Commit 2efd3908 authored by Alexandre Courbot's avatar Alexandre Courbot Committed by Ben Skeggs
Browse files

drm/nouveau/clk/gk20a: split gk20a_clk_new()



This allows to instanciate drivers that use the same logic as gk20a with
different parameters.

Add a constructor function to allow other chips that inherit from this
clock to easily initialize its members

Signed-off-by: default avatarAlexandre Courbot <acourbot@nvidia.com>
Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 195c1137
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+31 −12
Original line number Diff line number Diff line
@@ -671,29 +671,48 @@ gk20a_clk = {
};

int
gk20a_clk_new(struct nvkm_device *device, int index, struct nvkm_clk **pclk)
_gk20a_clk_ctor(struct nvkm_device *device, int index,
		const struct nvkm_clk_func *func,
		const struct gk20a_clk_pllg_params *params,
		struct gk20a_clk *clk)
{
	struct nvkm_device_tegra *tdev = device->func->tegra(device);
	struct gk20a_clk *clk;
	int ret, i;

	if (!(clk = kzalloc(sizeof(*clk), GFP_KERNEL)))
		return -ENOMEM;
	*pclk = &clk->base;
	int ret;
	int i;

	/* Finish initializing the pstates */
	for (i = 0; i < ARRAY_SIZE(gk20a_pstates); i++) {
		INIT_LIST_HEAD(&gk20a_pstates[i].list);
		gk20a_pstates[i].pstate = i + 1;
	for (i = 0; i < func->nr_pstates; i++) {
		INIT_LIST_HEAD(&func->pstates[i].list);
		func->pstates[i].pstate = i + 1;
	}

	clk->params = &gk20a_pllg_params;
	clk->params = params;
	clk->parent_rate = clk_get_rate(tdev->clk);

	ret = nvkm_clk_ctor(&gk20a_clk, device, index, true, &clk->base);
	ret = nvkm_clk_ctor(func, device, index, true, &clk->base);
	if (ret)
		return ret;

	nvkm_debug(&clk->base.subdev, "parent clock rate: %d Khz\n",
		   clk->parent_rate / KHZ);

	return 0;
}

int
gk20a_clk_new(struct nvkm_device *device, int index, struct nvkm_clk **pclk)
{
	struct gk20a_clk *clk;
	int ret;

	clk = kzalloc(sizeof(*clk), GFP_KERNEL);
	if (!clk)
		return -ENOMEM;
	*pclk = &clk->base;

	ret = _gk20a_clk_ctor(device, index, &gk20a_clk, &gk20a_pllg_params,
			      clk);

	clk->pl_to_div = pl_to_div;
	clk->div_to_pl = div_to_pl;