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From:   Lukasz Luba <lukasz.luba@arm.com>
To:     linux-kernel@vger.kernel.org
Cc:     lukasz.luba@arm.com, dietmar.eggemann@arm.com,
        viresh.kumar@linaro.org, rafael@kernel.org,
        daniel.lezcano@linaro.org, nm@ti.com, sboyd@kernel.org,
        mka@chromium.org, dianders@chromium.org, robh+dt@kernel.org,
        devicetree@vger.kernel.org, linux-pm@vger.kernel.org
Subject: [PATCH v5 3/5] PM: EM: add macro to set .active_power() callback conditionally
Date:   Wed,  2 Mar 2022 11:29:15 +0000
Message-Id: <20220302112917.27270-4-lukasz.luba@arm.com>
In-Reply-To: <20220302112917.27270-1-lukasz.luba@arm.com>
References: <20220302112917.27270-1-lukasz.luba@arm.com>
Precedence: bulk

The Energy Model is able to use new power values coming from DT. Add a new
macro which is helpful in setting the .active_power() callback
conditionally in setup time. The dual-macro implementation handles both
kernel configurations: w/ EM and w/o EM built-in.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
---
 include/linux/energy_model.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/energy_model.h b/include/linux/energy_model.h
index 6377adc3b78d..9f3c400bc52d 100644
--- a/include/linux/energy_model.h
+++ b/include/linux/energy_model.h
@@ -116,6 +116,7 @@ struct em_data_callback {
 			    struct device *dev);
 };
 #define EM_DATA_CB(_active_power_cb) { .active_power = &_active_power_cb }
+#define EM_SET_ACTIVE_POWER_CB(em_cb, cb) ((em_cb).active_power = cb)
 
 struct em_perf_domain *em_cpu_get(int cpu);
 struct em_perf_domain *em_pd_get(struct device *dev);
@@ -264,6 +265,7 @@ static inline int em_pd_nr_perf_states(struct em_perf_domain *pd)
 #else
 struct em_data_callback {};
 #define EM_DATA_CB(_active_power_cb) { }
+#define EM_SET_ACTIVE_POWER_CB(em_cb, cb) do { } while (0)
 
 static inline
 int em_dev_register_perf_domain(struct device *dev, unsigned int nr_states,
-- 
2.17.1