From ae6a227802225358803c9749a703d11741229c86 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 9 Dec 2015 08:01:46 +0530 Subject: PM / OPP: Parse 'opp-supported-hw' binding OPP bindings allow a platform to enable OPPs based on the version of the hardware they are used for. Add support to the OPP-core to parse these bindings, by introducing dev_pm_opp_{set|put}_supported_hw() APIs. Signed-off-by: Viresh Kumar Tested-by: Lee Jones Signed-off-by: Rafael J. Wysocki (cherry picked from commit 7de36b0aa51a5a59e28fb2da768fa3ab07de0674) Signed-off-by: Alex Shi --- include/linux/pm_opp.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index 9a2e50337af9..3a85110242f0 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -55,6 +55,9 @@ int dev_pm_opp_enable(struct device *dev, unsigned long freq); int dev_pm_opp_disable(struct device *dev, unsigned long freq); struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev); +int dev_pm_opp_set_supported_hw(struct device *dev, const u32 *versions, + unsigned int count); +void dev_pm_opp_put_supported_hw(struct device *dev); #else static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp) { @@ -129,6 +132,16 @@ static inline struct srcu_notifier_head *dev_pm_opp_get_notifier( { return ERR_PTR(-EINVAL); } + +static inline int dev_pm_opp_set_supported_hw(struct device *dev, + const u32 *versions, + unsigned int count) +{ + return -EINVAL; +} + +static inline void dev_pm_opp_put_supported_hw(struct device *dev) {} + #endif /* CONFIG_PM_OPP */ #if defined(CONFIG_PM_OPP) && defined(CONFIG_OF) -- cgit v1.2.3 From 6a0f8e913de021196bded343c6742fa0db34a1a5 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 9 Dec 2015 08:01:47 +0530 Subject: PM / OPP: Parse 'opp--' bindings OPP bindings (for few properties) allow a platform to choose a value/range among a set of available options. The options are present as opp--, where the platform needs to supply the string. The OPP properties which allow such an option are: opp-microvolt and opp-microamp. Add support to the OPP-core to parse these bindings, by introducing dev_pm_opp_{set|put}_prop_name() APIs. Signed-off-by: Viresh Kumar Tested-by: Lee Jones Signed-off-by: Rafael J. Wysocki (cherry picked from commit 01fb4d3c39d35b725441e8a9a26b3f3ad67793ed) Signed-off-by: Alex Shi --- include/linux/pm_opp.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index 3a85110242f0..95403d2ccaf5 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -58,6 +58,8 @@ struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev); int dev_pm_opp_set_supported_hw(struct device *dev, const u32 *versions, unsigned int count); void dev_pm_opp_put_supported_hw(struct device *dev); +int dev_pm_opp_set_prop_name(struct device *dev, const char *name); +void dev_pm_opp_put_prop_name(struct device *dev); #else static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp) { @@ -142,6 +144,13 @@ static inline int dev_pm_opp_set_supported_hw(struct device *dev, static inline void dev_pm_opp_put_supported_hw(struct device *dev) {} +static inline int dev_pm_opp_set_prop_name(struct device *dev, const char *name) +{ + return -EINVAL; +} + +static inline void dev_pm_opp_put_prop_name(struct device *dev) {} + #endif /* CONFIG_PM_OPP */ #if defined(CONFIG_PM_OPP) && defined(CONFIG_OF) -- cgit v1.2.3 From c070696dd69afe9d5432fde66270d29e36da8da2 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Tue, 9 Feb 2016 10:30:33 +0530 Subject: PM / OPP: get/put regulators from OPP core This allows the OPP core to request/free the regulator resource, attached to a device OPP. The regulator device is fetched using the name provided by the driver, while calling: dev_pm_opp_set_regulator(). This will work for both OPP-v1 and v2 bindings. This is a preliminary step for moving the OPP switching logic into the OPP core. Signed-off-by: Viresh Kumar Reviewed-by: Stephen Boyd Signed-off-by: Rafael J. Wysocki (cherry picked from commit 9f8ea969d5cfdd4353d2adb004e8e2286b984369) Signed-off-by: Alex Shi --- include/linux/pm_opp.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index 95403d2ccaf5..c70a18ac9c8a 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -60,6 +60,8 @@ int dev_pm_opp_set_supported_hw(struct device *dev, const u32 *versions, void dev_pm_opp_put_supported_hw(struct device *dev); int dev_pm_opp_set_prop_name(struct device *dev, const char *name); void dev_pm_opp_put_prop_name(struct device *dev); +int dev_pm_opp_set_regulator(struct device *dev, const char *name); +void dev_pm_opp_put_regulator(struct device *dev); #else static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp) { @@ -151,6 +153,13 @@ static inline int dev_pm_opp_set_prop_name(struct device *dev, const char *name) static inline void dev_pm_opp_put_prop_name(struct device *dev) {} +static inline int dev_pm_opp_set_regulator(struct device *dev, const char *name) +{ + return -EINVAL; +} + +static inline void dev_pm_opp_put_regulator(struct device *dev) {} + #endif /* CONFIG_PM_OPP */ #if defined(CONFIG_PM_OPP) && defined(CONFIG_OF) -- cgit v1.2.3 From 525680c1a93d13d236e1eaecbdf360c32bfc6917 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Tue, 9 Feb 2016 10:30:35 +0530 Subject: PM / OPP: Introduce dev_pm_opp_get_max_volt_latency() In few use cases (like: cpufreq), it is desired to get the maximum voltage latency for changing OPPs. Add support for that. Signed-off-by: Viresh Kumar Reviewed-by: Stephen Boyd Signed-off-by: Rafael J. Wysocki (cherry picked from commit 655c9df961751ce21466f6e97e8033932c27a675) Signed-off-by: Alex Shi --- include/linux/pm_opp.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index c70a18ac9c8a..5daa43058ac1 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -34,6 +34,7 @@ bool dev_pm_opp_is_turbo(struct dev_pm_opp *opp); int dev_pm_opp_get_opp_count(struct device *dev); unsigned long dev_pm_opp_get_max_clock_latency(struct device *dev); +unsigned long dev_pm_opp_get_max_volt_latency(struct device *dev); struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev); struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, @@ -88,6 +89,11 @@ static inline unsigned long dev_pm_opp_get_max_clock_latency(struct device *dev) return 0; } +static inline unsigned long dev_pm_opp_get_max_volt_latency(struct device *dev) +{ + return 0; +} + static inline struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev) { return NULL; -- cgit v1.2.3 From 2f5f3fb48d3e36e6855fb658f25ce088ac6fe277 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Tue, 9 Feb 2016 10:30:36 +0530 Subject: PM / OPP: Introduce dev_pm_opp_get_max_transition_latency() In few use cases (like: cpufreq), it is desired to get the maximum latency for changing OPPs. Add support for that. Signed-off-by: Viresh Kumar Reviewed-by: Stephen Boyd Signed-off-by: Rafael J. Wysocki (cherry picked from commit 2174344765f472895c076d703c9cdc58215e1393) Signed-off-by: Alex Shi --- include/linux/pm_opp.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index 5daa43058ac1..59da3d9e11ea 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -35,6 +35,7 @@ bool dev_pm_opp_is_turbo(struct dev_pm_opp *opp); int dev_pm_opp_get_opp_count(struct device *dev); unsigned long dev_pm_opp_get_max_clock_latency(struct device *dev); unsigned long dev_pm_opp_get_max_volt_latency(struct device *dev); +unsigned long dev_pm_opp_get_max_transition_latency(struct device *dev); struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev); struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, @@ -94,6 +95,11 @@ static inline unsigned long dev_pm_opp_get_max_volt_latency(struct device *dev) return 0; } +static inline unsigned long dev_pm_opp_get_max_transition_latency(struct device *dev) +{ + return 0; +} + static inline struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev) { return NULL; -- cgit v1.2.3 From 6229dc0db2699e56996cb114a85eb59988e1163a Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Tue, 9 Feb 2016 10:30:39 +0530 Subject: PM / OPP: Add dev_pm_opp_set_rate() This adds a routine, dev_pm_opp_set_rate(), responsible for configuring power-supply and clock source for an OPP. The OPP is found by matching against the target_freq passed to the routine. This shall replace similar code present in most of the OPP users and help simplify them a lot. Signed-off-by: Viresh Kumar Reviewed-by: Stephen Boyd Signed-off-by: Rafael J. Wysocki (cherry picked from commit 6a0712f6f199e737aa5913d28ec4bd3a25de9660) Signed-off-by: Alex Shi --- include/linux/pm_opp.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index 59da3d9e11ea..cccaf4a29e9f 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -64,6 +64,7 @@ int dev_pm_opp_set_prop_name(struct device *dev, const char *name); void dev_pm_opp_put_prop_name(struct device *dev); int dev_pm_opp_set_regulator(struct device *dev, const char *name); void dev_pm_opp_put_regulator(struct device *dev); +int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq); #else static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp) { @@ -172,6 +173,11 @@ static inline int dev_pm_opp_set_regulator(struct device *dev, const char *name) static inline void dev_pm_opp_put_regulator(struct device *dev) {} +static inline int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq) +{ + return -EINVAL; +} + #endif /* CONFIG_PM_OPP */ #if defined(CONFIG_PM_OPP) && defined(CONFIG_OF) -- cgit v1.2.3