From e9f06763b9b88cb1338ef8a3f113b0fb94d714dd Mon Sep 17 00:00:00 2001 From: "Thomas Richard (TI)" Date: Tue, 19 May 2026 17:06:56 +0200 Subject: [PATCH] firmware: ti_sci: Add BOARDCFG_MANAGED mode support 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. Reviewed-by: Dhruva Gole Reviewed-by: Kendall Willis Signed-off-by: Thomas Richard (TI) Link: https://patch.msgid.link/20260519-ti-sci-jacinto-s2r-restore-irq-v9-1-c550a8ae0f31@bootlin.com Signed-off-by: Nishanth Menon --- drivers/firmware/ti_sci.c | 10 +++++++--- drivers/firmware/ti_sci.h | 3 +++ 2 files changed, 10 insertions(+), 3 deletions(-) diff --git a/drivers/firmware/ti_sci.c b/drivers/firmware/ti_sci.c index e027a2bd8f26..a8dcdbe874b6 100644 --- a/drivers/firmware/ti_sci.c +++ b/drivers/firmware/ti_sci.c @@ -3770,8 +3770,11 @@ 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; } @@ -4009,12 +4012,13 @@ 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 4616127e33ff..d5e06769b01c 100644 --- a/drivers/firmware/ti_sci.h +++ b/drivers/firmware/ti_sci.h @@ -150,6 +150,8 @@ 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 +164,7 @@ 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(12) #define MSG_MASK_CAPS_LPM GENMASK_ULL(4, 1) u64 fw_caps; } __packed;