archives/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-03-08 05:04:51 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

pmdomain: core: Prepare to add the common ->sync_state() support

Browse source 
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>
Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X
Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20250701114733.636510-9-ulf.hansson@linaro.org
This commit is contained in:
Ulf Hansson 2025-07-01 13:47:10 +02:00
parent 6c3b746fd5
commit c8c196220c
1 changed files with 6 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

6
include/linux/pm_domain.h
View file

@ -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 */