Merge tag 'affs-for-5.12-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
[linux-2.6-microblaze.git] / arch / arm / boot / dts / ste-ux500-samsung-skomer.dts
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Devicetree for the Samsung XCover 2 GT-S7710 also known as Skomer.
4  */
5
6 /dts-v1/;
7 #include "ste-db8500.dtsi"
8 #include "ste-ab8505.dtsi"
9 #include "ste-dbx5x0-pinctrl.dtsi"
10 #include <dt-bindings/gpio/gpio.h>
11 #include <dt-bindings/leds/common.h>
12 #include <dt-bindings/input/input.h>
13 #include <dt-bindings/interrupt-controller/irq.h>
14
15 / {
16         model = "Samsung XCover 2 (GT-S7710)";
17         compatible = "samsung,skomer", "st-ericsson,u8500";
18
19         chosen {
20                 stdout-path = &serial2;
21         };
22
23         /* TI TXS0206 level translator for 2.9 V */
24         sd_level_translator: regulator-gpio {
25                 compatible = "regulator-fixed";
26
27                 /* GPIO87 EN */
28                 gpios = <&gpio2 23 GPIO_ACTIVE_HIGH>;
29                 enable-active-high;
30
31                 regulator-name = "sd-level-translator";
32                 regulator-min-microvolt = <2900000>;
33                 regulator-max-microvolt = <2900000>;
34                 regulator-type = "voltage";
35
36                 startup-delay-us = <200>;
37
38                 pinctrl-names = "default";
39                 pinctrl-0 = <&sd_level_translator_default>;
40         };
41
42         /* External LDO MIC5366-3.3YMT for eMMC */
43         ldo_3v3_reg: regulator-gpio-ldo-3v3 {
44                 compatible = "regulator-fixed";
45                 regulator-name = "en-3v3-fixed-supply";
46                 regulator-min-microvolt = <3300000>;
47                 regulator-max-microvolt = <3300000>;
48                 gpio = <&gpio6 31 GPIO_ACTIVE_HIGH>;
49                 startup-delay-us = <5000>;
50                 enable-active-high;
51                 pinctrl-names = "default";
52                 pinctrl-0 = <&emmc_ldo_en_default_mode>;
53         };
54
55         wlan_en: regulator-gpio-wlan-en {
56                 compatible = "regulator-fixed";
57                 regulator-name = "wl-reg-on";
58                 regulator-min-microvolt = <3000000>;
59                 regulator-max-microvolt = <3000000>;
60                 startup-delay-us = <200000>;
61                 /* GPIO215 WLAN_EN */
62                 gpio = <&gpio6 23 GPIO_ACTIVE_HIGH>;
63                 enable-active-high;
64                 pinctrl-names = "default";
65                 pinctrl-0 = <&wlan_en_default_mode>;
66         };
67
68         vibrator {
69                 compatible = "gpio-vibrator";
70                 enable-gpios = <&gpio6 3 GPIO_ACTIVE_HIGH>;
71                 pinctrl-names = "default";
72                 pinctrl-0 = <&vibrator_default>;
73         };
74
75         gpio-keys {
76                 compatible = "gpio-keys";
77                 pinctrl-names = "default";
78                 pinctrl-0 = <&gpio_keys_default_mode>;
79
80                 button-home {
81                         linux,code = <KEY_HOME>;
82                         label = "HOME";
83                         /* GPIO91 */
84                         gpios = <&gpio2 27 GPIO_ACTIVE_LOW>;
85                 };
86                 button-volup {
87                         linux,code = <KEY_VOLUMEUP>;
88                         label = "VOL+";
89                         /* GPIO67 */
90                         gpios = <&gpio2 3 GPIO_ACTIVE_LOW>;
91                 };
92                 button-voldown {
93                         linux,code = <KEY_VOLUMEDOWN>;
94                         label = "VOL-";
95                         /* GPIO92 */
96                         gpios = <&gpio2 28 GPIO_ACTIVE_LOW>;
97                 };
98                 button-menu {
99                         linux,code = <KEY_MENU>;
100                         label = "MENU";
101                         /* GPIO204 */
102                         gpios = <&gpio6 12 GPIO_ACTIVE_LOW>;
103                 };
104                 button-back {
105                         linux,code = <KEY_BACK>;
106                         label = "BACK";
107                         /* GPIO205 */
108                         gpios = <&gpio6 13 GPIO_ACTIVE_LOW>;
109                 };
110         };
111
112         ktd253: backlight {
113                 compatible = "kinetic,ktd253";
114                 /* GPIO 69 */
115                 enable-gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>;
116                 /* Default to 13/32 brightness */
117                 default-brightness = <13>;
118                 pinctrl-names = "default";
119                 pinctrl-0 = <&gpio_backlight_default_mode>;
120         };
121
122         /* Richtek RT8515GQW Flash LED Driver IC */
123         flash {
124                 compatible = "richtek,rt8515";
125                 /* GPIO 140 */
126                 enf-gpios = <&gpio4 12 GPIO_ACTIVE_HIGH>;
127                 /* GPIO 141 */
128                 ent-gpios = <&gpio4 13 GPIO_ACTIVE_HIGH>;
129                 /*
130                  * RFS is 16 kOhm and RTS is 100 kOhm giving
131                  * the flash max current 343mA and torch max
132                  * current 55 mA.
133                  */
134                 richtek,rfs-ohms = <16000>;
135                 richtek,rts-ohms = <100000>;
136                 pinctrl-names = "default";
137                 pinctrl-0 = <&gpio_flash_default_mode>;
138
139                 led {
140                         function = LED_FUNCTION_FLASH;
141                         color = <LED_COLOR_ID_WHITE>;
142                         flash-max-timeout-us = <250000>;
143                         flash-max-microamp = <343750>;
144                         led-max-microamp = <55000>;
145                 };
146         };
147
148         i2c-gpio-0 {
149                 compatible = "i2c-gpio";
150                 sda-gpios = <&gpio4 16 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
151                 scl-gpios = <&gpio4 15 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
152                 pinctrl-names = "default";
153                 pinctrl-0 = <&i2c_gpio_0_default>;
154                 #address-cells = <1>;
155                 #size-cells = <0>;
156                 /* TODO: this should be used by the NCP6914 Camera power management unit */
157         };
158
159         i2c-gpio-1 {
160                 compatible = "i2c-gpio";
161                 sda-gpios = <&gpio4 24 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
162                 scl-gpios = <&gpio4 23 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
163                 pinctrl-names = "default";
164                 pinctrl-0 = <&i2c_gpio_1_default>;
165                 #address-cells = <1>;
166                 #size-cells = <0>;
167                 magnetometer@c {
168                         compatible = "alps,hscdtd008a";
169                         reg = <0x0c>;
170                         avdd-supply = <&ab8500_ldo_aux1_reg>;
171                         dvdd-supply = <&ab8500_ldo_aux8_reg>;
172                 };
173         };
174
175         soc {
176                 // External Micro SD slot
177                 mmc@80126000 {
178                         arm,primecell-periphid = <0x10480180>;
179                         max-frequency = <100000000>;
180                         bus-width = <4>;
181                         cap-sd-highspeed;
182                         cap-mmc-highspeed;
183                         /* All direction control is used */
184                         st,sig-dir-cmd;
185                         st,sig-dir-dat0;
186                         st,sig-dir-dat2;
187                         st,sig-dir-dat31;
188                         st,sig-pin-fbclk;
189                         full-pwr-cycle;
190                         vmmc-supply = <&ab8500_ldo_aux3_reg>;
191                         vqmmc-supply = <&sd_level_translator>;
192                         pinctrl-names = "default", "sleep";
193                         pinctrl-0 = <&mc0_a_1_default>;
194                         pinctrl-1 = <&mc0_a_1_sleep>;
195                         status = "okay";
196                 };
197
198                 // WLAN SDIO channel
199                 mmc@80118000 {
200                         arm,primecell-periphid = <0x10480180>;
201                         max-frequency = <50000000>;
202                         bus-width = <4>;
203                         non-removable;
204                         cap-sd-highspeed;
205                         vmmc-supply = <&wlan_en>;
206                         pinctrl-names = "default", "sleep";
207                         pinctrl-0 = <&mc1_a_2_default>;
208                         pinctrl-1 = <&mc1_a_2_sleep>;
209                         status = "okay";
210                         #address-cells = <1>;
211                         #size-cells = <0>;
212
213                         wifi@1 {
214                                 compatible = "brcm,bcm4329-fmac";
215                                 reg = <1>;
216                                 /* GPIO216 WL_HOST_WAKE */
217                                 interrupt-parent = <&gpio6>;
218                                 interrupts = <24 IRQ_TYPE_EDGE_FALLING>;
219                                 interrupt-names = "host-wake";
220                                 pinctrl-names = "default";
221                                 pinctrl-0 = <&wlan_default_mode>;
222                         };
223                 };
224
225                 // eMMC
226                 mmc@80005000 {
227                         arm,primecell-periphid = <0x10480180>;
228                         max-frequency = <100000000>;
229                         bus-width = <8>;
230                         non-removable;
231                         cap-mmc-highspeed;
232                         mmc-ddr-1_8v;
233                         vmmc-supply = <&ldo_3v3_reg>;
234                         pinctrl-names = "default", "sleep";
235                         pinctrl-0 = <&mc2_a_1_default>;
236                         pinctrl-1 = <&mc2_a_1_sleep>;
237
238                         status = "okay";
239                 };
240
241                 /* GBF (Bluetooth) UART */
242                 uart@80120000 {
243                         pinctrl-names = "default", "sleep";
244                         pinctrl-0 = <&u0_a_1_default>;
245                         pinctrl-1 = <&u0_a_1_sleep>;
246                         status = "okay";
247
248                         /* FIXME: not quite working yet, probably needs regulators */
249                         bluetooth {
250                                 compatible = "brcm,bcm4330-bt";
251                                 shutdown-gpios = <&gpio6 30 GPIO_ACTIVE_HIGH>;
252                                 device-wakeup-gpios = <&gpio6 7 GPIO_ACTIVE_HIGH>;
253                                 host-wakeup-gpios = <&gpio3 1 GPIO_ACTIVE_HIGH>;
254                                 pinctrl-names = "default";
255                                 pinctrl-0 = <&bluetooth_default_mode>;
256                         };
257                 };
258
259                 /* GPF UART */
260                 uart@80121000 {
261                         status = "okay";
262                         pinctrl-names = "default", "sleep";
263                         pinctrl-0 = <&u1rxtx_a_1_default &u1ctsrts_a_1_default>;
264                         pinctrl-1 = <&u1rxtx_a_1_sleep &u1ctsrts_a_1_sleep>;
265                 };
266
267                 /* Debugging console UART connected to AB8505 USB */
268                 uart@80007000 {
269                         status = "okay";
270                         pinctrl-names = "default", "sleep";
271                         pinctrl-0 = <&u2rxtx_c_1_default>;
272                         pinctrl-1 = <&u2rxtx_c_1_sleep>;
273                 };
274
275                 prcmu@80157000 {
276                         ab8505 {
277                                 ab8500_usb {
278                                         pinctrl-names = "default", "sleep";
279                                         pinctrl-0 = <&usb_a_1_default>;
280                                         pinctrl-1 = <&usb_a_1_sleep>;
281                                 };
282
283                                 ab8505-regulators {
284                                         ab8500_ldo_aux1 {
285                                                 /* Used for VDD for sensors */
286                                                 regulator-name = "AUX1";
287                                                 regulator-min-microvolt = <3000000>;
288                                                 regulator-max-microvolt = <3300000>;
289                                         };
290
291                                         ab8500_ldo_aux2 {
292                                                 /* Supplies the Cypress TMA140 touchscreen only with 3.3V */
293                                                 regulator-name = "AUX2";
294                                                 regulator-min-microvolt = <3300000>;
295                                                 regulator-max-microvolt = <3300000>;
296                                         };
297
298                                         ab8500_ldo_aux3 {
299                                                 /* Used for voltage for external MMC/SD card */
300                                                 regulator-name = "AUX3";
301                                                 regulator-min-microvolt = <1100000>;
302                                                 regulator-max-microvolt = <3300000>;
303                                         };
304
305                                         ab8500_ldo_aux4 {
306                                                 regulator-name = "AUX4";
307                                                 /* Hammer to 3.0V for the display */
308                                                 regulator-min-microvolt = <3000000>;
309                                                 regulator-max-microvolt = <3000000>;
310                                         };
311
312                                         ab8500_ldo_aux5 {
313                                                 regulator-name = "AUX5";
314                                                 regulator-min-microvolt = <1050000>;
315                                                 regulator-max-microvolt = <2790000>;
316                                                 regulator-always-on;
317                                         };
318
319                                         ab8500_ldo_aux6 {
320                                                 regulator-name = "AUX6";
321                                                 /* Hammer to 1.8V for the display */
322                                                 regulator-min-microvolt = <1800000>;
323                                                 regulator-max-microvolt = <1800000>;
324                                         };
325
326                                         ab8500_ldo_aux8 {
327                                                 /* Mostly VIO for sensors */
328                                                 regulator-name = "AUX8";
329                                         };
330                                 };
331                         };
332                 };
333
334                 /* I2C0 */
335                 i2c@80004000 {
336                         status = "okay";
337
338                         pinctrl-names = "default", "sleep";
339                         pinctrl-0 = <&i2c0_a_1_default>;
340                         pinctrl-1 = <&i2c0_a_1_sleep>;
341
342                         proximity@44 {
343                                 compatible = "sharp,gp2ap002s00f";
344                                 clock-frequency = <400000>;
345                                 reg = <0x44>;
346
347                                 interrupt-parent = <&gpio4>;
348                                 interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
349                                 vdd-supply = <&ab8500_ldo_aux1_reg>;
350                                 vio-supply = <&ab8500_ldo_aux8_reg>;
351                                 pinctrl-names = "default";
352                                 pinctrl-0 = <&gp2ap002_skomer_default>;
353                                 sharp,proximity-far-hysteresis = /bits/ 8 <0x2f>;
354                                 sharp,proximity-close-hysteresis = /bits/ 8 <0x0f>;
355                         };
356                 };
357
358
359                 /* I2C2 */
360                 i2c@80128000 {
361                         status = "okay";
362
363                         pinctrl-names = "default", "sleep";
364                         pinctrl-0 = <&i2c2_b_2_default>;
365                         pinctrl-1 = <&i2c2_b_2_sleep>;
366
367                         accel@18 {
368                                 compatible = "bosch,bma254";
369                                 clock-frequency = <400000>;
370                                 reg = <0x18>;
371
372                                 /* GPIO224 used as "smart alert" interrupt */
373                                 interrupt-parent = <&gpio7>;
374                                 interrupts = <0 IRQ_TYPE_EDGE_RISING>;
375
376                                 mount-matrix = "0", "-1", "0",
377                                               "1", "0", "0",
378                                                "0", "0", "1";
379                                 vdd-supply = <&ab8500_ldo_aux1_reg>;
380                                 vddio-supply = <&ab8500_ldo_aux8_reg>;
381                                 pinctrl-names = "default";
382                                 pinctrl-0 = <&bma254_skomer_default>;
383                         };
384                 };
385
386                 /* I2C3 */
387                 i2c@80110000 {
388                         status = "okay";
389
390                         pinctrl-names = "default", "sleep";
391                         pinctrl-0 = <&i2c3_c_2_default>;
392                         pinctrl-1 = <&i2c3_c_2_sleep>;
393
394                         /* Cypress CY8CTMA140 touchscreen */
395                         touchscreen@20 {
396                                 compatible = "cypress,cy8ctma140";
397                                 clock-frequency = <400000>;
398                                 reg = <0x20>;
399
400                                 touchscreen-size-x = <480>;
401                                 touchscreen-size-y = <800>;
402                                 touchscreen-max-pressure = <255>;
403
404                                 /* GPIO218 for IRQ */
405                                 interrupt-parent = <&gpio6>;
406                                 interrupts = <26 IRQ_TYPE_EDGE_FALLING>;
407
408                                 /* VDD is "digital supply" nominally 1.71-3.6V */
409                                 vdd-supply = <&ab8500_ldo_aux2_reg>;
410                                 /* VCPIN is "analog supply", 2.7-3.6 V */
411                                 vcpin-supply = <&ab8500_ldo_aux2_reg>;
412
413                                 pinctrl-names = "default";
414                                 pinctrl-0 = <&tma140_skomer_default>;
415                         };
416                 };
417
418                 mcde@a0350000 {
419                         status = "okay";
420                         pinctrl-names = "default";
421                         pinctrl-0 = <&dsi_default_mode>;
422
423                         dsi@a0351000 {
424                                 panel {
425                                         /* NT35510-based Hydis HVA40WV1 */
426                                         compatible = "hydis,hva40wv1", "novatek,nt35510";
427                                         reg = <0>;
428                                         /* v_lcd_3v0 2.3-4.8V */
429                                         vdd-supply = <&ab8500_ldo_aux4_reg>;
430                                         /* v_lcd_1v8 1.65-3.3V */
431                                         vddi-supply = <&ab8500_ldo_aux6_reg>;
432                                         /* GPIO 139 */
433                                         reset-gpios = <&gpio4 11 GPIO_ACTIVE_LOW>;
434                                         pinctrl-names = "default";
435                                         pinctrl-0 = <&display_default_mode>;
436                                         backlight = <&ktd253>;
437                                 };
438                         };
439                 };
440         };
441 };
442
443 &pinctrl {
444         /*
445          * This extends the MC0 default config to include DAT32DIR
446          * which is used by this machine. If we don't do this the
447          * SD card does not work.
448          */
449         sdi0 {
450                 mc0_a_1_default {
451                         default_mux {
452                                 function = "mc0";
453                                 /* This machine uses the DAT31 pin */
454                                 groups = "mc0_a_1", "mc0dat31dir_a_1";
455                         };
456                         default_cfg5 {
457                                 pins = "GPIO21_AB3"; /* DAT31DIR */
458                                 ste,config = <&out_hi>;
459                         };
460                 };
461         };
462
463         /* The unused FBCLK needs to be pulled down on this machine */
464         sdi2 {
465                 mc2_a_1_default {
466                         default_cfg2 {
467                                 pins = "GPIO130_C8"; /* FBCLK */
468                                 ste,config = <&in_pd>;
469                         };
470                 };
471         };
472
473         mcde {
474                 dsi_default_mode: dsi_default {
475                         default_mux1 {
476                                 /* Mux in VSI0 used for DSI TE */
477                                 function = "lcd";
478                                 groups = "lcdvsi0_a_1"; /* VSI0 for LCD */
479                         };
480                         default_cfg1 {
481                                 pins = "GPIO68_E1"; /* VSI0 */
482                                 ste,config = <&in_nopull>;
483                         };
484                 };
485         };
486
487         /* Two GPIO lines used by the display */
488         display {
489                 display_default_mode: display_default {
490                         skomer_cfg1 {
491                                 /*
492                                  * OLED DETECT or check_pba, this appears to be high
493                                  * on "PBA" which I guess is "prototype board A".
494                                  */
495                                 pins = "GPIO93_B7";
496                                 ste,config = <&gpio_in_nopull>;
497                         };
498                         skomer_cfg2 {
499                                 pins = "GPIO139_C9";
500                                 /*
501                                  * MIPI_DSI0_RESET_N resets the display, leave high
502                                  * (de-asserted) so we only assert reset explicitly
503                                  * from the display driver.
504                                  */
505                                 ste,config = <&gpio_out_hi>;
506                         };
507                 };
508         };
509         backlight {
510                 gpio_backlight_default_mode: backlight_default {
511                         skomer_cfg1 {
512                                 pins = "GPIO69_E2"; /* LCD_BL_CTRL */
513                                 ste,config = <&gpio_out_lo>;
514                         };
515                 };
516         };
517         flash {
518                 gpio_flash_default_mode: flash_default {
519                         skomer_cfg1 {
520                                 pins = "GPIO140_B11", "GPIO141_C12";
521                                 ste,config = <&gpio_out_lo>;
522                         };
523                 };
524         };
525         /* GPIO that enables the 2.9V SD card level translator */
526         sd-level-translator {
527                 sd_level_translator_default: sd_level_translator_default {
528                         /* level shifter on GPIO87 */
529                         skomer_cfg1 {
530                                 pins = "GPIO87_B3";
531                                 ste,config = <&gpio_out_hi>;
532                         };
533                 };
534         };
535         /* GPIO that enables the LDO regulator for the eMMC */
536         emmc-ldo {
537                 emmc_ldo_en_default_mode: emmc_ldo_default {
538                         /* LDO enable on GPIO223 */
539                         skomer_cfg1 {
540                                 pins = "GPIO223_AH9";
541                                 ste,config = <&gpio_out_hi>;
542                         };
543                 };
544         };
545         /* GPIO keys */
546         gpio-keys {
547                 gpio_keys_default_mode: gpio_keys_default {
548                         skomer_cfg1 {
549                                 pins = "GPIO67_G2", /* VOL UP */
550                                        "GPIO91_B6", /* HOME */
551                                        "GPIO92_D6", /* VOL DOWN */
552                                        "GPIO204_AF23", /* MENU */
553                                        "GPIO205_AG23"; /* BACK */
554                                         ste,config = <&gpio_in_pu>;
555                         };
556                 };
557         };
558         /* Interrupt line for BMA254 */
559         bma254 {
560                 bma254_skomer_default: bma254_skomer {
561                         skomer_cfg1 {
562                                 pins = "GPIO224_AG9";
563                                 ste,config = <&gpio_in_pd>;
564                         };
565                 };
566         };
567         /* Interrupt line for light/proximity sensor GP2AP002 */
568         gp2ap002 {
569                 gp2ap002_skomer_default: gp2ap002_skomer {
570                         skomer_cfg1 {
571                                 pins = "GPIO146_D13";
572                                 ste,config = <&gpio_in_nopull>;
573                         };
574                 };
575         };
576         /* GPIO-based I2C bus for NCP6914 */
577         i2c-gpio-0 {
578                 i2c_gpio_0_default: i2c_gpio_0 {
579                         skomer_cfg1 {
580                                 pins = "GPIO143_D12", "GPIO144_B13";
581                                 ste,config = <&gpio_in_nopull>;
582                         };
583                 };
584         };
585         /* GPIO-based I2C bus for ALPS HSCD compass */
586         i2c-gpio-1 {
587                 i2c_gpio_1_default: i2c_gpio_1 {
588                         skomer_cfg1 {
589                                 pins = "GPIO151_B17", "GPIO152_D16";
590                                 ste,config = <&gpio_in_nopull>;
591                         };
592                 };
593         };
594         wlan {
595                 wlan_default_mode: wlan_default {
596                         skomer_cfg1 {
597                                 pins = "GPIO216_AG12";
598                                 ste,config = <&gpio_in_pd>;
599                         };
600                 };
601                 wlan_en_default_mode: wlan_en_default {
602                         skomer_cfg2 {
603                                 pins = "GPIO215_AH13";
604                                 ste,config = <&gpio_out_lo>;
605                         };
606                 };
607         };
608         bluetooth {
609                 bluetooth_default_mode: bluetooth_default {
610                         skomer_cfg1 {
611                                 pins = "GPIO199_AH23", "GPIO222_AJ9";
612                                 ste,config = <&gpio_out_lo>;
613                         };
614                         skomer_cfg2 {
615                                 pins = "GPIO97_D9";
616                                 ste,config = <&gpio_in_nopull>;
617                         };
618                 };
619         };
620         vibrator {
621                 vibrator_default: vibrator_default {
622                         skomer_cfg1 {
623                                 pins = "GPIO195_AG28";  /* MOT_EN */
624                                 ste,config = <&gpio_out_lo>;
625                         };
626                 };
627         };
628         /* Interrupt line for the Cypress TMA140 touchscreen */
629         touchscreen {
630                 tma140_skomer_default: tma140_skomer {
631                         skomer_cfg1 {
632                                 pins = "GPIO218_AH11";
633                                 ste,config = <&gpio_in_nopull>;
634                         };
635                 };
636         };
637 };
638
639 &ab8505_gpio {
640         /* Hog a few default settings */
641         pinctrl-names = "default";
642         pinctrl-0 = <&gpio_default>;
643
644         gpio {
645                 gpio_default: gpio_default {
646                         skomer_mux {
647                                 /* Change unused pins to GPIO mode */
648                                 function = "gpio";
649                                 groups = "gpio3_a_1",   /* default: SysClkReq4 */
650                                          "gpio14_a_1";  /* default: PWMOut1 */
651                         };
652                         skomer_cfg1 {
653                                 pins = "GPIO11_B17", "GPIO13_D17", "GPIO50_L4";
654                                 bias-disable;
655                         };
656                 };
657         };
658 };