On Aug 29, 2024 at 22:16:04 +0200, Markus Schneider-Pargmann wrote:

From: Dave Gerlach <redacted>

Introduce power management ops supported by the TISCI
Low Power Mode API [1].

1) TISCI_MSG_LPM_WAKE_REASON
Get which wake up source woke the SoC from Low Power Mode.
The wake up source IDs will be common for all K3 platforms.

2) TISCI_MSG_LPM_SET_DEVICE_CONSTRAINT
Set LPM constraint on behalf of a device. By setting a constraint, the
device ensures that it will not be powered off or reset in the selected
mode.

3) TISCI_MSG_LPM_SET_LATENCY_CONSTRAINT
Set LPM resume latency constraint. By setting a constraint, the host
ensures that the resume time from selected mode will be less than the
constraint value.

[1] https://software-dl.ti.com/tisci/esd/latest/2_tisci_msgs/pm/lpm.html

Signed-off-by: Dave Gerlach <redacted>
[g-vlaev@ti.com: LPM_WAKE_REASON and IO_ISOLATION support]
Signed-off-by: Georgi Vlaev <redacted>
[a-kaur@ti.com: SET_DEVICE_CONSTRAINT support]
Signed-off-by: Akashdeep Kaur <redacted>
[vibhore@ti.com: SET_LATENCY_CONSTRAINT support]
Signed-off-by: Vibhore Vardhan <redacted>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Reviewed-by: Akashdeep Kaur <redacted>
Tested-by: Dhruva Gole <redacted>
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
---
 drivers/firmware/ti_sci.c              | 198 +++++++++++++++++++++++++
 drivers/firmware/ti_sci.h              |  76 ++++++++++
 include/linux/soc/ti/ti_sci_protocol.h |  26 ++++
 3 files changed, 300 insertions(+)

<removing older email addresses from CC>

LGTM,
Acked-by: Dhruva Gole <redacted>

-- 
Best regards,
Dhruva Gole
Texas Instruments Incorporated