iwlwifi: pcie: remove some more d0i3 code from the transport

CMD_SEND_IN_IDLE, CMD_MAKE_TRANS_IDLE and CMD_WAKE_UP_TRANS
are not used. Remove them.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/iwl-trans.h

@@ -159,10 +159,6 @@ static inline u32 iwl_rx_packet_payload_len(const struct iwl_rx_packet *pkt)
  * @CMD_ASYNC: Return right away and don't wait for the response
  * @CMD_WANT_SKB: Not valid with CMD_ASYNC. The caller needs the buffer of
  *	the response. The caller needs to call iwl_free_resp when done.
- * @CMD_SEND_IN_IDLE: The command should be sent even when the trans is idle.
- * @CMD_MAKE_TRANS_IDLE: The command response should mark the trans as idle.
- * @CMD_WAKE_UP_TRANS: The command response should wake up the trans
- *	(i.e. mark it as non-idle).
  * @CMD_WANT_ASYNC_CALLBACK: the op_mode's async callback function must be
  *	called after this command completes. Valid only with CMD_ASYNC.
  */
@@ -170,10 +166,7 @@ enum CMD_MODE {
 	CMD_ASYNC		= BIT(0),
 	CMD_WANT_SKB		= BIT(1),
 	CMD_SEND_IN_RFKILL	= BIT(2),
-	CMD_SEND_IN_IDLE	= BIT(3),
-	CMD_MAKE_TRANS_IDLE	= BIT(4),
-	CMD_WAKE_UP_TRANS	= BIT(5),
-	CMD_WANT_ASYNC_CALLBACK	= BIT(6),
+	CMD_WANT_ASYNC_CALLBACK	= BIT(3),
 };
 
 #define DEF_CMD_PAYLOAD_SIZE 320
@@ -659,11 +652,6 @@ enum iwl_plat_pm_mode {
 	IWL_PLAT_PM_MODE_D3,
 };
 
-/* Max time to wait for trans to become idle/non-idle on d0i3
- * enter/exit (in msecs).
- */
-#define IWL_TRANS_IDLE_TIMEOUT 2000
-
 /* Max time to wait for nmi interrupt */
 #define IWL_TRANS_NMI_TIMEOUT (HZ / 4)
 

drivers/net/wireless/intel/iwlwifi/pcie/internal.h

@@ -558,7 +558,6 @@ struct iwl_trans_pcie {
 	bool ucode_write_complete;
 	wait_queue_head_t ucode_write_waitq;
 	wait_queue_head_t wait_command_queue;
-	wait_queue_head_t d0i3_waitq;
 
 	u8 page_offs, dev_cmd_offs;
 
@@ -581,7 +580,6 @@ struct iwl_trans_pcie {
 	/*protect hw register */
 	spinlock_t reg_lock;
 	bool cmd_hold_nic_awake;
-	bool ref_cmd_in_flight;
 
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 	struct cont_rec fw_mon_data;

drivers/net/wireless/intel/iwlwifi/pcie/trans.c

@@ -3590,8 +3590,6 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 	/* Initialize the wait queue for commands */
 	init_waitqueue_head(&trans_pcie->wait_command_queue);
 
-	init_waitqueue_head(&trans_pcie->d0i3_waitq);
-
 	if (trans_pcie->msix_enabled) {
 		ret = iwl_pcie_init_msix_handler(pdev, trans_pcie);
 		if (ret)

drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c

@@ -926,16 +926,6 @@ static int iwl_pcie_gen2_send_hcmd_sync(struct iwl_trans *trans,
 
 	IWL_DEBUG_INFO(trans, "Setting HCMD_ACTIVE for command %s\n", cmd_str);
 
-	if (pm_runtime_suspended(&trans_pcie->pci_dev->dev)) {
-		ret = wait_event_timeout(trans_pcie->d0i3_waitq,
-				 pm_runtime_active(&trans_pcie->pci_dev->dev),
-				 msecs_to_jiffies(IWL_TRANS_IDLE_TIMEOUT));
-		if (!ret) {
-			IWL_ERR(trans, "Timeout exiting D0i3 before hcmd\n");
-			return -ETIMEDOUT;
-		}
-	}
-
 	cmd_idx = iwl_pcie_gen2_enqueue_hcmd(trans, cmd);
 	if (cmd_idx < 0) {
 		ret = cmd_idx;

drivers/net/wireless/intel/iwlwifi/pcie/tx.c

@@ -1858,20 +1858,6 @@ void iwl_pcie_hcmd_complete(struct iwl_trans *trans,
 		wake_up(&trans_pcie->wait_command_queue);
 	}
 
-	if (meta->flags & CMD_MAKE_TRANS_IDLE) {
-		IWL_DEBUG_INFO(trans, "complete %s - mark trans as idle\n",
-			       iwl_get_cmd_string(trans, cmd->hdr.cmd));
-		set_bit(STATUS_TRANS_IDLE, &trans->status);
-		wake_up(&trans_pcie->d0i3_waitq);
-	}
-
-	if (meta->flags & CMD_WAKE_UP_TRANS) {
-		IWL_DEBUG_INFO(trans, "complete %s - clear trans idle flag\n",
-			       iwl_get_cmd_string(trans, cmd->hdr.cmd));
-		clear_bit(STATUS_TRANS_IDLE, &trans->status);
-		wake_up(&trans_pcie->d0i3_waitq);
-	}
-
 	meta->flags = 0;
 
 	spin_unlock_bh(&txq->lock);
@@ -1918,16 +1904,6 @@ static int iwl_pcie_send_hcmd_sync(struct iwl_trans *trans,
 	IWL_DEBUG_INFO(trans, "Setting HCMD_ACTIVE for command %s\n",
 		       iwl_get_cmd_string(trans, cmd->id));
 
-	if (pm_runtime_suspended(&trans_pcie->pci_dev->dev)) {
-		ret = wait_event_timeout(trans_pcie->d0i3_waitq,
-				 pm_runtime_active(&trans_pcie->pci_dev->dev),
-				 msecs_to_jiffies(IWL_TRANS_IDLE_TIMEOUT));
-		if (!ret) {
-			IWL_ERR(trans, "Timeout exiting D0i3 before hcmd\n");
-			return -ETIMEDOUT;
-		}
-	}
-
 	cmd_idx = iwl_pcie_enqueue_hcmd(trans, cmd);
 	if (cmd_idx < 0) {
 		ret = cmd_idx;