target/linux/bcm27xx/patches-5.10/950-0539-drm-vc4-hdmi-Convert-to-the-new-clock-request-API.patch

   1 From ccc2fa16de3fef192885831595a168a36bfdd842 Mon Sep 17 00:00:00 2001
   2 From: Dom Cobley <popcornmix@gmail.com>
   3 Date: Tue, 13 Apr 2021 14:10:03 +0100
   4 Subject: [PATCH] drm/vc4: hdmi: Convert to the new clock request API
   5
   6 The new clock request API allows us to increase the rate of the
   7 core clock as required during mode set while decreasing it when
   8 we're done, resulting in a better power-efficiency.
   9
  10 Signed-off-by: Dom Cobley <popcornmix@gmail.com>
  11 ---
  12  drivers/gpu/drm/vc4/vc4_kms.c | 5 +++--
  13  1 file changed, 3 insertions(+), 2 deletions(-)
  14
  15 --- a/drivers/gpu/drm/vc4/vc4_kms.c
  16 +++ b/drivers/gpu/drm/vc4/vc4_kms.c
  17 @@ -313,6 +313,7 @@ vc4_atomic_complete_commit(struct drm_at
  18         struct vc4_hvs *hvs = vc4->hvs;
  19         struct drm_crtc_state *new_crtc_state;
  20         struct drm_crtc *crtc;
  21 +       struct clk_request *core_req;
  22         int i;
  23
  24         for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
  25 @@ -326,7 +327,7 @@ vc4_atomic_complete_commit(struct drm_at
  26         }
  27
  28         if (vc4->hvs && vc4->hvs->hvs5)
  29 -               clk_set_min_rate(hvs->core_clk, 500000000);
  30 +               core_req = clk_request_start(hvs->core_clk, 500000000);
  31
  32         drm_atomic_helper_wait_for_fences(dev, state, false);
  33
  34 @@ -358,7 +359,7 @@ vc4_atomic_complete_commit(struct drm_at
  35         drm_atomic_helper_commit_cleanup_done(state);
  36
  37         if (vc4->hvs && vc4->hvs->hvs5)
  38 -               clk_set_min_rate(hvs->core_clk, 0);
  39 +               clk_request_done(core_req);
  40
  41         drm_atomic_state_put(state);
  42