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

Karol Herbst
2017-09-15T17:11:05Z

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