target/linux/bcm27xx/patches-5.4/950-0331-drm-vc4-Added-calls-for-firmware-display-blank-unbla.patch

   1 From b92ed4ca0f9be3c8cc1a21dbbef346338d336329 Mon Sep 17 00:00:00 2001
   2 From: James Hughes <james.hughes@raspberrypi.org>
   3 Date: Wed, 16 Oct 2019 14:49:23 +0100
   4 Subject: [PATCH] drm:vc4 Added calls for firmware display
   5  blank/unblank
   6
   7 Requires new display power mailbox call to be present.
   8
   9 Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
  10 ---
  11  drivers/gpu/drm/vc4/vc4_firmware_kms.c     | 26 ++++++++++++++++++++++
  12  include/soc/bcm2835/raspberrypi-firmware.h |  2 +-
  13  2 files changed, 27 insertions(+), 1 deletion(-)
  14
  15 --- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
  16 +++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
  17 @@ -94,6 +94,12 @@ struct mailbox_blank_display {
  18         u32 blank;
  19  };
  20
  21 +struct mailbox_display_pwr {
  22 +       struct rpi_firmware_property_tag_header tag1;
  23 +       u32 display;
  24 +       u32 state;
  25 +};
  26 +
  27  struct mailbox_get_edid {
  28         struct rpi_firmware_property_tag_header tag1;
  29         u32 block;
  30 @@ -274,6 +280,8 @@ to_vc4_crtc_state(struct drm_crtc_state
  31  struct vc4_fkms_encoder {
  32         struct drm_encoder base;
  33         bool hdmi_monitor;
  34 +       bool rgb_range_selectable;
  35 +       int display_num;
  36  };
  37
  38  static inline struct vc4_fkms_encoder *
  39 @@ -1637,13 +1645,29 @@ static const struct drm_encoder_funcs vc
  40         .destroy = vc4_fkms_encoder_destroy,
  41  };
  42
  43 +static void vc4_fkms_display_power(struct drm_encoder *encoder, bool power)
  44 +{
  45 +       struct vc4_fkms_encoder *vc4_encoder = to_vc4_fkms_encoder(encoder);
  46 +       struct vc4_dev *vc4 = to_vc4_dev(encoder->dev);
  47 +
  48 +       struct mailbox_display_pwr pwr = {
  49 +               .tag1 = {RPI_FIRMWARE_SET_DISPLAY_POWER, 8, 0, },
  50 +               .display = vc4_encoder->display_num,
  51 +               .state = power ? 1 : 0,
  52 +       };
  53 +
  54 +       rpi_firmware_property_list(vc4->firmware, &pwr, sizeof(pwr));
  55 +}
  56 +
  57  static void vc4_fkms_encoder_enable(struct drm_encoder *encoder)
  58  {
  59 +       vc4_fkms_display_power(encoder, true);
  60         DRM_DEBUG_KMS("Encoder_enable\n");
  61  }
  62
  63  static void vc4_fkms_encoder_disable(struct drm_encoder *encoder)
  64  {
  65 +       vc4_fkms_display_power(encoder, false);
  66         DRM_DEBUG_KMS("Encoder_disable\n");
  67  }
  68
  69 @@ -1719,6 +1743,8 @@ static int vc4_fkms_create_screen(struct
  70         if (!vc4_encoder)
  71                 return -ENOMEM;
  72         vc4_crtc->encoder = &vc4_encoder->base;
  73 +
  74 +       vc4_encoder->display_num = display_ref;
  75         vc4_encoder->base.possible_crtcs |= drm_crtc_mask(crtc) ;
  76
  77         drm_encoder_init(drm, &vc4_encoder->base, &vc4_fkms_encoder_funcs,
  78 --- a/include/soc/bcm2835/raspberrypi-firmware.h
  79 +++ b/include/soc/bcm2835/raspberrypi-firmware.h
  80 @@ -153,7 +153,7 @@ enum rpi_firmware_property_tag {
  81         RPI_FIRMWARE_GET_DISPLAY_TIMING =                     0x00040017,
  82         RPI_FIRMWARE_SET_TIMING =                             0x00048017,
  83         RPI_FIRMWARE_GET_DISPLAY_CFG =                        0x00040018,
  84 -
  85 +       RPI_FIRMWARE_SET_DISPLAY_POWER =                      0x00048019,
  86         RPI_FIRMWARE_GET_COMMAND_LINE =                       0x00050001,
  87         RPI_FIRMWARE_GET_DMA_CHANNELS =                       0x00060001,
  88  };