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authorLinus Torvalds <torvalds@linux-foundation.org>2020-06-10 14:04:39 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-10 14:04:39 -0700
commit0c67f6b29715ff888cb967cc98336221a8a23916 (patch)
treeb5d29ea64f7ff74c841d20fe74187429d1753f00 /drivers/interconnect
parent49f13b0921aaef0d5519358fd9fcc237c1c9124a (diff)
parent50dd154ed7b17a8b3a1983fc32a8e41d4cc4211a (diff)
Merge tag 'pm-5.8-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki: "These are operating performance points (OPP) framework updates mostly, including support for interconnect bandwidth in the OPP core, plus a few cpufreq changes, including boost support in the CPPC cpufreq driver, an ACPI device power management fix and a hibernation code cleanup. Specifics: - Add support for interconnect bandwidth to the OPP core (Georgi Djakov, Saravana Kannan, Sibi Sankar, Viresh Kumar). - Add support for regulator enable/disable to the OPP core (Kamil Konieczny). - Add boost support to the CPPC cpufreq driver (Xiongfeng Wang). - Make the tegra186 cpufreq driver set the CPUFREQ_NEED_INITIAL_FREQ_CHECK flag (Mian Yousaf Kaukab). - Prevent the ACPI power management from using power resources with devices where the list of power resources for power state D0 (full power) is missing (Rafael Wysocki). - Annotate a hibernation-related function with __init (Christophe JAILLET)" * tag 'pm-5.8-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: PM: Avoid using power resources if there are none for D0 cpufreq: CPPC: add SW BOOST support cpufreq: change '.set_boost' to act on one policy PM: hibernate: Add __init annotation to swsusp_header_init() opp: Don't parse icc paths unnecessarily opp: Remove bandwidth votes when target_freq is zero opp: core: add regulators enable and disable opp: Reorder the code for !target_freq case opp: Expose bandwidth information via debugfs cpufreq: dt: Add support for interconnect bandwidth scaling opp: Update the bandwidth on OPP frequency changes opp: Add sanity checks in _read_opp_key() opp: Add support for parsing interconnect bandwidth cpufreq: tegra186: add CPUFREQ_NEED_INITIAL_FREQ_CHECK flag OPP: Add helpers for reading the binding properties dt-bindings: opp: Introduce opp-peak-kBps and opp-avg-kBps bindings
Diffstat (limited to 'drivers/interconnect')
-rw-r--r--drivers/interconnect/core.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c
index ece2a579a9b0..e5f998744501 100644
--- a/drivers/interconnect/core.c
+++ b/drivers/interconnect/core.c
@@ -544,6 +544,24 @@ void icc_set_tag(struct icc_path *path, u32 tag)
EXPORT_SYMBOL_GPL(icc_set_tag);
/**
+ * icc_get_name() - Get name of the icc path
+ * @path: reference to the path returned by icc_get()
+ *
+ * This function is used by an interconnect consumer to get the name of the icc
+ * path.
+ *
+ * Returns a valid pointer on success, or NULL otherwise.
+ */
+const char *icc_get_name(struct icc_path *path)
+{
+ if (!path)
+ return NULL;
+
+ return path->name;
+}
+EXPORT_SYMBOL_GPL(icc_get_name);
+
+/**
* icc_set_bw() - set bandwidth constraints on an interconnect path
* @path: reference to the path returned by icc_get()
* @avg_bw: average bandwidth in kilobytes per second