Messages in this thread Patch in this message |  | | From | "Thomas Richard (TI.com)" <> | | Date | Thu, 27 Nov 2025 09:38:55 +0100 | | Subject | [PATCH RFC v2 1/4] firmware: ti_sci: add BOARDCFG_MANAGED mode support |
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In BOARDCFG_MANAGED mode, the low power mode configuration is done statically for the DM via the boardcfg. Constraints are not supported, and prepare_sleep() is not needed.
Signed-off-by: Thomas Richard (TI.com) <thomas.richard@bootlin.com> --- drivers/firmware/ti_sci.c | 10 +++++++--- drivers/firmware/ti_sci.h | 2 ++ 2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/drivers/firmware/ti_sci.c b/drivers/firmware/ti_sci.c index d1faa47576199..4afe1c4872ff8 100644 --- a/drivers/firmware/ti_sci.c +++ b/drivers/firmware/ti_sci.c @@ -3693,8 +3693,11 @@ static int ti_sci_prepare_system_suspend(struct ti_sci_info *info) return ti_sci_cmd_prepare_sleep(&info->handle, TISCI_MSG_VALUE_SLEEP_MODE_DM_MANAGED, 0, 0, 0); + } else if (info->fw_caps & MSG_FLAG_CAPS_LPM_BOARDCFG_MANAGED) { + /* Nothing to do in the BOARDCFG_MANAGED mode */ + return 0; } else { - /* DM Managed is not supported by the firmware. */ + /* DM Managed and BoardCfg Managed are not supported by the firmware. */ dev_err(info->dev, "Suspend to memory is not supported by the firmware\n"); return -EOPNOTSUPP; } @@ -3932,12 +3935,13 @@ static int ti_sci_probe(struct platform_device *pdev) } ti_sci_msg_cmd_query_fw_caps(&info->handle, &info->fw_caps); - dev_dbg(dev, "Detected firmware capabilities: %s%s%s%s%s\n", + dev_dbg(dev, "Detected firmware capabilities: %s%s%s%s%s%s\n", info->fw_caps & MSG_FLAG_CAPS_GENERIC ? "Generic" : "", info->fw_caps & MSG_FLAG_CAPS_LPM_PARTIAL_IO ? " Partial-IO" : "", info->fw_caps & MSG_FLAG_CAPS_LPM_DM_MANAGED ? " DM-Managed" : "", info->fw_caps & MSG_FLAG_CAPS_LPM_ABORT ? " LPM-Abort" : "", - info->fw_caps & MSG_FLAG_CAPS_IO_ISOLATION ? " IO-Isolation" : "" + info->fw_caps & MSG_FLAG_CAPS_IO_ISOLATION ? " IO-Isolation" : "", + info->fw_caps & MSG_FLAG_CAPS_LPM_BOARDCFG_MANAGED ? " BoardConfig-Managed" : "" ); ti_sci_setup_ops(info); diff --git a/drivers/firmware/ti_sci.h b/drivers/firmware/ti_sci.h index 7559cde17b6cc..3638c68351705 100644 --- a/drivers/firmware/ti_sci.h +++ b/drivers/firmware/ti_sci.h @@ -150,6 +150,7 @@ struct ti_sci_msg_req_reboot { * MSG_FLAG_CAPS_LPM_DM_MANAGED: LPM can be managed by DM * MSG_FLAG_CAPS_LPM_ABORT: Abort entry to LPM * MSG_FLAG_CAPS_IO_ISOLATION: IO Isolation support + * MSG_FLAG_CAPS_LPM_BOARDCFG_MANAGED: LPM config done statically for the DM via boardcfg * * Response to a generic message with message type TI_SCI_MSG_QUERY_FW_CAPS * providing currently available SOC/firmware capabilities. SoC that don't @@ -162,6 +163,7 @@ struct ti_sci_msg_resp_query_fw_caps { #define MSG_FLAG_CAPS_LPM_DM_MANAGED TI_SCI_MSG_FLAG(5) #define MSG_FLAG_CAPS_LPM_ABORT TI_SCI_MSG_FLAG(9) #define MSG_FLAG_CAPS_IO_ISOLATION TI_SCI_MSG_FLAG(7) +#define MSG_FLAG_CAPS_LPM_BOARDCFG_MANAGED TI_SCI_MSG_FLAG(10) #define MSG_MASK_CAPS_LPM GENMASK_ULL(4, 1) u64 fw_caps; } __packed; -- 2.51.0
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