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Bluetooth: btmtksdio: refactor btmtksdio_runtime_[suspend|resume]()

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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@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Mark Chen <mark-yw.chen@mediatek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Mark Chen 2022-01-12 15:39:12 +08:00 committed by Marcel Holtmann
parent 2fc967cc0d
commit c7e301d7c8
1 changed files with 53 additions and 41 deletions
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94
drivers/bluetooth/btmtksdio.c
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@ -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 @@ err_release_host:
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);
err = btmtksdio_fw_pmctrl(bdev);
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:
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);
err = btmtksdio_drv_pmctrl(bdev);
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:
bt_dev_info(bdev->hdev, "status (%d) get ownership from device", err);
sdio_release_host(bdev->func);
return err;
}