target/linux/bcm27xx/patches-5.15/950-0862-Revert-drm-vc4-Increase-the-core-clock-based-on-HVS-.patch

   1 From fc4570783b4552459a97dd67e20043eeb87ad09a Mon Sep 17 00:00:00 2001
   2 From: Maxime Ripard <maxime@cerno.tech>
   3 Date: Wed, 16 Mar 2022 09:51:44 +0100
   4 Subject: [PATCH] Revert "drm/vc4: Increase the core clock based on HVS
   5  load"
   6
   7 This reverts commit 02c8543cc6940f8201e9beb601bd56421d911e83.
   8 ---
   9  drivers/gpu/drm/vc4/vc4_drv.h |  1 -
  10  drivers/gpu/drm/vc4/vc4_kms.c | 13 +------------
  11  2 files changed, 1 insertion(+), 13 deletions(-)
  12
  13 --- a/drivers/gpu/drm/vc4/vc4_drv.h
  14 +++ b/drivers/gpu/drm/vc4/vc4_drv.h
  15 @@ -326,7 +326,6 @@ struct vc4_hvs {
  16         u32 __iomem *dlist;
  17
  18         struct clk *core_clk;
  19 -       struct clk_request *core_req;
  20
  21         /* Memory manager for CRTCs to allocate space in the display
  22          * list.  Units are dwords.
  23 --- a/drivers/gpu/drm/vc4/vc4_kms.c
  24 +++ b/drivers/gpu/drm/vc4/vc4_kms.c
  25 @@ -402,11 +402,6 @@ static void vc4_atomic_commit_tail(struc
  26                                                 500000000, state_rate);
  27
  28                 core_req = clk_request_start(hvs->core_clk, core_rate);
  29 -               /*
  30 -                * And remove the previous one based on the HVS
  31 -                * requirements if any.
  32 -                */
  33 -               clk_request_done(hvs->core_req);
  34         }
  35
  36         drm_atomic_helper_commit_modeset_disables(dev, state);
  37 @@ -436,14 +431,8 @@ static void vc4_atomic_commit_tail(struc
  38                 drm_dbg(dev, "Running the core clock at %lu Hz\n",
  39                         new_hvs_state->core_clock_rate);
  40
  41 -               /*
  42 -                * Request a clock rate based on the current HVS
  43 -                * requirements.
  44 -                */
  45 -               hvs->core_req = clk_request_start(hvs->core_clk,
  46 -                                                 new_hvs_state->core_clock_rate);
  47 +               clk_set_min_rate(hvs->core_clk, new_hvs_state->core_clock_rate);
  48
  49 -               /* And drop the temporary request */
  50                 clk_request_done(core_req);
  51
  52                 drm_dbg(dev, "Core clock actual rate: %lu Hz\n",