diff options
| author | Sean Wang <sean.wang@mediatek.com> | 2021-10-19 05:30:15 +0800 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2021-10-25 15:36:23 +0200 |
| commit | 77b210d1ae7870159f4ec9ab10b0c29d661b7f99 (patch) | |
| tree | 39b1dcfc9f5dd314e83294f81471b224a24fb656 /drivers/bluetooth/btmtksdio.c | |
| parent | 877ec9e1d07b631587dbaf205ed929fa08579adf (diff) | |
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: 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>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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; |