linux-kernel - [PATCH 4/9] OPP: Extend dev_pm_opp

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Message-Id: <20230925131715.138411-5-ulf.hansson@linaro.org>
Date:   Mon, 25 Sep 2023 15:17:10 +0200
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Sudeep Holla <sudeep.holla@....com>,
        Cristian Marussi <cristian.marussi@....com>,
        Viresh Kumar <vireshk@...nel.org>,
        "Rafael J . Wysocki" <rafael@...nel.org>
Cc:     Nishanth Menon <nm@...com>, Stephen Boyd <sboyd@...nel.org>,
        Nikunj Kela <nkela@...cinc.com>,
        Prasad Sodagudi <psodagud@...cinc.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Ulf Hansson <ulf.hansson@...aro.org>, linux-pm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 4/9] OPP: Extend dev_pm_opp_data with a level

Let's extend the dev_pm_opp_data with a level variable, to allow users to
specify a corresponding level (performance state) for a dynamically added
OPP.

Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
---
 drivers/opp/core.c     | 1 +
 include/linux/pm_opp.h | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 54b6138e1189..ca8d1304b508 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -2035,6 +2035,7 @@ int _opp_add_v1(struct opp_table *opp_table, struct device *dev,
 
 	/* populate the opp table */
 	new_opp->rates[0] = data->freq;
+	new_opp->level = data->level;
 	tol = u_volt * opp_table->voltage_tolerance_v1 / 100;
 	new_opp->supplies[0].u_volt = u_volt;
 	new_opp->supplies[0].u_volt_min = u_volt - tol;
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index a8ee93ba41d8..9ad168f4cbf1 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -94,10 +94,12 @@ struct dev_pm_opp_config {
 
 /**
  * struct dev_pm_opp_data - The data to use to initialize an OPP.
+ * @level: The performance level for the OPP.
  * @freq: The clock rate in Hz for the OPP.
  * @u_volt: The voltage in uV for the OPP.
  */
 struct dev_pm_opp_data {
+	unsigned int level;
 	unsigned long freq;
 	unsigned long u_volt;
 };
-- 
2.34.1