2023-10-13 19:47:20

by Zhengping Jiang

Subject: [kernel PATCH v3] Bluetooth: btmtksdio: enable bluetooth wakeup in system suspend

The BTMTKSDIO_BT_WAKE_ENABLED flag is set for bluetooth interrupt
during system suspend and increases wakeup count for bluetooth event.

Signed-off-by: Zhengping Jiang <[email protected]>
---

Changes in v3:
- Replace deprecated macro.

Changes in v2:
- Add Bluetooth prefix to patch subject
- Fix warnings regarding using plain integer as NULL
- Add static to btmtksdio_pm_ops

Changes in v1:
- Add BTMTKSDIO_BT_WAKE_ENABLED flag
- Call pm_wakeup_event in btmtksdio_interrupt

drivers/bluetooth/btmtksdio.c | 44 ++++++++++++++++++++++++++++++-----
1 file changed, 38 insertions(+), 6 deletions(-)

diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index f9a3444753c2..ff4868c83cd8 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -118,6 +118,7 @@ MODULE_DEVICE_TABLE(sdio, btmtksdio_table);
#define BTMTKSDIO_FUNC_ENABLED 3
#define BTMTKSDIO_PATCH_ENABLED 4
#define BTMTKSDIO_HW_RESET_ACTIVE 5
+#define BTMTKSDIO_BT_WAKE_ENABLED 6

struct mtkbtsdio_hdr {
__le16 len;
@@ -554,7 +555,7 @@ static void btmtksdio_txrx_work(struct work_struct *work)
sdio_claim_host(bdev->func);

/* Disable interrupt */
- sdio_writel(bdev->func, C_INT_EN_CLR, MTK_REG_CHLPCR, 0);
+ sdio_writel(bdev->func, C_INT_EN_CLR, MTK_REG_CHLPCR, NULL);

txrx_timeout = jiffies + 5 * HZ;

@@ -576,7 +577,7 @@ static void btmtksdio_txrx_work(struct work_struct *work)
if ((int_status & FW_MAILBOX_INT) &&
bdev->data->chipid == 0x7921) {
sdio_writel(bdev->func, PH2DSM0R_DRIVER_OWN,
- MTK_REG_PH2DSM0R, 0);
+ MTK_REG_PH2DSM0R, NULL);
}

if (int_status & FW_OWN_BACK_INT)
@@ -608,7 +609,7 @@ static void btmtksdio_txrx_work(struct work_struct *work)
} while (int_status || time_is_before_jiffies(txrx_timeout));

/* Enable interrupt */
- sdio_writel(bdev->func, C_INT_EN_SET, MTK_REG_CHLPCR, 0);
+ sdio_writel(bdev->func, C_INT_EN_SET, MTK_REG_CHLPCR, NULL);

sdio_release_host(bdev->func);

@@ -620,8 +621,14 @@ static void btmtksdio_interrupt(struct sdio_func *func)
{
struct btmtksdio_dev *bdev = sdio_get_drvdata(func);

+ if (test_bit(BTMTKSDIO_BT_WAKE_ENABLED, &bdev->tx_state)) {
+ if (bdev->hdev->suspended)
+ pm_wakeup_event(bdev->dev, 0);
+ clear_bit(BTMTKSDIO_BT_WAKE_ENABLED, &bdev->tx_state);
+ }
+
/* Disable interrupt */
- sdio_writel(bdev->func, C_INT_EN_CLR, MTK_REG_CHLPCR, 0);
+ sdio_writel(bdev->func, C_INT_EN_CLR, MTK_REG_CHLPCR, NULL);

schedule_work(&bdev->txrx_work);
}
@@ -1454,6 +1461,23 @@ static int btmtksdio_runtime_suspend(struct device *dev)
return err;
}

+static int btmtksdio_system_suspend(struct device *dev)
+{
+ struct sdio_func *func = dev_to_sdio_func(dev);
+ struct btmtksdio_dev *bdev;
+
+ bdev = sdio_get_drvdata(func);
+ if (!bdev)
+ return 0;
+
+ if (!test_bit(BTMTKSDIO_FUNC_ENABLED, &bdev->tx_state))
+ return 0;
+
+ set_bit(BTMTKSDIO_BT_WAKE_ENABLED, &bdev->tx_state);
+
+ return btmtksdio_runtime_suspend(dev);
+}
+
static int btmtksdio_runtime_resume(struct device *dev)
{
struct sdio_func *func = dev_to_sdio_func(dev);
@@ -1474,8 +1498,16 @@ static int btmtksdio_runtime_resume(struct device *dev)
return err;
}

-static UNIVERSAL_DEV_PM_OPS(btmtksdio_pm_ops, btmtksdio_runtime_suspend,
- btmtksdio_runtime_resume, NULL);
+static int btmtksdio_system_resume(struct device *dev)
+{
+ return btmtksdio_runtime_resume(dev);
+}
+
+static const struct dev_pm_ops btmtksdio_pm_ops = {
+ SYSTEM_SLEEP_PM_OPS(btmtksdio_system_suspend, btmtksdio_system_resume)
+ RUNTIME_PM_OPS(btmtksdio_runtime_suspend, btmtksdio_runtime_resume, NULL)
+};
+
#define BTMTKSDIO_PM_OPS (&btmtksdio_pm_ops)
#else /* CONFIG_PM */
#define BTMTKSDIO_PM_OPS NULL
--
2.42.0.655.g421f12c284-goog

2023-10-17 23:31:01

by patchwork-bot+bluetooth

Subject: Re: [kernel PATCH v3] Bluetooth: btmtksdio: enable bluetooth wakeup in system suspend

Hello:

This patch was applied to bluetooth/bluetooth-next.git (master)
by Luiz Augusto von Dentz <[email protected]>:

On Fri, 13 Oct 2023 12:47:07 -0700 you wrote:
> The BTMTKSDIO_BT_WAKE_ENABLED flag is set for bluetooth interrupt
> during system suspend and increases wakeup count for bluetooth event.
>
> Signed-off-by: Zhengping Jiang <[email protected]>
> ---
>
> Changes in v3:
> - Replace deprecated macro.
>
> [...]

Here is the summary with links:
- [kernel,v3] Bluetooth: btmtksdio: enable bluetooth wakeup in system suspend
https://git.kernel.org/bluetooth/bluetooth-next/c/2fddfadb0478

You are awesome, thank you!
--
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