target/linux/bcm27xx/patches-4.19/950-0525-drm-vc4-Set-the-display-number-when-querying-the-dis.patch

   1 From 1b9eb8d557c692e5f1dd831b5e7134e6d07a4dd4 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.org>
   3 Date: Tue, 9 Apr 2019 14:00:07 +0100
   4 Subject: [PATCH] drm/vc4: Set the display number when querying the
   5  display resolution
   6
   7 Without this the two displays got set to the same resolution.
   8 (Requires a firmware bug fix to work).
   9
  10 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
  11 ---
  12  drivers/gpu/drm/vc4/vc4_firmware_kms.c | 37 +++++++++++++++++++-------
  13  1 file changed, 27 insertions(+), 10 deletions(-)
  14
  15 --- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
  16 +++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
  17 @@ -75,6 +75,13 @@ struct mailbox_blank_display {
  18         u32 blank;
  19  };
  20
  21 +struct mailbox_get_width_height {
  22 +       struct rpi_firmware_property_tag_header tag1;
  23 +       u32 display;
  24 +       struct rpi_firmware_property_tag_header tag2;
  25 +       u32 wh[2];
  26 +};
  27 +
  28  static const struct vc_image_format {
  29         u32 drm;        /* DRM_FORMAT_* */
  30         u32 vc_image;   /* VC_IMAGE_* */
  31 @@ -192,6 +199,7 @@ struct vc4_fkms_connector {
  32          * hook.
  33          */
  34         struct drm_encoder *encoder;
  35 +       u32 display_idx;
  36  };
  37
  38  static inline struct vc4_fkms_connector *
  39 @@ -723,21 +731,27 @@ vc4_fkms_connector_detect(struct drm_con
  40  static int vc4_fkms_connector_get_modes(struct drm_connector *connector)
  41  {
  42         struct drm_device *dev = connector->dev;
  43 +       struct vc4_fkms_connector *fkms_connector =
  44 +               to_vc4_fkms_connector(connector);
  45         struct vc4_dev *vc4 = to_vc4_dev(dev);
  46 -       u32 wh[2] = {0, 0};
  47 -       int ret;
  48         struct drm_display_mode *mode;
  49 +       struct mailbox_get_width_height wh = {
  50 +               .tag1 = {RPI_FIRMWARE_FRAMEBUFFER_SET_DISPLAY_NUM, 4, 0, },
  51 +               .display = fkms_connector->display_idx,
  52 +               .tag2 = { RPI_FIRMWARE_FRAMEBUFFER_GET_PHYSICAL_WIDTH_HEIGHT,
  53 +                         8, 0, },
  54 +       };
  55 +       int ret;
  56 +
  57 +       ret = rpi_firmware_property_list(vc4->firmware, &wh, sizeof(wh));
  58
  59 -       ret = rpi_firmware_property(vc4->firmware,
  60 -                                   RPI_FIRMWARE_FRAMEBUFFER_GET_PHYSICAL_WIDTH_HEIGHT,
  61 -                                   &wh, sizeof(wh));
  62         if (ret) {
  63                 DRM_ERROR("Failed to get screen size: %d (0x%08x 0x%08x)\n",
  64 -                         ret, wh[0], wh[1]);
  65 +                         ret, wh.wh[0], wh.wh[1]);
  66                 return 0;
  67         }
  68
  69 -       mode = drm_cvt_mode(dev, wh[0], wh[1], 60 /* vrefresh */,
  70 +       mode = drm_cvt_mode(dev, wh.wh[0], wh.wh[1], 60 /* vrefresh */,
  71                             0, 0, false);
  72         drm_mode_probed_add(connector, mode);
  73
  74 @@ -772,8 +786,9 @@ static const struct drm_connector_helper
  75         .best_encoder = vc4_fkms_connector_best_encoder,
  76  };
  77
  78 -static struct drm_connector *vc4_fkms_connector_init(struct drm_device *dev,
  79 -                                                    struct drm_encoder *encoder)
  80 +static struct drm_connector *
  81 +vc4_fkms_connector_init(struct drm_device *dev, struct drm_encoder *encoder,
  82 +                       u32 display_idx)
  83  {
  84         struct drm_connector *connector = NULL;
  85         struct vc4_fkms_connector *fkms_connector;
  86 @@ -788,6 +803,7 @@ static struct drm_connector *vc4_fkms_co
  87         connector = &fkms_connector->base;
  88
  89         fkms_connector->encoder = encoder;
  90 +       fkms_connector->display_idx = display_idx;
  91
  92         drm_connector_init(dev, connector, &vc4_fkms_connector_funcs,
  93                            DRM_MODE_CONNECTOR_HDMIA);
  94 @@ -904,7 +920,8 @@ static int vc4_fkms_create_screen(struct
  95         drm_encoder_helper_add(&vc4_encoder->base,
  96                                &vc4_fkms_encoder_helper_funcs);
  97
  98 -       vc4_crtc->connector = vc4_fkms_connector_init(drm, &vc4_encoder->base);
  99 +       vc4_crtc->connector = vc4_fkms_connector_init(drm, &vc4_encoder->base,
 100 +                                                     display_idx);
 101         if (IS_ERR(vc4_crtc->connector)) {
 102                 ret = PTR_ERR(vc4_crtc->connector);
 103                 goto err_destroy_encoder;