From: Miri Korenblit <miriam.rachel.korenblit@xxxxxxxxx>
Transition to d3 is much faster if there is no power save during the
transition. Therefore a new flag was added to the device power cmd to
indicate the power save isn't allowed until the transition is completed.
Set this flag in _iwl_mvm_suspend, when the transition begins.
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@xxxxxxxxx>
Signed-off-by: Gregory Greenman <gregory.greenman@xxxxxxxxx>
---
drivers/net/wireless/intel/iwlwifi/fw/api/power.h | 7 +++++--
drivers/net/wireless/intel/iwlwifi/mvm/power.c | 5 +++++
2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/power.h b/drivers/net/wireless/intel/iwlwifi/fw/api/power.h
index 85d89f559f6c..040d83fa5424 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/power.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/power.h
@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
/*
- * Copyright (C) 2012-2014, 2018-2022 Intel Corporation
+ * Copyright (C) 2012-2014, 2018-2023 Intel Corporation
* Copyright (C) 2013-2014 Intel Mobile Communications GmbH
* Copyright (C) 2015-2017 Intel Deutschland GmbH
*/
@@ -144,6 +144,8 @@ struct iwl_powertable_cmd {
* receiver and transmitter. '0' - does not allow.
* @DEVICE_POWER_FLAGS_ALLOW_MEM_RETENTION_MSK:
* Device Retention indication, '1' indicate retention is enabled.
+ * @DEVICE_POWER_FLAGS_NO_SLEEP_TILL_D3_MSK:
+ * Prevent power save until entering d3 is completed.
* @DEVICE_POWER_FLAGS_32K_CLK_VALID_MSK:
* 32Khz external slow clock valid indication, '1' indicate cloack is
* valid.
@@ -151,6 +153,7 @@ struct iwl_powertable_cmd {
enum iwl_device_power_flags {
DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK = BIT(0),
DEVICE_POWER_FLAGS_ALLOW_MEM_RETENTION_MSK = BIT(1),
+ DEVICE_POWER_FLAGS_NO_SLEEP_TILL_D3_MSK = BIT(7),
DEVICE_POWER_FLAGS_32K_CLK_VALID_MSK = BIT(12),
};
@@ -162,7 +165,7 @@ enum iwl_device_power_flags {
* @reserved: reserved (padding)
*/
struct iwl_device_power_cmd {
- /* PM_POWER_TABLE_CMD_API_S_VER_6 */
+ /* PM_POWER_TABLE_CMD_API_S_VER_7 */
__le16 flags;
__le16 reserved;
} __packed;
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/power.c b/drivers/net/wireless/intel/iwlwifi/mvm/power.c
index 9131b5f1bc76..1b9b06e0443f 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/power.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/power.c
@@ -489,6 +489,11 @@ int iwl_mvm_power_update_device(struct iwl_mvm *mvm)
if (mvm->ext_clock_valid)
cmd.flags |= cpu_to_le16(DEVICE_POWER_FLAGS_32K_CLK_VALID_MSK);
+ if (iwl_fw_lookup_cmd_ver(mvm->fw, POWER_TABLE_CMD, 0) >= 7 &&
+ test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))
+ cmd.flags |=
+ cpu_to_le16(DEVICE_POWER_FLAGS_NO_SLEEP_TILL_D3_MSK);
+
IWL_DEBUG_POWER(mvm,
"Sending device power command with flags = 0x%X\n",
cmd.flags);
--
2.38.1
