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Date: Wed, 25 May 2022 23:02:46 +0800
From: kernel test robot <lkp@...el.com>
To: Viresh Kumar <viresh.kumar@...aro.org>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [vireshk-pm:opp/config 33/33] drivers/opp/core.c:1961:19: warning:
no previous prototype for 'dev_pm_opp_set_supported_hw'
tree: https://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git opp/config
head: d730dc101c586defb49eeafd8eea9b7bb0baa01b
commit: d730dc101c586defb49eeafd8eea9b7bb0baa01b [33/33] OPP: Remove unused APIs
config: x86_64-randconfig-a013 (https://download.01.org/0day-ci/archive/20220525/202205252210.GxZfRn3E-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-1) 11.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git/commit/?id=d730dc101c586defb49eeafd8eea9b7bb0baa01b
git remote add vireshk-pm https://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git
git fetch --no-tags vireshk-pm opp/config
git checkout d730dc101c586defb49eeafd8eea9b7bb0baa01b
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/opp/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
>> drivers/opp/core.c:1961:19: warning: no previous prototype for 'dev_pm_opp_set_supported_hw' [-Wmissing-prototypes]
1961 | struct opp_table *dev_pm_opp_set_supported_hw(struct device *dev,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/opp/core.c:1998:6: warning: no previous prototype for 'dev_pm_opp_put_supported_hw' [-Wmissing-prototypes]
1998 | void dev_pm_opp_put_supported_hw(struct opp_table *opp_table)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/opp/core.c:2026:5: warning: no previous prototype for 'devm_pm_opp_set_supported_hw' [-Wmissing-prototypes]
2026 | int devm_pm_opp_set_supported_hw(struct device *dev, const u32 *versions,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/opp/core.c:2050:19: warning: no previous prototype for 'dev_pm_opp_set_prop_name' [-Wmissing-prototypes]
2050 | struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name)
| ^~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/opp/core.c:2083:6: warning: no previous prototype for 'dev_pm_opp_put_prop_name' [-Wmissing-prototypes]
2083 | void dev_pm_opp_put_prop_name(struct opp_table *opp_table)
| ^~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/opp/core.c:2107:19: warning: no previous prototype for 'dev_pm_opp_set_regulators' [-Wmissing-prototypes]
2107 | struct opp_table *dev_pm_opp_set_regulators(struct device *dev,
| ^~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/opp/core.c:2186:6: warning: no previous prototype for 'dev_pm_opp_put_regulators' [-Wmissing-prototypes]
2186 | void dev_pm_opp_put_regulators(struct opp_table *opp_table)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/opp/core.c:2238:5: warning: no previous prototype for 'devm_pm_opp_set_regulators' [-Wmissing-prototypes]
2238 | int devm_pm_opp_set_regulators(struct device *dev,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/opp/core.c:2265:19: warning: no previous prototype for 'dev_pm_opp_set_clkname' [-Wmissing-prototypes]
2265 | struct opp_table *dev_pm_opp_set_clkname(struct device *dev, const char *name)
| ^~~~~~~~~~~~~~~~~~~~~~
>> drivers/opp/core.c:2309:6: warning: no previous prototype for 'dev_pm_opp_put_clkname' [-Wmissing-prototypes]
2309 | void dev_pm_opp_put_clkname(struct opp_table *opp_table)
| ^~~~~~~~~~~~~~~~~~~~~~
>> drivers/opp/core.c:2336:5: warning: no previous prototype for 'devm_pm_opp_set_clkname' [-Wmissing-prototypes]
2336 | int devm_pm_opp_set_clkname(struct device *dev, const char *name)
| ^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/opp/core.c:2359:19: warning: no previous prototype for 'dev_pm_opp_register_set_opp_helper' [-Wmissing-prototypes]
2359 | struct opp_table *dev_pm_opp_register_set_opp_helper(struct device *dev,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/opp/core.c:2408:6: warning: no previous prototype for 'dev_pm_opp_unregister_set_opp_helper' [-Wmissing-prototypes]
2408 | void dev_pm_opp_unregister_set_opp_helper(struct opp_table *opp_table)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/opp/core.c:2438:5: warning: no previous prototype for 'devm_pm_opp_register_set_opp_helper' [-Wmissing-prototypes]
2438 | int devm_pm_opp_register_set_opp_helper(struct device *dev,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/opp/core.c:2493:19: warning: no previous prototype for 'dev_pm_opp_attach_genpd' [-Wmissing-prototypes]
2493 | struct opp_table *dev_pm_opp_attach_genpd(struct device *dev,
| ^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/opp/core.c:2570:6: warning: no previous prototype for 'dev_pm_opp_detach_genpd' [-Wmissing-prototypes]
2570 | void dev_pm_opp_detach_genpd(struct opp_table *opp_table)
| ^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/opp/core.c:2603:5: warning: no previous prototype for 'devm_pm_opp_attach_genpd' [-Wmissing-prototypes]
2603 | int devm_pm_opp_attach_genpd(struct device *dev, const char * const *names,
| ^~~~~~~~~~~~~~~~~~~~~~~~
vim +/dev_pm_opp_set_supported_hw +1961 drivers/opp/core.c
38393409da345cd drivers/base/power/opp.c Viresh Kumar 2014-11-25 1949
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1950 /**
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1951 * dev_pm_opp_set_supported_hw() - Set supported platforms
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1952 * @dev: Device for which supported-hw has to be set.
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1953 * @versions: Array of hierarchy of versions to match.
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1954 * @count: Number of elements in the array.
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1955 *
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1956 * This is required only for the V2 bindings, and it enables a platform to
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1957 * specify the hierarchy of versions it supports. OPP layer will then enable
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1958 * OPPs, which are available for those versions, based on its 'opp-supported-hw'
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1959 * property.
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1960 */
fa30184d192ec78 drivers/base/power/opp/core.c Viresh Kumar 2017-01-23 @1961 struct opp_table *dev_pm_opp_set_supported_hw(struct device *dev,
fa30184d192ec78 drivers/base/power/opp/core.c Viresh Kumar 2017-01-23 1962 const u32 *versions, unsigned int count)
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1963 {
2c2709dc6921c5d drivers/base/power/opp/core.c Viresh Kumar 2016-02-16 1964 struct opp_table *opp_table;
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1965
32439ac7535a8ed drivers/opp/core.c Viresh Kumar 2021-01-28 1966 opp_table = _add_opp_table(dev, false);
dd461cd9183fe80 drivers/opp/core.c Stephan Gerhold 2020-07-27 1967 if (IS_ERR(opp_table))
dd461cd9183fe80 drivers/opp/core.c Stephan Gerhold 2020-07-27 1968 return opp_table;
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1969
2c2709dc6921c5d drivers/base/power/opp/core.c Viresh Kumar 2016-02-16 1970 /* Make sure there are no concurrent readers while updating opp_table */
2c2709dc6921c5d drivers/base/power/opp/core.c Viresh Kumar 2016-02-16 1971 WARN_ON(!list_empty(&opp_table->opp_list));
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1972
25419de1b8dda24 drivers/opp/core.c Viresh Kumar 2018-05-22 1973 /* Another CPU that shares the OPP table has set the property ? */
25419de1b8dda24 drivers/opp/core.c Viresh Kumar 2018-05-22 1974 if (opp_table->supported_hw)
25419de1b8dda24 drivers/opp/core.c Viresh Kumar 2018-05-22 1975 return opp_table;
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1976
2c2709dc6921c5d drivers/base/power/opp/core.c Viresh Kumar 2016-02-16 1977 opp_table->supported_hw = kmemdup(versions, count * sizeof(*versions),
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1978 GFP_KERNEL);
2c2709dc6921c5d drivers/base/power/opp/core.c Viresh Kumar 2016-02-16 1979 if (!opp_table->supported_hw) {
25419de1b8dda24 drivers/opp/core.c Viresh Kumar 2018-05-22 1980 dev_pm_opp_put_opp_table(opp_table);
25419de1b8dda24 drivers/opp/core.c Viresh Kumar 2018-05-22 1981 return ERR_PTR(-ENOMEM);
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1982 }
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1983
2c2709dc6921c5d drivers/base/power/opp/core.c Viresh Kumar 2016-02-16 1984 opp_table->supported_hw_count = count;
fa30184d192ec78 drivers/base/power/opp/core.c Viresh Kumar 2017-01-23 1985
fa30184d192ec78 drivers/base/power/opp/core.c Viresh Kumar 2017-01-23 1986 return opp_table;
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1987 }
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1988 EXPORT_SYMBOL_GPL(dev_pm_opp_set_supported_hw);
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1989
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1990 /**
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1991 * dev_pm_opp_put_supported_hw() - Releases resources blocked for supported hw
fa30184d192ec78 drivers/base/power/opp/core.c Viresh Kumar 2017-01-23 1992 * @opp_table: OPP table returned by dev_pm_opp_set_supported_hw().
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1993 *
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1994 * This is required only for the V2 bindings, and is called for a matching
2c2709dc6921c5d drivers/base/power/opp/core.c Viresh Kumar 2016-02-16 1995 * dev_pm_opp_set_supported_hw(). Until this is called, the opp_table structure
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1996 * will not be freed.
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1997 */
fa30184d192ec78 drivers/base/power/opp/core.c Viresh Kumar 2017-01-23 @1998 void dev_pm_opp_put_supported_hw(struct opp_table *opp_table)
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 1999 {
c7bf8758c955e62 drivers/opp/core.c Viresh Kumar 2020-11-06 2000 if (unlikely(!opp_table))
c7bf8758c955e62 drivers/opp/core.c Viresh Kumar 2020-11-06 2001 return;
c7bf8758c955e62 drivers/opp/core.c Viresh Kumar 2020-11-06 2002
2c2709dc6921c5d drivers/base/power/opp/core.c Viresh Kumar 2016-02-16 2003 kfree(opp_table->supported_hw);
2c2709dc6921c5d drivers/base/power/opp/core.c Viresh Kumar 2016-02-16 2004 opp_table->supported_hw = NULL;
2c2709dc6921c5d drivers/base/power/opp/core.c Viresh Kumar 2016-02-16 2005 opp_table->supported_hw_count = 0;
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2006
fa30184d192ec78 drivers/base/power/opp/core.c Viresh Kumar 2017-01-23 2007 dev_pm_opp_put_opp_table(opp_table);
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2008 }
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2009 EXPORT_SYMBOL_GPL(dev_pm_opp_put_supported_hw);
7de36b0aa51a5a5 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2010
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2011 static void devm_pm_opp_supported_hw_release(void *data)
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2012 {
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2013 dev_pm_opp_put_supported_hw(data);
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2014 }
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2015
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2016 /**
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2017 * devm_pm_opp_set_supported_hw() - Set supported platforms
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2018 * @dev: Device for which supported-hw has to be set.
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2019 * @versions: Array of hierarchy of versions to match.
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2020 * @count: Number of elements in the array.
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2021 *
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2022 * This is a resource-managed variant of dev_pm_opp_set_supported_hw().
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2023 *
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2024 * Return: 0 on success and errorno otherwise.
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2025 */
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 @2026 int devm_pm_opp_set_supported_hw(struct device *dev, const u32 *versions,
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2027 unsigned int count)
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2028 {
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2029 struct opp_table *opp_table;
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2030
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2031 opp_table = dev_pm_opp_set_supported_hw(dev, versions, count);
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2032 if (IS_ERR(opp_table))
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2033 return PTR_ERR(opp_table);
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2034
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2035 return devm_add_action_or_reset(dev, devm_pm_opp_supported_hw_release,
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2036 opp_table);
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2037 }
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2038 EXPORT_SYMBOL_GPL(devm_pm_opp_set_supported_hw);
9c4f220f3dc260e drivers/opp/core.c Yangtao Li 2021-03-14 2039
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2040 /**
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2041 * dev_pm_opp_set_prop_name() - Set prop-extn name
a5da64477ee79ef drivers/base/power/opp/core.c Viresh Kumar 2016-02-16 2042 * @dev: Device for which the prop-name has to be set.
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2043 * @name: name to postfix to properties.
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2044 *
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2045 * This is required only for the V2 bindings, and it enables a platform to
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2046 * specify the extn to be used for certain property names. The properties to
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2047 * which the extension will apply are opp-microvolt and opp-microamp. OPP core
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2048 * should postfix the property name with -<name> while looking for them.
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2049 */
fa30184d192ec78 drivers/base/power/opp/core.c Viresh Kumar 2017-01-23 @2050 struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name)
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2051 {
2c2709dc6921c5d drivers/base/power/opp/core.c Viresh Kumar 2016-02-16 2052 struct opp_table *opp_table;
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2053
32439ac7535a8ed drivers/opp/core.c Viresh Kumar 2021-01-28 2054 opp_table = _add_opp_table(dev, false);
dd461cd9183fe80 drivers/opp/core.c Stephan Gerhold 2020-07-27 2055 if (IS_ERR(opp_table))
dd461cd9183fe80 drivers/opp/core.c Stephan Gerhold 2020-07-27 2056 return opp_table;
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2057
2c2709dc6921c5d drivers/base/power/opp/core.c Viresh Kumar 2016-02-16 2058 /* Make sure there are no concurrent readers while updating opp_table */
2c2709dc6921c5d drivers/base/power/opp/core.c Viresh Kumar 2016-02-16 2059 WARN_ON(!list_empty(&opp_table->opp_list));
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2060
878ec1a9f0e5a6b drivers/opp/core.c Viresh Kumar 2018-05-22 2061 /* Another CPU that shares the OPP table has set the property ? */
878ec1a9f0e5a6b drivers/opp/core.c Viresh Kumar 2018-05-22 2062 if (opp_table->prop_name)
878ec1a9f0e5a6b drivers/opp/core.c Viresh Kumar 2018-05-22 2063 return opp_table;
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2064
2c2709dc6921c5d drivers/base/power/opp/core.c Viresh Kumar 2016-02-16 2065 opp_table->prop_name = kstrdup(name, GFP_KERNEL);
2c2709dc6921c5d drivers/base/power/opp/core.c Viresh Kumar 2016-02-16 2066 if (!opp_table->prop_name) {
878ec1a9f0e5a6b drivers/opp/core.c Viresh Kumar 2018-05-22 2067 dev_pm_opp_put_opp_table(opp_table);
878ec1a9f0e5a6b drivers/opp/core.c Viresh Kumar 2018-05-22 2068 return ERR_PTR(-ENOMEM);
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2069 }
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2070
fa30184d192ec78 drivers/base/power/opp/core.c Viresh Kumar 2017-01-23 2071 return opp_table;
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2072 }
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2073 EXPORT_SYMBOL_GPL(dev_pm_opp_set_prop_name);
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2074
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2075 /**
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2076 * dev_pm_opp_put_prop_name() - Releases resources blocked for prop-name
fa30184d192ec78 drivers/base/power/opp/core.c Viresh Kumar 2017-01-23 2077 * @opp_table: OPP table returned by dev_pm_opp_set_prop_name().
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2078 *
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2079 * This is required only for the V2 bindings, and is called for a matching
2c2709dc6921c5d drivers/base/power/opp/core.c Viresh Kumar 2016-02-16 2080 * dev_pm_opp_set_prop_name(). Until this is called, the opp_table structure
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2081 * will not be freed.
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2082 */
fa30184d192ec78 drivers/base/power/opp/core.c Viresh Kumar 2017-01-23 @2083 void dev_pm_opp_put_prop_name(struct opp_table *opp_table)
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2084 {
c7bf8758c955e62 drivers/opp/core.c Viresh Kumar 2020-11-06 2085 if (unlikely(!opp_table))
c7bf8758c955e62 drivers/opp/core.c Viresh Kumar 2020-11-06 2086 return;
c7bf8758c955e62 drivers/opp/core.c Viresh Kumar 2020-11-06 2087
2c2709dc6921c5d drivers/base/power/opp/core.c Viresh Kumar 2016-02-16 2088 kfree(opp_table->prop_name);
2c2709dc6921c5d drivers/base/power/opp/core.c Viresh Kumar 2016-02-16 2089 opp_table->prop_name = NULL;
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2090
fa30184d192ec78 drivers/base/power/opp/core.c Viresh Kumar 2017-01-23 2091 dev_pm_opp_put_opp_table(opp_table);
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2092 }
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2093 EXPORT_SYMBOL_GPL(dev_pm_opp_put_prop_name);
01fb4d3c39d35b7 drivers/base/power/opp/core.c Viresh Kumar 2015-12-09 2094
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2095 /**
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2096 * dev_pm_opp_set_regulators() - Set regulator names for the device
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2097 * @dev: Device for which regulator name is being set.
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2098 * @names: Array of pointers to the names of the regulator.
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2099 * @count: Number of regulators.
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2100 *
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2101 * In order to support OPP switching, OPP layer needs to know the name of the
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2102 * device's regulators, as the core would be required to switch voltages as
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2103 * well.
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2104 *
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2105 * This must be called before any OPPs are initialized for the device.
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2106 */
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 @2107 struct opp_table *dev_pm_opp_set_regulators(struct device *dev,
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2108 const char * const names[],
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2109 unsigned int count)
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2110 {
38bb34393804b79 drivers/opp/core.c Viresh Kumar 2021-01-19 2111 struct dev_pm_opp_supply *supplies;
2c2709dc6921c5d drivers/base/power/opp/core.c Viresh Kumar 2016-02-16 2112 struct opp_table *opp_table;
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2113 struct regulator *reg;
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2114 int ret, i;
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2115
32439ac7535a8ed drivers/opp/core.c Viresh Kumar 2021-01-28 2116 opp_table = _add_opp_table(dev, false);
dd461cd9183fe80 drivers/opp/core.c Stephan Gerhold 2020-07-27 2117 if (IS_ERR(opp_table))
dd461cd9183fe80 drivers/opp/core.c Stephan Gerhold 2020-07-27 2118 return opp_table;
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2119
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2120 /* This should be called before OPPs are initialized */
2c2709dc6921c5d drivers/base/power/opp/core.c Viresh Kumar 2016-02-16 2121 if (WARN_ON(!list_empty(&opp_table->opp_list))) {
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2122 ret = -EBUSY;
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2123 goto err;
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2124 }
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2125
779b783cfaa726c drivers/opp/core.c Viresh Kumar 2018-05-22 2126 /* Another CPU that shares the OPP table has set the regulators ? */
779b783cfaa726c drivers/opp/core.c Viresh Kumar 2018-05-22 2127 if (opp_table->regulators)
779b783cfaa726c drivers/opp/core.c Viresh Kumar 2018-05-22 2128 return opp_table;
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2129
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2130 opp_table->regulators = kmalloc_array(count,
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2131 sizeof(*opp_table->regulators),
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2132 GFP_KERNEL);
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2133 if (!opp_table->regulators) {
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2134 ret = -ENOMEM;
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2135 goto err;
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2136 }
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2137
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2138 for (i = 0; i < count; i++) {
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2139 reg = regulator_get_optional(dev, names[i]);
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2140 if (IS_ERR(reg)) {
543256d239b4156 drivers/opp/core.c Krzysztof Kozlowski 2022-04-08 2141 ret = dev_err_probe(dev, PTR_ERR(reg),
543256d239b4156 drivers/opp/core.c Krzysztof Kozlowski 2022-04-08 2142 "%s: no regulator (%s) found\n",
543256d239b4156 drivers/opp/core.c Krzysztof Kozlowski 2022-04-08 2143 __func__, names[i]);
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2144 goto free_regulators;
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2145 }
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2146
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2147 opp_table->regulators[i] = reg;
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2148 }
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2149
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2150 opp_table->regulator_count = count;
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2151
38bb34393804b79 drivers/opp/core.c Viresh Kumar 2021-01-19 2152 supplies = kmalloc_array(count * 2, sizeof(*supplies), GFP_KERNEL);
38bb34393804b79 drivers/opp/core.c Viresh Kumar 2021-01-19 2153 if (!supplies) {
38bb34393804b79 drivers/opp/core.c Viresh Kumar 2021-01-19 2154 ret = -ENOMEM;
947355850fcb3bb drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2155 goto free_regulators;
38bb34393804b79 drivers/opp/core.c Viresh Kumar 2021-01-19 2156 }
38bb34393804b79 drivers/opp/core.c Viresh Kumar 2021-01-19 2157
38bb34393804b79 drivers/opp/core.c Viresh Kumar 2021-01-19 2158 mutex_lock(&opp_table->lock);
38bb34393804b79 drivers/opp/core.c Viresh Kumar 2021-01-19 2159 opp_table->sod_supplies = supplies;
38bb34393804b79 drivers/opp/core.c Viresh Kumar 2021-01-19 2160 if (opp_table->set_opp_data) {
38bb34393804b79 drivers/opp/core.c Viresh Kumar 2021-01-19 2161 opp_table->set_opp_data->old_opp.supplies = supplies;
38bb34393804b79 drivers/opp/core.c Viresh Kumar 2021-01-19 2162 opp_table->set_opp_data->new_opp.supplies = supplies + count;
38bb34393804b79 drivers/opp/core.c Viresh Kumar 2021-01-19 2163 }
38bb34393804b79 drivers/opp/core.c Viresh Kumar 2021-01-19 2164 mutex_unlock(&opp_table->lock);
947355850fcb3bb drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2165
91291d9ad92faa6 drivers/base/power/opp/core.c Stephen Boyd 2016-11-30 2166 return opp_table;
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2167
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2168 free_regulators:
24957db10043533 drivers/opp/core.c Marek Szyprowski 2019-10-17 2169 while (i != 0)
24957db10043533 drivers/opp/core.c Marek Szyprowski 2019-10-17 2170 regulator_put(opp_table->regulators[--i]);
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2171
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2172 kfree(opp_table->regulators);
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2173 opp_table->regulators = NULL;
46f48aca2e5aef3 drivers/opp/core.c Viresh Kumar 2018-12-11 2174 opp_table->regulator_count = -1;
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2175 err:
fa30184d192ec78 drivers/base/power/opp/core.c Viresh Kumar 2017-01-23 2176 dev_pm_opp_put_opp_table(opp_table);
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2177
91291d9ad92faa6 drivers/base/power/opp/core.c Stephen Boyd 2016-11-30 2178 return ERR_PTR(ret);
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2179 }
dfbe4678d709e25 drivers/base/power/opp/core.c Viresh Kumar 2016-12-01 2180 EXPORT_SYMBOL_GPL(dev_pm_opp_set_regulators);
9f8ea969d5cfdd4 drivers/base/power/opp/core.c Viresh Kumar 2016-02-09 2181
:::::: The code at line 1961 was first introduced by commit
:::::: fa30184d192ec78d443cf6d3abc37d9eb3b9253e PM / OPP: Return opp_table from dev_pm_opp_set_*() routines
:::::: TO: Viresh Kumar <viresh.kumar@...aro.org>
:::::: CC: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
--
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