On Mon, Jun 7, 2021 at 12:04 AM Samuel Holland [off-list ref] wrote:

On 6/2/21 6:23 AM, Anup Patel wrote:

quoted

The generic power domain related code in PSCI domain driver is largely
independent of PSCI and can be shared with RISC-V SBI domain driver
hence we factor-out this code into dt_idle_genpd.c and dt_idle_genpd.h.

Signed-off-by: Anup Patel <redacted>
Reviewed-by: Ulf Hansson <redacted>
---
 MAINTAINERS                           |   7 +
 drivers/cpuidle/Kconfig               |   4 +
 drivers/cpuidle/Kconfig.arm           |   1 +
 drivers/cpuidle/Makefile              |   1 +
 drivers/cpuidle/cpuidle-psci-domain.c | 138 +------------------
 drivers/cpuidle/cpuidle-psci.h        |  15 ++-
 drivers/cpuidle/dt_idle_genpd.c       | 182 ++++++++++++++++++++++++++
 drivers/cpuidle/dt_idle_genpd.h       |  50 +++++++
 8 files changed, 263 insertions(+), 135 deletions(-)
 create mode 100644 drivers/cpuidle/dt_idle_genpd.c
 create mode 100644 drivers/cpuidle/dt_idle_genpd.h

...

quoted

diff --git a/drivers/cpuidle/dt_idle_genpd.h b/drivers/cpuidle/dt_idle_genpd.h
new file mode 100644
index 000000000000..a8a3bad3cb7f
--- /dev/null
+++ b/drivers/cpuidle/dt_idle_genpd.h

@@ -0,0 +1,50 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __DT_IDLE_GENPD
+#define __DT_IDLE_GENPD
+
+struct device_node;
+struct generic_pm_domain;
+
+#ifdef CONFIG_DT_IDLE_GENPD
+
+void dt_idle_pd_free(struct generic_pm_domain *pd);
+
+struct generic_pm_domain *dt_idle_pd_alloc(struct device_node *np,
+                     int (*parse_state)(struct device_node *, u32 *));
+
+int dt_idle_pd_init_topology(struct device_node *np);
+
+struct device *dt_idle_attach_cpu(int cpu, const char *name);
+
+void dt_idle_detach_cpu(struct device *dev);
+
+#else
+
+static inline void dt_idle_pd_free(struct generic_pm_domain *pd)
+{
+}
+
+static inline struct generic_pm_domain *dt_idle_pd_alloc(
+                     struct device_node *np,
+                     int (*parse_state)(struct device_node *, u32 *));

In file included from drivers/cpuidle/cpuidle-sbi.c:27:
drivers/cpuidle/dt_idle_genpd.h:29:1: error: expected identifier or '('
before '{' token
   29 | {
      | ^

Looks like you have a stray semicolon here.

Okay, I will fix this in the next revision.

Regards,
Anup

quoted

+{
+     return NULL;
+}
+
+static inline int dt_idle_pd_init_topology(struct device_node *np)
+{
+     return 0;
+}
+
+static inline struct device *dt_idle_attach_cpu(int cpu, const char *name)
+{
+     return NULL;
+}
+
+static inline void dt_idle_detach_cpu(struct device *dev)
+{
+}
+
+#endif
+
+#endif

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