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[v2,05/21] pmdomain: core: Prepare to add the common ->sync_state() support

Message ID 20250523134025.75130-6-ulf.hansson@linaro.org
State New
Headers show
Series [v2,01/21] pmdomain: core: Use of_fwnode_handle() | expand

Commit Message

Ulf Hansson May 23, 2025, 1:40 p.m. UTC 
Before we can implement the common ->sync_state() support in genpd, we need
to allow a few specific genpd providers to opt out from the new behaviour.

Let's introduce GENPD_FLAG_NO_SYNC_STATE as a new genpd config option, to
allow providers to opt out.

Suggested-by: Saravana Kannan <saravanak@google.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
 include/linux/pm_domain.h | 6 ++++++
 1 file changed, 6 insertions(+)
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Patch

diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 3578196e6626..9329554b9c4a 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -104,6 +104,11 @@  struct dev_pm_domain_list {
  * GENPD_FLAG_DEV_NAME_FW:	Instructs genpd to generate an unique device name
  *				using ida. It is used by genpd providers which
  *				get their genpd-names directly from FW.
+ *
+ * GENPD_FLAG_NO_SYNC_STATE:	The ->sync_state() support is implemented in a
+ *				genpd provider specific way, likely through a
+ *				parent device node. This flag makes genpd to
+ *				skip its internal support for this.
  */
 #define GENPD_FLAG_PM_CLK	 (1U << 0)
 #define GENPD_FLAG_IRQ_SAFE	 (1U << 1)
@@ -114,6 +119,7 @@  struct dev_pm_domain_list {
 #define GENPD_FLAG_MIN_RESIDENCY (1U << 6)
 #define GENPD_FLAG_OPP_TABLE_FW	 (1U << 7)
 #define GENPD_FLAG_DEV_NAME_FW	 (1U << 8)
+#define GENPD_FLAG_NO_SYNC_STATE (1U << 9)
 
 enum gpd_status {
 	GENPD_STATE_ON = 0,	/* PM domain is on */