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drm/nouveau/clk/gk20a: set lowest frequency during init()

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Err on the safe side by setting the lowest frequency (and thus voltage)
during device init.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Alexandre Courbot 2016-02-12 16:59:16 +09:00 committed by Ben Skeggs
parent 2efd390851
commit 6871b34a04
1 changed files with 5 additions and 2 deletions
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7
drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk20a.c
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@ -642,9 +642,12 @@ gk20a_clk_init(struct nvkm_clk *base)
struct nvkm_device *device = subdev->device;
int ret;
nvkm_mask(device, GPC2CLK_OUT, GPC2CLK_OUT_INIT_MASK, GPC2CLK_OUT_INIT_VAL);
nvkm_mask(device, GPC2CLK_OUT, GPC2CLK_OUT_INIT_MASK,
GPC2CLK_OUT_INIT_VAL);
ret = gk20a_clk_prog(&clk->base);
/* Start with lowest frequency */
base->func->calc(base, &base->func->pstates[0].base);
ret = base->func->prog(&clk->base);
if (ret) {
nvkm_error(subdev, "cannot initialize clock\n");
return ret;