target/linux/brcm2708/patches-4.4/0102-drm-vc4-Enable-VC4-modules-and-increase-CMA-size-wit.patch

   1 From e7c59032e2b16f07a4e836b6f417a7cea5d66b2d Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.org>
   3 Date: Mon, 2 Nov 2015 17:07:33 +0000
   4 Subject: [PATCH 102/127] drm/vc4: Enable VC4 modules, and increase CMA size
   5  with overlay
   6
   7 If using the overlay, be careful not to boot to GUI or run startx,
   8 or the Pi will almost hang, reporting stalls in kernel threads.
   9 ---
  10  arch/arm/boot/dts/overlays/README                  |  8 ++
  11  arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts | 95 ++++++++++++++++++++++
  12  arch/arm/configs/bcm2709_defconfig                 |  2 +
  13  arch/arm/configs/bcmrpi_defconfig                  |  2 +
  14  4 files changed, 107 insertions(+)
  15  create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts
  16
  17 --- a/arch/arm/boot/dts/overlays/README
  18 +++ b/arch/arm/boot/dts/overlays/README
  19 @@ -601,6 +601,14 @@ Params: txd1_pin                 GPIO pi
  20          rxd1_pin                 GPIO pin for RXD1 (15, 33 or 41 - default 15)
  21
  22
  23 +Name:   vc4-kms-v3d
  24 +Info:   Enable Eric Anholt's DRM VC4 HDMI/HVS/V3D driver. Running startx or
  25 +        booting to GUI while this overlay is in use will cause interesting
  26 +        lockups.
  27 +Load:   dtoverlay=vc4-kms-v3d
  28 +Params: <None>
  29 +
  30 +
  31  Name:   vga666
  32  Info:   Overlay for the Fen Logic VGA666 board
  33          This uses GPIOs 2-21 (so no I2C), and activates the output 2-3 seconds
  34 --- /dev/null
  35 +++ b/arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts
  36 @@ -0,0 +1,95 @@
  37 +/*
  38 + * vc4-kms-v3d-overlay.dts
  39 + */
  40 +
  41 +/dts-v1/;
  42 +/plugin/;
  43 +
  44 +#include "dt-bindings/clock/bcm2835.h"
  45 +#include "dt-bindings/gpio/gpio.h"
  46 +
  47 +/ {
  48 +       compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
  49 +
  50 +       fragment@0 {
  51 +               target = <&i2c2>;
  52 +               __overlay__  {
  53 +                       status = "okay";
  54 +               };
  55 +       };
  56 +
  57 +       fragment@1 {
  58 +               target = <&cprman>;
  59 +               __overlay__  {
  60 +                       status = "okay";
  61 +               };
  62 +       };
  63 +
  64 +       fragment@2 {
  65 +               target = <&fb>;
  66 +               __overlay__  {
  67 +                       status = "disabled";
  68 +               };
  69 +       };
  70 +
  71 +       fragment@3 {
  72 +               target = <&soc>;
  73 +               __overlay__  {
  74 +                       #address-cells = <1>;
  75 +                       #size-cells = <1>;
  76 +
  77 +                       pixelvalve@7e206000 {
  78 +                               compatible = "brcm,bcm2835-pixelvalve0";
  79 +                               reg = <0x7e206000 0x100>;
  80 +                               interrupts = <2 13>; /* pwa0 */
  81 +                       };
  82 +
  83 +                       pixelvalve@7e207000 {
  84 +                               compatible = "brcm,bcm2835-pixelvalve1";
  85 +                               reg = <0x7e207000 0x100>;
  86 +                               interrupts = <2 14>; /* pwa1 */
  87 +                       };
  88 +
  89 +                       hvs@7e400000 {
  90 +                               compatible = "brcm,bcm2835-hvs";
  91 +                               reg = <0x7e400000 0x6000>;
  92 +                               interrupts = <2 1>;
  93 +                       };
  94 +
  95 +                       pixelvalve@7e807000 {
  96 +                               compatible = "brcm,bcm2835-pixelvalve2";
  97 +                               reg = <0x7e807000 0x100>;
  98 +                               interrupts = <2 10>; /* pixelvalve */
  99 +                       };
 100 +
 101 +                       hdmi@7e902000 {
 102 +                               compatible = "brcm,bcm2835-hdmi";
 103 +                               reg = <0x7e902000 0x600>,
 104 +                                     <0x7e808000 0x100>;
 105 +                               interrupts = <2 8>, <2 9>;
 106 +                               ddc = <&i2c2>;
 107 +                               hpd-gpio = <&gpio 46 GPIO_ACTIVE_HIGH>;
 108 +                               clocks = <&cprman BCM2835_PLLH_PIX>,
 109 +                                        <&cprman BCM2835_CLOCK_HSM>;
 110 +                               clock-names = "pixel", "hdmi";
 111 +                       };
 112 +
 113 +                       v3d@7ec00000 {
 114 +                               compatible = "brcm,vc4-v3d";
 115 +                               reg = <0x7ec00000 0x1000>;
 116 +                               interrupts = <1 10>;
 117 +                       };
 118 +
 119 +                       gpu@7e4c0000 {
 120 +                               compatible = "brcm,bcm2835-vc4";
 121 +                       };
 122 +               };
 123 +       };
 124 +
 125 +       fragment@4 {
 126 +               target-path = "/chosen";
 127 +               __overlay__ {
 128 +                       bootargs = "cma=256M@512M";
 129 +               };
 130 +       };
 131 +};
 132 --- a/arch/arm/configs/bcm2709_defconfig
 133 +++ b/arch/arm/configs/bcm2709_defconfig
 134 @@ -802,6 +802,8 @@ CONFIG_VIDEO_TW9903=m
 135  CONFIG_VIDEO_TW9906=m
 136  CONFIG_VIDEO_OV7640=m
 137  CONFIG_VIDEO_MT9V011=m
 138 +CONFIG_DRM=m
 139 +CONFIG_DRM_VC4=m
 140  CONFIG_FB=y
 141  CONFIG_FB_BCM2708=y
 142  CONFIG_FB_UDL=m
 143 --- a/arch/arm/configs/bcmrpi_defconfig
 144 +++ b/arch/arm/configs/bcmrpi_defconfig
 145 @@ -795,6 +795,8 @@ CONFIG_VIDEO_TW9903=m
 146  CONFIG_VIDEO_TW9906=m
 147  CONFIG_VIDEO_OV7640=m
 148  CONFIG_VIDEO_MT9V011=m
 149 +CONFIG_DRM=m
 150 +CONFIG_DRM_VC4=m
 151  CONFIG_FB=y
 152  CONFIG_FB_BCM2708=y
 153  CONFIG_FB_UDL=m