diff options
Diffstat (limited to 'drivers/bluetooth/btmtksdio.c')
| -rw-r--r-- | drivers/bluetooth/btmtksdio.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c index 77d1c4ac582d..57126a95e292 100644 --- a/drivers/bluetooth/btmtksdio.c +++ b/drivers/bluetooth/btmtksdio.c @@ -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; |