[Nouveau] [PATCH 2/9] clk: Remove dstate

[Ilia Mirkin]

On Sun, Mar 5, 2017 at 11:35 AM, Karol Herbst <karolherbst at gmail.com> wrote:
> We won't need it now, because we will adjust the clocks depending on engine
> loads later on anyway or a static lockup table. It also simplifies the

Presumably "lookup"?

> clocking logic.
>
> This code was nowhere used anyway and just a mock up.
>
> Signed-off-by: Karol Herbst <karolherbst at gmail.com>
> Reviewed-by: Martin Peres <martin.peres at free.fr>
> ---
>  drm/nouveau/include/nvkm/subdev/clk.h |  2 --
>  drm/nouveau/nvkm/subdev/clk/base.c    | 16 ++--------------
>  2 files changed, 2 insertions(+), 16 deletions(-)
>
> diff --git a/drm/nouveau/include/nvkm/subdev/clk.h b/drm/nouveau/include/nvkm/subdev/clk.h
> index b2c94cd5..69942b14 100644
> --- a/drm/nouveau/include/nvkm/subdev/clk.h
> +++ b/drm/nouveau/include/nvkm/subdev/clk.h
> @@ -99,7 +99,6 @@ struct nvkm_clk {
>         int ustate_ac; /* user-requested (-1 disabled, -2 perfmon) */
>         int ustate_dc; /* user-requested (-1 disabled, -2 perfmon) */
>         int astate; /* perfmon adjustment (base) */
> -       int dstate; /* display adjustment (min+) */
>         u8  temp;
>
>         bool allow_reclock;
> @@ -121,7 +120,6 @@ struct nvkm_clk {
>  int nvkm_clk_read(struct nvkm_clk *, enum nv_clk_src);
>  int nvkm_clk_ustate(struct nvkm_clk *, int req, int pwr);
>  int nvkm_clk_astate(struct nvkm_clk *, int req, int rel, bool wait);
> -int nvkm_clk_dstate(struct nvkm_clk *, int req, int rel);
>  int nvkm_clk_tstate(struct nvkm_clk *, u8 temperature);
>  int nvkm_clk_update(struct nvkm_clk *clk, bool wait);
>
> diff --git a/drm/nouveau/nvkm/subdev/clk/base.c b/drm/nouveau/nvkm/subdev/clk/base.c
> index ecff3ff3..07d530ed 100644
> --- a/drm/nouveau/nvkm/subdev/clk/base.c
> +++ b/drm/nouveau/nvkm/subdev/clk/base.c
> @@ -306,15 +306,14 @@ nvkm_clk_update_work(struct work_struct *work)
>                 return;
>         clk->pwrsrc = power_supply_is_system_supplied();
>
> -       nvkm_trace(subdev, "P %d PWR %d U(AC) %d U(DC) %d A %d T %d°C D %d\n",
> +       nvkm_trace(subdev, "P %d PWR %d U(AC) %d U(DC) %d A %d T %d°C\n",
>                    clk->pstate, clk->pwrsrc, clk->ustate_ac, clk->ustate_dc,
> -                  clk->astate, clk->temp, clk->dstate);
> +                  clk->astate, clk->temp);
>
>         pstate = clk->pwrsrc ? clk->ustate_ac : clk->ustate_dc;
>         if (clk->state_nr && pstate != -1) {
>                 pstate = (pstate < 0) ? clk->astate : pstate;
>                 pstate = min(pstate, clk->state_nr - 1);
> -               pstate = max(pstate, clk->dstate);
>         } else {
>                 pstate = clk->pstate = -1;
>         }
> @@ -554,16 +553,6 @@ nvkm_clk_tstate(struct nvkm_clk *clk, u8 temp)
>         return nvkm_clk_update(clk, false);
>  }
>
> -int
> -nvkm_clk_dstate(struct nvkm_clk *clk, int req, int rel)
> -{
> -       if (!rel) clk->dstate  = req;
> -       if ( rel) clk->dstate += rel;
> -       clk->dstate = min(clk->dstate, clk->state_nr - 1);
> -       clk->dstate = max(clk->dstate, 0);
> -       return nvkm_clk_update(clk, true);
> -}
> -
>  static int
>  nvkm_clk_pwrsrc(struct nvkm_notify *notify)
>  {
> @@ -621,7 +610,6 @@ nvkm_clk_init(struct nvkm_subdev *subdev)
>                 return clk->func->init(clk);
>
>         clk->astate = clk->state_nr - 1;
> -       clk->dstate = 0;
>         clk->pstate = -1;
>         clk->temp = 90; /* reasonable default value */
>         nvkm_clk_update(clk, true);
> --
> 2.12.0
>
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