Commit 0503aec2 authored Jan 10, 2019 by Rajendra Nayak Committed by Andy Gross Jan 22, 2019

soc: qcom: rpmhpd: Mark mx as a parent for cx



Specify the active + sleep and active-only MX power domains as
the parents of the corresponding CX power domains. This will ensure that
performance state requests on CX automatically generate equivalent requests
on MX power domains.

This is used to enforce a requirement that exists for various
hardware blocks on SDM845 that MX performance state >= CX performance
state for a given operating frequency.

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>

parent 279b7e8a

drivers/soc/qcom/rpmhpd.c

+11 −0

Original line number	Diff line number	Diff line
		@@ -101,12 +101,14 @@ static struct rpmhpd sdm845_cx_ao;
		static struct rpmhpd sdm845_cx = {
		.pd = { .name = "cx", },
		.peer = &sdm845_cx_ao,
		.parent = &sdm845_mx.pd,
		.res_name = "cx.lvl",
		};

		static struct rpmhpd sdm845_cx_ao = {
		.pd = { .name = "cx_ao", },
		.peer = &sdm845_cx,
		.parent = &sdm845_mx_ao.pd,
		.res_name = "cx.lvl",
		};

		@@ -376,6 +378,15 @@ static int rpmhpd_probe(struct platform_device *pdev)
		data->domains[i] = &rpmhpds[i]->pd;
		}

		/* Add subdomains */
		for (i = 0; i < num_pds; i++) {
		if (!rpmhpds[i])
		continue;
		if (rpmhpds[i]->parent)
		pm_genpd_add_subdomain(rpmhpds[i]->parent,
		&rpmhpds[i]->pd);
		}

		return of_genpd_add_provider_onecell(pdev->dev.of_node, data);
		}