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Date: Wed, 12 Jan 2022 15:39:12 +0800
From: <sean.wang@...iatek.com>
To: <marcel@...tmann.org>, <johan.hedberg@...il.com>
CC: <Mark-YW.Chen@...iatek.com>, <sean.wang@...iatek.com>,
<Soul.Huang@...iatek.com>, <YN.Chen@...iatek.com>,
<Leon.Yen@...iatek.com>, <Eric-SY.Chang@...iatek.com>,
<Deren.Wu@...iatek.com>, <km.lin@...iatek.com>,
<robin.chiu@...iatek.com>, <Eddie.Chen@...iatek.com>,
<ch.yeh@...iatek.com>, <posh.sun@...iatek.com>,
<ted.huang@...iatek.com>, <Eric.Liang@...iatek.com>,
<Stella.Chang@...iatek.com>, <Tom.Chou@...iatek.com>,
<steve.lee@...iatek.com>, <jsiuda@...gle.com>,
<frankgor@...gle.com>, <jemele@...gle.com>,
<abhishekpandit@...gle.com>, <michaelfsun@...gle.com>,
<mcchou@...omium.org>, <shawnku@...gle.com>,
<linux-bluetooth@...r.kernel.org>,
<linux-mediatek@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>,
Mark Chen <mark-yw.chen@...iatek.com>
Subject: [PATCH 2/7] Bluetooth: btmtksdio: refactor btmtksdio_runtime_[suspend|resume]()
From: Mark Chen <mark-yw.chen@...iatek.com>
Refactor btmtksdio_runtime_[suspend|resume]() to create the common
funcitons btmtksdio_[fw|drv]_pmctrl() shared with btmtksdio_[open|close]()
to avoid the redundant code as well.
This is also a prerequisite patch for the incoming patches.
Co-developed-by: Sean Wang <sean.wang@...iatek.com>
Signed-off-by: Sean Wang <sean.wang@...iatek.com>
Signed-off-by: Mark Chen <mark-yw.chen@...iatek.com>
---
drivers/bluetooth/btmtksdio.c | 94 ++++++++++++++++++++---------------
1 file changed, 53 insertions(+), 41 deletions(-)
diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index 784e65c3fddd..8cbd49013d86 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -282,6 +282,54 @@ static u32 btmtksdio_drv_own_query(struct btmtksdio_dev *bdev)
return sdio_readl(bdev->func, MTK_REG_CHLPCR, NULL);
}
+static int btmtksdio_fw_pmctrl(struct btmtksdio_dev *bdev)
+{
+ u32 status;
+ int err;
+
+ sdio_claim_host(bdev->func);
+
+ /* Return ownership to the device */
+ sdio_writel(bdev->func, C_FW_OWN_REQ_SET, MTK_REG_CHLPCR, &err);
+ if (err < 0)
+ goto out;
+
+ err = readx_poll_timeout(btmtksdio_drv_own_query, bdev, status,
+ !(status & C_COM_DRV_OWN), 2000, 1000000);
+
+out:
+ sdio_release_host(bdev->func);
+
+ if (err < 0)
+ bt_dev_err(bdev->hdev, "Cannot return ownership to device");
+
+ return err;
+}
+
+static int btmtksdio_drv_pmctrl(struct btmtksdio_dev *bdev)
+{
+ u32 status;
+ int err;
+
+ sdio_claim_host(bdev->func);
+
+ /* Get ownership from the device */
+ sdio_writel(bdev->func, C_FW_OWN_REQ_CLR, MTK_REG_CHLPCR, &err);
+ if (err < 0)
+ goto out;
+
+ err = readx_poll_timeout(btmtksdio_drv_own_query, bdev, status,
+ status & C_COM_DRV_OWN, 2000, 1000000);
+
+out:
+ sdio_release_host(bdev->func);
+
+ if (err < 0)
+ bt_dev_err(bdev->hdev, "Cannot get ownership from device");
+
+ return err;
+}
+
static int btmtksdio_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
{
struct btmtksdio_dev *bdev = hci_get_drvdata(hdev);
@@ -541,7 +589,7 @@ 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;
+ u32 val;
int err;
sdio_claim_host(bdev->func);
@@ -552,18 +600,10 @@ static int btmtksdio_open(struct hci_dev *hdev)
set_bit(BTMTKSDIO_FUNC_ENABLED, &bdev->tx_state);
- /* Get ownership from the device */
- sdio_writel(bdev->func, C_FW_OWN_REQ_CLR, MTK_REG_CHLPCR, &err);
+ err = btmtksdio_drv_pmctrl(bdev);
if (err < 0)
goto err_disable_func;
- err = readx_poll_timeout(btmtksdio_drv_own_query, bdev, status,
- status & C_COM_DRV_OWN, 2000, 1000000);
- if (err < 0) {
- bt_dev_err(bdev->hdev, "Cannot get ownership from device");
- goto err_disable_func;
- }
-
/* Disable interrupt & mask out all interrupt sources */
sdio_writel(bdev->func, C_INT_EN_CLR, MTK_REG_CHLPCR, &err);
if (err < 0)
@@ -633,8 +673,6 @@ static int btmtksdio_open(struct hci_dev *hdev)
static int btmtksdio_close(struct hci_dev *hdev)
{
struct btmtksdio_dev *bdev = hci_get_drvdata(hdev);
- u32 status;
- int err;
sdio_claim_host(bdev->func);
@@ -645,13 +683,7 @@ static int btmtksdio_close(struct hci_dev *hdev)
cancel_work_sync(&bdev->txrx_work);
- /* Return ownership to the device */
- sdio_writel(bdev->func, C_FW_OWN_REQ_SET, MTK_REG_CHLPCR, NULL);
-
- err = readx_poll_timeout(btmtksdio_drv_own_query, bdev, status,
- !(status & C_COM_DRV_OWN), 2000, 1000000);
- if (err < 0)
- bt_dev_err(bdev->hdev, "Cannot return ownership to device");
+ btmtksdio_fw_pmctrl(bdev);
clear_bit(BTMTKSDIO_FUNC_ENABLED, &bdev->tx_state);
sdio_disable_func(bdev->func);
@@ -1162,7 +1194,6 @@ static int btmtksdio_runtime_suspend(struct device *dev)
{
struct sdio_func *func = dev_to_sdio_func(dev);
struct btmtksdio_dev *bdev;
- u32 status;
int err;
bdev = sdio_get_drvdata(func);
@@ -1174,19 +1205,10 @@ static int btmtksdio_runtime_suspend(struct device *dev)
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);
- if (err < 0)
- goto out;
+ err = btmtksdio_fw_pmctrl(bdev);
- err = readx_poll_timeout(btmtksdio_drv_own_query, bdev, status,
- !(status & C_COM_DRV_OWN), 2000, 1000000);
-out:
bt_dev_info(bdev->hdev, "status (%d) return ownership to device", err);
- sdio_release_host(bdev->func);
-
return err;
}
@@ -1194,7 +1216,6 @@ static int btmtksdio_runtime_resume(struct device *dev)
{
struct sdio_func *func = dev_to_sdio_func(dev);
struct btmtksdio_dev *bdev;
- u32 status;
int err;
bdev = sdio_get_drvdata(func);
@@ -1204,19 +1225,10 @@ static int btmtksdio_runtime_resume(struct device *dev)
if (!test_bit(BTMTKSDIO_FUNC_ENABLED, &bdev->tx_state))
return 0;
- sdio_claim_host(bdev->func);
-
- sdio_writel(bdev->func, C_FW_OWN_REQ_CLR, MTK_REG_CHLPCR, &err);
- if (err < 0)
- goto out;
+ err = btmtksdio_drv_pmctrl(bdev);
- err = readx_poll_timeout(btmtksdio_drv_own_query, bdev, status,
- status & C_COM_DRV_OWN, 2000, 1000000);
-out:
bt_dev_info(bdev->hdev, "status (%d) get ownership from device", err);
- sdio_release_host(bdev->func);
-
return err;
}
--
2.25.1
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