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Bluetooth: hci_qca: Give enough time to ROME controller to bootup.

PATCH In review Balakrishna Godavarthi 2 participants 2 messages Apr 1, 2019 – Apr 23, 2019

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Balakrishna Godavarthi

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#0 lore raw

PATCH v2 1/1 Bluetooth: hci_qca: Give enough time to ROME controller to bootup.

This patch enables enough time to ROME controller to bootup after we bring the enable pin out of reset.

Fixes 05ba533c5c11 ("Bluetooth: hci_qca: Add serdev support").
Signed-off-by Balakrishna Godavarthi <[email protected]>
Reviewed-by Rocky Liao <[email protected]>
Tested-by Rocky Liao <[email protected]>
Tested-by Claire Chang <[email protected]>

---
Changes in v2:
* added fixes tag in the commit text.

---
 drivers/bluetooth/hci_qca.c | 2 ++
 1 file changed, 2 insertions(+)
drivers/bluetooth/hci_qca.c +2 -0
index 4ea995d610d2..a80c3bc90904 100644
@@ -523,6 +523,8 @@ static int qca_open(struct hci_uart *hu)
 		qcadev = serdev_device_get_drvdata(hu->serdev);
 		if (qcadev->btsoc_type != QCA_WCN3990) {
 			gpiod_set_value_cansleep(qcadev->bt_en, 1);
+			/* Controller needs time to bootup. */
+			msleep(150);
 		} else {
 			hu->init_speed = qcadev->init_speed;
 			hu->oper_speed = qcadev->oper_speed;
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#1 lore raw

Hi Balakrishna,

Quoted 8 lines

This patch enables enough time to ROME controller to bootup after we bring the enable pin out of reset.

Fixes 05ba533c5c11 ("Bluetooth: hci_qca: Add serdev support").
Signed-off-by Balakrishna Godavarthi <[email protected]>
Reviewed-by Rocky Liao <[email protected]>
Tested-by Rocky Liao <[email protected]>
Tested-by Claire Chang <[email protected]>
Quoted 6 lines

---
Changes in v2:
* added fixes tag in the commit text.
---
drivers/bluetooth/hci_qca.c | 2 ++

1 file changed, 2 insertions(+)

patch has been applied to bluetooth-next tree.

Regards

Marcel