diff mbox series

[v1] Bluetooth: hci_qca: Wait for SSR completion during suspend

Message ID 1609348628-3932-1-git-send-email-gubbaven@codeaurora.org
State Accepted
Commit ad3a9c0ec2d2baed936cfdd05870f9d1e1f40e0e
Headers show
Series [v1] Bluetooth: hci_qca: Wait for SSR completion during suspend | expand

Commit Message

Venkata Lakshmi Narayana Gubba Dec. 30, 2020, 5:17 p.m. UTC 
During SSR after memory dump collection,BT controller will be powered off,
powered on and then FW will be downloaded.During suspend if BT controller
is powered off due to SSR then we should wait until SSR is completed and
then suspend.

Fixes: 2be43abac5a8 ("Bluetooth: hci_qca: Wait for timeout during suspend")
Signed-off-by: Venkata Lakshmi Narayana Gubba <gubbaven@codeaurora.org>
---
 drivers/bluetooth/hci_qca.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

Comments

Marcel Holtmann Jan. 6, 2021, 7:50 a.m. UTC | #1 
Hi Venkata,

> During SSR after memory dump collection,BT controller will be powered off,

> powered on and then FW will be downloaded.During suspend if BT controller

> is powered off due to SSR then we should wait until SSR is completed and

> then suspend.

> 

> Fixes: 2be43abac5a8 ("Bluetooth: hci_qca: Wait for timeout during suspend")

> Signed-off-by: Venkata Lakshmi Narayana Gubba <gubbaven@codeaurora.org>

> ---

> drivers/bluetooth/hci_qca.c | 16 +++++++++-------

> 1 file changed, 9 insertions(+), 7 deletions(-)


patch has been applied to bluetooth-next tree.

Regards

Marcel
diff mbox series

Patch

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 4a96368..6ad4079 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -50,7 +50,8 @@ 
 #define IBS_HOST_TX_IDLE_TIMEOUT_MS	2000
 #define CMD_TRANS_TIMEOUT_MS		100
 #define MEMDUMP_TIMEOUT_MS		8000
-#define IBS_DISABLE_SSR_TIMEOUT_MS	(MEMDUMP_TIMEOUT_MS + 1000)
+#define IBS_DISABLE_SSR_TIMEOUT_MS \
+	(MEMDUMP_TIMEOUT_MS + FW_DOWNLOAD_TIMEOUT_MS)
 #define FW_DOWNLOAD_TIMEOUT_MS		3000
 
 /* susclk rate */
@@ -2100,7 +2101,12 @@  static int __maybe_unused qca_suspend(struct device *dev)
 
 	set_bit(QCA_SUSPENDING, &qca->flags);
 
-	if (test_bit(QCA_BT_OFF, &qca->flags))
+	/* During SSR after memory dump collection, controller will be
+	 * powered off and then powered on.If controller is powered off
+	 * during SSR then we should wait until SSR is completed.
+	 */
+	if (test_bit(QCA_BT_OFF, &qca->flags) &&
+	    !test_bit(QCA_SSR_TRIGGERED, &qca->flags))
 		return 0;
 
 	if (test_bit(QCA_IBS_DISABLED, &qca->flags)) {
@@ -2110,7 +2116,7 @@  static int __maybe_unused qca_suspend(struct device *dev)
 
 		/* QCA_IBS_DISABLED flag is set to true, During FW download
 		 * and during memory dump collection. It is reset to false,
-		 * After FW download complete and after memory dump collections.
+		 * After FW download complete.
 		 */
 		wait_on_bit_timeout(&qca->flags, QCA_IBS_DISABLED,
 			    TASK_UNINTERRUPTIBLE, msecs_to_jiffies(wait_timeout));
@@ -2122,10 +2128,6 @@  static int __maybe_unused qca_suspend(struct device *dev)
 		}
 	}
 
-	/* After memory dump collection, Controller is powered off.*/
-	if (test_bit(QCA_BT_OFF, &qca->flags))
-		return 0;
-
 	cancel_work_sync(&qca->ws_awake_device);
 	cancel_work_sync(&qca->ws_awake_rx);