Messages in this thread Patch in this message | | | From | <> | Subject | [PATCH 2/4] Bluetooth: btmtksdio: handle runtime pm only when sdio_func is available | Date | Sat, 20 Nov 2021 06:25:44 +0800 |
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From: Sean Wang <sean.wang@mediatek.com>
Runtime pm ops is not aware the sdio_func status that is probably being disabled by btmtksdio_close. Thus, we are only able to access the sdio_func for the runtime pm operations only when the sdio_func is available.
Fixes: 7f3c563c575e7 ("Bluetooth: btmtksdio: Add runtime PM support to SDIO based Bluetooth") 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 | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c index 4f3412ad8fca..4c46c62e4623 100644 --- a/drivers/bluetooth/btmtksdio.c +++ b/drivers/bluetooth/btmtksdio.c @@ -1037,6 +1037,9 @@ static int btmtksdio_runtime_suspend(struct device *dev) if (!bdev) return 0; + if (!test_bit(HCI_RUNNING, &bdev->hdev->flags)) + return 0; + sdio_claim_host(bdev->func); sdio_writel(bdev->func, C_FW_OWN_REQ_SET, MTK_REG_CHLPCR, &err); @@ -1064,6 +1067,9 @@ static int btmtksdio_runtime_resume(struct device *dev) if (!bdev) return 0; + if (!test_bit(HCI_RUNNING, &bdev->hdev->flags)) + return 0; + sdio_claim_host(bdev->func); sdio_writel(bdev->func, C_FW_OWN_REQ_CLR, MTK_REG_CHLPCR, &err); -- 2.25.1
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