target/linux/brcm2708/patches-3.18/0064-Adding-Device-Tree-support-for-some-RPi-audio-cards.patch

   1 From 5f17e24bea60b696815d2c6cb578e1e23f61cd57 Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.org>
   3 Date: Wed, 12 Nov 2014 17:07:02 +0000
   4 Subject: [PATCH 064/114] Adding Device Tree support for some RPi audio cards
   5
   6 ---
   7  arch/arm/boot/dts/Makefile                      |  2 +
   8  arch/arm/boot/dts/bcm2708-rpi-b-plus.dts        | 81 +++++++++++++++++++++++++
   9  arch/arm/boot/dts/bcm2708-rpi-b.dts             | 19 +++++-
  10  arch/arm/boot/dts/bcm2708.dtsi                  | 18 ++++--
  11  arch/arm/boot/dts/hifiberry-dac-overlay.dts     | 34 +++++++++++
  12  arch/arm/boot/dts/hifiberry-dacplus-overlay.dts | 39 ++++++++++++
  13  arch/arm/boot/dts/hifiberry-digi-overlay.dts    | 39 ++++++++++++
  14  arch/arm/boot/dts/iqaudio-dac-overlay.dts       | 39 ++++++++++++
  15  arch/arm/boot/dts/iqaudio-dacplus-overlay.dts   | 39 ++++++++++++
  16  sound/soc/bcm/hifiberry_dac.c                   | 22 +++++++
  17  sound/soc/bcm/hifiberry_dacplus.c               | 22 +++++++
  18  sound/soc/bcm/hifiberry_digi.c                  | 22 +++++++
  19  sound/soc/bcm/iqaudio-dac.c                     | 16 +++++
  20  sound/soc/codecs/pcm5102a.c                     |  7 +++
  21  14 files changed, 393 insertions(+), 6 deletions(-)
  22  create mode 100644 arch/arm/boot/dts/bcm2708-rpi-b-plus.dts
  23  create mode 100644 arch/arm/boot/dts/hifiberry-dac-overlay.dts
  24  create mode 100644 arch/arm/boot/dts/hifiberry-dacplus-overlay.dts
  25  create mode 100644 arch/arm/boot/dts/hifiberry-digi-overlay.dts
  26  create mode 100644 arch/arm/boot/dts/iqaudio-dac-overlay.dts
  27  create mode 100644 arch/arm/boot/dts/iqaudio-dacplus-overlay.dts
  28
  29 diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
  30 index c727f71..adaebbb 100644
  31 --- a/arch/arm/boot/dts/Makefile
  32 +++ b/arch/arm/boot/dts/Makefile
  33 @@ -54,6 +54,7 @@ dtb-$(CONFIG_ARCH_AT91)       += at91-sama5d4ek.dtb
  34  dtb-$(CONFIG_ARCH_ATLAS6) += atlas6-evb.dtb
  35  dtb-$(CONFIG_ARCH_AXXIA) += axm5516-amarillo.dtb
  36  dtb-$(CONFIG_BCM2708_DT) += bcm2708-rpi-b.dtb
  37 +dtb-$(CONFIG_BCM2708_DT) += bcm2708-rpi-b-plus.dtb
  38  dtb-$(CONFIG_ARCH_BCM2835) += bcm2835-rpi-b.dtb
  39  dtb-$(CONFIG_ARCH_BCM_5301X) += bcm4708-netgear-r6250.dtb
  40  dtb-$(CONFIG_ARCH_BCM_63XX) += bcm963138dvt.dtb
  41 @@ -520,6 +521,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt6589-aquaris5.dtb
  42
  43  targets += dtbs dtbs_install
  44  targets += $(dtb-y)
  45 +
  46  endif
  47
  48  # *.dtb used to be generated in the directory above. Clean out the
  49 diff --git a/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts b/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts
  50 new file mode 100644
  51 index 0000000..983c23f
  52 --- /dev/null
  53 +++ b/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts
  54 @@ -0,0 +1,81 @@
  55 +/dts-v1/;
  56 +
  57 +/include/ "bcm2708.dtsi"
  58 +
  59 +/ {
  60 +       compatible = "brcm,bcm2708";
  61 +       model = "Raspberry Pi Model B+";
  62 +
  63 +       aliases {
  64 +               spi0 = &spi0;
  65 +               i2c0 = &i2c0;
  66 +               i2c1 = &i2c1;
  67 +               i2s  = &i2s;
  68 +               gpio = &gpio;
  69 +               sound = &sound;
  70 +       };
  71 +
  72 +       sound: sound {
  73 +       };
  74 +};
  75 +
  76 +&gpio {
  77 +       spi0_pins: spi0_pins {
  78 +               brcm,pins = <7 8 9 10 11>;
  79 +               brcm,function = <4>; /* alt0 */
  80 +       };
  81 +
  82 +       i2c0_pins: i2c0 {
  83 +               brcm,pins = <0 1>;
  84 +               brcm,function = <4>;
  85 +       };
  86 +
  87 +       i2c1_pins: i2c1 {
  88 +               brcm,pins = <2 3>;
  89 +               brcm,function = <4>;
  90 +       };
  91 +
  92 +       i2s_pins: i2s {
  93 +               brcm,pins = <18 19 20 21>;
  94 +               brcm,function = <4>; /* alt0 */
  95 +       };
  96 +};
  97 +
  98 +&spi0 {
  99 +       pinctrl-names = "default";
 100 +       pinctrl-0 = <&spi0_pins>;
 101 +
 102 +       spidev@0{
 103 +               compatible = "spidev";
 104 +               reg = <0>;      /* CE0 */
 105 +               #address-cells = <1>;
 106 +               #size-cells = <0>;
 107 +               spi-max-frequency = <500000>;
 108 +       };
 109 +
 110 +       spidev@1{
 111 +               compatible = "spidev";
 112 +               reg = <1>;      /* CE1 */
 113 +               #address-cells = <1>;
 114 +               #size-cells = <0>;
 115 +               spi-max-frequency = <500000>;
 116 +       };
 117 +};
 118 +
 119 +&i2c0 {
 120 +       pinctrl-names = "default";
 121 +       pinctrl-0 = <&i2c0_pins>;
 122 +       clock-frequency = <100000>;
 123 +};
 124 +
 125 +&i2c1 {
 126 +       pinctrl-names = "default";
 127 +       pinctrl-0 = <&i2c1_pins>;
 128 +       clock-frequency = <100000>;
 129 +};
 130 +
 131 +&i2s {
 132 +       #sound-dai-cells = <0>;
 133 +       pinctrl-names = "default";
 134 +       pinctrl-0 = <&i2s_pins>;
 135 +};
 136 diff --git a/arch/arm/boot/dts/bcm2708-rpi-b.dts b/arch/arm/boot/dts/bcm2708-rpi-b.dts
 137 index 5893122..d8c6d15 100644
 138 --- a/arch/arm/boot/dts/bcm2708-rpi-b.dts
 139 +++ b/arch/arm/boot/dts/bcm2708-rpi-b.dts
 140 @@ -4,12 +4,18 @@
 141
 142  / {
 143         compatible = "brcm,bcm2708";
 144 -       model = "Raspberry Pi";
 145 +       model = "Raspberry Pi Model B";
 146
 147         aliases {
 148                 spi0 = &spi0;
 149                 i2c0 = &i2c0;
 150                 i2c1 = &i2c1;
 151 +               i2s  = &i2s;
 152 +               gpio = &gpio;
 153 +               sound = &sound;
 154 +       };
 155 +
 156 +       sound: sound {
 157         };
 158  };
 159
 160 @@ -28,6 +34,11 @@
 161                 brcm,pins = <2 3>;
 162                 brcm,function = <4>;
 163         };
 164 +
 165 +       i2s_pins: i2s {
 166 +               brcm,pins = <28 29 30 31>;
 167 +               brcm,function = <4>; /* alt0 */
 168 +       };
 169  };
 170
 171  &spi0 {
 172 @@ -62,3 +73,9 @@
 173         pinctrl-0 = <&i2c1_pins>;
 174         clock-frequency = <100000>;
 175  };
 176 +
 177 +&i2s {
 178 +       #sound-dai-cells = <0>;
 179 +       pinctrl-names = "default";
 180 +       pinctrl-0 = <&i2s_pins>;
 181 +};
 182 diff --git a/arch/arm/boot/dts/bcm2708.dtsi b/arch/arm/boot/dts/bcm2708.dtsi
 183 index 2ca6d63..6b36128 100644
 184 --- a/arch/arm/boot/dts/bcm2708.dtsi
 185 +++ b/arch/arm/boot/dts/bcm2708.dtsi
 186 @@ -7,11 +7,8 @@
 187         interrupt-parent = <&intc>;
 188
 189         chosen {
 190 -               /*
 191 -                  bootargs must be 1024 characters long because the
 192 -                  VC bootloader can't expand it
 193 -               */
 194 -               bootargs = "console=ttyAMA0                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 ";
 195 +               /* No padding required - the boot loader can do that. */
 196 +               bootargs = "";
 197         };
 198
 199         soc {
 200 @@ -39,6 +36,17 @@
 201                         #interrupt-cells = <2>;
 202                 };
 203
 204 +               i2s: i2s@7e203000 {
 205 +                       compatible = "brcm,bcm2708-i2s";
 206 +                       reg = <0x7e203000 0x20>,
 207 +                             <0x7e101098 0x02>;
 208 +
 209 +                       //dmas = <&dma 2>,
 210 +                       //       <&dma 3>;
 211 +                       dma-names = "tx", "rx";
 212 +                       status = "disabled";
 213 +               };
 214 +
 215                 spi0: spi@7e204000 {
 216                         compatible = "brcm,bcm2708-spi";
 217                         reg = <0x7e204000 0x1000>;
 218 diff --git a/arch/arm/boot/dts/hifiberry-dac-overlay.dts b/arch/arm/boot/dts/hifiberry-dac-overlay.dts
 219 new file mode 100644
 220 index 0000000..5e7633a
 221 --- /dev/null
 222 +++ b/arch/arm/boot/dts/hifiberry-dac-overlay.dts
 223 @@ -0,0 +1,34 @@
 224 +// Definitions for HiFiBerry DAC
 225 +/dts-v1/;
 226 +/plugin/;
 227 +
 228 +/ {
 229 +       compatible = "brcm,bcm2708";
 230 +
 231 +       fragment@0 {
 232 +               target = <&sound>;
 233 +               __overlay__ {
 234 +                       compatible = "hifiberry,hifiberry-dac";
 235 +                       i2s-controller = <&i2s>;
 236 +                       status = "okay";
 237 +               };
 238 +       };
 239 +
 240 +       fragment@1 {
 241 +               target = <&i2s>;
 242 +               __overlay__ {
 243 +                       status = "okay";
 244 +               };
 245 +       };
 246 +
 247 +       fragment@2 {
 248 +               target-path = "/";
 249 +               __overlay__ {
 250 +                       pcm5102a-codec {
 251 +                               #sound-dai-cells = <0>;
 252 +                               compatible = "ti,pcm5102a";
 253 +                               status = "okay";
 254 +                       };
 255 +               };
 256 +       };
 257 +};
 258 diff --git a/arch/arm/boot/dts/hifiberry-dacplus-overlay.dts b/arch/arm/boot/dts/hifiberry-dacplus-overlay.dts
 259 new file mode 100644
 260 index 0000000..deb9c62
 261 --- /dev/null
 262 +++ b/arch/arm/boot/dts/hifiberry-dacplus-overlay.dts
 263 @@ -0,0 +1,39 @@
 264 +// Definitions for HiFiBerry DAC+
 265 +/dts-v1/;
 266 +/plugin/;
 267 +
 268 +/ {
 269 +       compatible = "brcm,bcm2708";
 270 +
 271 +       fragment@0 {
 272 +               target = <&sound>;
 273 +               __overlay__ {
 274 +                       compatible = "hifiberry,hifiberry-dacplus";
 275 +                       i2s-controller = <&i2s>;
 276 +                       status = "okay";
 277 +               };
 278 +       };
 279 +
 280 +       fragment@1 {
 281 +               target = <&i2s>;
 282 +               __overlay__ {
 283 +                       status = "okay";
 284 +               };
 285 +       };
 286 +
 287 +       fragment@2 {
 288 +               target = <&i2c1>;
 289 +               __overlay__ {
 290 +                       #address-cells = <1>;
 291 +                       #size-cells = <0>;
 292 +                       status = "okay";
 293 +
 294 +                       pcm5122@4d {
 295 +                               #sound-dai-cells = <0>;
 296 +                               compatible = "ti,pcm5122";
 297 +                               reg = <0x4d>;
 298 +                               status = "okay";
 299 +                       };
 300 +               };
 301 +       };
 302 +};
 303 diff --git a/arch/arm/boot/dts/hifiberry-digi-overlay.dts b/arch/arm/boot/dts/hifiberry-digi-overlay.dts
 304 new file mode 100644
 305 index 0000000..d0e0d8a
 306 --- /dev/null
 307 +++ b/arch/arm/boot/dts/hifiberry-digi-overlay.dts
 308 @@ -0,0 +1,39 @@
 309 +// Definitions for HiFiBerry Digi
 310 +/dts-v1/;
 311 +/plugin/;
 312 +
 313 +/ {
 314 +       compatible = "brcm,bcm2708";
 315 +
 316 +       fragment@0 {
 317 +               target = <&sound>;
 318 +               __overlay__ {
 319 +                       compatible = "hifiberry,hifiberry-digi";
 320 +                       i2s-controller = <&i2s>;
 321 +                       status = "okay";
 322 +               };
 323 +       };
 324 +
 325 +       fragment@1 {
 326 +               target = <&i2s>;
 327 +               __overlay__ {
 328 +                       status = "okay";
 329 +               };
 330 +       };
 331 +
 332 +       fragment@2 {
 333 +               target = <&i2c1>;
 334 +               __overlay__ {
 335 +                       #address-cells = <1>;
 336 +                       #size-cells = <0>;
 337 +                       status = "okay";
 338 +
 339 +                       wm8804@3b {
 340 +                               #sound-dai-cells = <0>;
 341 +                               compatible = "wlf,wm8804";
 342 +                               reg = <0x3b>;
 343 +                               status = "okay";
 344 +                       };
 345 +               };
 346 +       };
 347 +};
 348 diff --git a/arch/arm/boot/dts/iqaudio-dac-overlay.dts b/arch/arm/boot/dts/iqaudio-dac-overlay.dts
 349 new file mode 100644
 350 index 0000000..ea8173e
 351 --- /dev/null
 352 +++ b/arch/arm/boot/dts/iqaudio-dac-overlay.dts
 353 @@ -0,0 +1,39 @@
 354 +// Definitions for IQaudIO DAC
 355 +/dts-v1/;
 356 +/plugin/;
 357 +
 358 +/ {
 359 +       compatible = "brcm,bcm2708";
 360 +
 361 +       fragment@0 {
 362 +               target = <&sound>;
 363 +               __overlay__ {
 364 +                       compatible = "iqaudio,iqaudio-dac";
 365 +                       i2s-controller = <&i2s>;
 366 +                       status = "okay";
 367 +               };
 368 +       };
 369 +
 370 +       fragment@1 {
 371 +               target = <&i2s>;
 372 +               __overlay__ {
 373 +                       status = "okay";
 374 +               };
 375 +       };
 376 +
 377 +       fragment@2 {
 378 +               target = <&i2c1>;
 379 +               __overlay__ {
 380 +                       #address-cells = <1>;
 381 +                       #size-cells = <0>;
 382 +                       status = "okay";
 383 +
 384 +                       pcm5122@4c {
 385 +                               #sound-dai-cells = <0>;
 386 +                               compatible = "ti,pcm5122";
 387 +                               reg = <0x4c>;
 388 +                               status = "okay";
 389 +                       };
 390 +               };
 391 +       };
 392 +};
 393 diff --git a/arch/arm/boot/dts/iqaudio-dacplus-overlay.dts b/arch/arm/boot/dts/iqaudio-dacplus-overlay.dts
 394 new file mode 100644
 395 index 0000000..735d8ab
 396 --- /dev/null
 397 +++ b/arch/arm/boot/dts/iqaudio-dacplus-overlay.dts
 398 @@ -0,0 +1,39 @@
 399 +// Definitions for IQaudIO DAC+
 400 +/dts-v1/;
 401 +/plugin/;
 402 +
 403 +/ {
 404 +       compatible = "brcm,bcm2708";
 405 +
 406 +       fragment@0 {
 407 +               target = <&sound>;
 408 +               __overlay__ {
 409 +                       compatible = "iqaudio,iqaudio-dac";
 410 +                       i2s-controller = <&i2s>;
 411 +                       status = "okay";
 412 +               };
 413 +       };
 414 +
 415 +       fragment@1 {
 416 +               target = <&i2s>;
 417 +               __overlay__ {
 418 +                       status = "okay";
 419 +               };
 420 +       };
 421 +
 422 +       fragment@2 {
 423 +               target = <&i2c1>;
 424 +               __overlay__ {
 425 +                       #address-cells = <1>;
 426 +                       #size-cells = <0>;
 427 +                       status = "okay";
 428 +
 429 +                       pcm5122@4c {
 430 +                               #sound-dai-cells = <0>;
 431 +                               compatible = "ti,pcm5122";
 432 +                               reg = <0x4c>;
 433 +                               status = "okay";
 434 +                       };
 435 +               };
 436 +       };
 437 +};
 438 diff --git a/sound/soc/bcm/hifiberry_dac.c b/sound/soc/bcm/hifiberry_dac.c
 439 index 4b70b45..3ab0f47 100644
 440 --- a/sound/soc/bcm/hifiberry_dac.c
 441 +++ b/sound/soc/bcm/hifiberry_dac.c
 442 @@ -72,6 +72,21 @@ static int snd_rpi_hifiberry_dac_probe(struct platform_device *pdev)
 443         int ret = 0;
 444
 445         snd_rpi_hifiberry_dac.dev = &pdev->dev;
 446 +
 447 +       if (pdev->dev.of_node) {
 448 +           struct device_node *i2s_node;
 449 +           struct snd_soc_dai_link *dai = &snd_rpi_hifiberry_dac_dai[0];
 450 +           i2s_node = of_parse_phandle(pdev->dev.of_node,
 451 +                                       "i2s-controller", 0);
 452 +
 453 +           if (i2s_node) {
 454 +               dai->cpu_dai_name = NULL;
 455 +               dai->cpu_of_node = i2s_node;
 456 +               dai->platform_name = NULL;
 457 +               dai->platform_of_node = i2s_node;
 458 +           }
 459 +       }
 460 +
 461         ret = snd_soc_register_card(&snd_rpi_hifiberry_dac);
 462         if (ret)
 463                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret);
 464 @@ -84,10 +99,17 @@ static int snd_rpi_hifiberry_dac_remove(struct platform_device *pdev)
 465         return snd_soc_unregister_card(&snd_rpi_hifiberry_dac);
 466  }
 467
 468 +static const struct of_device_id snd_rpi_hifiberry_dac_of_match[] = {
 469 +       { .compatible = "hifiberry,hifiberry-dac", },
 470 +       {},
 471 +};
 472 +MODULE_DEVICE_TABLE(of, snd_rpi_hifiberry_dac_of_match);
 473 +
 474  static struct platform_driver snd_rpi_hifiberry_dac_driver = {
 475          .driver = {
 476                  .name   = "snd-hifiberry-dac",
 477                  .owner  = THIS_MODULE,
 478 +               .of_match_table = snd_rpi_hifiberry_dac_of_match,
 479          },
 480          .probe          = snd_rpi_hifiberry_dac_probe,
 481          .remove         = snd_rpi_hifiberry_dac_remove,
 482 diff --git a/sound/soc/bcm/hifiberry_dacplus.c b/sound/soc/bcm/hifiberry_dacplus.c
 483 index c63387b..11e4f39 100644
 484 --- a/sound/soc/bcm/hifiberry_dacplus.c
 485 +++ b/sound/soc/bcm/hifiberry_dacplus.c
 486 @@ -90,6 +90,21 @@ static int snd_rpi_hifiberry_dacplus_probe(struct platform_device *pdev)
 487         int ret = 0;
 488
 489         snd_rpi_hifiberry_dacplus.dev = &pdev->dev;
 490 +
 491 +       if (pdev->dev.of_node) {
 492 +           struct device_node *i2s_node;
 493 +           struct snd_soc_dai_link *dai = &snd_rpi_hifiberry_dacplus_dai[0];
 494 +           i2s_node = of_parse_phandle(pdev->dev.of_node,
 495 +                                       "i2s-controller", 0);
 496 +
 497 +           if (i2s_node) {
 498 +               dai->cpu_dai_name = NULL;
 499 +               dai->cpu_of_node = i2s_node;
 500 +               dai->platform_name = NULL;
 501 +               dai->platform_of_node = i2s_node;
 502 +           }
 503 +       }
 504 +
 505         ret = snd_soc_register_card(&snd_rpi_hifiberry_dacplus);
 506         if (ret)
 507                 dev_err(&pdev->dev,
 508 @@ -103,10 +118,17 @@ static int snd_rpi_hifiberry_dacplus_remove(struct platform_device *pdev)
 509         return snd_soc_unregister_card(&snd_rpi_hifiberry_dacplus);
 510  }
 511
 512 +static const struct of_device_id snd_rpi_hifiberry_dacplus_of_match[] = {
 513 +       { .compatible = "hifiberry,hifiberry-dacplus", },
 514 +       {},
 515 +};
 516 +MODULE_DEVICE_TABLE(of, snd_rpi_hifiberry_dacplus_of_match);
 517 +
 518  static struct platform_driver snd_rpi_hifiberry_dacplus_driver = {
 519         .driver = {
 520                 .name   = "snd-rpi-hifiberry-dacplus",
 521                 .owner  = THIS_MODULE,
 522 +               .of_match_table = snd_rpi_hifiberry_dacplus_of_match,
 523         },
 524         .probe          = snd_rpi_hifiberry_dacplus_probe,
 525         .remove         = snd_rpi_hifiberry_dacplus_remove,
 526 diff --git a/sound/soc/bcm/hifiberry_digi.c b/sound/soc/bcm/hifiberry_digi.c
 527 index e4f769d..76af8a6 100644
 528 --- a/sound/soc/bcm/hifiberry_digi.c
 529 +++ b/sound/soc/bcm/hifiberry_digi.c
 530 @@ -125,6 +125,21 @@ static int snd_rpi_hifiberry_digi_probe(struct platform_device *pdev)
 531         int ret = 0;
 532
 533         snd_rpi_hifiberry_digi.dev = &pdev->dev;
 534 +
 535 +       if (pdev->dev.of_node) {
 536 +           struct device_node *i2s_node;
 537 +           struct snd_soc_dai_link *dai = &snd_rpi_hifiberry_digi_dai[0];
 538 +           i2s_node = of_parse_phandle(pdev->dev.of_node,
 539 +                                       "i2s-controller", 0);
 540 +
 541 +           if (i2s_node) {
 542 +               dai->cpu_dai_name = NULL;
 543 +               dai->cpu_of_node = i2s_node;
 544 +               dai->platform_name = NULL;
 545 +               dai->platform_of_node = i2s_node;
 546 +           }
 547 +       }
 548 +
 549         ret = snd_soc_register_card(&snd_rpi_hifiberry_digi);
 550         if (ret)
 551                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret);
 552 @@ -137,10 +152,17 @@ static int snd_rpi_hifiberry_digi_remove(struct platform_device *pdev)
 553         return snd_soc_unregister_card(&snd_rpi_hifiberry_digi);
 554  }
 555
 556 +static const struct of_device_id snd_rpi_hifiberry_digi_of_match[] = {
 557 +       { .compatible = "hifiberry,hifiberry-digi", },
 558 +       {},
 559 +};
 560 +MODULE_DEVICE_TABLE(of, snd_rpi_hifiberry_digi_of_match);
 561 +
 562  static struct platform_driver snd_rpi_hifiberry_digi_driver = {
 563         .driver = {
 564                 .name   = "snd-hifiberry-digi",
 565                 .owner  = THIS_MODULE,
 566 +               .of_match_table = snd_rpi_hifiberry_digi_of_match,
 567         },
 568         .probe          = snd_rpi_hifiberry_digi_probe,
 569         .remove         = snd_rpi_hifiberry_digi_remove,
 570 diff --git a/sound/soc/bcm/iqaudio-dac.c b/sound/soc/bcm/iqaudio-dac.c
 571 index 8d0e2ae..ee8cd6e 100644
 572 --- a/sound/soc/bcm/iqaudio-dac.c
 573 +++ b/sound/soc/bcm/iqaudio-dac.c
 574 @@ -76,6 +76,21 @@ static int snd_rpi_iqaudio_dac_probe(struct platform_device *pdev)
 575         int ret = 0;
 576
 577         snd_rpi_iqaudio_dac.dev = &pdev->dev;
 578 +
 579 +       if (pdev->dev.of_node) {
 580 +           struct device_node *i2s_node;
 581 +           struct snd_soc_dai_link *dai = &snd_rpi_iqaudio_dac_dai[0];
 582 +           i2s_node = of_parse_phandle(pdev->dev.of_node,
 583 +                                       "i2s-controller", 0);
 584 +
 585 +           if (i2s_node) {
 586 +               dai->cpu_dai_name = NULL;
 587 +               dai->cpu_of_node = i2s_node;
 588 +               dai->platform_name = NULL;
 589 +               dai->platform_of_node = i2s_node;
 590 +           }
 591 +       }
 592 +
 593         ret = snd_soc_register_card(&snd_rpi_iqaudio_dac);
 594         if (ret)
 595                 dev_err(&pdev->dev,
 596 @@ -93,6 +108,7 @@ static const struct of_device_id iqaudio_of_match[] = {
 597         { .compatible = "iqaudio,iqaudio-dac", },
 598         {},
 599  };
 600 +MODULE_DEVICE_TABLE(of, iqaudio_of_match);
 601
 602  static struct platform_driver snd_rpi_iqaudio_dac_driver = {
 603         .driver = {
 604 diff --git a/sound/soc/codecs/pcm5102a.c b/sound/soc/codecs/pcm5102a.c
 605 index 126f1e9..7c6598e 100644
 606 --- a/sound/soc/codecs/pcm5102a.c
 607 +++ b/sound/soc/codecs/pcm5102a.c
 608 @@ -47,12 +47,19 @@ static int pcm5102a_remove(struct platform_device *pdev)
 609         return 0;
 610  }
 611
 612 +static const struct of_device_id pcm5102a_of_match[] = {
 613 +       { .compatible = "ti,pcm5102a", },
 614 +       { }
 615 +};
 616 +MODULE_DEVICE_TABLE(of, pcm5102a_of_match);
 617 +
 618  static struct platform_driver pcm5102a_codec_driver = {
 619         .probe          = pcm5102a_probe,
 620         .remove         = pcm5102a_remove,
 621         .driver         = {
 622                 .name   = "pcm5102a-codec",
 623                 .owner  = THIS_MODULE,
 624 +               .of_match_table = pcm5102a_of_match,
 625         },
 626  };
 627
 628 --
 629 1.8.3.2
 630