus Logic International Semiconductor Ltd.
7 *
8 * Author: Charles Keepax <ckeepax@opensource.cirrus.com>
9 */
10
11 #include <linux/err.h>
12 #include <linux/errno.h>
13 #include <linux/gpio/driver.h>
14 #include <linux/module.h>
15 #include <linux/of.h>
16 #include <linux/platform_device.h>
17 #include <linux/regmap.h>
18
19 #include <linux/pinctrl/consumer.h>
20 #include <linux/pinctrl/pinconf-generic.h>
21 #include <linux/pinctrl/pinconf.h>
22 #include <linux/pinctrl/pinctrl.h>
23 #include <linux/pinctrl/pinmux.h>
24
25 #include <linux/mfd/lochnagar.h>
26 #include <linux/mfd/lochnagar1_regs.h>
27 #include <linux/mfd/lochnagar2_regs.h>
28
29 #include <dt-bindings/pinctrl/lochnagar.h>
30
31 #include "../pinctrl-utils.h"
32
33 #define LN2_NUM_GPIO_CHANNELS 16
34
35 #define LN_CDC_AIF1_STR "codec-aif1"
36 #define LN_CDC_AIF2_STR "codec-aif2"
37 #define LN_CDC_AIF3_STR "codec-aif3"
38 #define LN_DSP_AIF1_STR "dsp-aif1"
39 #define LN_DSP_AIF2_STR "dsp-aif2"
40 #define LN_PSIA1_STR "psia1"
41 #define LN_PSIA2_STR "psia2"
42 #define LN_GF_AIF1_STR "gf-aif1"
43 #define LN_GF_AIF2_STR "gf-aif2"
44 #define LN_GF_AIF3_STR "gf-aif3"
45 #define LN_GF_AIF4_STR "gf-aif4"
46 #define LN_SPDIF_AIF_STR "spdif-aif"
47 #define LN_USB_AIF1_STR "usb-aif1"
48 #define LN_USB_AIF2_STR "usb-aif2"
49 #define LN_ADAT_AIF_STR "adat-aif"
50 #define LN_SOUNDCARD_AIF_STR "soundcard-aif"
51
52 #define LN_PIN_GPIO(REV, ID, NAME, REG, SHIFT, INVERT) \
53 static const struct lochnagar_pin lochnagar##REV##_##ID##_pin = { \
54 .name = NAME, .type = LN_PTYPE_GPIO, .reg = LOCHNAGAR##REV##_##REG, \
55 .shift = LOCHNAGAR##REV##_##SHIFT##_SHIFT, .invert = INVERT, \
56 }
57
58 #define LN_PIN_SAIF(REV, ID, NAME) \
59 static const struct lochnagar_pin lochnagar##REV##_##ID##_pin = \
60 { .name = NAME, .type = LN_PTYPE_AIF, }
61
62 #define LN_PIN_AIF(REV, ID) \
63 LN_PIN_SAIF(REV, ID##_BCLK, LN_##ID##_STR"-bclk"); \
64 LN_PIN_SAIF(REV, ID##_LRCLK, LN_##ID##_STR"-lrclk"); \
65 LN_PIN_SAIF(REV, ID##_RXDAT, LN_##ID##_STR"-rxdat"); \
66 LN_PIN_SAIF(REV, ID##_TXDAT, LN_##ID##_STR"-txdat")
67
68 #define LN1_PIN_GPIO(ID, NAME, REG, SHIFT, INVERT) \
69 LN_PIN_GPIO(1, ID, NAME, REG, SHIFT, INVERT)
70
71 #define LN1_PIN_MUX(ID, NAME) \
72 static const struct lochnagar_pin lochnagar1_##ID##_pin = \
73 { .name = NAME, .type = LN_PTYPE_MUX, .reg = LOCHNAGAR1_##ID, }
74
75 #define LN1_PIN_AIF(ID) LN_PIN_AIF(1, ID)
76
77 #define LN2_PIN_GPIO(ID, NAME, REG, SHIFT, INVERT) \
78 LN_PIN_GPIO(2, ID, NAME, REG, SHIFT, INVERT)
79
80 #define LN2_PIN_MUX(ID, NAME) \
81 static const struct lochnagar_pin lochnagar2_##ID##_pin = \
82 { .name = NAME, .type = LN_PTYPE_MUX, .reg = LOCHNAGAR2_GPIO_##ID, }
83
84 #define LN2_PIN_AIF(ID) LN_PIN_AIF(2, ID)
85
86 #define LN2_PIN_GAI(ID) \
87 LN2_PIN_MUX(ID##_BCLK, LN_##ID##_STR"-bclk"); \
88 LN2_PIN_MUX(ID##_LRCLK, LN_##ID##_STR"-lrclk"); \
89 LN2_PIN_MUX(ID##_RXDAT, LN_##ID##_STR"-rxdat"); \
90 LN2_PIN_MUX(ID##_TXDAT, LN_##ID##_STR"-txdat")
91
92 #define LN_PIN(REV, ID) [LOCHNAGAR##REV##_PIN_##ID] = { \
93 .number = LOCHNAGAR##REV##_PIN_##ID, \
94 .name = lochnagar##REV##_##ID##_pin.name, \
95 .drv_data = (void *)&lochnagar##REV##_##ID##_pin, \
96 }
97
98 #define LN1_PIN(ID) LN_PIN(1, ID)
99 #define LN2_PIN(ID) LN_PIN(2, ID)
100
101 #define LN_PINS(REV, ID) \
102 LN_PIN(REV, ID##_BCLK), LN_PIN(REV, ID##_LRCLK), \
103 LN_PIN(REV, ID##_RXDAT), LN_PIN(REV, ID##_TXDAT)
104
105 #define LN1_PINS(ID) LN_PINS(1, ID)
106 #define LN2_PINS(ID) LN_PINS(2, ID)
107
108 enum {
109 LOCHNAGAR1_PIN_GF_GPIO2 = LOCHNAGAR1_PIN_NUM_GPIOS,
110 LOCHNAGAR1_PIN_GF_GPIO3,
111 LOCHNAGAR1_PIN_GF_GPIO7,
112 LOCHNAGAR1_PIN_LED1,
113 LOCHNAGAR1_PIN_LED2,
114 LOCHNAGAR1_PIN_CDC_AIF1_BCLK,
115 LOCHNAGAR1_PIN_CDC_AIF1_LRCLK,
116 LOCHNAGAR1_PIN_CDC_AIF1_RXDAT,
117 LOCHNAGAR1_PIN_CDC_AIF1_TXDAT,
118 LOCHNAGAR1_PIN_CDC_AIF2_BCLK,
119 LOCHNAGAR1_PIN_CDC_AIF2_LRCLK,
120 LOCHNAGAR1_PIN_CDC_AIF2_RXDAT,
121 LOCHNAGAR1_PIN_CDC_AIF2_TXDAT,
122 LOCHNAGAR1_PIN_CDC_AIF3_BCLK,
123 LOCHNAGAR1_PIN_CDC_AIF3_LRCLK,
124 LOCHNAGAR1_PIN_CDC_AIF3_RXDAT,
125 LOCHNAGAR1_PIN_CDC_AIF3_TXDAT,
126 LOCHNAGAR1_PIN_DSP_AIF1_BCLK,
127 LOCHNAGAR1_PIN_DSP_AIF1_LRCLK,
128 LOCHNAGAR1_PIN_DSP_AIF1_RXDAT,
129 LOCHNAGAR1_PIN_DSP_AIF1_TXDAT,
130 LOCHNAGAR1_PIN_DSP_AIF2_BCLK,
131 LOCHNAGAR1_PIN_DSP_AIF2_LRCLK,
132 LOCHNAGAR1_PIN_DSP_AIF2_RXDAT,
133 LOCHNAGAR1_PIN_DSP_AIF2_TXDAT,
134 LOCHNAGAR1_PIN_PSIA1_BCLK,
135 LOCHNAGAR1_PIN_PSIA1_LRCLK,
136 LOCHNAGAR1_PIN_PSIA1_RXDAT,
137 LOCHNAGAR1_PIN_PSIA1_TXDAT,
138 LOCHNAGAR1_PIN_PSIA2_BCLK,
139 LOCHNAGAR1_PIN_PSIA2_LRCLK,
140 LOCHNAGAR1_PIN_PSIA2_RXDAT,
141 LOCHNAGAR1_PIN_PSIA2_TXDAT,
142 LOCHNAGAR1_PIN_SPDIF_AIF_BCLK,
143 LOCHNAGAR1_PIN_SPDIF_AIF_LRCLK,
144 LOCHNAGAR1_PIN_SPDIF_AIF_RXDAT,
145 LOCHNAGAR1_PIN_SPDIF_AIF_TXDAT,
146 LOCHNAGAR1_PIN_GF_AIF3_BCLK,
147 LOCHNAGAR1_PIN_GF_AIF3_RXDAT,
148 LOCHNAGAR1_PIN_GF_AIF3_LRCLK,
149 LOCHNAGAR1_PIN_GF_AIF3_TXDAT,
150 LOCHNAGAR1_PIN_GF_AIF4_BCLK,
151 LOCHNAGAR1_PIN_GF_AIF4_RXDAT,
152 LOCHNAGAR1_PIN_GF_AIF4_LRCLK,
153 LOCHNAGAR1_PIN_GF_AIF4_TXDAT,
154 LOCHNAGAR1_PIN_GF_AIF1_BCLK,
155 LOCHNAGAR1_PIN_GF_AIF1_RXDAT,
156 LOCHNAGAR1_PIN_GF_AIF1_LRCLK,
157 LOCHNAGAR1_PIN_GF_AIF1_TXDAT,
158 LOCHNAGAR1_PIN_GF_AIF2_BCLK,
159 LOCHNAGAR1_PIN_GF_AIF2_RXDAT,
160 LOCHNAGAR1_PIN_GF_AIF2_LRCLK,
161 LOCHNAGAR1_PIN_GF_AIF2_TXDAT,
162
163 LOCHNAGAR2_PIN_SPDIF_AIF_BCLK = LOCHNAGAR2_PIN_NUM_GPIOS,
164 LOCHNAGAR2_PIN_SPDIF_AIF_LRCLK,
165 LOCHNAGAR2_PIN_SPDIF_AIF_RXDAT,
166 LOCHNAGAR2_PIN_SPDIF_AIF_TXDAT,
167 LOCHNAGAR2_PIN_USB_AIF1_BCLK,
168 LOCHNAGAR2_PIN_USB_AIF1_LRCLK,
169 LOCHNAGAR2_PIN_USB_AIF1_RXDAT,
170 LOCHNAGAR2_PIN_USB_AIF1_TXDAT,
171 LOCHNAGAR2_PIN_USB_AIF2_BCLK,
172 LOCHNAGAR2_PIN_USB_AIF2_LRCLK,
173 LOCHNAGAR2_PIN_USB_AIF2_RXDAT,
174 LOCHNAGAR2_PIN_USB_AIF2_TXDAT,
175 LOCHNAGAR2_PIN_ADAT_AIF_BCLK,
176 LOCHNAGAR2_PIN_ADAT_AIF_LRCLK,
177 LOCHNAGAR2_PIN_ADAT_AIF_RXDAT,
178 LOCHNAGAR2_PIN_ADAT_AIF_TXDAT,
179 LOCHNAGAR2_PIN_SOUNDCARD_AIF_BCLK,
180 LOCHNAGAR2_PIN_SOUNDCARD_AIF_LRCLK,
181 LOCHNAGAR2_PIN_SOUNDCARD_AIF_RXDAT,
182 LOCHNAGAR2_PIN_SOUNDCARD_AIF_TXDAT,
183 };
184
185 enum lochnagar_pin_type {
186 LN_PTYPE_GPIO,
187 LN_PTYPE_MUX,
188 LN_PTYPE_AIF,
189 LN_PTYPE_COUNT,
190 };
191
192 struct lochnagar_pin {
193 const char name[20];
194
195 enum lochnagar_pin_type type;
196
197 unsigned int reg;
198 int shift;
199 bool invert;
200 };
201
202 LN1_PIN_GPIO(CDC_RESET, "codec-reset", RST, CDC_RESET, 1);
203 LN1_PIN_GPIO(DSP_RESET, "dsp-reset", RST, DSP_RESET, 1);
204 LN1_PIN_GPIO(CDC_CIF1MODE, "codec-cif1mode", I2C_CTRL, CDC_CIF_MODE, 0);
205 LN1_PIN_MUX(GF_GPIO2, "gf-gpio2");
206 LN1_PIN_MUX(GF_GPIO3, "gf-gpio3");
207 LN1_PIN_MUX(GF_GPIO7, "gf-gpio7");
208 LN1_PIN_MUX(LED1, "led1");
209 LN1_PIN_MUX(LED2, "led2");
210 LN1_PIN_AIF(CDC_AIF1);
211 LN1_PIN_AIF(CDC_AIF2);
212 LN1_PIN_AIF(CDC_AIF3);
213 LN1_PIN_AIF(DSP_AIF1);
214 LN1_PIN_AIF(DSP_AIF2);
215 LN1_PIN_AIF(PSIA1);
216 LN1_PIN_AIF(PSIA2);
217 LN1_PIN_AIF(SPDIF_AIF);
218 LN1_PIN_AIF(GF_AIF1);
219 LN1_PIN_AIF(GF_AIF2);
220 LN1_PIN_AIF(GF_AIF3);
221 LN1_PIN_AIF(GF_AIF4);
222
223 LN2_PIN_GPIO(CDC_RESET, "codec-reset", MINICARD_RESETS, CDC_RESET, 1);
224 LN2_PIN_GPIO(DSP_RESET, "dsp-reset", MINICARD_RESETS, DSP_RESET, 1);
225 LN2_PIN_GPIO(CDC_CIF1MODE, "codec-cif1mode", COMMS_CTRL4, CDC_CIF1MODE, 0);
226 LN2_PIN_GPIO(CDC_LDOENA, "codec-ldoena", POWER_CTRL, PWR_ENA, 0);
227 LN2_PIN_GPIO(SPDIF_HWMODE, "spdif-hwmode", SPDIF_CTRL, SPDIF_HWMODE, 0);
228 LN2_PIN_GPIO(SPDIF_RESET, "spdif-reset", SPDIF_CTRL, SPDIF_RESET, 1);
229 LN2_PIN_MUX(FPGA_GPIO1, "fpga-gpio1");
230 LN2_PIN_MUX(FPGA_GPIO2, "fpga-gpio2");
231 LN2_PIN_MUX(FPGA_GPIO3, "fpga-gpio3");
232 LN2_PIN_MUX(FPGA_GPIO4, "fpga-gpio4");
233 LN2_PIN_MUX(FPGA_GPIO5, "fpga-gpio5");
234 LN2_PIN_MUX(FPGA_GPIO6, "fpga-gpio6");
235 LN2_PIN_MUX(CDC_GPIO1, "codec-gpio1");
236 LN2_PIN_MUX(CDC_GPIO2, "codec-gpio2");
237 LN2_PIN_MUX(CDC_GPIO3, "codec-gpio3");
238 LN2_PIN_MUX(CDC_GPIO4, "codec-gpio4");
239 LN2_PIN_MUX(CDC_GPIO5, "codec-gpio5");
240 LN2_PIN_MUX(CDC_GPIO6, "codec-gpio6");
241 LN2_PIN_MUX(CDC_GPIO7, "codec-gpio7");
242 LN2_PIN_MUX(CDC_GPIO8, "codec-gpio8");
243 LN2_PIN_MUX(DSP_GPIO1, "dsp-gpio1");
244 LN2_PIN_MUX(DSP_GPIO2, "dsp-gpio2");
245 LN2_PIN_MUX(DSP_GPIO3, "dsp-gpio3");
246 LN2_PIN_MUX(DSP_GPIO4, "dsp-gpio4");
247 LN2_PIN_MUX(DSP_GPIO5, "dsp-gpio5");
248 LN2_PIN_MUX(DSP_GPIO6, "dsp-gpio6");
249 LN2_PIN_MUX(GF_GPIO2, "gf-gpio2");
250 LN2_PIN_MUX(GF_GPIO3, "gf-gpio3");
251 LN2_PIN_MUX(GF_GPIO7, "gf-gpio7");
252 LN2_PIN_MUX(DSP_UART1_RX, "dsp-uart1-rx");
253 LN2_PIN_MUX(DSP_UART1_TX, "dsp-uart1-tx");
254 LN2_PIN_MUX(DSP_UART2_RX, "dsp-uart2-rx");
255 LN2_PIN_MUX(DSP_UART2_TX, "dsp-uart2-tx");
256 LN2_PIN_MUX(GF_UART2_RX, "gf-uart2-rx");
257 LN2_PIN_MUX(GF_UART2_TX, "gf-uart2-tx");
258 LN2_PIN_MUX(USB_UART_RX, "usb-uart-rx");
259 LN2_PIN_MUX(CDC_PDMCLK1, "codec-pdmclk1");
260 LN2_PIN_MUX(CDC_PDMDAT1, "codec-pdmdat1");
261 LN2_PIN_MUX(CDC_PDMCLK2, "codec-pdmclk2");
262 LN2_PIN_MUX(CDC_PDMDAT2, "codec-pdmdat2");
263 LN2_PIN_MUX(CDC_DMICCLK1, "codec-dmicclk1");
264 LN2_PIN_MUX(CDC_DMICDAT1, "codec-dmicdat1");
265 LN2_PIN_MUX(CDC_DMICCLK2, "codec-dmicclk2");
266 LN2_PIN_MUX(CDC_DMICDAT2, "codec-dmicdat2");
267 LN2_PIN_MUX(CDC_DMICCLK3, "codec-dmicclk3");
268 LN2_PIN_MUX(CDC_DMICDAT3, "codec-dmicdat3");
269 LN2_PIN_MUX(CDC_DMICCLK4, "codec-dmicclk4");
270 LN2_PIN_MUX(CDC_DMICDAT4, "codec-dmicdat4");
271 LN2_PIN_MUX(DSP_DMICCLK1, "dsp-dmicclk1");
272 LN2_PIN_MUX(DSP_DMICDAT1, "dsp-dmicdat1");
273 LN2_PIN_MUX(DSP_DMICCLK2, "dsp-dmicclk2");
274 LN2_PIN_MUX(DSP_DMICDAT2, "dsp-dmicdat2");
275 LN2_PIN_MUX(I2C2_SCL, "i2c2-scl");
276 LN2_PIN_MUX(I2C2_SDA, "i2c2-sda");
277 LN2_PIN_MUX(I2C3_SCL, "i2c3-scl");
278 LN2_PIN_MUX(I2C3_SDA, "i2c3-sda");
279 LN2_PIN_MUX(I2C4_SCL, "i2c4-scl");
280 LN2_PIN_MUX(I2C4_SDA, "i2c4-sda");
281 LN2_PIN_MUX(DSP_STANDBY, "dsp-standby");
282 LN2_PIN_MUX(CDC_MCLK1, "codec-mclk1");
283 LN2_PIN_MUX(CDC_MCLK2, "codec-mclk2");
284 LN2_PIN_MUX(DSP_CLKIN, "dsp-clkin");
285 LN2_PIN_MUX(PSIA1_MCLK, "psia1-mclk");
286 LN2_PIN_MUX(PSIA2_MCLK, "psia2-mclk");
287 LN2_PIN_MUX(GF_GPIO1, "gf-gpio1");
288 LN2_PIN_MUX(GF_GPIO5, "gf-gpio5");
289 LN2_PIN_MUX(DSP_GPIO20, "dsp-gpio20");
290 LN2_PIN_GAI(CDC_AIF1);
291 LN2_PIN_GAI(CDC_AIF2);
292 LN2_PIN_GAI(CDC_AIF3);
293 LN2_PIN_GAI(DSP_AIF1);
294 LN2_PIN_GAI(DSP_AIF2);
295 LN2_PIN_GAI(PSIA1);
296 LN2_PIN_GAI(PSIA2);
297 LN2_PIN_GAI(GF_AIF1);
298 LN2_PIN_GAI(GF_AIF2);
299 LN2_PIN_GAI(GF_AIF3);
300 LN2_PIN_GAI(GF_AIF4);
301 LN2_PIN_AIF(SPDIF_AIF);
302 LN2_PIN_AIF(USB_AIF1);
303 LN2_PIN_AIF(USB_AIF2);
304 LN2_PIN_AIF(ADAT_AIF);
305 LN2_PIN_AIF(SOUNDCARD_AIF);
306
307 static const struct pinctrl_pin_desc lochnagar1_pins[] = {
308 LN1_PIN(CDC_RESET), LN1_PIN(DSP_RESET), LN1_PIN(CDC_CIF1MODE),
309 LN1_PIN(GF_GPIO2), LN1_PIN(GF_GPIO3), LN1_PIN(GF_GPIO7),
310 LN1_PIN(LED1), LN1_PIN(LED2),
311 LN1_PINS(CDC_AIF1), LN1_PINS(CDC_AIF2), LN1_PINS(CDC_AIF3),
312 LN1_PINS(DSP_AIF1), LN1_PINS(DSP_AIF2),
313 LN1_PINS(PSIA1), LN1_PINS(PSIA2),
314 LN1_PINS(SPDIF_AIF),
315 LN1_PINS(GF_AIF1), LN1_PINS(GF_AIF2),
316 LN1_PINS(GF_AIF3), LN1_PINS(GF_AIF4),
317 };
318
319 static const struct pinctrl_pin_desc lochnagar2_pins[] = {
320 LN2_PIN(CDC_RESET), LN2_PIN(DSP_RESET), LN2_PIN(CDC_CIF1MODE),
321 LN2_PIN(CDC_LDOENA),
322 LN2_PIN(SPDIF_HWMODE), LN2_PIN(SPDIF_RESET),
323 LN2_PIN(FPGA_GPIO1), LN2_PIN(FPGA_GPIO2), LN2_PIN(FPGA_GPIO3),
324 LN2_PIN(FPGA_GPIO4), LN2_PIN(FPGA_GPIO5), LN2_PIN(FPGA_GPIO6),
325 LN2_PIN(CDC_GPIO1), LN2_PIN(CDC_GPIO2), LN2_PIN(CDC_GPIO3),
326 LN2_PIN(CDC_GPIO4), LN2_PIN(CDC_GPIO5), LN2_PIN(CDC_GPIO6),
327 LN2_PIN(CDC_GPIO7), LN2_PIN(CDC_GPIO8),
328 LN2_PIN(DSP_GPIO1), LN2_PIN(DSP_GPIO2), LN2_PIN(DSP_GPIO3),
329 LN2_PIN(DSP_GPIO4), LN2_PIN(DSP_GPIO5), LN2_PIN(DSP_GPIO6),
330 LN2_PIN(DSP_GPIO20),
331 LN2_PIN(GF_GPIO1), LN2_PIN(GF_GPIO2), LN2_PIN(GF_GPIO3),
332 LN2_PIN(GF_GPIO5), LN2_PIN(GF_GPIO7),
333 LN2_PINS(CDC_AIF1), LN2_PINS(CDC_AIF2), LN2_PINS(CDC_AIF3),
334 LN2_PINS(DSP_AIF1), LN2_PINS(DSP_AIF2),
335 LN2_PINS(PSIA1), LN2_PINS(PSIA2),
336 LN2_PINS(GF_AIF1), LN2_PINS(GF_AIF2),
337 LN2_PINS(GF_AIF3), LN2_PINS(GF_AIF4),
338 LN2_PIN(DSP_UART1_RX), LN2_PIN(DSP_UART1_TX),
339 LN2_PIN(DSP_UART2_RX), LN2_PIN(DSP_UART2_TX),
340 LN2_PIN(GF_UART2_RX), LN2_PIN(GF_UART2_TX),
341 LN2_PIN(USB_UART_RX),
342 LN2_PIN(CDC_PDMCLK1), LN2_PIN(CDC_PDMDAT1),
343 LN2_PIN(CDC_PDMCLK2), LN2_PIN(CDC_PDMDAT2),
344 LN2_PIN(CDC_DMICCLK1), LN2_PIN(CDC_DMICDAT1),
345 LN2_PIN(CDC_DMICCLK2), LN2_PIN(CDC_DMICDAT2),
346 LN2_PIN(CDC_DMICCLK3), LN2_PIN(CDC_DMICDAT3),
347 LN2_PIN(CDC_DMICCLK4), LN2_PIN(CDC_DMICDAT4),
348 LN2_PIN(DSP_DMICCLK1), LN2_PIN(DSP_DMICDAT1),
349 LN2_PIN(DSP_DMICCLK2), LN2_PIN(DSP_DMICDAT2),
350 LN2_PIN(I2C2_SCL), LN2_PIN(I2C2_SDA),
351 LN2_PIN(I2C3_SCL), LN2_PIN(I2C3_SDA),
352 LN2_PIN(I2C4_SCL), LN2_PIN(I2C4_SDA),
353 LN2_PIN(DSP_STANDBY),
354 LN2_PIN(CDC_MCLK1), LN2_PIN(CDC_MCLK2),
355 LN2_PIN(DSP_CLKIN),
356 LN2_PIN(PSIA1_MCLK), LN2_PIN(PSIA2_MCLK),
357 LN2_PINS(SPDIF_AIF),
358 LN2_PINS(USB_AIF1), LN2_PINS(USB_AIF2),
359 LN2_PINS(ADAT_AIF),
360 LN2_PINS(SOUNDCARD_AIF),
361 };
362
363 #define LN_AIF_PINS(REV, ID) \
364 LOCHNAGAR##REV##_PIN_##ID##_BCLK, \
365 LOCHNAGAR##REV##_PIN_##ID##_LRCLK, \
366 LOCHNAGAR##REV##_PIN_##ID##_TXDAT, \
367 LOCHNAGAR##REV##_PIN_##ID##_RXDAT,
368
369 #define LN1_AIF(ID, CTRL) \
370 static const struct lochnagar_aif lochnagar1_##ID##_aif = { \
371 .name = LN_##ID##_STR, \
372 .pins = { LN_AIF_PINS(1, ID) }, \
373 .src_reg = LOCHNAGAR1_##ID##_SEL, \
374 .src_mask = LOCHNAGAR1_SRC_MASK, \
375 .ctrl_reg = LOCHNAGAR1_##CTRL, \
376 .ena_mask = LOCHNAGAR1_##ID##_ENA_MASK, \
377 .master_mask = LOCHNAGAR1_##ID##_LRCLK_DIR_MASK | \
378 LOCHNAGAR1_##ID##_BCLK_DIR_MASK, \
379 }
380
381 #define LN2_AIF(ID) \
382 static const struct lochnagar_aif lochnagar2_##ID##_aif = { \
383 .name = LN_##ID##_STR, \
384 .pins = { LN_AIF_PINS(2, ID) }, \
385 .src_reg = LOCHNAGAR2_##ID##_CTRL, \
386 .src_mask = LOCHNAGAR2_AIF_SRC_MASK, \
387 .ctrl_reg = LOCHNAGAR2_##ID##_CTRL, \
388 .ena_mask = LOCHNAGAR2_AIF_ENA_MASK, \
389 .master_mask = LOCHNAGAR2_AIF_LRCLK_DIR_MASK | \
390 LOCHNAGAR2_AIF_BCLK_DIR_MASK, \
391 }
392
393 struct lochnagar_aif {
394 const char name[16];
395
396 unsigned int pins[4];
397
398 u16 src_reg;
399 u16 src_mask;
400
401 u16 ctrl_reg;
402 u16 ena_mask;
403 u16 master_mask;
404 };
405
406 LN1_AIF(CDC_AIF1, CDC_AIF_CTRL1);
407 LN1_AIF(CDC_AIF2, CDC_AIF_CTRL1);
408 LN1_AIF(CDC_AIF3, CDC_AIF_CTRL2);
409 LN1_AIF(DSP_AIF1, DSP_AIF);
410 LN1_AIF(DSP_AIF2, DSP_AIF);
411 LN1_AIF(PSIA1, PSIA_AIF);
412 LN1_AIF(PSIA2, PSIA_AIF);
413 LN1_AIF(GF_AIF1, GF_AIF1);
414 LN1_AIF(GF_AIF2, GF_AIF2);
415 LN1_AIF(GF_AIF3, GF_AIF1);
416 LN1_AIF(GF_AIF4, GF_AIF2);
417 LN1_AIF(SPDIF_AIF, EXT_AIF_CTRL);
418
419 LN2_AIF(CDC_AIF1);
420 LN2_AIF(CDC_AIF2);
421 LN2_AIF(CDC_AIF3);
422 LN2_AIF(DSP_AIF1);
423 LN2_AIF(DSP_AIF2);
424 LN2_AIF(PSIA1);
425 LN2_AIF(PSIA2);
426 LN2_AIF(GF_AIF1);
427 LN2_AIF(GF_AIF2);
428 LN2_AIF(GF_AIF3);
429 LN2_AIF(GF_AIF4);
430 LN2_AIF(SPDIF_AIF);
431 LN2_AIF(USB_AIF1);
432 LN2_AIF(USB_AIF2);
433 LN2_AIF(ADAT_AIF);
434 LN2_AIF(SOUNDCARD_AIF);
435
436 #define LN2_OP_AIF 0x00
437 #define LN2_OP_GPIO 0xFE
438
439 #define LN_FUNC(NAME, TYPE, OP) \
440 { .name = NAME, .type = LN_FTYPE_##TYPE, .op = OP }
441
442 #define LN_FUNC_PIN(REV, ID, OP) \
443 LN_FUNC(lochnagar##REV##_##ID##_pin.name, PIN, OP)
444
445 #define LN1_FUNC_PIN(ID, OP) LN_FUNC_PIN(1, ID, OP)
446 #define LN2_FUNC_PIN(ID, OP) LN_FUNC_PIN(2, ID, OP)
447
448 #define LN_FUNC_AIF(REV, ID, OP) \
449 LN_FUNC(lochnagar##REV##_##ID##_aif.name, AIF, OP)
450
451 #define LN1_FUNC_AIF(ID, OP) LN_FUNC_AIF(1, ID, OP)
452 #define LN2_FUNC_AIF(ID, OP) LN_FUNC_AIF(2, ID, OP)
453
454 #define LN2_FUNC_GAI(ID, OP, BOP, LROP, RXOP, TXOP) \
455 LN2_FUNC_AIF(ID, OP), \
456 LN_FUNC(lochnagar2_##ID##_BCLK_pin.name, PIN, BOP), \
457 LN_FUNC(lochnagar2_##ID##_LRCLK_pin.name, PIN, LROP), \
458 LN_FUNC(lochnagar2_##ID##_RXDAT_pin.name, PIN, RXOP), \
459 LN_FUNC(lochnagar2_##ID##_TXDAT_pin.name, PIN, TXOP)
460
461 enum lochnagar_func_type {
462 LN_FTYPE_PIN,
463 LN_FTYPE_AIF,
464 LN_FTYPE_COUNT,
465 };
466
467 struct lochnagar_func {
468 const char * const name;
469
470 enum lochnagar_func_type type;
471
472 u8 op;
473 };
474
475 static const struct lochnagar_func lochnagar1_funcs[] = {
476 LN_FUNC("dsp-gpio1", PIN, 0x01),
477 LN_FUNC("dsp-gpio2", PIN, 0x02),
478 LN_FUNC("dsp-gpio3", PIN, 0x03),
479 LN_FUNC("codec-gpio1", PIN, 0x04),
480 LN_FUNC("codec-gpio2", PIN, 0x05),
481 LN_FUNC("codec-gpio3", PIN, 0x06),
482 LN_FUNC("codec-gpio4", PIN, 0x07),
483 LN_FUNC("codec-gpio5", PIN, 0x08),
484 LN_FUNC("codec-gpio6", PIN, 0x09),
485 LN_FUNC("codec-gpio7", PIN, 0x0A),
486 LN_FUNC("codec-gpio8", PIN, 0x0B),
487 LN1_FUNC_PIN(GF_GPIO2, 0x0C),
488 LN1_FUNC_PIN(GF_GPIO3, 0x0D),
489 LN1_FUNC_PIN(GF_GPIO7, 0x0E),
490
491 LN1_FUNC_AIF(SPDIF_AIF, 0x01),
492 LN1_FUNC_AIF(PSIA1, 0x02),
493 LN1_FUNC_AIF(PSIA2, 0x03),
494 LN1_FUNC_AIF(CDC_AIF1, 0x04),
495 LN1_FUNC_AIF(CDC_AIF2, 0x05),
496 LN1_FUNC_AIF(CDC_AIF3, 0x06),
497 LN1_FUNC_AIF(DSP_AIF1, 0x07),
498 LN1_FUNC_AIF(DSP_AIF2, 0x08),
499 LN1_FUNC_AIF(GF_AIF3, 0x09),
500 LN1_FUNC_AIF(GF_AIF4, 0x0A),
501 LN1_FUNC_AIF(GF_AIF1, 0x0B),
502 LN1_FUNC_AIF(GF_AIF2, 0x0C),
503 };
504
505 static const struct lochnagar_func lochnagar2_funcs[] = {
506 LN_FUNC("aif", PIN, LN2_OP_AIF),
507 LN2_FUNC_PIN(FPGA_GPIO1, 0x01),
508 LN2_FUNC_PIN(FPGA_GPIO2, 0x02),
509 LN2_FUNC_PIN(FPGA_GPIO3, 0x03),
510 LN2_FUNC_PIN(FPGA_GPIO4, 0x04),
511 LN2_FUNC_PIN(FPGA_GPIO5, 0x05),
512 LN2_FUNC_PIN(FPGA_GPIO6, 0x06),
513 LN2_FUNC_PIN(CDC_GPIO1, 0x07),
514 LN2_FUNC_PIN(CDC_GPIO2, 0x08),
515 LN2_FUNC_PIN(CDC_GPIO3, 0x09),
516 LN2_FUNC_PIN(CDC_GPIO4, 0x0A),
517 LN2_FUNC_PIN(CDC_GPIO5, 0x0B),
518 LN2_FUNC_PIN(CDC_GPIO6, 0x0C),
519 LN2_FUNC_PIN(CDC_GPIO7, 0x0D),
520 LN2_FUNC_PIN(CDC_GPIO8, 0x0E),
521 LN2_FUNC_PIN(DSP_GPIO1, 0x0F),
522 LN2_FUNC_PIN(DSP_GPIO2, 0x10),
523 LN2_FUNC_PIN(DSP_GPIO3, 0x11),
524 LN2_FUNC_PIN(DSP_GPIO4, 0x12),
525 LN2_FUNC_PIN(DSP_GPIO5, 0x13),
526 LN2_FUNC_PIN(DSP_GPIO6, 0x14),
527 LN2_FUNC_PIN(GF_GPIO2, 0x15),
528 LN2_FUNC_PIN(GF_GPIO3, 0x16),
529 LN2_FUNC_PIN(GF_GPIO7, 0x17),
530 LN2_FUNC_PIN(GF_GPIO1, 0x18),
531 LN2_FUNC_PIN(GF_GPIO5, 0x19),
532 LN2_FUNC_PIN(DSP_GPIO20, 0x1A),
533 LN_FUNC("codec-clkout", PIN, 0x20),
534 LN_FUNC("dsp-clkout", PIN, 0x21),
535 LN_FUNC("pmic-32k", PIN, 0x22),
536 LN_FUNC("spdif-clkout", PIN, 0x23),
537 LN_FUNC("clk-12m288", PIN, 0x24),
538 LN_FUNC("clk-11m2986", PIN, 0x25),
539 LN_FUNC("clk-24m576", PIN, 0x26),
540 LN_FUNC("clk-22m5792", PIN, 0x27),
541 LN_FUNC("xmos-mclk", PIN, 0x29),
542 LN_FUNC("gf-clkout1", PIN, 0x2A),
543 LN_FUNC("gf-mclk1", PIN, 0x2B),
544 LN_FUNC("gf-mclk3", PIN, 0x2C),
545 LN_FUNC("gf-mclk2", PIN, 0x2D),
546 LN_FUNC("gf-clkout2", PIN, 0x2E),
547 LN2_FUNC_PIN(CDC_MCLK1, 0x2F),
548 LN2_FUNC_PIN(CDC_MCLK2, 0x30),
549 LN2_FUNC_PIN(DSP_CLKIN, 0x31),
550 LN2_FUNC_PIN(PSIA1_MCLK, 0x32),
551 LN2_FUNC_PIN(PSIA2_MCLK, 0x33),
552 LN_FUNC("spdif-mclk", PIN, 0x34),
553 LN_FUNC("codec-irq", PIN, 0x42),
554 LN2_FUNC_PIN(CDC_RESET, 0x43),
555 LN2_FUNC_PIN(DSP_RESET, 0x44),
556 LN_FUNC("dsp-irq", PIN, 0x45),
557 LN2_FUNC_PIN(DSP_STANDBY, 0x46),
558 LN2_FUNC_PIN(CDC_PDMCLK1, 0x90),
559 LN2_FUNC_PIN(CDC_PDMDAT1, 0x91),
560 LN2_FUNC_PIN(CDC_PDMCLK2, 0x92),
561 LN2_FUNC_PIN(CDC_PDMDAT2, 0x93),
562 LN2_FUNC_PIN(CDC_DMICCLK1, 0xA0),
563 LN2_FUNC_PIN(CDC_DMICDAT1, 0xA1),
564 LN2_FUNC_PIN(CDC_DMICCLK2, 0xA2),
565 LN2_FUNC_PIN(CDC_DMICDAT2, 0xA3),
566 LN2_FUNC_PIN(CDC_DMICCLK3, 0xA4),
567 LN2_FUNC_PIN(CDC_DMICDAT3, 0xA5),
568 LN2_FUNC_PIN(CDC_DMICCLK4, 0xA6),
569 LN2_FUNC_PIN(CDC_DMICDAT4, 0xA7),
570 LN2_FUNC_PIN(DSP_DMICCLK1, 0xA8),
571 LN2_FUNC_PIN(DSP_DMICDAT1, 0xA9),
572 LN2_FUNC_PIN(DSP_DMICCLK2, 0xAA),
573 LN2_FUNC_PIN(DSP_DMICDAT2, 0xAB),
574 LN2_FUNC_PIN(DSP_UART1_RX, 0xC0),
575 LN2_FUNC_PIN(DSP_UART1_TX, 0xC1),
576 LN2_FUNC_PIN(DSP_UART2_RX, 0xC2),
577 LN2_FUNC_PIN(DSP_UART2_TX, 0xC3),
578 LN2_FUNC_PIN(GF_UART2_RX, 0xC4),
579 LN2_FUNC_PIN(GF_UART2_TX, 0xC5),
580 LN2_FUNC_PIN(USB_UART_RX, 0xC6),
581 LN_FUNC("usb-uart-tx", PIN, 0xC7),
582 LN2_FUNC_PIN(I2C2_SCL, 0xE0),
583 LN2_FUNC_PIN(I2C2_SDA, 0xE1),
584 LN2_FUNC_PIN(I2C3_SCL, 0xE2),
585 LN2_FUNC_PIN(I2C3_SDA, 0xE3),
586 LN2_FUNC_PIN(I2C4_SCL, 0xE4),
587 LN2_FUNC_PIN(I2C4_SDA, 0xE5),
588
589 LN2_FUNC_AIF(SPDIF_AIF, 0x01),
590 LN2_FUNC_GAI(PSIA1, 0x02, 0x50, 0x51, 0x52, 0x53),
591 LN2_FUNC_GAI(PSIA2, 0x03, 0x54, 0x55, 0x56, 0x57),
592 LN2_FUNC_GAI(CDC_AIF1, 0x04, 0x59, 0x5B, 0x5A, 0x58),
593 LN2_FUNC_GAI(CDC_AIF2, 0x05, 0x5D, 0x5F, 0x5E, 0x5C),
594 LN2_FUNC_GAI(CDC_AIF3, 0x06, 0x61, 0x62, 0x63, 0x60),
595 LN2_FUNC_GAI(DSP_AIF1, 0x07, 0x65, 0x67, 0x66, 0x64),
596 LN2_FUNC_GAI(DSP_AIF2, 0x08, 0x69, 0x6B, 0x6A, 0x68),
597 LN2_FUNC_GAI(GF_AIF3, 0x09, 0x6D, 0x6F, 0x6C, 0x6E),
598 LN2_FUNC_GAI(GF_AIF4, 0x0A, 0x71, 0x73, 0x70, 0x72),
599 LN2_FUNC_GAI(GF_AIF1, 0x0B, 0x75, 0x77, 0x74, 0x76),
600 LN2_FUNC_GAI(GF_AIF2, 0x0C, 0x79, 0x7B, 0x78, 0x7A),
601 LN2_FUNC_AIF(USB_AIF1, 0x0D),
602 LN2_FUNC_AIF(USB_AIF2, 0x0E),
603 LN2_FUNC_AIF(ADAT_AIF, 0x0F),
604 LN2_FUNC_AIF(SOUNDCARD_AIF, 0x10),
605 };
606
607 #define LN_GROUP_PIN(REV, ID) { \
608 .name = lochnagar##REV##_##ID##_pin.name, \
609 .type = LN_FTYPE_PIN, \
610 .pins = &lochnagar##REV##_pins[LOCHNAGAR##REV##_PIN_##ID].number, \
611 .npins = 1, \
612 .priv = &lochnagar##REV##_pins[LOCHNAGAR##REV##_PIN_##ID], \
613 }
614
615 #define LN_GROUP_AIF(REV, ID) { \
616 .name = lochnagar##REV##_##ID##_aif.name, \
617 .type = LN_FTYPE_AIF, \
618 .pins = lochnagar##REV##_##ID##_aif.pins, \
619 .npins = ARRAY_SIZE(lochnagar##REV##_##ID##_aif.pins), \
620 .priv = &lochnagar##REV##_##ID##_aif, \
621 }
622
623 #define LN1_GROUP_PIN(ID) LN_GROUP_PIN(1, ID)
624 #define LN2_GROUP_PIN(ID) LN_GROUP_PIN(2, ID)
625
626 #define LN1_GROUP_AIF(ID) LN_GROUP_AIF(1, ID)
627 #define LN2_GROUP_AIF(ID) LN_GROUP_AIF(2, ID)
628
629 #define LN2_GROUP_GAI(ID) \
630 LN2_GROUP_AIF(ID), \
631 LN2_GROUP_PIN(ID##_BCLK), LN2_GROUP_PIN(ID##_LRCLK), \
632 LN2_GROUP_PIN(ID##_RXDAT), LN2_GROUP_PIN(ID##_TXDAT)
633
634 struct lochnagar_group {
635 const char * const name;
636
637 enum lochnagar_func_type type;
638
639 const unsigned int *pins;
640 unsigned int npins;
641
642 const void *priv;
643 };
644
645 static const struct lochnagar_group lochnagar1_groups[] = {
646 LN1_GROUP_PIN(GF_GPIO2), LN1_GROUP_PIN(GF_GPIO3),
647 LN1_GROUP_PIN(GF_GPIO7),
648 LN1_GROUP_PIN(LED1), LN1_GROUP_PIN(LED2),
649 LN1_GROUP_AIF(CDC_AIF1), LN1_GROUP_AIF(CDC_AIF2),
650 LN1_GROUP_AIF(CDC_AIF3),
651 LN1_GROUP_AIF(DSP_AIF1), LN1_GROUP_AIF(DSP_AIF2),
652 LN1_GROUP_AIF(PSIA1), LN1_GROUP_AIF(PSIA2),
653 LN1_GROUP_AIF(GF_AIF1), LN1_GROUP_AIF(GF_AIF2),
654 LN1_GROUP_AIF(GF_AIF3), LN1_GROUP_AIF(GF_AIF4),
655 LN1_GROUP_AIF(SPDIF_AIF),
656 };
657
658 static const struct lochnagar_group lochnagar2_groups[] = {
659 LN2_GROUP_PIN(FPGA_GPIO1), LN2_GROUP_PIN(FPGA_GPIO2),
660 LN2_GROUP_PIN(FPGA_GPIO3), LN2_GROUP_PIN(FPGA_GPIO4),
661 LN2_GROUP_PIN(FPGA_GPIO5), LN2_GROUP_PIN(FPGA_GPIO6),
662 LN2_GROUP_PIN(CDC_GPIO1), LN2_GROUP_PIN(CDC_GPIO2),
663 LN2_GROUP_PIN(CDC_GPIO3), LN2_GROUP_PIN(CDC_GPIO4),
664 LN2_GROUP_PIN(CDC_GPIO5), LN2_GROUP_PIN(CDC_GPIO6),
665 LN2_GROUP_PIN(CDC_GPIO7), LN2_GROUP_PIN(CDC_GPIO8),
666 LN2_GROUP_PIN(DSP_GPIO1), LN2_GROUP_PIN(DSP_GPIO2),
667 LN2_GROUP_PIN(DSP_GPIO3), LN2_GROUP_PIN(DSP_GPIO4),
668 LN2_GROUP_PIN(DSP_GPIO5), LN2_GROUP_PIN(DSP_GPIO6),
669 LN2_GROUP_PIN(DSP_GPIO20),
670 LN2_GROUP_PIN(GF_GPIO1),
671 LN2_GROUP_PIN(GF_GPIO2), LN2_GROUP_PIN(GF_GPIO5),
672 LN2_GROUP_PIN(GF_GPIO3), LN2_GROUP_PIN(GF_GPIO7),
673 LN2_GROUP_PIN(DSP_UART1_RX), LN2_GROUP_PIN(DSP_UART1_TX),
674 LN2_GROUP_PIN(DSP_UART2_RX), LN2_GROUP_PIN(DSP_UART2_TX),
675 LN2_GROUP_PIN(GF_UART2_RX), LN2_GROUP_PIN(GF_UART2_TX),
676 LN2_GROUP_PIN(USB_UART_RX),
677 LN2_GROUP_PIN(CDC_PDMCLK1), LN2_GROUP_PIN(CDC_PDMDAT1),
678 LN2_GROUP_PIN(CDC_PDMCLK2), LN2_GROUP_PIN(CDC_PDMDAT2),
679 LN2_GROUP_PIN(CDC_DMICCLK1), LN2_GROUP_PIN(CDC_DMICDAT1),
680 LN2_GROUP_PIN(CDC_DMICCLK2), LN2_GROUP_PIN(CDC_DMICDAT2),
681 LN2_GROUP_PIN(CDC_DMICCLK3), LN2_GROUP_PIN(CDC_DMICDAT3),
682 LN2_GROUP_PIN(CDC_DMICCLK4), LN2_GROUP_PIN(CDC_DMICDAT4),
683 LN2_GROUP_PIN(DSP_DMICCLK1), LN2_GROUP_PIN(DSP_DMICDAT1),
684 LN2_GROUP_PIN(DSP_DMICCLK2), LN2_GROUP_PIN(DSP_DMICDAT2),
685 LN2_GROUP_PIN(I2C2_SCL), LN2_GROUP_PIN(I2C2_SDA),
686 LN2_GROUP_PIN(I2C3_SCL), LN2_GROUP_PIN(I2C3_SDA),
687 LN2_GROUP_PIN(I2C4_SCL), LN2_GROUP_PIN(I2C4_SDA),
688 LN2_GROUP_PIN(DSP_STANDBY),
689 LN2_GROUP_PIN(CDC_MCLK1), LN2_GROUP_PIN(CDC_MCLK2),
690 LN2_GROUP_PIN(DSP_CLKIN),
691 LN2_GROUP_PIN(PSIA1_MCLK), LN2_GROUP_PIN(PSIA2_MCLK),
692 LN2_GROUP_GAI(CDC_AIF1), LN2_GROUP_GAI(CDC_AIF2),
693 LN2_GROUP_GAI(CDC_AIF3),
694 LN2_GROUP_GAI(DSP_AIF1), LN2_GROUP_GAI(DSP_AIF2),
695 LN2_GROUP_GAI(PSIA1), LN2_GROUP_GAI(PSIA2),
696 LN2_GROUP_GAI(GF_AIF1), LN2_GROUP_GAI(GF_AIF2),
697 LN2_GROUP_GAI(GF_AIF3), LN2_GROUP_GAI(GF_AIF4),
698 LN2_GROUP_AIF(SPDIF_AIF),
699 LN2_GROUP_AIF(USB_AIF1), LN2_GROUP_AIF(USB_AIF2),
700 LN2_GROUP_AIF(ADAT_AIF),
701 LN2_GROUP_AIF(SOUNDCARD_AIF),
702 };
703
704 struct lochnagar_func_groups {
705 const char **groups;
706 unsigned int ngroups;
707 };
708
709 struct lochnagar_pin_priv {
710 struct lochnagar *lochnagar;
711 struct device *dev;
712
713 const struct lochnagar_func *funcs;
714 unsigned int nfuncs;
715
716 const struct pinctrl_pin_desc *pins;
717 unsigned int npins;
718
719 const struct lochnagar_group *groups;
720 unsigned int ngroups;
721
722 struct lochnagar_func_groups func_groups[LN_FTYPE_COUNT];
723
724 struct gpio_chip gpio_chip;
725 };
726
lochnagar_get_groups_count(struct pinctrl_dev * pctldev)727 static int lochnagar_get_groups_count(struct pinctrl_dev *pctldev)
728 {
729 struct lochnagar_pin_priv *priv = pinctrl_dev_get_drvdata(pctldev);
730
731 return priv->ngroups;
732 }
733
lochnagar_get_group_name(struct pinctrl_dev * pctldev,unsigned int group_idx)734 static const char *lochnagar_get_group_name(struct pinctrl_dev *pctldev,
735 unsigned int group_idx)
736 {
737 struct lochnagar_pin_priv *priv = pinctrl_dev_get_drvdata(pctldev);
738
739 return priv->groups[group_idx].name;
740 }
741
lochnagar_get_group_pins(struct pinctrl_dev * pctldev,unsigned int group_idx,const unsigned int ** pins,unsigned int * num_pins)742 static int lochnagar_get_group_pins(struct pinctrl_dev *pctldev,
743 unsigned int group_idx,
744 const unsigned int **pins,
745 unsigned int *num_pins)
746 {
747 struct lochnagar_pin_priv *priv = pinctrl_dev_get_drvdata(pctldev);
748
749 *pins = priv->groups[group_idx].pins;
750 *num_pins = priv->groups[group_idx].npins;
751
752 return 0;
753 }
754
755 static const struct pinctrl_ops lochnagar_pin_group_ops = {
756 .get_groups_count = lochnagar_get_groups_count,
757 .get_group_name = lochnagar_get_group_name,
758 .get_group_pins = lochnagar_get_group_pins,
759 .dt_node_to_map = pinconf_generic_dt_node_to_map_all,
760 .dt_free_map = pinctrl_utils_free_map,
761 };
762
lochnagar_get_funcs_count(struct pinctrl_dev * pctldev)763 static int lochnagar_get_funcs_count(struct pinctrl_dev *pctldev)
764 {
765 struct lochnagar_pin_priv *priv = pinctrl_dev_get_drvdata(pctldev);
766
767 return priv->nfuncs;
768 }
769
lochnagar_get_func_name(struct pinctrl_dev * pctldev,unsigned int func_idx)770 static const char *lochnagar_get_func_name(struct pinctrl_dev *pctldev,
771 unsigned int func_idx)
772 {
773 struct lochnagar_pin_priv *priv = pinctrl_dev_get_drvdata(pctldev);
774
775 return priv->funcs[func_idx].name;
776 }
777
lochnagar_get_func_groups(struct pinctrl_dev * pctldev,unsigned int func_idx,const char * const ** groups,unsigned int * const num_groups)778 static int lochnagar_get_func_groups(struct pinctrl_dev *pctldev,
779 unsigned int func_idx,
780 const char * const **groups,
781 unsigned int * const num_groups)
782 {
783 struct lochnagar_pin_priv *priv = pinctrl_dev_get_drvdata(pctldev);
784 int func_type;
785
786 func_type = priv->funcs[func_idx].type;
787
788 *groups = priv->func_groups[func_type].groups;
789 *num_groups = priv->func_groups[func_type].ngroups;
790
791 return 0;
792 }
793
lochnagar2_get_gpio_chan(struct lochnagar_pin_priv * priv,unsigned int op)794 static int lochnagar2_get_gpio_chan(struct lochnagar_pin_priv *priv,
795 unsigned int op)
796 {
797 struct regmap *regmap = priv->lochnagar->regmap;
798 unsigned int val;
799 int free = -1;
800 int i, ret;
801
802 for (i = 0; i < LN2_NUM_GPIO_CHANNELS; i++) {
803 ret = regmap_read(regmap, LOCHNAGAR2_GPIO_CHANNEL1 + i, &val);
804 if (ret)
805 return ret;
806
807 val &= LOCHNAGAR2_GPIO_CHANNEL_SRC_MASK;
808
809 if (val == op)
810 return i + 1;
811
812 if (free < 0 && !val)
813 free = i;
814 }
815
816 if (free >= 0) {
817 ret = regmap_update_bits(regmap,
818 LOCHNAGAR2_GPIO_CHANNEL1 + free,
819 LOCHNAGAR2_GPIO_CHANNEL_SRC_MASK, op);
820 if (ret)
821 return ret;
822
823 free++;
824
825 dev_dbg(priv->dev, "Set channel %d to 0x%x\n", free, op);
826
827 return free;
828 }
829
830 return -ENOSPC;
831 }
832
lochnagar_pin_set_mux(struct lochnagar_pin_priv * priv,const struct lochnagar_pin * pin,unsigned int op)833 static int lochnagar_pin_set_mux(struct lochnagar_pin_priv *priv,
834 const struct lochnagar_pin *pin,
835 unsigned int op)
836 {
837 int ret;
838
839 switch (priv->lochnagar->type) {
840 case LOCHNAGAR1:
841 break;
842 default:
843 ret = lochnagar2_get_gpio_chan(priv, op);
844 if (ret < 0) {
845 dev_err(priv->dev, "Failed to get channel for %s: %d\n",
846 pin->name, ret);
847 return ret;
848 }
849
850 op = ret;
851 break;
852 }
853
854 dev_dbg(priv->dev, "Set pin %s to 0x%x\n", pin->name, op);
855
856 ret = regmap_write(priv->lochnagar->regmap, pin->reg, op);
857 if (ret)
858 dev_err(priv->dev, "Failed to set %s mux: %d\n",
859 pin->name, ret);
860
861 return 0;
862 }
863
lochnagar_aif_set_mux(struct lochnagar_pin_priv * priv,const struct lochnagar_group * group,unsigned int op)864 static int lochnagar_aif_set_mux(struct lochnagar_pin_priv *priv,
865 const struct lochnagar_group *group,
866 unsigned int op)
867 {
868 struct regmap *regmap = priv->lochnagar->regmap;
869 const struct lochnagar_aif *aif = group->priv;
870 const struct lochnagar_pin *pin;
871 int i, ret;
872
873 ret = regmap_update_bits(regmap, aif->src_reg, aif->src_mask, op);
874 if (ret) {
875 dev_err(priv->dev, "Failed to set %s source: %d\n",
876 group->name, ret);
877 return ret;
878 }
879
880 ret = regmap_update_bits(regmap, aif->ctrl_reg,
881 aif->ena_mask, aif->ena_mask);
882 if (ret) {
883 dev_err(priv->dev, "Failed to set %s enable: %d\n",
884 group->name, ret);
885 return ret;
886 }
887
888 for (i = 0; i < group->npins; i++) {
889 pin = priv->pins[group->pins[i]].drv_data;
890
891 if (pin->type != LN_PTYPE_MUX)
892 continue;
893
894 dev_dbg(priv->dev, "Set pin %s to AIF\n", pin->name);
895
896 ret = regmap_update_bits(regmap, pin->reg,
897 LOCHNAGAR2_GPIO_SRC_MASK,
898 LN2_OP_AIF);
899 if (ret) {
900 dev_err(priv->dev, "Failed to set %s to AIF: %d\n",
901 pin->name, ret);
902 return ret;
903 }
904 }
905
906 return 0;
907 }
908
lochnagar_set_mux(struct pinctrl_dev * pctldev,unsigned int func_idx,unsigned int group_idx)909 static int lochnagar_set_mux(struct pinctrl_dev *pctldev,
910 unsigned int func_idx, unsigned int group_idx)
911 {
912 struct lochnagar_pin_priv *priv = pinctrl_dev_get_drvdata(pctldev);
913 const struct lochnagar_func *func = &priv->funcs[func_idx];
914 const struct lochnagar_group *group = &priv->groups[group_idx];
915 const struct lochnagar_pin *pin;
916
917 switch (func->type) {
918 case LN_FTYPE_AIF:
919 dev_dbg(priv->dev, "Set group %s to %s\n",
920 group->name, func->name);
921
922 return lochnagar_aif_set_mux(priv, group, func->op);
923 case LN_FTYPE_PIN:
924 pin = priv->pins[*group->pins].drv_data;
925
926 dev_dbg(priv->dev, "Set pin %s to %s\n", pin->name, func->name);
927
928 return lochnagar_pin_set_mux(priv, pin, func->op);
929 default:
930 return -EINVAL;
931 }
932 }
933
lochnagar_gpio_request(struct pinctrl_dev * pctldev,struct pinctrl_gpio_range * range,unsigned int offset)934 static int lochnagar_gpio_request(struct pinctrl_dev *pctldev,
935 struct pinctrl_gpio_range *range,
936 unsigned int offset)
937 {
938 struct lochnagar_pin_priv *priv = pinctrl_dev_get_drvdata(pctldev);
939 struct lochnagar *lochnagar = priv->lochnagar;
940 const struct lochnagar_pin *pin = priv->pins[offset].drv_data;
941 int ret;
942
943 dev_dbg(priv->dev, "Requesting GPIO %s\n", pin->name);
944
945 if (lochnagar->type == LOCHNAGAR1 || pin->type != LN_PTYPE_MUX)
946 return 0;
947
948 ret = lochnagar2_get_gpio_chan(priv, LN2_OP_GPIO);
949 if (ret < 0) {
950 dev_err(priv->dev, "Failed to get low channel: %d\n", ret);
951 return ret;
952 }
953
954 ret = lochnagar2_get_gpio_chan(priv, LN2_OP_GPIO | 0x1);
955 if (ret < 0) {
956 dev_err(priv->dev, "Failed to get high channel: %d\n", ret);
957 return ret;
958 }
959
960 return 0;
961 }
962
lochnagar_gpio_set_direction(struct pinctrl_dev * pctldev,struct pinctrl_gpio_range * range,unsigned int offset,bool input)963 static int lochnagar_gpio_set_direction(struct pinctrl_dev *pctldev,
964 struct pinctrl_gpio_range *range,
965 unsigned int offset,
966 bool input)
967 {
968 /* The GPIOs only support output */
969 if (input)
970 return -EINVAL;
971
972 return 0;
973 }
974
975 static const struct pinmux_ops lochnagar_pin_mux_ops = {
976 .get_functions_count = lochnagar_get_funcs_count,
977 .get_function_name = lochnagar_get_func_name,
978 .get_function_groups = lochnagar_get_func_groups,
979 .set_mux = lochnagar_set_mux,
980
981 .gpio_request_enable = lochnagar_gpio_request,
982 .gpio_set_direction = lochnagar_gpio_set_direction,
983
984 .strict = true,
985 };
986
lochnagar_aif_set_master(struct lochnagar_pin_priv * priv,unsigned int group_idx,bool master)987 static int lochnagar_aif_set_master(struct lochnagar_pin_priv *priv,
988 unsigned int group_idx, bool master)
989 {
990 struct regmap *regmap = priv->lochnagar->regmap;
991 const struct lochnagar_group *group = &priv->groups[group_idx];
992 const struct lochnagar_aif *aif = group->priv;
993 unsigned int val = 0;
994 int ret;
995
996 if (group->type != LN_FTYPE_AIF)
997 return -EINVAL;
998
999 if (!master)
1000 val = aif->master_mask;
1001
1002 dev_dbg(priv->dev, "Set AIF %s to %s\n",
1003 group->name, master ? "master" : "slave");
1004
1005 ret = regmap_update_bits(regmap, aif->ctrl_reg, aif->master_mask, val);
1006 if (ret) {
1007 dev_err(priv->dev, "Failed to set %s mode: %d\n",
1008 group->name, ret);
1009 return ret;
1010 }
1011
1012 return 0;
1013 }
1014
lochnagar_conf_group_set(struct pinctrl_dev * pctldev,unsigned int group_idx,unsigned long * configs,unsigned int num_configs)1015 static int lochnagar_conf_group_set(struct pinctrl_dev *pctldev,
1016 unsigned int group_idx,
1017 unsigned long *configs,
1018 unsigned int num_configs)
1019 {
1020 struct lochnagar_pin_priv *priv = pinctrl_dev_get_drvdata(pctldev);
1021 int i, ret;
1022
1023 for (i = 0; i < num_configs; i++) {
1024 unsigned int param = pinconf_to_config_param(*configs);
1025
1026 switch (param) {
1027 case PIN_CONFIG_OUTPUT_ENABLE:
1028 ret = lochnagar_aif_set_master(priv, group_idx, true);
1029 if (ret)
1030 return ret;
1031 break;
1032 case PIN_CONFIG_INPUT_ENABLE:
1033 ret = lochnagar_aif_set_master(priv, group_idx, false);
1034 if (ret)
1035 return ret;
1036 break;
1037 default:
1038 return -ENOTSUPP;
1039 }
1040
1041 configs++;
1042 }
1043
1044 return 0;
1045 }
1046
1047 static const struct pinconf_ops lochnagar_pin_conf_ops = {
1048 .pin_config_group_set = lochnagar_conf_group_set,
1049 };
1050
1051 static const struct pinctrl_desc lochnagar_pin_desc = {
1052 .name = "lochnagar-pinctrl",
1053 .owner = THIS_MODULE,
1054
1055 .pctlops = &lochnagar_pin_group_ops,
1056 .pmxops = &lochnagar_pin_mux_ops,
1057 .confops = &lochnagar_pin_conf_ops,
1058 };
1059
lochnagar_gpio_set(struct gpio_chip * chip,unsigned int offset,int value)1060 static void lochnagar_gpio_set(struct gpio_chip *chip,
1061 unsigned int offset, int value)
1062 {
1063 struct lochnagar_pin_priv *priv = gpiochip_get_data(chip);
1064 struct lochnagar *lochnagar = priv->lochnagar;
1065 const struct lochnagar_pin *pin = priv->pins[offset].drv_data;
1066 int ret;
1067
1068 value = !!value;
1069
1070 dev_dbg(priv->dev, "Set GPIO %s to %s\n",
1071 pin->name, value ? "high" : "low");
1072
1073 switch (pin->type) {
1074 case LN_PTYPE_MUX:
1075 value |= LN2_OP_GPIO;
1076
1077 ret = lochnagar_pin_set_mux(priv, pin, value);
1078 break;
1079 case LN_PTYPE_GPIO:
1080 if (pin->invert)
1081 value = !value;
1082
1083 ret = regmap_update_bits(lochnagar->regmap, pin->reg,
1084 BIT(pin->shift), value << pin->shift);
1085 break;
1086 default:
1087 ret = -EINVAL;
1088 break;
1089 }
1090
1091 if (ret < 0)
1092 dev_err(chip->parent, "Failed to set %s value: %d\n",
1093 pin->name, ret);
1094 }
1095
lochnagar_gpio_direction_out(struct gpio_chip * chip,unsigned int offset,int value)1096 static int lochnagar_gpio_direction_out(struct gpio_chip *chip,
1097 unsigned int offset, int value)
1098 {
1099 lochnagar_gpio_set(chip, offset, value);
1100
1101 return pinctrl_gpio_direction_output(chip, offset);
1102 }
1103
lochnagar_fill_func_groups(struct lochnagar_pin_priv * priv)1104 static int lochnagar_fill_func_groups(struct lochnagar_pin_priv *priv)
1105 {
1106 struct lochnagar_func_groups *funcs;
1107 int i;
1108
1109 for (i = 0; i < priv->ngroups; i++)
1110 priv->func_groups[priv->groups[i].type].ngroups++;
1111
1112 for (i = 0; i < LN_FTYPE_COUNT; i++) {
1113 funcs = &priv->func_groups[i];
1114
1115 if (!funcs->ngroups)
1116 continue;
1117
1118 funcs->groups = devm_kcalloc(priv->dev, funcs->ngroups,
1119 sizeof(*funcs->groups),
1120 GFP_KERNEL);
1121 if (!funcs->groups)
1122 return -ENOMEM;
1123
1124 funcs->ngroups = 0;
1125 }
1126
1127 for (i = 0; i < priv->ngroups; i++) {
1128 funcs = &priv->func_groups[priv->groups[i].type];
1129
1130 funcs->groups[funcs->ngroups++] = priv->groups[i].name;
1131 }
1132
1133 return 0;
1134 }
1135
lochnagar_pin_probe(struct platform_device * pdev)1136 static int lochnagar_pin_probe(struct platform_device *pdev)
1137 {
1138 struct lochnagar *lochnagar = dev_get_drvdata(pdev->dev.parent);
1139 struct lochnagar_pin_priv *priv;
1140 struct pinctrl_desc *desc;
1141 struct pinctrl_dev *pctl;
1142 struct device *dev = &pdev->dev;
1143 int ret;
1144
1145 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
1146 if (!priv)
1147 return -ENOMEM;
1148
1149 priv->dev = dev;
1150 priv->lochnagar = lochnagar;
1151
1152 desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
1153 if (!desc)
1154 return -ENOMEM;
1155
1156 *desc = lochnagar_pin_desc;
1157
1158 priv->gpio_chip.label = dev_name(dev);
1159 priv->gpio_chip.request = gpiochip_generic_request;
1160 priv->gpio_chip.free = gpiochip_generic_free;
1161 priv->gpio_chip.direction_output = lochnagar_gpio_direction_out;
1162 priv->gpio_chip.set = lochnagar_gpio_set;
1163 priv->gpio_chip.can_sleep = true;
1164 priv->gpio_chip.parent = dev;
1165 priv->gpio_chip.base = -1;
1166
1167 switch (lochnagar->type) {
1168 case LOCHNAGAR1:
1169 priv->funcs = lochnagar1_funcs;
1170 priv->nfuncs = ARRAY_SIZE(lochnagar1_funcs);
1171 priv->pins = lochnagar1_pins;
1172 priv->npins = ARRAY_SIZE(lochnagar1_pins);
1173 priv->groups = lochnagar1_groups;
1174 priv->ngroups = ARRAY_SIZE(lochnagar1_groups);
1175
1176 priv->gpio_chip.ngpio = LOCHNAGAR1_PIN_NUM_GPIOS;
1177 break;
1178 case LOCHNAGAR2:
1179 priv->funcs = lochnagar2_funcs;
1180 priv->nfuncs = ARRAY_SIZE(lochnagar2_funcs);
1181 priv->pins = lochnagar2_pins;
1182 priv->npins = ARRAY_SIZE(lochnagar2_pins);
1183 priv->groups = lochnagar2_groups;
1184 priv->ngroups = ARRAY_SIZE(lochnagar2_groups);
1185
1186 priv->gpio_chip.ngpio = LOCHNAGAR2_PIN_NUM_GPIOS;
1187 break;
1188 default:
1189 dev_err(dev, "Unknown Lochnagar type: %d\n", lochnagar->type);
1190 return -EINVAL;
1191 }
1192
1193 ret = lochnagar_fill_func_groups(priv);
1194 if (ret < 0)
1195 return ret;
1196
1197 desc->pins = priv->pins;
1198 desc->npins = priv->npins;
1199
1200 pctl = devm_pinctrl_register(dev, desc, priv);
1201 if (IS_ERR(pctl)) {
1202 ret = PTR_ERR(pctl);
1203 dev_err(priv->dev, "Failed to register pinctrl: %d\n", ret);
1204 return ret;
1205 }
1206
1207 ret = devm_gpiochip_add_data(dev, &priv->gpio_chip, priv);
1208 if (ret < 0) {
1209 dev_err(&pdev->dev, "Failed to register gpiochip: %d\n", ret);
1210 return ret;
1211 }
1212
1213 return 0;
1214 }
1215
1216 static const struct of_device_id lochnagar_of_match[] = {
1217 { .compatible = "cirrus,lochnagar-pinctrl" },
1218 {}
1219 };
1220 MODULE_DEVICE_TABLE(of, lochnagar_of_match);
1221
1222 static struct platform_driver lochnagar_pin_driver = {
1223 .driver = {
1224 .name = "lochnagar-pinctrl",
1225 .of_match_table = of_match_ptr(lochnagar_of_match),
1226 },
1227
1228 .probe = lochnagar_pin_probe,
1229 };
1230 module_platform_driver(lochnagar_pin_driver);
1231
1232 MODULE_AUTHOR("Charles Keepax <ckeepax@opensource.cirrus.com>");
1233 MODULE_DESCRIPTION("Pinctrl driver for Cirrus Logic Lochnagar Board");
1234 MODULE_LICENSE("GPL v2");
1235