linux-kernel - Re: [PATCH v3] Bluetooth: hci_qca: Add poweroff support during hci down for wcn3990

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Date:   Thu, 27 Sep 2018 12:30:47 +0200
From:   Marcel Holtmann <marcel@...tmann.org>
To:     Balakrishna Godavarthi <bgodavar@...eaurora.org>
Cc:     Johan Hedberg <johan.hedberg@...il.com>, mka@...omium.org,
        linux-kernel@...r.kernel.org, linux-bluetooth@...r.kernel.org,
        hemantg@...eaurora.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v3] Bluetooth: hci_qca: Add poweroff support during hci
 down for wcn3990

Hi Balakrishna,

> This patch enables power off support for hci down and power on support
> for hci up. As wcn3990 power sources are ignited by regulators, we will
> turn off them during hci down, i.e. an complete power off of wcn3990.
> So while hci up, will call vendor setup which will turn on the regulators,
> requests BT chip version and download the firmware.
> 
> Signed-off-by: Balakrishna Godavarthi <bgodavar@...eaurora.org>
> ---
> v3:
>  * addressed reviewer comments.
> v2:
>   * Removed vendor specific hdev->open and close functions.
>   * Added hdev->shutdown function to turn off the regs.
> 
> v1:
>   * initial patch.
> ---
> drivers/bluetooth/hci_qca.c | 33 +++++++++++++++++++++++++++++++++
> 1 file changed, 33 insertions(+)

patch has been applied to bluetooth-next tree.

Regards

Marcel