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imx8mm-verdin-dev.dtsi

imx8mm-verdin-dev.dtsi 1.4 KB
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  1. // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
    2. 

  2. /*
    3. 

  3.  * Copyright 2022 Toradex
    4. 

  4.  */
    5. 

  5. 

  6. #include "imx8mm-verdin-dahlia.dtsi"
    7. 

  7. 

  8. / {
    9. 

  9. 	sound_card: sound-card {
    10. 

  10. 		compatible = "simple-audio-card";
    11. 

  11. 		simple-audio-card,bitclock-master = <&dailink_master>;
    12. 

  12. 		simple-audio-card,format = "i2s";
    13. 

  13. 		simple-audio-card,frame-master = <&dailink_master>;
    14. 

  14. 		simple-audio-card,mclk-fs = <256>;
    15. 

  15. 		simple-audio-card,name = "imx8mm-nau8822";
    16. 

  16. 		simple-audio-card,routing =
    17. 

  17. 			"Headphones", "LHP",
    18. 

  18. 			"Headphones", "RHP",
    19. 

  19. 			"Speaker", "LSPK",
    20. 

  20. 			"Speaker", "RSPK",
    21. 

  21. 			"Line Out", "AUXOUT1",
    22. 

  22. 			"Line Out", "AUXOUT2",
    23. 

  23. 			"LAUX", "Line In",
    24. 

  24. 			"RAUX", "Line In",
    25. 

  25. 			"LMICP", "Mic In",
    26. 

  26. 			"RMICP", "Mic In";
    27. 

  27. 		simple-audio-card,widgets =
    28. 

  28. 			"Headphones", "Headphones",
    29. 

  29. 			"Line Out", "Line Out",
    30. 

  30. 			"Speaker", "Speaker",
    31. 

  31. 			"Microphone", "Mic In",
    32. 

  32. 			"Line", "Line In";
    33. 

  33. 

  34. 		dailink_master: simple-audio-card,codec {
    35. 

  35. 			clocks = <&clk IMX8MM_CLK_SAI2_ROOT>;
    36. 

  36. 			sound-dai = <&nau8822_1a>;
    37. 

  37. 		};
    38. 

  38. 

  39. 		simple-audio-card,cpu {
    40. 

  40. 			sound-dai = <&sai2>;
    41. 

  41. 		};
    42. 

  42. 	};
    43. 

  43. };
    44. 

  44. 

  45. &gpio_expander_21 {
    46. 

  46. 	status = "okay";
    47. 

  47. };
    48. 

  48. 

  49. /* Verdin I2C_1 */
    50. 

  50. &i2c4 {
    51. 

  51. 	/* Audio Codec */
    52. 

  52. 	nau8822_1a: audio-codec@1a {
    53. 

  53. 		compatible = "nuvoton,nau8822";
    54. 

  54. 		reg = <0x1a>;
    55. 

  55. 	};
    56. 

  56. };
    57. 

  57. 

  58. /* Verdin UART_1, connector X50 through RS485 transceiver */
    59. 

  59. &uart2 {
    60. 

  60. 	linux,rs485-enabled-at-boot-time;
    61. 

  61. 	rs485-rts-active-low;
    62. 

  62. 	rs485-rx-during-tx;
    63. 

  63. };
    64. 

  64. 

  65. /* Limit frequency on dev board due to long traces and bad signal integrity */
    66. 

  66. &usdhc2 {
    67. 

  67. 	max-frequency = <100000000>;
    68. 

  68. };
    69.