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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 3/4] Bluetooth: btmtksdio: fix resume failure
Date: Sat, 20 Nov 2021 06:25:45 +0800	[thread overview]
Message-ID: <8a0a4db81b6aede029701cd4db734aaf9bd37ee7.1637360076.git.objelf@gmail.com> (raw)
In-Reply-To: <4176102d8bbc36e5156e348df666a3e12c5a3d75.1637360076.git.objelf@gmail.com>

From: Sean Wang <sean.wang@mediatek.com>

btmtksdio have to rely on MMC_PM_KEEP_POWER in pm_flags to avoid that
SDIO power is being shut off during the device is in suspend. That fixes
the SDIO command fails to access the bus after the device is resumed.

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 | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index 4c46c62e4623..cae1fcd15512 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -1040,6 +1040,8 @@ static int btmtksdio_runtime_suspend(struct device *dev)
 	if (!test_bit(HCI_RUNNING, &bdev->hdev->flags))
 		return 0;
 
+	sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
+
 	sdio_claim_host(bdev->func);
 
 	sdio_writel(bdev->func, C_FW_OWN_REQ_SET, MTK_REG_CHLPCR, &err);
-- 
2.25.1


WARNING: multiple messages have this Message-ID (diff)
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 3/4] Bluetooth: btmtksdio: fix resume failure
Date: Sat, 20 Nov 2021 06:25:45 +0800	[thread overview]
Message-ID: <8a0a4db81b6aede029701cd4db734aaf9bd37ee7.1637360076.git.objelf@gmail.com> (raw)
In-Reply-To: <4176102d8bbc36e5156e348df666a3e12c5a3d75.1637360076.git.objelf@gmail.com>

From: Sean Wang <sean.wang@mediatek.com>

btmtksdio have to rely on MMC_PM_KEEP_POWER in pm_flags to avoid that
SDIO power is being shut off during the device is in suspend. That fixes
the SDIO command fails to access the bus after the device is resumed.

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 | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index 4c46c62e4623..cae1fcd15512 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -1040,6 +1040,8 @@ static int btmtksdio_runtime_suspend(struct device *dev)
 	if (!test_bit(HCI_RUNNING, &bdev->hdev->flags))
 		return 0;
 
+	sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
+
 	sdio_claim_host(bdev->func);
 
 	sdio_writel(bdev->func, C_FW_OWN_REQ_SET, MTK_REG_CHLPCR, &err);
-- 
2.25.1


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  parent reply	other threads:[~2021-11-19 22:26 UTC|newest]

Thread overview: 16+ 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
2021-11-19 22:25 ` [PATCH 2/4] Bluetooth: btmtksdio: handle runtime pm only when sdio_func is available sean.wang
2021-11-19 22:25   ` sean.wang
2021-11-24 14:53   ` Marcel Holtmann
2021-11-24 14:53     ` Marcel Holtmann
2021-11-19 22:25 ` sean.wang [this message]
2021-11-19 22:25   ` [PATCH 3/4] Bluetooth: btmtksdio: fix resume failure sean.wang
2021-11-24 15:21   ` Marcel Holtmann
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
2021-11-19 22:25   ` sean.wang
2021-11-24 15:20   ` Marcel Holtmann
2021-11-24 15:20     ` Marcel Holtmann
2021-11-24 15:19 ` [PATCH 1/4] Bluetooth: btmtksdio: drop the unnecessary variable created Marcel Holtmann
2021-11-24 15:19   ` Marcel Holtmann

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