From: Dmitry Osipenko <digetx@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Mark Brown <broonie@kernel.org>,
Liam Girdwood <lgirdwood@gmail.com>,
Ulf Hansson <ulf.hansson@linaro.org>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Peter Geis <pgwipeout@gmail.com>,
Nicolas Chauvet <kwizart@gmail.com>,
Krzysztof Kozlowski <krzk@kernel.org>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Kevin Hilman <khilman@kernel.org>,
Peter De Schrijver <pdeschrijver@nvidia.com>,
Viresh Kumar <vireshk@kernel.org>,
Stephen Boyd <sboyd@kernel.org>,
Michael Turquette <mturquette@baylibre.com>
Cc: devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org,
linux-media@vger.kernel.org, linux-tegra@vger.kernel.org,
linux-clk@vger.kernel.org
Subject: [PATCH v2 11/48] opp: Add dev_pm_opp_find_level_ceil()
Date: Thu, 17 Dec 2020 21:06:01 +0300 [thread overview]
Message-ID: <20201217180638.22748-12-digetx@gmail.com> (raw)
In-Reply-To: <20201217180638.22748-1-digetx@gmail.com>
Add a ceil version of the dev_pm_opp_find_level(). It's handy to have if
levels don't start from 0 in OPP table and zero usually means a minimal
level.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
drivers/opp/core.c | 49 ++++++++++++++++++++++++++++++++++++++++++
include/linux/pm_opp.h | 8 +++++++
2 files changed, 57 insertions(+)
diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index eab37b3a27bb..0783a4ac819a 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -449,6 +449,55 @@ struct dev_pm_opp *dev_pm_opp_find_level_exact(struct device *dev,
}
EXPORT_SYMBOL_GPL(dev_pm_opp_find_level_exact);
+/**
+ * dev_pm_opp_find_level_ceil() - search for an rounded up level
+ * @dev: device for which we do this operation
+ * @level: level to search for
+ *
+ * Return: Searches for rounded up match in the opp table and returns pointer
+ * to the matching opp if found, else returns ERR_PTR in case of error and
+ * should be handled using IS_ERR. Error return values can be:
+ * EINVAL: for bad pointer
+ * ERANGE: no match found for search
+ * ENODEV: if device not found in list of registered devices
+ *
+ * The callers are required to call dev_pm_opp_put() for the returned OPP after
+ * use.
+ */
+struct dev_pm_opp *dev_pm_opp_find_level_ceil(struct device *dev,
+ unsigned int *level)
+{
+ struct opp_table *opp_table;
+ struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE);
+
+ opp_table = _find_opp_table(dev);
+ if (IS_ERR(opp_table)) {
+ int r = PTR_ERR(opp_table);
+
+ dev_err(dev, "%s: OPP table not found (%d)\n", __func__, r);
+ return ERR_PTR(r);
+ }
+
+ mutex_lock(&opp_table->lock);
+
+ list_for_each_entry(temp_opp, &opp_table->opp_list, node) {
+ if (temp_opp->available && temp_opp->level >= *level) {
+ opp = temp_opp;
+ *level = opp->level;
+
+ /* Increment the reference count of OPP */
+ dev_pm_opp_get(opp);
+ break;
+ }
+ }
+
+ mutex_unlock(&opp_table->lock);
+ dev_pm_opp_put_opp_table(opp_table);
+
+ return opp;
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_find_level_ceil);
+
static noinline struct dev_pm_opp *_find_freq_ceil(struct opp_table *opp_table,
unsigned long *freq)
{
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index f311a8b2ca04..a17d92d923cc 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -111,6 +111,8 @@ struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
bool available);
struct dev_pm_opp *dev_pm_opp_find_level_exact(struct device *dev,
unsigned int level);
+struct dev_pm_opp *dev_pm_opp_find_level_ceil(struct device *dev,
+ unsigned int *level);
struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
unsigned long *freq);
@@ -228,6 +230,12 @@ static inline struct dev_pm_opp *dev_pm_opp_find_level_exact(struct device *dev,
return ERR_PTR(-ENOTSUPP);
}
+static inline struct dev_pm_opp *dev_pm_opp_find_level_ceil(struct device *dev,
+ unsigned int *level)
+{
+ return ERR_PTR(-ENOTSUPP);
+}
+
static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
unsigned long *freq)
{
--
2.29.2
next prev parent reply other threads:[~2020-12-17 18:13 UTC|newest]
Thread overview: 127+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-17 18:05 [PATCH v2 00/48] Introduce core voltage scaling for NVIDIA Tegra20/30 SoCs Dmitry Osipenko
2020-12-17 18:05 ` [PATCH v2 01/48] dt-bindings: memory: tegra20: emc: Replace core regulator with power domain Dmitry Osipenko
2020-12-21 22:53 ` Rob Herring
2020-12-17 18:05 ` [PATCH v2 02/48] dt-bindings: memory: tegra30: " Dmitry Osipenko
2020-12-21 22:54 ` Rob Herring
2020-12-22 19:16 ` Dmitry Osipenko
2020-12-17 18:05 ` [PATCH v2 03/48] dt-bindings: memory: tegra124: " Dmitry Osipenko
2020-12-17 18:05 ` [PATCH v2 04/48] dt-bindings: host1x: Document OPP and power domain properties Dmitry Osipenko
2020-12-22 0:09 ` Rob Herring
2020-12-17 18:05 ` [PATCH v2 05/48] media: dt: bindings: tegra-vde: " Dmitry Osipenko
2020-12-22 0:09 ` Rob Herring
2020-12-17 18:05 ` [PATCH v2 06/48] dt-bindings: clock: tegra: Document clocks sub-node Dmitry Osipenko
2020-12-22 0:14 ` Rob Herring
2020-12-22 19:16 ` Dmitry Osipenko
2020-12-17 18:05 ` [PATCH v2 07/48] dt-bindings: arm: tegra: Add binding for core power domain Dmitry Osipenko
2020-12-19 10:57 ` Krzysztof Kozlowski
2020-12-20 18:26 ` Dmitry Osipenko
2020-12-17 18:05 ` [PATCH v2 08/48] regulator: Make regulator_sync_voltage() usable by coupled regulators Dmitry Osipenko
2020-12-17 18:05 ` [PATCH v2 09/48] opp: Add dev_pm_opp_sync_regulators() Dmitry Osipenko
2020-12-22 6:41 ` Viresh Kumar
2020-12-17 18:06 ` [PATCH v2 10/48] opp: Add dev_pm_opp_set_voltage() Dmitry Osipenko
2020-12-22 6:41 ` Viresh Kumar
2020-12-17 18:06 ` Dmitry Osipenko [this message]
2020-12-22 6:42 ` [PATCH v2 11/48] opp: Add dev_pm_opp_find_level_ceil() Viresh Kumar
2020-12-22 19:15 ` Dmitry Osipenko
2020-12-23 4:19 ` Viresh Kumar
2020-12-23 20:37 ` Dmitry Osipenko
2020-12-24 6:43 ` Viresh Kumar
2020-12-24 13:00 ` Dmitry Osipenko
2020-12-28 6:22 ` Viresh Kumar
2020-12-28 14:03 ` Dmitry Osipenko
2020-12-30 4:46 ` Viresh Kumar
2020-12-30 14:02 ` Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 12/48] opp: Add dev_pm_opp_get_required_pstate() Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 13/48] opp: Add resource-managed versions of OPP API functions Dmitry Osipenko
2020-12-22 8:55 ` Viresh Kumar
2020-12-22 19:14 ` Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 14/48] opp: Filter out OPPs based on availability of a required-OPP Dmitry Osipenko
2020-12-22 8:59 ` Viresh Kumar
2020-12-22 19:17 ` Dmitry Osipenko
2020-12-23 4:22 ` Viresh Kumar
2020-12-23 20:48 ` Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 15/48] opp: Support set_opp() customization without requiring to use regulators Dmitry Osipenko
2020-12-22 9:01 ` Viresh Kumar
2020-12-22 19:18 ` Dmitry Osipenko
2020-12-23 6:01 ` Viresh Kumar
2020-12-23 20:38 ` Dmitry Osipenko
2020-12-24 4:10 ` Viresh Kumar
2020-12-24 12:16 ` Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 16/48] opp: Handle missing OPP table in dev_pm_opp_xlate_performance_state() Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 17/48] opp: Correct debug message in _opp_add_static_v2() Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 18/48] opp: Print OPP level in debug message of _opp_add_static_v2() Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 19/48] opp: Fix adding OPP entries in a wrong order if rate is unavailable Dmitry Osipenko
2020-12-22 9:12 ` Viresh Kumar
2020-12-22 19:19 ` Dmitry Osipenko
2020-12-23 4:34 ` Viresh Kumar
2020-12-23 20:36 ` Dmitry Osipenko
2020-12-24 6:28 ` Viresh Kumar
2020-12-24 12:14 ` Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 20/48] PM: domains: Make set_performance_state() callback optional Dmitry Osipenko
2021-01-11 9:10 ` Ulf Hansson
2020-12-17 18:06 ` [PATCH v2 21/48] PM: domains: Add "performance" column to debug summary Dmitry Osipenko
2021-01-11 9:13 ` Ulf Hansson
2021-01-11 11:28 ` Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 22/48] soc/tegra: pmc: Fix imbalanced clock disabling in error code path Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 23/48] soc/tegra: pmc: Pulse resets after removing power clamp Dmitry Osipenko
2020-12-30 14:56 ` Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 24/48] soc/tegra: pmc: Ensure that clock rates aren't too high Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 25/48] soc/tegra: pmc: Print out domain name when reset fails to acquire Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 26/48] soc/tegra: Add devm_tegra_core_dev_init_opp_table() Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 27/48] soc/tegra: Add CONFIG_SOC_TEGRA_COMMON and select PM_OPP by default Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 28/48] soc/tegra: Introduce core power domain driver Dmitry Osipenko
2020-12-22 6:40 ` Viresh Kumar
2020-12-22 19:21 ` Dmitry Osipenko
2020-12-22 19:39 ` Dmitry Osipenko
2020-12-23 5:57 ` Viresh Kumar
2020-12-23 20:37 ` Dmitry Osipenko
2020-12-23 20:59 ` Dmitry Osipenko
2020-12-24 6:51 ` Viresh Kumar
2020-12-24 12:14 ` Dmitry Osipenko
2021-01-12 13:57 ` Ulf Hansson
2020-12-17 18:06 ` [PATCH v2 29/48] soc/tegra: pmc: Link domains to the parent Core domain Dmitry Osipenko
2021-01-12 13:30 ` Ulf Hansson
2021-01-12 16:22 ` Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 30/48] soc/tegra: regulators: Fix locking up when voltage-spread is out of range Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 31/48] soc/tegra: regulators: Support Core domain state syncing Dmitry Osipenko
2021-01-12 13:57 ` Ulf Hansson
2020-12-17 18:06 ` [PATCH v2 32/48] clk: tegra: Support runtime PM, power domain and OPP Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 33/48] gpu: host1x: Add host1x_channel_stop() Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 34/48] gpu: host1x: Support power management Dmitry Osipenko
2020-12-17 18:21 ` Mikko Perttunen
2020-12-17 18:45 ` Dmitry Osipenko
2020-12-17 20:58 ` Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 35/48] drm/tegra: dc: Support OPP and SoC core voltage scaling Dmitry Osipenko
2021-01-12 14:16 ` Ulf Hansson
2020-12-17 18:06 ` [PATCH v2 36/48] drm/tegra: gr2d: Correct swapped device-tree compatibles Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 37/48] drm/tegra: gr2d: Support OPP and power management Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 38/48] drm/tegra: g3d: " Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 39/48] drm/tegra: vic: Stop channel before suspending Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 40/48] media: staging: tegra-vde: Support OPP and generic power domain Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 41/48] memory: tegra20-emc: Use devm_tegra_core_dev_init_opp_table() Dmitry Osipenko
2020-12-19 11:02 ` Krzysztof Kozlowski
2020-12-20 18:34 ` Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 42/48] memory: tegra30-emc: " Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 43/48] ARM: tegra: Add OPP tables and power domains to Tegra20 device-tree Dmitry Osipenko
2020-12-22 5:47 ` Viresh Kumar
2020-12-22 19:24 ` Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 44/48] ARM: tegra: Add OPP tables and power domains to Tegra30 device-tree Dmitry Osipenko
2020-12-22 9:14 ` Viresh Kumar
2020-12-22 19:25 ` Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 45/48] ARM: tegra: acer-a500: Enable core voltage scaling Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 46/48] ARM: tegra: ventana: " Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 47/48] ARM: tegra: ventana: Support CPU voltage scaling and thermal throttling Dmitry Osipenko
2020-12-17 18:28 ` Daniel Lezcano
2020-12-17 19:01 ` Dmitry Osipenko
2020-12-17 19:36 ` Daniel Lezcano
2020-12-17 20:28 ` Dmitry Osipenko
2020-12-17 21:19 ` Daniel Lezcano
2020-12-17 21:56 ` Dmitry Osipenko
2020-12-17 18:06 ` [PATCH v2 48/48] ARM: tegra: cardhu: " Dmitry Osipenko
2020-12-17 18:28 ` Daniel Lezcano
2020-12-18 7:14 ` [PATCH v2 00/48] Introduce core voltage scaling for NVIDIA Tegra20/30 SoCs Viresh Kumar
2020-12-18 13:51 ` Dmitry Osipenko
2020-12-22 9:15 ` Viresh Kumar
2020-12-22 19:14 ` Dmitry Osipenko
2021-01-05 17:11 ` Krzysztof Kozlowski
2021-01-07 19:39 ` Dmitry Osipenko
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