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From: Rajendra Nayak <rnayak@codeaurora.org>
To: viresh.kumar@linaro.org, sboyd@kernel.org, andy.gross@linaro.org,
	ulf.hansson@linaro.org
Cc: devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Rajendra Nayak <rnayak@codeaurora.org>
Subject: [PATCH 7/7] soc: qcom: rpmpd: Add a max vote on all corners at init
Date: Fri, 16 Mar 2018 09:38:24 +0530	[thread overview]
Message-ID: <20180316040824.21472-8-rnayak@codeaurora.org> (raw)
In-Reply-To: <20180316040824.21472-1-rnayak@codeaurora.org>

As we move from no clients/consumers in kernel voting on corners,
to *some* voting and some not voting, we might end up in a situation
where the clients which remove votes can adversly impact others
who still don't have a way to vote.

To avoid this situation, have a max vote on all corners at init.
This should/can be removed once we have all clients moved to
be able to vote/unvote for themselves.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
---
 drivers/soc/qcom/rpmpd.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/soc/qcom/rpmpd.c b/drivers/soc/qcom/rpmpd.c
index 4058c5b450c6..ebdcf9398441 100644
--- a/drivers/soc/qcom/rpmpd.c
+++ b/drivers/soc/qcom/rpmpd.c
@@ -304,6 +304,15 @@ static int rpmpd_probe(struct platform_device *pdev)
 		pm_genpd_init(&rpmpds[i]->pd, NULL, true);
 
 		data->domains[i] = &rpmpds[i]->pd;
+
+		/*
+		 * Until we have all consumers voting on corners
+		 * just vote the max corner on all PDs
+		 * This should ideally be *removed* once we have
+		 * all (most) consumers being able to vote
+		 */
+		rpmpd_set_performance(&rpmpds[i]->pd, MAX_RPMPD_STATE);
+		rpmpd_power_on(&rpmpds[i]->pd);
 	}
 
 	return of_genpd_add_provider_onecell(pdev->dev.of_node, data);
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

  parent reply	other threads:[~2018-03-16  4:09 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-16  4:08 [PATCH 0/7] Add powerdomain driver for corners on msm8996 Rajendra Nayak
2018-03-16  4:08 ` [PATCH 1/7] PM / OPP: Add dev_pm_opp_get_of_node() Rajendra Nayak
2018-04-07 13:00   ` Stephen Boyd
2018-04-09  3:22     ` Viresh Kumar
2018-04-09 15:17     ` Jordan Crouse
2018-03-16  4:08 ` [PATCH 2/7] soc: qcom: rpmpd: Add a powerdomain driver to model corners Rajendra Nayak
2018-03-18 12:52   ` Rob Herring
2018-03-16  4:08 ` [PATCH 3/7] dt-bindings: opp: Introduce qcom-opp bindings Rajendra Nayak
2018-03-16  4:33   ` Viresh Kumar
2018-03-26 22:22   ` Rob Herring
2018-04-07 13:05   ` Stephen Boyd
2018-03-16  4:08 ` [PATCH 4/7] soc: qcom: rpmpd: Add support for get/set performance state Rajendra Nayak
2018-03-16  4:35   ` Viresh Kumar
2018-03-16  5:52     ` Rajendra Nayak
2018-03-16  4:08 ` [PATCH 5/7] arm64: dts: msm8996: Add rpmpd device node Rajendra Nayak
2018-03-16  4:38   ` Viresh Kumar
2018-04-09 16:03   ` Stephen Boyd
2018-04-10  3:40     ` Viresh Kumar
2018-04-10  4:19     ` Rajendra Nayak
2018-03-16  4:08 ` [PATCH 6/7] mmc: sdhci-msm: Adapt the driver to use OPPs to set clocks/performance state Rajendra Nayak
2018-03-16  4:41   ` Viresh Kumar
2018-03-16  4:08 ` Rajendra Nayak [this message]
2018-03-16  4:41   ` [PATCH 7/7] soc: qcom: rpmpd: Add a max vote on all corners at init Viresh Kumar

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