1 files changed, 42 insertions, 37 deletions

diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index 01e05af5ae08..a03b7535c254 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -1299,29 +1299,24 @@ void ath10k_ce_per_engine_service(struct ath10k *ar, unsigned int ce_id)
 	struct ath10k_hw_ce_host_wm_regs *wm_regs = ar->hw_ce_regs->wm_regs;
 	u32 ctrl_addr = ce_state->ctrl_addr;
 
-	spin_lock_bh(&ce->ce_lock);
-
-	/* Clear the copy-complete interrupts that will be handled here. */
+	/*
+	 * Clear before handling
+	 *
+	 * Misc CE interrupts are not being handled, but still need
+	 * to be cleared.
+	 *
+	 * NOTE: When the last copy engine interrupt is cleared the
+	 * hardware will go to sleep.  Once this happens any access to
+	 * the CE registers can cause a hardware fault.
+	 */
 	ath10k_ce_engine_int_status_clear(ar, ctrl_addr,
-					  wm_regs->cc_mask);
-
-	spin_unlock_bh(&ce->ce_lock);
+					  wm_regs->cc_mask | wm_regs->wm_mask);
 
 	if (ce_state->recv_cb)
 		ce_state->recv_cb(ce_state);
 
 	if (ce_state->send_cb)
 		ce_state->send_cb(ce_state);
-
-	spin_lock_bh(&ce->ce_lock);
-
-	/*
-	 * Misc CE interrupts are not being handled, but still need
-	 * to be cleared.
-	 */
-	ath10k_ce_engine_int_status_clear(ar, ctrl_addr, wm_regs->wm_mask);
-
-	spin_unlock_bh(&ce->ce_lock);
 }
 EXPORT_SYMBOL(ath10k_ce_per_engine_service);
 
@@ -1372,45 +1367,55 @@ static void ath10k_ce_per_engine_handler_adjust(struct ath10k_ce_pipe *ce_state)
 	ath10k_ce_watermark_intr_disable(ar, ctrl_addr);
 }
 
-int ath10k_ce_disable_interrupts(struct ath10k *ar)
+void ath10k_ce_disable_interrupt(struct ath10k *ar, int ce_id)
 {
 	struct ath10k_ce *ce = ath10k_ce_priv(ar);
 	struct ath10k_ce_pipe *ce_state;
 	u32 ctrl_addr;
-	int ce_id;
 
-	for (ce_id = 0; ce_id < CE_COUNT; ce_id++) {
-		ce_state  = &ce->ce_states[ce_id];
-		if (ce_state->attr_flags & CE_ATTR_POLL)
-			continue;
+	ce_state  = &ce->ce_states[ce_id];
+	if (ce_state->attr_flags & CE_ATTR_POLL)
+		return;
 
-		ctrl_addr = ath10k_ce_base_address(ar, ce_id);
+	ctrl_addr = ath10k_ce_base_address(ar, ce_id);
 
-		ath10k_ce_copy_complete_intr_disable(ar, ctrl_addr);
-		ath10k_ce_error_intr_disable(ar, ctrl_addr);
-		ath10k_ce_watermark_intr_disable(ar, ctrl_addr);
-	}
+	ath10k_ce_copy_complete_intr_disable(ar, ctrl_addr);
+	ath10k_ce_error_intr_disable(ar, ctrl_addr);
+	ath10k_ce_watermark_intr_disable(ar, ctrl_addr);
+}
+EXPORT_SYMBOL(ath10k_ce_disable_interrupt);
 
-	return 0;
+void ath10k_ce_disable_interrupts(struct ath10k *ar)
+{
+	int ce_id;
+
+	for (ce_id = 0; ce_id < CE_COUNT; ce_id++)
+		ath10k_ce_disable_interrupt(ar, ce_id);
 }
 EXPORT_SYMBOL(ath10k_ce_disable_interrupts);
 
-void ath10k_ce_enable_interrupts(struct ath10k *ar)
+void ath10k_ce_enable_interrupt(struct ath10k *ar, int ce_id)
 {
 	struct ath10k_ce *ce = ath10k_ce_priv(ar);
-	int ce_id;
 	struct ath10k_ce_pipe *ce_state;
 
+	ce_state  = &ce->ce_states[ce_id];
+	if (ce_state->attr_flags & CE_ATTR_POLL)
+		return;
+
+	ath10k_ce_per_engine_handler_adjust(ce_state);
+}
+EXPORT_SYMBOL(ath10k_ce_enable_interrupt);
+
+void ath10k_ce_enable_interrupts(struct ath10k *ar)
+{
+	int ce_id;
+
 	/* Enable interrupts for copy engine that
 	 * are not using polling mode.
 	 */
-	for (ce_id = 0; ce_id < CE_COUNT; ce_id++) {
-		ce_state  = &ce->ce_states[ce_id];
-		if (ce_state->attr_flags & CE_ATTR_POLL)
-			continue;
-
-		ath10k_ce_per_engine_handler_adjust(ce_state);
-	}
+	for (ce_id = 0; ce_id < CE_COUNT; ce_id++)
+		ath10k_ce_enable_interrupt(ar, ce_id);
 }
 EXPORT_SYMBOL(ath10k_ce_enable_interrupts);