target/linux/bcm27xx/patches-5.15/950-0603-vc4-drm-Ignore-vc4_hdmi-output_enabled-for-allowing-.patch

   1 From 68522ed7c1135fd5ea5b4541d557bdbdcba80669 Mon Sep 17 00:00:00 2001
   2 From: popcornmix <popcornmix@gmail.com>
   3 Date: Wed, 8 Dec 2021 15:57:15 +0000
   4 Subject: [PATCH] vc4/drm: Ignore vc4_hdmi->output_enabled for allowing
   5  audio (#4759)
   6
   7 Otherwise we reject audio playback when switching hdmi modes
   8
   9 Signed-off-by: Dom Cobley <popcornmix@gmail.com>
  10 ---
  11  drivers/gpu/drm/vc4/vc4_hdmi.c | 29 ++---------------------------
  12  drivers/gpu/drm/vc4/vc4_hdmi.h |  6 ------
  13  2 files changed, 2 insertions(+), 33 deletions(-)
  14
  15 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c
  16 +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
  17 @@ -211,6 +211,7 @@ vc4_hdmi_connector_detect(struct drm_con
  18                         connected = true;
  19         }
  20
  21 +       vc4_hdmi->encoder.hdmi_monitor = false;
  22         if (connected) {
  23                 if (connector->status != connector_status_connected) {
  24                         struct edid *edid = drm_get_edid(connector, vc4_hdmi->ddc);
  25 @@ -731,15 +732,6 @@ static void vc4_hdmi_encoder_post_crtc_p
  26         mutex_unlock(&vc4_hdmi->mutex);
  27  }
  28
  29 -static void vc4_hdmi_encoder_disable(struct drm_encoder *encoder)
  30 -{
  31 -       struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
  32 -
  33 -       mutex_lock(&vc4_hdmi->mutex);
  34 -       vc4_hdmi->output_enabled = false;
  35 -       mutex_unlock(&vc4_hdmi->mutex);
  36 -}
  37 -
  38  static void vc4_hdmi_csc_setup(struct vc4_hdmi *vc4_hdmi, bool enable)
  39  {
  40         unsigned long flags;
  41 @@ -1220,15 +1212,6 @@ static void vc4_hdmi_encoder_post_crtc_e
  42         mutex_unlock(&vc4_hdmi->mutex);
  43  }
  44
  45 -static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder)
  46 -{
  47 -       struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
  48 -
  49 -       mutex_lock(&vc4_hdmi->mutex);
  50 -       vc4_hdmi->output_enabled = true;
  51 -       mutex_unlock(&vc4_hdmi->mutex);
  52 -}
  53 -
  54  static void vc4_hdmi_encoder_atomic_mode_set(struct drm_encoder *encoder,
  55                                              struct drm_crtc_state *crtc_state,
  56                                              struct drm_connector_state *conn_state)
  57 @@ -1322,8 +1305,6 @@ static const struct drm_encoder_helper_f
  58         .atomic_check = vc4_hdmi_encoder_atomic_check,
  59         .atomic_mode_set = vc4_hdmi_encoder_atomic_mode_set,
  60         .mode_valid = vc4_hdmi_encoder_mode_valid,
  61 -       .disable = vc4_hdmi_encoder_disable,
  62 -       .enable = vc4_hdmi_encoder_enable,
  63  };
  64
  65  static u32 vc4_hdmi_channel_map(struct vc4_hdmi *vc4_hdmi, u32 channel_mask)
  66 @@ -1423,16 +1404,10 @@ static bool vc4_hdmi_audio_can_stream(st
  67         lockdep_assert_held(&vc4_hdmi->mutex);
  68
  69         /*
  70 -        * If the controller is disabled, prevent any ALSA output.
  71 -        */
  72 -       if (!vc4_hdmi->output_enabled)
  73 -               return false;
  74 -
  75 -       /*
  76          * If the encoder is currently in DVI mode, treat the codec DAI
  77          * as missing.
  78          */
  79 -       if (!(HDMI_READ(HDMI_RAM_PACKET_CONFIG) & VC4_HDMI_RAM_PACKET_ENABLE))
  80 +       if (!vc4_hdmi->encoder.hdmi_monitor)
  81                 return false;
  82
  83         return true;
  84 --- a/drivers/gpu/drm/vc4/vc4_hdmi.h
  85 +++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
  86 @@ -209,12 +209,6 @@ struct vc4_hdmi {
  87         struct drm_display_mode saved_adjusted_mode;
  88
  89         /**
  90 -        * @output_enabled: Is the HDMI controller currently active?
  91 -        * Protected by @mutex.
  92 -        */
  93 -       bool output_enabled;
  94 -
  95 -       /**
  96          * @scdc_enabled: Is the HDMI controller currently running with
  97          * the scrambler on? Protected by @mutex.
  98          */