[PATCH/RFC 3/9] pmdomain: arm: scmi: Add always-on support

[Geert Uytterhoeven]

Extend the PM domain flags with the flags advertized by the SCMI core.
For now this is limited to GENPD_FLAG_ALWAYS_ON.

Signed-off-by: Geert Uytterhoeven <geert+renesas at glider.be>
---
Questions:
  - Should the power_ops->state_get() call be skipped in case of an
    always-on domain, and state just be force to
    SCMI_POWER_STATE_GENERIC_ON instead?
  - Should the power_ops->state_set() call be skipped in case of an
    always-on domain? Or might this cause issues with some firmware
    implementations?
Skipping these calls may avoid adding quirk code later...
---
 drivers/pmdomain/arm/scmi_pm_domain.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pmdomain/arm/scmi_pm_domain.c b/drivers/pmdomain/arm/scmi_pm_domain.c
index 965592e828741b11..8e67f971c707e121 100644
--- a/drivers/pmdomain/arm/scmi_pm_domain.c
+++ b/drivers/pmdomain/arm/scmi_pm_domain.c
@@ -104,7 +104,8 @@ static int scmi_pm_domain_probe(struct scmi_device *sdev)
 		scmi_pd->genpd.name = scmi_pd->name;
 		scmi_pd->genpd.power_off = scmi_pd_power_off;
 		scmi_pd->genpd.power_on = scmi_pd_power_on;
-		scmi_pd->genpd.flags = GENPD_FLAG_ACTIVE_WAKEUP;
+		scmi_pd->genpd.flags = GENPD_FLAG_ACTIVE_WAKEUP |
+				       info->genpd_flags;
 
 		pm_genpd_init(&scmi_pd->genpd, NULL,
 			      state == SCMI_POWER_STATE_GENERIC_OFF);
-- 
2.43.0