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[v1,06/10] Bluetooth: btmtksdio: update register CSDIOCSR operation

Message ID 629e6a12a0f1698fb78934d36b2c1ff65573957d.1633728573.git.objelf@gmail.com (mailing list archive)
State New, archived
Headers show
Series Add MT7921 SDIO Bluetooth support | expand

Commit Message

Sean Wang Oct. 8, 2021, 10:10 p.m. UTC 
From: Sean Wang <sean.wang@mediatek.com>

That is a preliminary patch to introduce mt7921s support.

Update register CSDIOCSR operation that is suggested from the vendor
driver and is compatible to the all devices.

Co-developed-by: Mark-yw Chen <mark-yw.chen@mediatek.com>
Signed-off-by: Mark-yw Chen <mark-yw.chen@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
 drivers/bluetooth/btmtksdio.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index f712b52e5797..3381c8844902 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -520,8 +520,12 @@  static int btmtksdio_open(struct hci_dev *hdev)
 	/* SDIO CMD 5 allows the SDIO device back to idle state an
 	 * synchronous interrupt is supported in SDIO 4-bit mode
 	 */
-	sdio_writel(bdev->func, SDIO_INT_CTL | SDIO_RE_INIT_EN,
-		    MTK_REG_CSDIOCSR, &err);
+	val = sdio_readl(bdev->func, MTK_REG_CSDIOCSR, &err);
+	if (err < 0)
+		goto err_release_irq;
+
+	val |= SDIO_INT_CTL;
+	sdio_writel(bdev->func, val, MTK_REG_CSDIOCSR, &err);
 	if (err < 0)
 		goto err_release_irq;