x86/oprofile: Fix bogus GCC-8 warning in nmi_setup()
[cris-mirror.git] / arch / arm / boot / dts / tegra30-cardhu.dtsi
blob92a9740c533f217a10cd6fb4421d2fc6871d015d
1 // SPDX-License-Identifier: GPL-2.0
2 #include <dt-bindings/input/input.h>
3 #include "tegra30.dtsi"
5 /**
6  * This file contains common DT entry for all fab version of Cardhu.
7  * There is multiple fab version of Cardhu starting from A01 to A07.
8  * Cardhu fab version A01 and A03 are not supported. Cardhu fab version
9  * A02 will have different sets of GPIOs for fixed regulator compare to
10  * Cardhu fab version A04. The Cardhu fab version A05, A06, A07 are
11  * compatible with fab version A04. Based on Cardhu fab version, the
12  * related dts file need to be chosen like for Cardhu fab version A02,
13  * use tegra30-cardhu-a02.dts, Cardhu fab version A04 and later, use
14  * tegra30-cardhu-a04.dts.
15  * The identification of board is done in two ways, by looking the sticker
16  * on PCB and by reading board id eeprom.
17  * The sticker will have number like 600-81291-1000-002 C.3. In this 4th
18  * number is the fab version like here it is 002 and hence fab version A02.
19  * The (downstream internal) U-Boot of Cardhu display the board-id as
20  * follows:
21  * BoardID: 0C5B, SKU: 0A01, Fab: 02, Rev: 45.00
22  * In this Fab version is 02 i.e. A02.
23  * The BoardID I2C eeprom is interfaced through i2c5 (pwr_i2c address 0x56).
24  * The location 0x8 of this eeprom contains the Fab version. It is 1 byte
25  * wide.
26  */
28 / {
29         model = "NVIDIA Tegra30 Cardhu evaluation board";
30         compatible = "nvidia,cardhu", "nvidia,tegra30";
32         aliases {
33                 rtc0 = "/i2c@7000d000/tps65911@2d";
34                 rtc1 = "/rtc@7000e000";
35                 serial0 = &uarta;
36                 serial1 = &uartc;
37         };
39         chosen {
40                 stdout-path = "serial0:115200n8";
41         };
43         memory {
44                 reg = <0x80000000 0x40000000>;
45         };
47         pcie@3000 {
48                 status = "okay";
50                 /* AVDD_PEXA and VDD_PEXA inputs are grounded on Cardhu. */
51                 avdd-pexb-supply = <&ldo1_reg>;
52                 vdd-pexb-supply = <&ldo1_reg>;
53                 avdd-pex-pll-supply = <&ldo1_reg>;
54                 hvdd-pex-supply = <&pex_hvdd_3v3_reg>;
55                 vddio-pex-ctl-supply = <&sys_3v3_reg>;
56                 avdd-plle-supply = <&ldo2_reg>;
58                 pci@1,0 {
59                         nvidia,num-lanes = <4>;
60                 };
62                 pci@2,0 {
63                         nvidia,num-lanes = <1>;
64                 };
66                 pci@3,0 {
67                         status = "okay";
68                         nvidia,num-lanes = <1>;
69                 };
70         };
72         host1x@50000000 {
73                 dc@54200000 {
74                         rgb {
75                                 status = "okay";
77                                 nvidia,panel = <&panel>;
78                         };
79                 };
80         };
82         pinmux@70000868 {
83                 pinctrl-names = "default";
84                 pinctrl-0 = <&state_default>;
86                 state_default: pinmux {
87                         sdmmc1_clk_pz0 {
88                                 nvidia,pins = "sdmmc1_clk_pz0";
89                                 nvidia,function = "sdmmc1";
90                                 nvidia,pull = <TEGRA_PIN_PULL_NONE>;
91                                 nvidia,tristate = <TEGRA_PIN_DISABLE>;
92                         };
93                         sdmmc1_cmd_pz1 {
94                                 nvidia,pins =   "sdmmc1_cmd_pz1",
95                                                 "sdmmc1_dat0_py7",
96                                                 "sdmmc1_dat1_py6",
97                                                 "sdmmc1_dat2_py5",
98                                                 "sdmmc1_dat3_py4";
99                                 nvidia,function = "sdmmc1";
100                                 nvidia,pull = <TEGRA_PIN_PULL_UP>;
101                                 nvidia,tristate = <TEGRA_PIN_DISABLE>;
102                         };
103                         sdmmc3_clk_pa6 {
104                                 nvidia,pins = "sdmmc3_clk_pa6";
105                                 nvidia,function = "sdmmc3";
106                                 nvidia,pull = <TEGRA_PIN_PULL_NONE>;
107                                 nvidia,tristate = <TEGRA_PIN_DISABLE>;
108                         };
109                         sdmmc3_cmd_pa7 {
110                                 nvidia,pins =   "sdmmc3_cmd_pa7",
111                                                 "sdmmc3_dat0_pb7",
112                                                 "sdmmc3_dat1_pb6",
113                                                 "sdmmc3_dat2_pb5",
114                                                 "sdmmc3_dat3_pb4";
115                                 nvidia,function = "sdmmc3";
116                                 nvidia,pull = <TEGRA_PIN_PULL_UP>;
117                                 nvidia,tristate = <TEGRA_PIN_DISABLE>;
118                         };
119                         sdmmc4_clk_pcc4 {
120                                 nvidia,pins =   "sdmmc4_clk_pcc4",
121                                                 "sdmmc4_rst_n_pcc3";
122                                 nvidia,function = "sdmmc4";
123                                 nvidia,pull = <TEGRA_PIN_PULL_NONE>;
124                                 nvidia,tristate = <TEGRA_PIN_DISABLE>;
125                         };
126                         sdmmc4_dat0_paa0 {
127                                 nvidia,pins =   "sdmmc4_dat0_paa0",
128                                                 "sdmmc4_dat1_paa1",
129                                                 "sdmmc4_dat2_paa2",
130                                                 "sdmmc4_dat3_paa3",
131                                                 "sdmmc4_dat4_paa4",
132                                                 "sdmmc4_dat5_paa5",
133                                                 "sdmmc4_dat6_paa6",
134                                                 "sdmmc4_dat7_paa7";
135                                 nvidia,function = "sdmmc4";
136                                 nvidia,pull = <TEGRA_PIN_PULL_UP>;
137                                 nvidia,tristate = <TEGRA_PIN_DISABLE>;
138                         };
139                         dap2_fs_pa2 {
140                                 nvidia,pins =   "dap2_fs_pa2",
141                                                 "dap2_sclk_pa3",
142                                                 "dap2_din_pa4",
143                                                 "dap2_dout_pa5";
144                                 nvidia,function = "i2s1";
145                                 nvidia,pull = <TEGRA_PIN_PULL_NONE>;
146                                 nvidia,tristate = <TEGRA_PIN_DISABLE>;
147                         };
148                         sdio3 {
149                                 nvidia,pins = "drive_sdio3";
150                                 nvidia,high-speed-mode = <TEGRA_PIN_DISABLE>;
151                                 nvidia,schmitt = <TEGRA_PIN_DISABLE>;
152                                 nvidia,pull-down-strength = <46>;
153                                 nvidia,pull-up-strength = <42>;
154                                 nvidia,slew-rate-rising = <TEGRA_PIN_SLEW_RATE_FAST>;
155                                 nvidia,slew-rate-falling = <TEGRA_PIN_SLEW_RATE_FAST>;
156                         };
157                         uart3_txd_pw6 {
158                                 nvidia,pins =   "uart3_txd_pw6",
159                                                 "uart3_cts_n_pa1",
160                                                 "uart3_rts_n_pc0",
161                                                 "uart3_rxd_pw7";
162                                 nvidia,function = "uartc";
163                                 nvidia,pull = <TEGRA_PIN_PULL_NONE>;
164                                 nvidia,tristate = <TEGRA_PIN_DISABLE>;
165                         };
166                 };
167         };
169         serial@70006000 {
170                 status = "okay";
171         };
173         serial@70006200 {
174                 compatible = "nvidia,tegra30-hsuart";
175                 status = "okay";
176         };
178         pwm@7000a000 {
179                 status = "okay";
180         };
182         panelddc: i2c@7000c000 {
183                 status = "okay";
184                 clock-frequency = <100000>;
185         };
187         i2c@7000c400 {
188                 status = "okay";
189                 clock-frequency = <100000>;
190         };
192         i2c@7000c500 {
193                 status = "okay";
194                 clock-frequency = <100000>;
196                 /* ALS and Proximity sensor */
197                 isl29028@44 {
198                         compatible = "isil,isl29028";
199                         reg = <0x44>;
200                         interrupt-parent = <&gpio>;
201                         interrupts = <TEGRA_GPIO(L, 0) IRQ_TYPE_LEVEL_HIGH>;
202                 };
204                 i2cmux@70 {
205                         compatible = "nxp,pca9546";
206                         #address-cells = <1>;
207                         #size-cells = <0>;
208                         reg = <0x70>;
209                 };
210         };
212         i2c@7000c700 {
213                 status = "okay";
214                 clock-frequency = <100000>;
215         };
217         i2c@7000d000 {
218                 status = "okay";
219                 clock-frequency = <100000>;
221                 wm8903: wm8903@1a {
222                         compatible = "wlf,wm8903";
223                         reg = <0x1a>;
224                         interrupt-parent = <&gpio>;
225                         interrupts = <TEGRA_GPIO(W, 3) IRQ_TYPE_LEVEL_HIGH>;
227                         gpio-controller;
228                         #gpio-cells = <2>;
230                         micdet-cfg = <0>;
231                         micdet-delay = <100>;
232                         gpio-cfg = <0xffffffff 0xffffffff 0 0xffffffff 0xffffffff>;
233                 };
235                 pmic: tps65911@2d {
236                         compatible = "ti,tps65911";
237                         reg = <0x2d>;
239                         interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
240                         #interrupt-cells = <2>;
241                         interrupt-controller;
243                         ti,system-power-controller;
245                         #gpio-cells = <2>;
246                         gpio-controller;
248                         vcc1-supply = <&vdd_ac_bat_reg>;
249                         vcc2-supply = <&vdd_ac_bat_reg>;
250                         vcc3-supply = <&vio_reg>;
251                         vcc4-supply = <&vdd_5v0_reg>;
252                         vcc5-supply = <&vdd_ac_bat_reg>;
253                         vcc6-supply = <&vdd2_reg>;
254                         vcc7-supply = <&vdd_ac_bat_reg>;
255                         vccio-supply = <&vdd_ac_bat_reg>;
257                         regulators {
258                                 vdd1_reg: vdd1 {
259                                         regulator-name = "vddio_ddr_1v2";
260                                         regulator-min-microvolt = <1200000>;
261                                         regulator-max-microvolt = <1200000>;
262                                         regulator-always-on;
263                                 };
265                                 vdd2_reg: vdd2 {
266                                         regulator-name = "vdd_1v5_gen";
267                                         regulator-min-microvolt = <1500000>;
268                                         regulator-max-microvolt = <1500000>;
269                                         regulator-always-on;
270                                 };
272                                 vddctrl_reg: vddctrl {
273                                         regulator-name = "vdd_cpu,vdd_sys";
274                                         regulator-min-microvolt = <1000000>;
275                                         regulator-max-microvolt = <1000000>;
276                                         regulator-always-on;
277                                 };
279                                 vio_reg: vio {
280                                         regulator-name = "vdd_1v8_gen";
281                                         regulator-min-microvolt = <1800000>;
282                                         regulator-max-microvolt = <1800000>;
283                                         regulator-always-on;
284                                 };
286                                 ldo1_reg: ldo1 {
287                                         regulator-name = "vdd_pexa,vdd_pexb";
288                                         regulator-min-microvolt = <1050000>;
289                                         regulator-max-microvolt = <1050000>;
290                                 };
292                                 ldo2_reg: ldo2 {
293                                         regulator-name = "vdd_sata,avdd_plle";
294                                         regulator-min-microvolt = <1050000>;
295                                         regulator-max-microvolt = <1050000>;
296                                 };
298                                 /* LDO3 is not connected to anything */
300                                 ldo4_reg: ldo4 {
301                                         regulator-name = "vdd_rtc";
302                                         regulator-min-microvolt = <1200000>;
303                                         regulator-max-microvolt = <1200000>;
304                                         regulator-always-on;
305                                 };
307                                 ldo5_reg: ldo5 {
308                                         regulator-name = "vddio_sdmmc,avdd_vdac";
309                                         regulator-min-microvolt = <3300000>;
310                                         regulator-max-microvolt = <3300000>;
311                                         regulator-always-on;
312                                 };
314                                 ldo6_reg: ldo6 {
315                                         regulator-name = "avdd_dsi_csi,pwrdet_mipi";
316                                         regulator-min-microvolt = <1200000>;
317                                         regulator-max-microvolt = <1200000>;
318                                 };
320                                 ldo7_reg: ldo7 {
321                                         regulator-name = "vdd_pllm,x,u,a_p_c_s";
322                                         regulator-min-microvolt = <1200000>;
323                                         regulator-max-microvolt = <1200000>;
324                                         regulator-always-on;
325                                 };
327                                 ldo8_reg: ldo8 {
328                                         regulator-name = "vdd_ddr_hs";
329                                         regulator-min-microvolt = <1000000>;
330                                         regulator-max-microvolt = <1000000>;
331                                         regulator-always-on;
332                                 };
333                         };
334                 };
336                 temperature-sensor@4c {
337                         compatible = "onnn,nct1008";
338                         reg = <0x4c>;
339                         vcc-supply = <&sys_3v3_reg>;
340                         interrupt-parent = <&gpio>;
341                         interrupts = <TEGRA_GPIO(CC, 2) IRQ_TYPE_LEVEL_LOW>;
342                 };
344                 tps62361@60 {
345                         compatible = "ti,tps62361";
346                         reg = <0x60>;
348                         regulator-name = "tps62361-vout";
349                         regulator-min-microvolt = <500000>;
350                         regulator-max-microvolt = <1500000>;
351                         regulator-boot-on;
352                         regulator-always-on;
353                         ti,vsel0-state-high;
354                         ti,vsel1-state-high;
355                 };
356         };
358         spi@7000da00 {
359                 status = "okay";
360                 spi-max-frequency = <25000000>;
361                 spi-flash@1 {
362                         compatible = "winbond,w25q32";
363                         reg = <1>;
364                         spi-max-frequency = <20000000>;
365                 };
366         };
368         pmc@7000e400 {
369                 status = "okay";
370                 nvidia,invert-interrupt;
371                 nvidia,suspend-mode = <1>;
372                 nvidia,cpu-pwr-good-time = <2000>;
373                 nvidia,cpu-pwr-off-time = <200>;
374                 nvidia,core-pwr-good-time = <3845 3845>;
375                 nvidia,core-pwr-off-time = <0>;
376                 nvidia,core-power-req-active-high;
377                 nvidia,sys-clock-req-active-high;
378         };
380         ahub@70080000 {
381                 i2s@70080400 {
382                         status = "okay";
383                 };
384         };
386         sdhci@78000000 {
387                 status = "okay";
388                 cd-gpios = <&gpio TEGRA_GPIO(I, 5) GPIO_ACTIVE_LOW>;
389                 wp-gpios = <&gpio TEGRA_GPIO(T, 3) GPIO_ACTIVE_HIGH>;
390                 power-gpios = <&gpio TEGRA_GPIO(D, 7) GPIO_ACTIVE_HIGH>;
391                 bus-width = <4>;
392         };
394         sdhci@78000600 {
395                 status = "okay";
396                 bus-width = <8>;
397                 non-removable;
398         };
400         usb@7d008000 {
401                 status = "okay";
402         };
404         usb-phy@7d008000 {
405                 vbus-supply = <&usb3_vbus_reg>;
406                 status = "okay";
407         };
409         backlight: backlight {
410                 compatible = "pwm-backlight";
412                 enable-gpios = <&gpio TEGRA_GPIO(H, 2) GPIO_ACTIVE_HIGH>;
413                 power-supply = <&vdd_bl_reg>;
414                 pwms = <&pwm 0 5000000>;
416                 brightness-levels = <0 4 8 16 32 64 128 255>;
417                 default-brightness-level = <6>;
418         };
420         clocks {
421                 compatible = "simple-bus";
422                 #address-cells = <1>;
423                 #size-cells = <0>;
425                 clk32k_in: clock@0 {
426                         compatible = "fixed-clock";
427                         reg = <0>;
428                         #clock-cells = <0>;
429                         clock-frequency = <32768>;
430                 };
431         };
433         panel: panel {
434                 compatible = "chunghwa,claa101wb01", "simple-panel";
435                 ddc-i2c-bus = <&panelddc>;
437                 power-supply = <&vdd_pnl1_reg>;
438                 enable-gpios = <&gpio TEGRA_GPIO(L, 2) GPIO_ACTIVE_HIGH>;
440                 backlight = <&backlight>;
441         };
443         regulators {
444                 compatible = "simple-bus";
445                 #address-cells = <1>;
446                 #size-cells = <0>;
448                 vdd_ac_bat_reg: regulator@0 {
449                         compatible = "regulator-fixed";
450                         reg = <0>;
451                         regulator-name = "vdd_ac_bat";
452                         regulator-min-microvolt = <5000000>;
453                         regulator-max-microvolt = <5000000>;
454                         regulator-always-on;
455                 };
457                 cam_1v8_reg: regulator@1 {
458                         compatible = "regulator-fixed";
459                         reg = <1>;
460                         regulator-name = "cam_1v8";
461                         regulator-min-microvolt = <1800000>;
462                         regulator-max-microvolt = <1800000>;
463                         enable-active-high;
464                         gpio = <&gpio TEGRA_GPIO(BB, 4) GPIO_ACTIVE_HIGH>;
465                         vin-supply = <&vio_reg>;
466                 };
468                 cp_5v_reg: regulator@2 {
469                         compatible = "regulator-fixed";
470                         reg = <2>;
471                         regulator-name = "cp_5v";
472                         regulator-min-microvolt = <5000000>;
473                         regulator-max-microvolt = <5000000>;
474                         regulator-boot-on;
475                         regulator-always-on;
476                         enable-active-high;
477                         gpio = <&pmic 0 GPIO_ACTIVE_HIGH>;
478                 };
480                 emmc_3v3_reg: regulator@3 {
481                         compatible = "regulator-fixed";
482                         reg = <3>;
483                         regulator-name = "emmc_3v3";
484                         regulator-min-microvolt = <3300000>;
485                         regulator-max-microvolt = <3300000>;
486                         regulator-always-on;
487                         regulator-boot-on;
488                         enable-active-high;
489                         gpio = <&gpio TEGRA_GPIO(D, 1) GPIO_ACTIVE_HIGH>;
490                         vin-supply = <&sys_3v3_reg>;
491                 };
493                 modem_3v3_reg: regulator@4 {
494                         compatible = "regulator-fixed";
495                         reg = <4>;
496                         regulator-name = "modem_3v3";
497                         regulator-min-microvolt = <3300000>;
498                         regulator-max-microvolt = <3300000>;
499                         enable-active-high;
500                         gpio = <&gpio TEGRA_GPIO(D, 6) GPIO_ACTIVE_HIGH>;
501                 };
503                 pex_hvdd_3v3_reg: regulator@5 {
504                         compatible = "regulator-fixed";
505                         reg = <5>;
506                         regulator-name = "pex_hvdd_3v3";
507                         regulator-min-microvolt = <3300000>;
508                         regulator-max-microvolt = <3300000>;
509                         enable-active-high;
510                         gpio = <&gpio TEGRA_GPIO(L, 7) GPIO_ACTIVE_HIGH>;
511                         vin-supply = <&sys_3v3_reg>;
512                 };
514                 vdd_cam1_ldo_reg: regulator@6 {
515                         compatible = "regulator-fixed";
516                         reg = <6>;
517                         regulator-name = "vdd_cam1_ldo";
518                         regulator-min-microvolt = <2800000>;
519                         regulator-max-microvolt = <2800000>;
520                         enable-active-high;
521                         gpio = <&gpio TEGRA_GPIO(R, 6) GPIO_ACTIVE_HIGH>;
522                         vin-supply = <&sys_3v3_reg>;
523                 };
525                 vdd_cam2_ldo_reg: regulator@7 {
526                         compatible = "regulator-fixed";
527                         reg = <7>;
528                         regulator-name = "vdd_cam2_ldo";
529                         regulator-min-microvolt = <2800000>;
530                         regulator-max-microvolt = <2800000>;
531                         enable-active-high;
532                         gpio = <&gpio TEGRA_GPIO(R, 7) GPIO_ACTIVE_HIGH>;
533                         vin-supply = <&sys_3v3_reg>;
534                 };
536                 vdd_cam3_ldo_reg: regulator@8 {
537                         compatible = "regulator-fixed";
538                         reg = <8>;
539                         regulator-name = "vdd_cam3_ldo";
540                         regulator-min-microvolt = <3300000>;
541                         regulator-max-microvolt = <3300000>;
542                         enable-active-high;
543                         gpio = <&gpio TEGRA_GPIO(S, 0) GPIO_ACTIVE_HIGH>;
544                         vin-supply = <&sys_3v3_reg>;
545                 };
547                 vdd_com_reg: regulator@9 {
548                         compatible = "regulator-fixed";
549                         reg = <9>;
550                         regulator-name = "vdd_com";
551                         regulator-min-microvolt = <3300000>;
552                         regulator-max-microvolt = <3300000>;
553                         regulator-always-on;
554                         regulator-boot-on;
555                         enable-active-high;
556                         gpio = <&gpio TEGRA_GPIO(D, 0) GPIO_ACTIVE_HIGH>;
557                         vin-supply = <&sys_3v3_reg>;
558                 };
560                 vdd_fuse_3v3_reg: regulator@10 {
561                         compatible = "regulator-fixed";
562                         reg = <10>;
563                         regulator-name = "vdd_fuse_3v3";
564                         regulator-min-microvolt = <3300000>;
565                         regulator-max-microvolt = <3300000>;
566                         enable-active-high;
567                         gpio = <&gpio TEGRA_GPIO(L, 6) GPIO_ACTIVE_HIGH>;
568                         vin-supply = <&sys_3v3_reg>;
569                 };
571                 vdd_pnl1_reg: regulator@11 {
572                         compatible = "regulator-fixed";
573                         reg = <11>;
574                         regulator-name = "vdd_pnl1";
575                         regulator-min-microvolt = <3300000>;
576                         regulator-max-microvolt = <3300000>;
577                         regulator-always-on;
578                         regulator-boot-on;
579                         enable-active-high;
580                         gpio = <&gpio TEGRA_GPIO(L, 4) GPIO_ACTIVE_HIGH>;
581                         vin-supply = <&sys_3v3_reg>;
582                 };
584                 vdd_vid_reg: regulator@12 {
585                         compatible = "regulator-fixed";
586                         reg = <12>;
587                         regulator-name = "vddio_vid";
588                         regulator-min-microvolt = <5000000>;
589                         regulator-max-microvolt = <5000000>;
590                         enable-active-high;
591                         gpio = <&gpio TEGRA_GPIO(T, 0) GPIO_ACTIVE_HIGH>;
592                         gpio-open-drain;
593                         vin-supply = <&vdd_5v0_reg>;
594                 };
595         };
597         sound {
598                 compatible = "nvidia,tegra-audio-wm8903-cardhu",
599                              "nvidia,tegra-audio-wm8903";
600                 nvidia,model = "NVIDIA Tegra Cardhu";
602                 nvidia,audio-routing =
603                         "Headphone Jack", "HPOUTR",
604                         "Headphone Jack", "HPOUTL",
605                         "Int Spk", "ROP",
606                         "Int Spk", "RON",
607                         "Int Spk", "LOP",
608                         "Int Spk", "LON",
609                         "Mic Jack", "MICBIAS",
610                         "IN1L", "Mic Jack";
612                 nvidia,i2s-controller = <&tegra_i2s1>;
613                 nvidia,audio-codec = <&wm8903>;
615                 nvidia,spkr-en-gpios = <&wm8903 2 GPIO_ACTIVE_HIGH>;
616                 nvidia,hp-det-gpios = <&gpio TEGRA_GPIO(W, 2)
617                         GPIO_ACTIVE_HIGH>;
619                 clocks = <&tegra_car TEGRA30_CLK_PLL_A>,
620                          <&tegra_car TEGRA30_CLK_PLL_A_OUT0>,
621                          <&tegra_car TEGRA30_CLK_EXTERN1>;
622                 clock-names = "pll_a", "pll_a_out0", "mclk";
623         };
625         gpio-keys {
626                 compatible = "gpio-keys";
628                 power {
629                         label = "Power";
630                         interrupt-parent = <&pmic>;
631                         interrupts = <2 0>;
632                         linux,code = <KEY_POWER>;
633                         debounce-interval = <100>;
634                         wakeup-source;
635                 };
637                 volume-down {
638                         label = "Volume Down";
639                         gpios = <&gpio TEGRA_GPIO(R, 0) GPIO_ACTIVE_LOW>;
640                         linux,code = <KEY_VOLUMEDOWN>;
641                         debounce-interval = <10>;
642                 };
644                 volume-up {
645                         label = "Volume Up";
646                         gpios = <&gpio TEGRA_GPIO(R, 1) GPIO_ACTIVE_LOW>;
647                         linux,code = <KEY_VOLUMEUP>;
648                         debounce-interval = <10>;
649                 };
650         };