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0304-ARM-bcm2835-add-i2s-gpio28-31-for-cm.patch

0304-ARM-bcm2835-add-i2s-gpio28-31-for-cm.patch 1.9 KB
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  1. From 791046d531f798944715a214748387449ae9c4b8 Mon Sep 17 00:00:00 2001
    2. 

  2. From: Martin Sperl <kernel@martin.sperl.org>
    3. 

  3. Date: Sat, 23 Apr 2016 15:21:41 +0000
    4. 

  4. Subject: [PATCH 304/381] ARM: bcm2835: add i2s-gpio28-31 for cm
    5. 

  5. 

  6. Add i2s-gpio28-31 overlay for compute module
    7. 

  7. so that i2s is using gpio28-31
    8. 

  8. 

  9. Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
    10. 

  10. ---
    11. 

  11.  arch/arm/boot/dts/overlays/Makefile                  |  1 +
    12. 

  12.  arch/arm/boot/dts/overlays/README                    |  6 ++++++
    13. 

  13.  arch/arm/boot/dts/overlays/i2s-gpio28-31-overlay.dts | 18 ++++++++++++++++++
    14. 

  14.  3 files changed, 25 insertions(+)
    15. 

  15.  create mode 100644 arch/arm/boot/dts/overlays/i2s-gpio28-31-overlay.dts
    16. 

  16. 

  17. --- a/arch/arm/boot/dts/overlays/Makefile
    18. 

  18. +++ b/arch/arm/boot/dts/overlays/Makefile
    19. 

  19. @@ -37,6 +37,7 @@ dtbo-$(RPI_DT_OVERLAYS) += i2c-mux-pca95
    20. 

  20.  dtbo-$(RPI_DT_OVERLAYS) += i2c-pwm-pca9685a.dtbo
    21. 

  21.  dtbo-$(RPI_DT_OVERLAYS) += i2c0-bcm2708.dtbo
    22. 

  22.  dtbo-$(RPI_DT_OVERLAYS) += i2c1-bcm2708.dtbo
    23. 

  23. +dtbo-$(RPI_DT_OVERLAYS) += i2s-gpio28-31.dtbo
    24. 

  24.  dtbo-$(RPI_DT_OVERLAYS) += i2s-mmap.dtbo
    25. 

  25.  dtbo-$(RPI_DT_OVERLAYS) += iqaudio-dac.dtbo
    26. 

  26.  dtbo-$(RPI_DT_OVERLAYS) += iqaudio-dacplus.dtbo
    27. 

  27. --- a/arch/arm/boot/dts/overlays/README
    28. 

  28. +++ b/arch/arm/boot/dts/overlays/README
    29. 

  29. @@ -464,6 +464,12 @@ Params: sda1_pin                GPIO pin
    30. 

  30.                                  default 4)
    31. 

  31.  
    32. 

  32.  
    33. 

  33. +Name:   i2s-gpio28-31
    34. 

  34. +Info:   move I2S function block to GPIO 28 to 31
    35. 

  35. +Load:   dtoverlay=i2s-gpio28-31
    36. 

  36. +Params: <None>
    37. 

  37. +
    38. 

  38. +
    39. 

  39.  Name:   i2s-mmap
    40. 

  40.  Info:   Enables mmap support in the bcm2708-i2s driver
    41. 

  41.  Load:   dtoverlay=i2s-mmap
    42. 

  42. --- /dev/null
    43. 

  43. +++ b/arch/arm/boot/dts/overlays/i2s-gpio28-31-overlay.dts
    44. 

  44. @@ -0,0 +1,18 @@
    45. 

  45. +/*
    46. 

  46. + * Device tree overlay to move i2s to gpio 28 to 31 on CM
    47. 

  47. + */
    48. 

  48. +
    49. 

  49. +/dts-v1/;
    50. 

  50. +/plugin/;
    51. 

  51. +
    52. 

  52. +/ {
    53. 

  53. +	compatible = "brcm,bcm2835", "brcm,bcm2836", "brcm,bcm2708", "brcm,bcm2709";
    54. 

  54. +
    55. 

  55. +	fragment@0 {
    56. 

  56. +		target = <&i2s_pins>;
    57. 

  57. +		__overlay__ {
    58. 

  58. +			brcm,pins = <28 29 30 31>;
    59. 

  59. +			brcm,function = <6>; /* alt2 */
    60. 

  60. +		};
    61. 

  61. +	};
    62. 

  62. +};
    63.