| Message ID | 07cd9db8ef295bfe3e6b42796ccb8c9fb59dd9ba.1637360076.git.objelf@gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | [1/4] Bluetooth: btmtksdio: drop the unnecessary variable created | expand |
Hi Sean, > 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); I dislike looking at HCI_RUNNING since that check should be removed from a driver. Do you really need it? I mean, a driver should now if it is running or not. Regards Marcel
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);