target/linux/bcm27xx/patches-5.15/950-0427-drm-vc4-Add-all-the-HDMI-registers-into-the-debugfs-.patch

   1 From b6d1141860db42137660a44a8c1713a33e6e5833 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Wed, 21 Oct 2020 18:34:56 +0100
   4 Subject: [PATCH] drm/vc4: Add all the HDMI registers into the debugfs
   5  dumps
   6
   7 The vc5 HDMI registers hadn't been added into the debugfs
   8 register sets, therefore weren't dumped on request.
   9 Add them in.
  10
  11 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  12 ---
  13  drivers/gpu/drm/vc4/vc4_hdmi.c | 39 ++++++++++++++++++++++++++++++++++
  14  drivers/gpu/drm/vc4/vc4_hdmi.h |  8 +++++++
  15  2 files changed, 47 insertions(+)
  16
  17 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c
  18 +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
  19 @@ -116,6 +116,12 @@ static int vc4_hdmi_debugfs_regs(struct
  20
  21         drm_print_regset32(&p, &vc4_hdmi->hdmi_regset);
  22         drm_print_regset32(&p, &vc4_hdmi->hd_regset);
  23 +       drm_print_regset32(&p, &vc4_hdmi->cec_regset);
  24 +       drm_print_regset32(&p, &vc4_hdmi->csc_regset);
  25 +       drm_print_regset32(&p, &vc4_hdmi->dvp_regset);
  26 +       drm_print_regset32(&p, &vc4_hdmi->phy_regset);
  27 +       drm_print_regset32(&p, &vc4_hdmi->ram_regset);
  28 +       drm_print_regset32(&p, &vc4_hdmi->rm_regset);
  29
  30         return 0;
  31  }
  32 @@ -2369,6 +2375,7 @@ static int vc5_hdmi_init_resources(struc
  33         struct platform_device *pdev = vc4_hdmi->pdev;
  34         struct device *dev = &pdev->dev;
  35         struct resource *res;
  36 +       int ret;
  37
  38         res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hdmi");
  39         if (!res)
  40 @@ -2465,6 +2472,38 @@ static int vc5_hdmi_init_resources(struc
  41                 return PTR_ERR(vc4_hdmi->reset);
  42         }
  43
  44 +       ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->hdmi_regset, VC4_HDMI);
  45 +       if (ret)
  46 +               return ret;
  47 +
  48 +       ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->hd_regset, VC4_HD);
  49 +       if (ret)
  50 +               return ret;
  51 +
  52 +       ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->cec_regset, VC5_CEC);
  53 +       if (ret)
  54 +               return ret;
  55 +
  56 +       ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->csc_regset, VC5_CSC);
  57 +       if (ret)
  58 +               return ret;
  59 +
  60 +       ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->dvp_regset, VC5_DVP);
  61 +       if (ret)
  62 +               return ret;
  63 +
  64 +       ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->phy_regset, VC5_PHY);
  65 +       if (ret)
  66 +               return ret;
  67 +
  68 +       ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->ram_regset, VC5_RAM);
  69 +       if (ret)
  70 +               return ret;
  71 +
  72 +       ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->rm_regset, VC5_RM);
  73 +       if (ret)
  74 +               return ret;
  75 +
  76         return 0;
  77  }
  78
  79 --- a/drivers/gpu/drm/vc4/vc4_hdmi.h
  80 +++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
  81 @@ -216,6 +216,14 @@ struct vc4_hdmi {
  82          * the scrambler on? Protected by @mutex.
  83          */
  84         bool scdc_enabled;
  85 +
  86 +       /* VC5 debugfs regset */
  87 +       struct debugfs_regset32 cec_regset;
  88 +       struct debugfs_regset32 csc_regset;
  89 +       struct debugfs_regset32 dvp_regset;
  90 +       struct debugfs_regset32 phy_regset;
  91 +       struct debugfs_regset32 ram_regset;
  92 +       struct debugfs_regset32 rm_regset;
  93  };
  94
  95  static inline struct vc4_hdmi *