From patchwork Mon Jul 29 16:02:22 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Rafael J. 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Wysocki" To: Linux PM Cc: Daniel Lezcano , LKML , Lukasz Luba , Thierry Reding , Jonathan Hunter , linux-tegra@vger.kernel.org Subject: [RESEND][PATCH v1 4/8] thermal: tegra: Introduce struct trip_temps for critical and hot trips Date: Mon, 29 Jul 2024 18:02:22 +0200 Message-ID: <9333090.CDJkKcVGEf@rjwysocki.net> In-Reply-To: <2211925.irdbgypaU6@rjwysocki.net> References: <2211925.irdbgypaU6@rjwysocki.net> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CLIENT-IP: 195.136.19.94 X-CLIENT-HOSTNAME: 195.136.19.94 X-VADE-SPAMSTATE: clean X-VADE-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgeeftddrjedvgdellecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfjqffogffrnfdpggftiffpkfenuceurghilhhouhhtmecuudehtdenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujfgurhephffvvefufffkjghfggfgtgesthfuredttddtjeenucfhrhhomhepfdftrghfrggvlhculfdrucghhihsohgtkhhifdcuoehrjhifsehrjhifhihsohgtkhhirdhnvghtqeenucggtffrrghtthgvrhhnpedvffeuiedtgfdvtddugeeujedtffetteegfeekffdvfedttddtuefhgeefvdejhfenucfkphepudelhedrudefiedrudelrdelgeenucevlhhushhtvghrufhiiigvpedunecurfgrrhgrmhepihhnvghtpeduleehrddufeeirdduledrleegpdhhvghlohepkhhrvggrtghhvghrrdhlohgtrghlnhgvthdpmhgrihhlfhhrohhmpedftfgrfhgrvghlucflrdcuhgihshhotghkihdfuceorhhjfiesrhhjfiihshhotghkihdrnhgvtheqpdhnsggprhgtphhtthhopeejpdhrtghpthhtoheplhhinhhugidqphhmsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtohepuggrnhhivghlrdhlvgiitggrnhhosehlihhnrghrohdrohhrghdprhgtphhtthhopehlihhnuhigqdhkvghrnhgvlhesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehluhhkrghsiidrlhhusggrsegrrhhmrdgtohhmpdhrtghpthhtohepthhhihgvrhhrhidrrhgvughinhhgsehgmhgrihhlrdgtohhmpdhrtghpthhtohepjhhonhgrthhhrghnhhesnhhvihguihgrrdgtohhmpdhrtghpthhtoheplhhinhhugidqthgvghhrrgesvhhgvghrrdhkvghrnhgvlhdrohhrgh X-DCC--Metrics: v370.home.net.pl 1024; Body=7 Fuz1=7 Fuz2=7 From: Rafael J. Wysocki Introduce a helper structure, struct trip_temps, for storing the temperatures of the critical and hot trip points. This helps to make the code in tegra_tsensor_get_hw_channel_trips() somewhat cleaner and will be useful subsequently in eliminating iteration over trip indices from the driver. No intentional functional impact. Signed-off-by: Rafael J. Wysocki Reviewed-by: Lukasz Luba --- This patch does not depend on the previous patch(es) in the series. --- drivers/thermal/tegra/tegra30-tsensor.c | 34 ++++++++++++++++++-------------- 1 file changed, 20 insertions(+), 14 deletions(-) Index: linux-pm/drivers/thermal/tegra/tegra30-tsensor.c =================================================================== --- linux-pm.orig/drivers/thermal/tegra/tegra30-tsensor.c +++ linux-pm/drivers/thermal/tegra/tegra30-tsensor.c @@ -303,8 +303,13 @@ stop_channel: return 0; } +struct trip_temps { + int hot_trip; + int crit_trip; +}; + static void tegra_tsensor_get_hw_channel_trips(struct thermal_zone_device *tzd, - int *hot_trip, int *crit_trip) + struct trip_temps *temps) { unsigned int i; @@ -312,8 +317,8 @@ static void tegra_tsensor_get_hw_channel * 90C is the maximal critical temperature of all Tegra30 SoC variants, * use it for the default trip if unspecified in a device-tree. */ - *hot_trip = 85000; - *crit_trip = 90000; + temps->hot_trip = 85000; + temps->crit_trip = 90000; for (i = 0; i < thermal_zone_get_num_trips(tzd); i++) { @@ -322,14 +327,14 @@ static void tegra_tsensor_get_hw_channel thermal_zone_get_trip(tzd, i, &trip); if (trip.type == THERMAL_TRIP_HOT) - *hot_trip = trip.temperature; + temps->hot_trip = trip.temperature; if (trip.type == THERMAL_TRIP_CRITICAL) - *crit_trip = trip.temperature; + temps->crit_trip = trip.temperature; } /* clamp hardware trips to the calibration limits */ - *hot_trip = clamp(*hot_trip, 25000, 90000); + temps->hot_trip = clamp(temps->hot_trip, 25000, 90000); /* * Kernel will perform a normal system shut down if it will @@ -338,7 +343,7 @@ static void tegra_tsensor_get_hw_channel * shut down gracefully before sending signal to the Power * Management controller. */ - *crit_trip = clamp(*crit_trip + 5000, 25000, 90000); + temps->crit_trip = clamp(temps->crit_trip + 5000, 25000, 90000); } static int tegra_tsensor_enable_hw_channel(const struct tegra_tsensor *ts, @@ -346,7 +351,8 @@ static int tegra_tsensor_enable_hw_chann { const struct tegra_tsensor_channel *tsc = &ts->ch[id]; struct thermal_zone_device *tzd = tsc->tzd; - int err, hot_trip = 0, crit_trip = 0; + struct trip_temps temps = { 0 }; + int err; u32 val; if (!tzd) { @@ -357,24 +363,24 @@ static int tegra_tsensor_enable_hw_chann return 0; } - tegra_tsensor_get_hw_channel_trips(tzd, &hot_trip, &crit_trip); + tegra_tsensor_get_hw_channel_trips(tzd, &temps); dev_info_once(ts->dev, "ch%u: PMC emergency shutdown trip set to %dC\n", - id, DIV_ROUND_CLOSEST(crit_trip, 1000)); + id, DIV_ROUND_CLOSEST(temps.crit_trip, 1000)); - hot_trip = tegra_tsensor_temp_to_counter(ts, hot_trip); - crit_trip = tegra_tsensor_temp_to_counter(ts, crit_trip); + temps.hot_trip = tegra_tsensor_temp_to_counter(ts, temps.hot_trip); + temps.crit_trip = tegra_tsensor_temp_to_counter(ts, temps.crit_trip); /* program LEVEL2 counter threshold */ val = readl_relaxed(tsc->regs + TSENSOR_SENSOR0_CONFIG1); val &= ~TSENSOR_SENSOR0_CONFIG1_TH2; - val |= FIELD_PREP(TSENSOR_SENSOR0_CONFIG1_TH2, hot_trip); + val |= FIELD_PREP(TSENSOR_SENSOR0_CONFIG1_TH2, temps.hot_trip); writel_relaxed(val, tsc->regs + TSENSOR_SENSOR0_CONFIG1); /* program LEVEL3 counter threshold */ val = readl_relaxed(tsc->regs + TSENSOR_SENSOR0_CONFIG2); val &= ~TSENSOR_SENSOR0_CONFIG2_TH3; - val |= FIELD_PREP(TSENSOR_SENSOR0_CONFIG2_TH3, crit_trip); + val |= FIELD_PREP(TSENSOR_SENSOR0_CONFIG2_TH3, temps.crit_trip); writel_relaxed(val, tsc->regs + TSENSOR_SENSOR0_CONFIG2); /*