From: <sean.wang@mediatek.com>
To: <marcel@holtmann.org>, <johan.hedberg@gmail.com>
Cc: <Mark-YW.Chen@mediatek.com>, <sean.wang@mediatek.com>,
<Soul.Huang@mediatek.com>, <YN.Chen@mediatek.com>,
<Leon.Yen@mediatek.com>, <Eric-SY.Chang@mediatek.com>,
<Deren.Wu@mediatek.com>, <km.lin@mediatek.com>,
<robin.chiu@mediatek.com>, <Eddie.Chen@mediatek.com>,
<ch.yeh@mediatek.com>, <posh.sun@mediatek.com>,
<ted.huang@mediatek.com>, <Eric.Liang@mediatek.com>,
<Stella.Chang@mediatek.com>, <Tom.Chou@mediatek.com>,
<steve.lee@mediatek.com>, <jsiuda@google.com>,
<frankgor@google.com>, <jemele@google.com>,
<abhishekpandit@google.com>, <michaelfsun@google.com>,
<mcchou@chromium.org>, <shawnku@google.com>,
<linux-bluetooth@vger.kernel.org>,
<linux-mediatek@lists.infradead.org>,
<linux-kernel@vger.kernel.org>,
Mark-yw Chen <mark-yw.chen@mediatek.com>
Subject: [PATCH 2/4] Bluetooth: btmtksdio: handle runtime pm only when sdio_func is available
Date: Sat, 20 Nov 2021 06:25:44 +0800 [thread overview]
Message-ID: <07cd9db8ef295bfe3e6b42796ccb8c9fb59dd9ba.1637360076.git.objelf@gmail.com> (raw)
In-Reply-To: <4176102d8bbc36e5156e348df666a3e12c5a3d75.1637360076.git.objelf@gmail.com>
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
next prev parent reply other threads:[~2021-11-19 22:26 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-19 22:25 [PATCH 1/4] Bluetooth: btmtksdio: drop the unnecessary variable created sean.wang
2021-11-19 22:25 ` sean.wang [this message]
2021-11-24 14:53 ` [PATCH 2/4] Bluetooth: btmtksdio: handle runtime pm only when sdio_func is available Marcel Holtmann
2021-11-19 22:25 ` [PATCH 3/4] Bluetooth: btmtksdio: fix resume failure sean.wang
2021-11-24 15:21 ` Marcel Holtmann
2021-11-19 22:25 ` [PATCH 4/4] Bluetooth: btmtksdio: add support of processing firmware coredump and log sean.wang
2021-11-24 15:20 ` Marcel Holtmann
2021-11-24 15:19 ` [PATCH 1/4] Bluetooth: btmtksdio: drop the unnecessary variable created Marcel Holtmann
[not found] <74A2D0D6-6A65-4832-BAFC-BCBA68F8DE78@holtmann.org--annotate>
2021-11-25 8:22 ` [PATCH 2/4] Bluetooth: btmtksdio: handle runtime pm only when sdio_func is available sean.wang
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