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authorSean Wang <sean.wang@mediatek.com>2022-06-27 02:27:36 +0300
committerLuiz Augusto von Dentz <luiz.von.dentz@intel.com>2022-07-22 03:08:03 +0300
commitdf332800a914e9fd97b83aa63832979227fd8a8d (patch)
treef28dcc63d418ae23348b3c470c0e6af1dc41212c /drivers/bluetooth
parentd7b2fdfb53ea09382941c0a4950dc9b00d51d1c7 (diff)
downloadlinux-df332800a914e9fd97b83aa63832979227fd8a8d.tar.xz
Bluetooth: btmtksdio: Add in-band wakeup support
Commit ce64b3e94919 ("Bluetooth: mt7921s: Support wake on bluetooth") adds the wake on bluethooth via a dedicated GPIO. Extend the wake-on-bluetooth to use the SDIO DAT1 pin (in-band wakeup), when supported by the SDIO host driver. Co-developed-by: Yake Yang <yake.yang@mediatek.com> Signed-off-by: Yake Yang <yake.yang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Diffstat (limited to 'drivers/bluetooth')
-rw-r--r--drivers/bluetooth/btmtksdio.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index d6700efcfe8c..f9a3444753c2 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -1282,6 +1282,13 @@ err:
hci_reset_dev(hdev);
}
+static bool btmtksdio_sdio_inband_wakeup(struct hci_dev *hdev)
+{
+ struct btmtksdio_dev *bdev = hci_get_drvdata(hdev);
+
+ return device_may_wakeup(bdev->dev);
+}
+
static bool btmtksdio_sdio_wakeup(struct hci_dev *hdev)
{
struct btmtksdio_dev *bdev = hci_get_drvdata(hdev);
@@ -1349,6 +1356,14 @@ static int btmtksdio_probe(struct sdio_func *func,
hdev->shutdown = btmtksdio_shutdown;
hdev->send = btmtksdio_send_frame;
hdev->wakeup = btmtksdio_sdio_wakeup;
+ /*
+ * If SDIO controller supports wake on Bluetooth, sending a wakeon
+ * command is not necessary.
+ */
+ if (device_can_wakeup(func->card->host->parent))
+ hdev->wakeup = btmtksdio_sdio_inband_wakeup;
+ else
+ hdev->wakeup = btmtksdio_sdio_wakeup;
hdev->set_bdaddr = btmtk_set_bdaddr;
SET_HCIDEV_DEV(hdev, &func->dev);