Merge tag 'cpufreq-arm-updates-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm

Merge ARM CPUFreq updates for 6.16 from Viresh Kumar:

"- Rust abstractions for CPUFreq framework (Viresh Kumar).

 - Rust abstractions for OPP framework (Viresh Kumar).

 - Basic Rust abstractions for Clk and Cpumask frameworks (Viresh Kumar).

 - Minor cleanup to the SCMI cpufreq driver (Mike Tipton)."

* tag 'cpufreq-arm-updates-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: (24 commits)
  cpufreq: scmi: Skip SCMI devices that aren't used by the CPUs
  cpufreq: Add Rust-based cpufreq-dt driver
  rust: opp: Extend OPP abstractions with cpufreq support
  rust: cpufreq: Extend abstractions for driver registration
  rust: cpufreq: Extend abstractions for policy and driver ops
  rust: cpufreq: Add initial abstractions for cpufreq framework
  rust: opp: Add abstractions for the configuration options
  rust: opp: Add abstractions for the OPP table
  rust: opp: Add initial abstractions for OPP framework
  rust: cpu: Add from_cpu()
  rust: macros: enable use of hyphens in module names
  rust: clk: Add initial abstractions
  rust: clk: Add helpers for Rust code
  MAINTAINERS: Add entry for Rust cpumask API
  rust: cpumask: Add initial abstractions
  rust: cpumask: Add few more helpers
  rust: devres: require a bound device
  rust: pci: move iomap_region() to impl Device<Bound>
  rust: device: implement Bound device context
  rust: pci: preserve device context in AsRef
  ...

4 files changed, 103 insertions, 0 deletions

diff --git a/rust/helpers/clk.c b/rust/helpers/clk.c
new file mode 100644
index 000000000000..6d04372c9f3b
--- /dev/null
+++ b/rust/helpers/clk.c
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/clk.h>
+
+/*
+ * The "inline" implementation of below helpers are only available when
+ * CONFIG_HAVE_CLK or CONFIG_HAVE_CLK_PREPARE aren't set.
+ */
+#ifndef CONFIG_HAVE_CLK
+struct clk *rust_helper_clk_get(struct device *dev, const char *id)
+{
+	return clk_get(dev, id);
+}
+
+void rust_helper_clk_put(struct clk *clk)
+{
+	clk_put(clk);
+}
+
+int rust_helper_clk_enable(struct clk *clk)
+{
+	return clk_enable(clk);
+}
+
+void rust_helper_clk_disable(struct clk *clk)
+{
+	clk_disable(clk);
+}
+
+unsigned long rust_helper_clk_get_rate(struct clk *clk)
+{
+	return clk_get_rate(clk);
+}
+
+int rust_helper_clk_set_rate(struct clk *clk, unsigned long rate)
+{
+	return clk_set_rate(clk, rate);
+}
+#endif
+
+#ifndef CONFIG_HAVE_CLK_PREPARE
+int rust_helper_clk_prepare(struct clk *clk)
+{
+	return clk_prepare(clk);
+}
+
+void rust_helper_clk_unprepare(struct clk *clk)
+{
+	clk_unprepare(clk);
+}
+#endif
+
+struct clk *rust_helper_clk_get_optional(struct device *dev, const char *id)
+{
+	return clk_get_optional(dev, id);
+}
+
+int rust_helper_clk_prepare_enable(struct clk *clk)
+{
+	return clk_prepare_enable(clk);
+}
+
+void rust_helper_clk_disable_unprepare(struct clk *clk)
+{
+	clk_disable_unprepare(clk);
+}
diff --git a/rust/helpers/cpufreq.c b/rust/helpers/cpufreq.c
new file mode 100644
index 000000000000..7c1343c4d65e
--- /dev/null
+++ b/rust/helpers/cpufreq.c
@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/cpufreq.h>
+
+#ifdef CONFIG_CPU_FREQ
+void rust_helper_cpufreq_register_em_with_opp(struct cpufreq_policy *policy)
+{
+	cpufreq_register_em_with_opp(policy);
+}
+#endif
diff --git a/rust/helpers/cpumask.c b/rust/helpers/cpumask.c
index 2d380a86c34a..eb10598a0242 100644
--- a/rust/helpers/cpumask.c
+++ b/rust/helpers/cpumask.c
@@ -7,16 +7,41 @@ void rust_helper_cpumask_set_cpu(unsigned int cpu, struct cpumask *dstp)
 	cpumask_set_cpu(cpu, dstp);
 }
 
+void rust_helper___cpumask_set_cpu(unsigned int cpu, struct cpumask *dstp)
+{
+	__cpumask_set_cpu(cpu, dstp);
+}
+
 void rust_helper_cpumask_clear_cpu(int cpu, struct cpumask *dstp)
 {
 	cpumask_clear_cpu(cpu, dstp);
 }
 
+void rust_helper___cpumask_clear_cpu(int cpu, struct cpumask *dstp)
+{
+	__cpumask_clear_cpu(cpu, dstp);
+}
+
+bool rust_helper_cpumask_test_cpu(int cpu, struct cpumask *srcp)
+{
+	return cpumask_test_cpu(cpu, srcp);
+}
+
 void rust_helper_cpumask_setall(struct cpumask *dstp)
 {
 	cpumask_setall(dstp);
 }
 
+bool rust_helper_cpumask_empty(struct cpumask *srcp)
+{
+	return cpumask_empty(srcp);
+}
+
+bool rust_helper_cpumask_full(struct cpumask *srcp)
+{
+	return cpumask_full(srcp);
+}
+
 unsigned int rust_helper_cpumask_weight(struct cpumask *srcp)
 {
 	return cpumask_weight(srcp);
diff --git a/rust/helpers/helpers.c b/rust/helpers/helpers.c
index 1e7c84df7252..d9d9d3f46ab3 100644
--- a/rust/helpers/helpers.c
+++ b/rust/helpers/helpers.c
@@ -11,6 +11,8 @@
 #include "bug.c"
 #include "build_assert.c"
 #include "build_bug.c"
+#include "clk.c"
+#include "cpufreq.c"
 #include "cpumask.c"
 #include "cred.c"
 #include "device.c"