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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, collinsd@codeaurora.org,
	Rajendra Nayak <rnayak@codeaurora.org>
Subject: [PATCH v2 3/6] soc: qcom: rpmpd: Add support for get/set performance state
Date: Fri, 25 May 2018 15:31:18 +0530	[thread overview]
Message-ID: <20180525100121.28214-4-rnayak@codeaurora.org> (raw)
In-Reply-To: <20180525100121.28214-1-rnayak@codeaurora.org>

Add support for the .set_performace_state() and .opp_to_performance_state()
callbacks in the rpmpd driver.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/soc/qcom/rpmpd.c | 46 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/drivers/soc/qcom/rpmpd.c b/drivers/soc/qcom/rpmpd.c
index df6427d43414..ff3d910f388c 100644
--- a/drivers/soc/qcom/rpmpd.c
+++ b/drivers/soc/qcom/rpmpd.c
@@ -14,6 +14,7 @@
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
+#include <linux/pm_opp.h>
 #include <linux/soc/qcom/smd-rpm.h>
 
 #include <dt-bindings/mfd/qcom-rpm.h>
@@ -29,6 +30,8 @@
 #define KEY_ENABLE		0x6e657773 /* swen */
 #define KEY_FLOOR_CORNER	0x636676   /* vfc */
 
+#define MAX_RPMPD_STATE		6
+
 #define DEFINE_RPMPD_CORN_SMPA(_platform, _name, _active, r_id)		\
 	static struct rpmpd _platform##_##_active;			\
 	static struct rpmpd _platform##_##_name = {			\
@@ -222,6 +225,47 @@ static int rpmpd_power_off(struct generic_pm_domain *domain)
 	return ret;
 }
 
+static int rpmpd_set_performance(struct generic_pm_domain *domain,
+			     unsigned int state)
+{
+	int ret = 0;
+	struct rpmpd *pd = domain_to_rpmpd(domain);
+
+	mutex_lock(&rpmpd_lock);
+
+	if (state > MAX_RPMPD_STATE)
+		goto out;
+
+	pd->corner = state;
+
+	if (!pd->enabled && (pd->key != KEY_FLOOR_CORNER))
+		goto out;
+
+	ret = rpmpd_aggregate_corner(pd);
+
+out:
+	mutex_unlock(&rpmpd_lock);
+
+	return ret;
+}
+
+static unsigned int rpmpd_get_performance(struct generic_pm_domain *genpd,
+					  struct dev_pm_opp *opp)
+{
+	struct device_node *np;
+	unsigned int corner = 0;
+
+	np = dev_pm_opp_get_of_node(opp);
+	if (of_property_read_u32(np, "qcom,level", &corner)) {
+		pr_err("%s: missing 'qcom,level' property\n", __func__);
+		return 0;
+	}
+
+	of_node_put(np);
+
+	return corner;
+}
+
 static int rpmpd_probe(struct platform_device *pdev)
 {
 	int i;
@@ -259,6 +303,8 @@ static int rpmpd_probe(struct platform_device *pdev)
 		rpmpds[i]->rpm = rpm;
 		rpmpds[i]->pd.power_off = rpmpd_power_off;
 		rpmpds[i]->pd.power_on = rpmpd_power_on;
+		rpmpds[i]->pd.set_performance_state = rpmpd_set_performance;
+		rpmpds[i]->pd.opp_to_performance_state = rpmpd_get_performance;
 		pm_genpd_init(&rpmpds[i]->pd, NULL, true);
 
 		data->domains[i] = &rpmpds[i]->pd;
-- 
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:[~2018-05-25 10:01 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-25 10:01 [PATCH v2 0/6] Add powerdomain driver for corners on msm8996/sdm845 Rajendra Nayak
2018-05-25 10:01 ` [PATCH v2 1/6] soc: qcom: rpmpd: Add a powerdomain driver to model corners Rajendra Nayak
2018-05-30  9:17   ` Ulf Hansson
2018-05-30 10:14     ` Rajendra Nayak
2018-05-30 12:44       ` Ulf Hansson
2018-05-31  4:20         ` Rajendra Nayak
2018-05-31 11:09           ` Ulf Hansson
2018-05-30 18:27       ` David Collins
2018-05-31  3:53         ` Rajendra Nayak
2018-05-31  3:27   ` Rob Herring
2018-05-31  4:14     ` Rajendra Nayak
2018-05-25 10:01 ` [PATCH v2 2/6] dt-bindings: opp: Introduce qcom-opp bindings Rajendra Nayak
2018-05-25 22:33   ` David Collins
2018-05-29  9:49     ` Rajendra Nayak
2018-05-25 10:01 ` Rajendra Nayak [this message]
2018-05-25 10:01 ` [PATCH v2 4/6] arm64: dts: msm8996: Add rpmpd device node Rajendra Nayak
2018-05-25 10:01 ` [PATCH v2 5/6] soc: qcom: rpmh powerdomain driver Rajendra Nayak
2018-05-26  1:08   ` David Collins
2018-05-29 10:19     ` Rajendra Nayak
2018-05-29 19:03       ` David Collins
2018-05-30  8:55       ` Rajendra Nayak
2018-05-30  9:44         ` Viresh Kumar
2018-05-30 10:07           ` Rajendra Nayak
2018-06-01  8:48     ` Rajendra Nayak
2018-06-01 19:19       ` David Collins
2018-06-13 18:29     ` Lina Iyer
2018-05-31  3:31   ` Rob Herring
2018-05-31  4:15     ` Rajendra Nayak
2018-05-25 10:01 ` [PATCH v2 6/6] soc: qcom: rpmpd/rpmhpd: Add a max vote on all corners at init Rajendra Nayak

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