Hi Bing,
> Move initialization code to hdev's setup handler. New flag
> setup_done is added to make sure that initialization is done only
> during driver load time. Our firmware doesn't expect
> re-initialization later when interface is re-enabled.
>
> Signed-off-by: Amitkumar Karwar <akarwar@xxxxxxxxxxx>
> Signed-off-by: Bing Zhao <bzhao@xxxxxxxxxxx>
> ---
> v5: make use of hdev's setup handler (Marcel Holtmann)
>
> drivers/bluetooth/btmrvl_drv.h | 1 +
> drivers/bluetooth/btmrvl_main.c | 23 +++++++++++++++++++++--
> drivers/bluetooth/btmrvl_sdio.c | 6 ------
> 3 files changed, 22 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/bluetooth/btmrvl_drv.h b/drivers/bluetooth/btmrvl_drv.h
> index 27068d1..e776b8b 100644
> --- a/drivers/bluetooth/btmrvl_drv.h
> +++ b/drivers/bluetooth/btmrvl_drv.h
> @@ -68,6 +68,7 @@ struct btmrvl_adapter {
> wait_queue_head_t cmd_wait_q;
> u8 cmd_complete;
> bool is_suspended;
> + bool setup_done;
> };
>
> struct btmrvl_private {
> diff --git a/drivers/bluetooth/btmrvl_main.c b/drivers/bluetooth/btmrvl_main.c
> index 9a9f518..e352f8e 100644
> --- a/drivers/bluetooth/btmrvl_main.c
> +++ b/drivers/bluetooth/btmrvl_main.c
> @@ -479,6 +479,27 @@ static int btmrvl_open(struct hci_dev *hdev)
> return 0;
> }
>
> +static int btmrvl_setup(struct hci_dev *hdev)
> +{
> + struct btmrvl_private *priv = hci_get_drvdata(hdev);
> + struct btmrvl_adapter *adapter = priv->adapter;
> +
> + if (adapter->setup_done)
> + return 0;
> +
> + btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ);
> +
> + priv->btmrvl_dev.psmode = 1;
> + btmrvl_enable_ps(priv);
> +
> + priv->btmrvl_dev.gpio_gap = 0xffff;
> + btmrvl_send_hscfg_cmd(priv);
> +
> + adapter->setup_done = true;
> +
> + return 0;
> +}
> +
> /*
> * This function handles the event generated by firmware, rx data
> * received from firmware, and tx data sent from kernel.
> @@ -572,8 +592,7 @@ int btmrvl_register_hdev(struct btmrvl_private *priv)
> hdev->flush = btmrvl_flush;
> hdev->send = btmrvl_send_frame;
> hdev->ioctl = btmrvl_ioctl;
> -
> - btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ);
> + hdev->setup = btmrvl_setup;
just to make sure you guys understand how ->setup() works. It is only called once. Bringing the adapter down and up again does not call ->setup() a second time. So do you guys need this setup_done variable and if so, then you need to be a bit more verbose and help me understand why.
Regards
Marcel
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