Commit 77b210d1 authored by Sean Wang's avatar Sean Wang Committed by Marcel Holtmann
Browse files

Bluetooth: btmtksdio: explicitly set WHISR as write-1-clear 



That is a preliminary patch to introduce mt7921s support.

Explicitly set WHISR as write-1-clear method to all devices that is
the expected behavior the driver rely on.

Co-developed-by: default avatarMark-yw Chen <mark-yw.chen@mediatek.com>
Signed-off-by: default avatarMark-yw Chen <mark-yw.chen@mediatek.com>
Signed-off-by: default avatarSean Wang <sean.wang@mediatek.com>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 877ec9e1

drivers/bluetooth/btmtksdio.c

+8 −3
Original line number Diff line number Diff line
@@ -487,8 +487,8 @@ static void btmtksdio_interrupt(struct sdio_func *func) 
static int btmtksdio_open(struct hci_dev *hdev)

{

	struct btmtksdio_dev *bdev = hci_get_drvdata(hdev);

	u32 status, val;

	int err;

	u32 status;



	sdio_claim_host(bdev->func);
@@ -533,8 +533,13 @@ static int btmtksdio_open(struct hci_dev *hdev) 
	if (err < 0)

		goto err_release_irq;



	/* Setup write-1-clear for CHISR register */

	sdio_writel(bdev->func, C_INT_CLR_CTRL, MTK_REG_CHCR, &err);

	/* Explitly set write-1-clear method */

	val = sdio_readl(bdev->func, MTK_REG_CHCR, &err);

	if (err < 0)

		goto err_release_irq;



	val |= C_INT_CLR_CTRL;

	sdio_writel(bdev->func, val, MTK_REG_CHCR, &err);

	if (err < 0)

		goto err_release_irq;