target/linux/bcm27xx/patches-5.15/950-0714-drm-vc4-Convert-vc4_dsi-to-use-atomic-enable-disable.patch

   1 From 2a6dfa1110ab7d6d5fd4fcce0040219346e89498 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Wed, 15 Dec 2021 17:47:14 +0000
   4 Subject: [PATCH] drm/vc4: Convert vc4_dsi to use atomic
   5  enable/disable/mode_set.
   6
   7 The atomic calls are preferred as the non-atomic ones
   8 are deprecated. In preparation for conversion to a bridge,
   9 switch to the atomic calls.
  10
  11 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  12 ---
  13  drivers/gpu/drm/vc4/vc4_dsi.c | 23 +++++++++++++++--------
  14  1 file changed, 15 insertions(+), 8 deletions(-)
  15
  16 --- a/drivers/gpu/drm/vc4/vc4_dsi.c
  17 +++ b/drivers/gpu/drm/vc4/vc4_dsi.c
  18 @@ -792,7 +792,8 @@ dsi_esc_timing(u32 ns)
  19         return DIV_ROUND_UP(ns, ESC_TIME_NS);
  20  }
  21
  22 -static void vc4_dsi_encoder_disable(struct drm_encoder *encoder)
  23 +static void vc4_dsi_encoder_disable(struct drm_encoder *encoder,
  24 +                                   struct drm_atomic_state *state)
  25  {
  26         struct vc4_dsi_encoder *vc4_encoder = to_vc4_dsi_encoder(encoder);
  27         struct vc4_dsi *dsi = vc4_encoder->dsi;
  28 @@ -858,18 +859,19 @@ static bool vc4_dsi_encoder_mode_fixup(s
  29  }
  30
  31  static void vc4_dsi_encoder_mode_set(struct drm_encoder *encoder,
  32 -                                    struct drm_display_mode *user_mode,
  33 -                                    struct drm_display_mode *adjusted_mode)
  34 +                                    struct drm_crtc_state *crtc_state,
  35 +                                    struct drm_connector_state *conn_state)
  36  {
  37         struct vc4_dsi_encoder *vc4_encoder = to_vc4_dsi_encoder(encoder);
  38         struct vc4_dsi *dsi = vc4_encoder->dsi;
  39         struct device *dev = &dsi->pdev->dev;
  40 +       const struct drm_display_mode *mode;
  41         bool debug_dump_regs = false;
  42         unsigned long hs_clock;
  43         u32 ui_ns;
  44         /* Minimum LP state duration in escape clock cycles. */
  45         u32 lpx = dsi_esc_timing(60);
  46 -       unsigned long pixel_clock_hz = adjusted_mode->clock * 1000;
  47 +       unsigned long pixel_clock_hz;
  48         unsigned long dsip_clock;
  49         unsigned long phy_clock;
  50         int ret;
  51 @@ -886,6 +888,10 @@ static void vc4_dsi_encoder_mode_set(str
  52                 drm_print_regset32(&p, &dsi->regset);
  53         }
  54
  55 +       mode = &crtc_state->adjusted_mode;
  56 +
  57 +       pixel_clock_hz = mode->clock * 1000;
  58 +
  59         /* Round up the clk_set_rate() request slightly, since
  60          * PLLD_DSI1 is an integer divider and its rate selection will
  61          * never round up.
  62 @@ -1098,7 +1104,8 @@ static void vc4_dsi_encoder_mode_set(str
  63         vc4_dsi_ulps(dsi, false);
  64  }
  65
  66 -static void vc4_dsi_encoder_enable(struct drm_encoder *encoder)
  67 +static void vc4_dsi_encoder_enable(struct drm_encoder *encoder,
  68 +                                  struct drm_atomic_state *state)
  69  {
  70         struct vc4_dsi_encoder *vc4_encoder = to_vc4_dsi_encoder(encoder);
  71         struct vc4_dsi *dsi = vc4_encoder->dsi;
  72 @@ -1355,10 +1362,10 @@ static const struct mipi_dsi_host_ops vc
  73  };
  74
  75  static const struct drm_encoder_helper_funcs vc4_dsi_encoder_helper_funcs = {
  76 -       .disable = vc4_dsi_encoder_disable,
  77 -       .enable = vc4_dsi_encoder_enable,
  78 +       .atomic_disable = vc4_dsi_encoder_disable,
  79 +       .atomic_enable = vc4_dsi_encoder_enable,
  80         .mode_fixup = vc4_dsi_encoder_mode_fixup,
  81 -       .mode_set = vc4_dsi_encoder_mode_set,
  82 +       .atomic_mode_set = vc4_dsi_encoder_mode_set,
  83  };
  84
  85  static const struct vc4_dsi_variant bcm2711_dsi1_variant = {