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