[Nouveau] [RFC PATCH 05/29] clk: Remove dstate

[Pierre Moreau]

This patch could be applied before patch 04, that way patch 04 does not need to
update a function (`nvkm_clk_dstate()`) that will be removed in the next patch.

Reviewed-by: Pierre Moreau <pierre.morrow at free.fr>

On 2017-09-15 — 17:11, Karol Herbst wrote:
> We won't need it now, because we will adjust the clocks depending on engine
> loads later on anyway or a static lookup table. It also simplifies the
> clocking logic.
> 
> This code was nowhere used anyway and just a mock up.
> 
> v2: fixed typo in commit message
> 
> 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 ce3bbcfe..1340f5b8 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 *, 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);
> -- 
> 2.14.1
> 
> _______________________________________________
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> Nouveau at lists.freedesktop.org
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