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From: Rajendra Nayak <rnayak@codeaurora.org>
To: andy.gross@linaro.org, robh@kernel.org, viresh.kumar@linaro.org,
	sboyd@kernel.org, ulf.hansson@linaro.org,
	collinsd@codeaurora.org, mka@chromium.org
Cc: devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	linux-kernel@vger.kernel.org, henryc.chen@mediatek.com,
	Rajendra Nayak <rnayak@codeaurora.org>
Subject: [PATCH v9 04/10] soc: qcom: rpmpd: Add support for get/set performance state
Date: Mon,  7 Jan 2019 15:39:53 +0530	[thread overview]
Message-ID: <20190107100959.14528-5-rnayak@codeaurora.org> (raw)
In-Reply-To: <20190107100959.14528-1-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>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
---
 drivers/soc/qcom/rpmpd.c | 44 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/drivers/soc/qcom/rpmpd.c b/drivers/soc/qcom/rpmpd.c
index 7715ba7c9157..1c6c5dec2667 100644
--- a/drivers/soc/qcom/rpmpd.c
+++ b/drivers/soc/qcom/rpmpd.c
@@ -10,6 +10,7 @@
 #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>
@@ -26,6 +27,8 @@
 #define KEY_ENABLE		0x6e657773 /* swen */
 #define KEY_FLOOR_CORNER	0x636676   /* vfc */
 
+#define MAX_RPMPD_STATE		6
+
 #define DEFINE_RPMPD_CORNER_SMPA(_platform, _name, _active, r_id)		\
 	static struct rpmpd _platform##_##_active;			\
 	static struct rpmpd _platform##_##_name = {			\
@@ -218,6 +221,45 @@ 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);
+
+	if (state > MAX_RPMPD_STATE)
+		goto out;
+
+	mutex_lock(&rpmpd_lock);
+
+	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, "opp-level", &corner))
+		pr_err("%s: missing 'opp-level' property\n", __func__);
+
+	of_node_put(np);
+
+	return corner;
+}
+
 static int rpmpd_probe(struct platform_device *pdev)
 {
 	int i;
@@ -258,6 +300,8 @@ 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:[~2019-01-07 10:10 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-07 10:09 [PATCH v9 00/10] Add power domain driver for corners on msm8996/sdm845 Rajendra Nayak
2019-01-07 10:09 ` [PATCH v9 01/10] dt-bindings: opp: Introduce opp-level bindings Rajendra Nayak
2019-01-08  4:49   ` Viresh Kumar
2019-01-07 10:09 ` [PATCH v9 02/10] dt-bindings: power: Add qcom rpm power domain driver bindings Rajendra Nayak
2019-01-07 10:09 ` [PATCH v9 03/10] soc: qcom: rpmpd: Add a Power domain driver to model corners Rajendra Nayak
2019-01-07 10:09 ` Rajendra Nayak [this message]
2019-01-07 10:09 ` [PATCH v9 05/10] arm64: dts: msm8996: Add rpmpd device node Rajendra Nayak
2019-01-07 10:09 ` [PATCH v9 06/10] soc: qcom: rpmhpd: Add RPMh power domain driver Rajendra Nayak
2019-01-07 10:09 ` [PATCH v9 07/10] arm64: dts: sdm845: Add rpmh powercontroller node Rajendra Nayak
2019-01-07 10:09 ` [PATCH v9 08/10] OPP: Add a dev_pm_opp_of_get_level() helper Rajendra Nayak
2019-01-08  4:54   ` Viresh Kumar
2019-01-07 10:09 ` [PATCH v9 09/10] soc: qcom: rpmpd: Use " Rajendra Nayak
2019-01-07 10:09 ` [PATCH v9 10/10] soc: qcom: rpmhpd: Mark mx as a parent for cx Rajendra Nayak

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