[PATCH v8 10/10] soc: qcom: rpmhpd: Mark mx as a parent for cx
From: Rajendra Nayak <hidden>
Date: 2018-12-21 08:57:23
Also in:
linux-arm-msm, lkml
Subsystem:
arm/qualcomm mailing list, arm/qualcomm support, the rest · Maintainers:
Bjorn Andersson, Konrad Dybcio, Linus Torvalds
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. Signed-off-by: Rajendra Nayak <redacted> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Stephen Boyd <redacted> --- drivers/soc/qcom/rpmhpd.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/drivers/soc/qcom/rpmhpd.c b/drivers/soc/qcom/rpmhpd.c
index f7fbe57f31ae..71d693c31e3b 100644
--- a/drivers/soc/qcom/rpmhpd.c
+++ b/drivers/soc/qcom/rpmhpd.c@@ -97,12 +97,14 @@ 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", };
@@ -372,6 +374,15 @@ 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); }
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