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[71.163.245.5]) by smtp.googlemail.com with ESMTPSA id g45sm21370801qtb.60.2020.09.16.20.22.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Sep 2020 20:22:30 -0700 (PDT) From: Thara Gopinath To: rui.zhang@intel.com, daniel.lezcano@linaro.org, robh+dt@kernel.org, agross@kernel.org, bjorn.andersson@linaro.org Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, lukasz.luba@arm.com, amitk@kernel.org Subject: [PATCH RFC 3/8] thermal: thermal_of: Extend thermal dt driver to support bi-directional monitoring of a thermal trip point. Date: Wed, 16 Sep 2020 23:22:21 -0400 Message-Id: <20200917032226.820371-4-thara.gopinath@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200917032226.820371-1-thara.gopinath@linaro.org> References: <20200917032226.820371-1-thara.gopinath@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Introduce of_thermal_get_trip_monitor_type to return the direction of monitoring of a thermal trip point. Also translate the DT information regarding trip point monitor direction into the thermal framework. Signed-off-by: Thara Gopinath --- drivers/thermal/thermal_of.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c index 69ef12f852b7..5bc7f5bab772 100644 --- a/drivers/thermal/thermal_of.c +++ b/drivers/thermal/thermal_of.c @@ -328,6 +328,20 @@ static int of_thermal_get_trip_hyst(struct thermal_zone_device *tz, int trip, return 0; } +static int of_thermal_get_trip_monitor_type + (struct thermal_zone_device *tz, int trip, + enum thermal_trip_monitor_type *type) +{ + struct __thermal_zone *data = tz->devdata; + + if (trip >= data->ntrips || trip < 0) + return -EDOM; + + *type = data->trips[trip].monitor_type; + + return 0; +} + static int of_thermal_set_trip_hyst(struct thermal_zone_device *tz, int trip, int hyst) { @@ -363,6 +377,7 @@ static struct thermal_zone_device_ops of_thermal_ops = { .set_trip_temp = of_thermal_set_trip_temp, .get_trip_hyst = of_thermal_get_trip_hyst, .set_trip_hyst = of_thermal_set_trip_hyst, + .get_trip_mon_type = of_thermal_get_trip_monitor_type, .get_crit_temp = of_thermal_get_crit_temp, .bind = of_thermal_bind, @@ -801,6 +816,7 @@ static int thermal_of_populate_trip(struct device_node *np, { int prop; int ret; + bool is_monitor_falling; ret = of_property_read_u32(np, "temperature", &prop); if (ret < 0) { @@ -822,6 +838,12 @@ static int thermal_of_populate_trip(struct device_node *np, return ret; } + ret = of_property_read_bool(np, "monitor-falling"); + if (is_monitor_falling) + trip->monitor_type = THERMAL_TRIP_MONITOR_FALLING; + else + trip->monitor_type = THERMAL_TRIP_MONITOR_RISING; + /* Required for cooling map matching */ trip->np = np; of_node_get(np);