According to the tstate calculation in nvkm_clk_tstate(), the range of tstate is from -(clk->state_nr - 1) to 0, it mean the tstate is negative value. But in nvkm_pstate_work(), it use (clk->state_nr - 1 - clk->tstate) to limit pstate, it's not correct. This patch fix it to use (clk->state_nr - 1 + clk->tstate) to limit pstate.
Signed-off-by: Wei Ni <[email protected]> --- v2: create patch based on http://cgit.freedesktop.org/~darktama/nouveau/ drm/nouveau/nvkm/subdev/clk/base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drm/nouveau/nvkm/subdev/clk/base.c b/drm/nouveau/nvkm/subdev/clk/base.c index 39a83d82e0cd..77a0ab5ca3b0 100644 --- a/drm/nouveau/nvkm/subdev/clk/base.c +++ b/drm/nouveau/nvkm/subdev/clk/base.c @@ -214,7 +214,7 @@ nvkm_pstate_work(struct work_struct *work) 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 - clk->tstate); + pstate = min(pstate, clk->state_nr - 1 + clk->tstate); pstate = max(pstate, clk->dstate); } else { pstate = clk->pstate = -1; -- 1.9.1 _______________________________________________ Nouveau mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/nouveau
