linux/drivers/pmdomain
Sudeep Holla 6cf5db71dc pmdomain: arm: scmi_pm_domain: Remove redundant state verification
Currently, scmi_pd_power() explicitly verifies whether the requested
power state was applied by calling state_get(). While this check could
detect failures where the state was not properly updated, ensuring
correctness is the responsibility of the SCMI firmware.

Removing this redundant state_get() call eliminates an unnecessary
round-trip to the firmware, improving efficiency. Any mismatches
between the requested and actual states should be handled by the SCMI
firmware, which must return a failure if state_set() is unsuccessful.

Additionally, in some cases, checking the state after powering off a
domain may be unreliable or unsafe, depending on the firmware
implementation.

This patch removes the redundant verification, simplifying the function
without compromising correctness.

Reported-and-tested-by: Ranjani Vaidyanathan <ranjani.vaidyanathan@nxp.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20250314095851.443979-1-sudeep.holla@arm.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-03-17 11:12:01 +01:00
..
actions pmdomain: Use device_get_match_data() 2023-10-17 11:45:11 +02:00
amlogic pmdomain: amlogic: fix T7 ISP secpower 2025-03-05 15:51:04 +01:00
apple pmdomain: apple: Make apple_pmgr_reset_ops static 2024-08-20 11:28:01 +02:00
arm pmdomain: arm: scmi_pm_domain: Remove redundant state verification 2025-03-17 11:12:01 +01:00
bcm pmdomain: bcm2835-power: set flag GENPD_FLAG_ACTIVE_WAKEUP 2025-02-13 14:43:02 +01:00
imx pmdomain: imx: gpcv2: use proper helper for property detection 2025-02-19 12:59:09 +01:00
mediatek pmdomain: airoha: Fix compilation error with Clang-20 and Thumb2 mode 2025-01-21 10:45:24 +01:00
qcom Get rid of 'remove_new' relic from platform driver struct 2024-12-01 15:12:43 -08:00
renesas pmdomain: renesas: rcar-sysc: Drop fwnode_dev_initialized() call 2025-02-14 12:24:12 +01:00
rockchip pmdomain: rockchip: add regulator dependency 2025-03-05 15:46:33 +01:00
samsung pmdomain: samsung: Move Kconfig option to the pmdomain subsystem 2023-10-04 23:41:56 +02:00
st pmdomain: st: Add a Kconfig option for the ux500 power domain 2023-10-04 23:41:56 +02:00
starfive pmdomain: starfive: Update prefixes for AON power domain 2023-10-04 23:41:57 +02:00
sunxi pmdomain: sunxi: add V853 ppu support 2025-02-14 12:23:05 +01:00
tegra pmdomain: core: constify of_phandle_args in xlate 2024-02-14 10:26:11 +01:00
thead pmdomain: thead: fix TH1520_AON_PROTOCOL dependency 2025-03-17 11:09:50 +01:00
ti pmdomain: ti: Use of_property_present() for non-boolean properties 2025-02-13 14:43:02 +01:00
xilinx Get rid of 'remove_new' relic from platform driver struct 2024-12-01 15:12:43 -08:00
Kconfig pmdomain: thead: Add power-domain driver for TH1520 2025-03-13 14:42:06 +01:00
Makefile pmdomain: thead: Add power-domain driver for TH1520 2025-03-13 14:42:06 +01:00
core.c pmdomain: core: Introduce dev_pm_genpd_rpm_always_on() 2025-02-13 14:47:48 +01:00
governor.c PM: domains: Move genpd and its governor to the pmdomain subsystem 2023-12-18 12:49:48 +01:00