target/linux/bcm27xx/patches-5.15/950-0861-Revert-drm-vc4-kms-Move-clock-request-to-our-HVS-sta.patch

   1 From 89941a8e5343c11364f0fcbeb9dec76afa8f4f2e Mon Sep 17 00:00:00 2001
   2 From: Maxime Ripard <maxime@cerno.tech>
   3 Date: Wed, 16 Mar 2022 09:51:32 +0100
   4 Subject: [PATCH] Revert "drm/vc4: kms: Move clock request to our HVS
   5  state"
   6
   7 This reverts commit c65633a429b15f9d182a5bc7d6387fecbd5b7bb0.
   8 ---
   9  drivers/gpu/drm/vc4/vc4_drv.h | 1 +
  10  drivers/gpu/drm/vc4/vc4_kms.c | 8 +++-----
  11  2 files changed, 4 insertions(+), 5 deletions(-)
  12
  13 --- a/drivers/gpu/drm/vc4/vc4_drv.h
  14 +++ b/drivers/gpu/drm/vc4/vc4_drv.h
  15 @@ -326,6 +326,7 @@ 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 @@ -40,7 +40,6 @@ static struct vc4_ctm_state *to_vc4_ctm_
  26  struct vc4_hvs_state {
  27         struct drm_private_state base;
  28         unsigned long core_clock_rate;
  29 -       struct clk_request *core_req;
  30
  31         struct {
  32                 unsigned in_use: 1;
  33 @@ -407,8 +406,7 @@ static void vc4_atomic_commit_tail(struc
  34                  * And remove the previous one based on the HVS
  35                  * requirements if any.
  36                  */
  37 -               clk_request_done(old_hvs_state->core_req);
  38 -               old_hvs_state->core_req = NULL;
  39 +               clk_request_done(hvs->core_req);
  40         }
  41
  42         drm_atomic_helper_commit_modeset_disables(dev, state);
  43 @@ -442,8 +440,8 @@ static void vc4_atomic_commit_tail(struc
  44                  * Request a clock rate based on the current HVS
  45                  * requirements.
  46                  */
  47 -               new_hvs_state->core_req = clk_request_start(hvs->core_clk,
  48 -                                                           new_hvs_state->core_clock_rate);
  49 +               hvs->core_req = clk_request_start(hvs->core_clk,
  50 +                                                 new_hvs_state->core_clock_rate);
  51
  52                 /* And drop the temporary request */
  53                 clk_request_done(core_req);