git.openwrt.org Git - openwrt/staging/linusw.git/blob

   1 From dde3464b8025dc50f98c611702a9f837538f2284 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Wed, 11 Oct 2023 11:03:51 +0100
   4 Subject: [PATCH 0680/1085] dt: Add overrides for drm framebuffer allocations
   5  on Pi5
   6
   7 Adds dtparam overrides to the base Pi5 DT such that vc4,
   8 DSI0, DSI1, or DPI can be requested to be /dev/fb[012].
   9 No override is specified by default, so the order will be
  10 based on probe order (aka semi-random). Any device that
  11 doesn't have an override specified will be placed above
  12 all specified overrides. Having an fb1 or fb2 override but
  13 no fb0 one will result in no console via fbcon.
  14
  15 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  16 ---
  17  .../arm/boot/dts/broadcom/bcm2712-rpi-5-b.dts | 12 ++++++++++
  18  arch/arm/boot/dts/overlays/README             | 24 +++++++++++++++++++
  19  2 files changed, 36 insertions(+)
  20
  21 --- a/arch/arm/boot/dts/broadcom/bcm2712-rpi-5-b.dts
  22 +++ b/arch/arm/boot/dts/broadcom/bcm2712-rpi-5-b.dts
  23 @@ -824,5 +824,17 @@ spi10_cs_pins: &spi10_cs_gpio1 {};
  24                 act_led_trigger = <&act_led>, "linux,default-trigger";
  25                 pwr_led_activelow = <&pwr_led>, "gpios:8";
  26                 pwr_led_trigger = <&pwr_led>, "linux,default-trigger";
  27 +               drm_fb0_rp1_dsi0 = <&aliases>, "drm_fb0=",&dsi0;
  28 +               drm_fb0_rp1_dsi1 = <&aliases>, "drm_fb0=",&dsi1;
  29 +               drm_fb0_rp1_dpi = <&aliases>, "drm_fb0=",&dpi;
  30 +               drm_fb0_vc4 = <&aliases>, "drm_fb0=",&vc4;
  31 +               drm_fb1_rp1_dsi0 = <&aliases>, "drm_fb1=",&dsi0;
  32 +               drm_fb1_rp1_dsi1 = <&aliases>, "drm_fb1=",&dsi1;
  33 +               drm_fb1_rp1_dpi = <&aliases>, "drm_fb1=",&dpi;
  34 +               drm_fb1_vc4 = <&aliases>, "drm_fb1=",&vc4;
  35 +               drm_fb2_rp1_dsi0 = <&aliases>, "drm_fb2=",&dsi0;
  36 +               drm_fb2_rp1_dsi1 = <&aliases>, "drm_fb2=",&dsi1;
  37 +               drm_fb2_rp1_dpi = <&aliases>, "drm_fb2=",&dpi;
  38 +               drm_fb2_vc4 = <&aliases>, "drm_fb2=",&vc4;
  39         };
  40  };
  41 --- a/arch/arm/boot/dts/overlays/README
  42 +++ b/arch/arm/boot/dts/overlays/README
  43 @@ -173,6 +173,30 @@ Params:
  44          cooling_fan             Enables the Pi 5 cooling fan (enabled
  45                                  automatically by the firmware)
  46
  47 +        drm_fb0_rp1_dpi         Assign /dev/fb0 to the RP1 DPI output
  48 +
  49 +        drm_fb0_rp1_dsi0        Assign /dev/fb0 to the RP1 DSI0 output
  50 +
  51 +        drm_fb0_rp1_dsi1        Assign /dev/fb0 to the RP1 DSI1 output
  52 +
  53 +        drm_fb0_vc4             Assign /dev/fb0 to the vc4 outputs
  54 +
  55 +        drm_fb1_rp1_dpi         Assign /dev/fb1 to the RP1 DPI output
  56 +
  57 +        drm_fb1_rp1_dsi0        Assign /dev/fb1 to the RP1 DSI0 output
  58 +
  59 +        drm_fb1_rp1_dsi1        Assign /dev/fb1 to the RP1 DSI1 output
  60 +
  61 +        drm_fb1_vc4             Assign /dev/fb1 to the vc4 outputs
  62 +
  63 +        drm_fb2_rp1_dpi         Assign /dev/fb2 to the RP1 DPI output
  64 +
  65 +        drm_fb2_rp1_dsi0        Assign /dev/fb2 to the RP1 DSI0 output
  66 +
  67 +        drm_fb2_rp1_dsi1        Assign /dev/fb2 to the RP1 DSI1 output
  68 +
  69 +        drm_fb2_vc4             Assign /dev/fb2 to the vc4 outputs
  70 +
  71          eee                     Enable Energy Efficient Ethernet support for
  72                                  compatible devices (default "on"). See also
  73                                  "tx_lpi_timer". Pi3B+ only.