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From:   Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
To:     marcel@holtman.org, linux-bluetooth@vger.kernel.org
Cc:     alainm@chromium.org, chromeos-bluetooth-upstreaming@chromium.org,
        mka@chromium.org, dianders@chromium.org, linux-pm@vger.kernel.org,
        Abhishek Pandit-Subedi <abhishekpandit@chromium.org>,
        Johan Hedberg <johan.hedberg@gmail.com>,
        Marcel Holtmann <marcel@holtmann.org>,
        linux-kernel@vger.kernel.org
Subject: [PATCH 2/3] Bluetooth: btmrvl_sdio: Implement prevent_wake
Date:   Wed, 10 Jun 2020 18:53:54 -0700
Message-Id: <20200610185214.2.I317eb69189c90ed26ba88e996f7df59ee62c2495@changeid>
In-Reply-To: <20200611015355.186666-1-abhishekpandit@chromium.org>
References: <20200611015355.186666-1-abhishekpandit@chromium.org>
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Sender: linux-bluetooth-owner@vger.kernel.org
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Use the parent device's power/wakeup to control whether we support
remote wake. If remote wakeup is disabled, Bluetooth will not enable
scanning for incoming connections.

Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
---

 drivers/bluetooth/btmrvl_main.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/bluetooth/btmrvl_main.c b/drivers/bluetooth/btmrvl_main.c
index 47e450903af423..8b9d78ce6bb29e 100644
--- a/drivers/bluetooth/btmrvl_main.c
+++ b/drivers/bluetooth/btmrvl_main.c
@@ -587,6 +587,14 @@ static int btmrvl_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
 	return 0;
 }
 
+static bool btmrvl_prevent_wake(struct hci_dev *hdev)
+{
+	struct btmrvl_private *priv = hci_get_drvdata(hdev);
+	struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
+
+	return !device_may_wakeup(&card->func->dev);
+}
+
 /*
  * This function handles the event generated by firmware, rx data
  * received from firmware, and tx data sent from kernel.
@@ -688,6 +696,7 @@ int btmrvl_register_hdev(struct btmrvl_private *priv)
 	hdev->send  = btmrvl_send_frame;
 	hdev->setup = btmrvl_setup;
 	hdev->set_bdaddr = btmrvl_set_bdaddr;
+	hdev->prevent_wake = btmrvl_prevent_wake;
 	SET_HCIDEV_DEV(hdev, &card->func->dev);
 
 	hdev->dev_type = priv->btmrvl_dev.dev_type;
-- 
2.27.0.278.ge193c7cf3a9-goog