Hi Luiz, Please disregard the patch. We will proceed with the journey using the latest patchset I provided in the following link https://lists.infradead.org/pipermail/linux-mediatek/2024-May/079017.html Sean On Wed, Apr 17, 2024 at 2:18 PM Luiz Augusto von Dentz <luiz.dentz@xxxxxxxxx> wrote: > > Hi, > > On Fri, Apr 12, 2024 at 5:57 AM Hao Qin <hao.qin@xxxxxxxxxxxx> wrote: > > > > Add support for auto reverting MT7922 during reset process. > > Need some more information of what auto reverting means in this > context and what problem does it solves? > > > > > Signed-off-by: Hao Qin <hao.qin@xxxxxxxxxxxx> > > --- > > drivers/bluetooth/btusb.c | 14 +++++++++++++- > > 1 file changed, 13 insertions(+), 1 deletion(-) > > > > diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c > > index 4c0cc13adb47..0ad96ec8d31d 100644 > > --- a/drivers/bluetooth/btusb.c > > +++ b/drivers/bluetooth/btusb.c > > @@ -3032,7 +3032,16 @@ static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) > > usb_kill_anchored_urbs(&data->tx_anchor); > > mediatek = hci_get_priv(hdev); > > > > - if (mediatek->dev_id == 0x7925) { > > + if (mediatek->dev_id == 0x7922) { > > + btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val); > > + val |= 0x00002020; > > + btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, val); > > + btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001); > > + btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val); > > + val |= BIT(0); > > + btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, val); > > + msleep(100); > > + } else if (mediatek->dev_id == 0x7925) { > > btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); > > val |= (1 << 5); > > btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); > > @@ -3072,6 +3081,9 @@ static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) > > if (err < 0) > > bt_dev_err(hdev, "Reset timeout"); > > > > + if (mediatek->dev_id == 0x7922) > > + btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF); > > + > > btusb_mtk_id_get(data, 0x70010200, &val); > > if (!val) > > bt_dev_err(hdev, "Can't get device id, subsys reset fail."); > > -- > > 2.18.0 > > > > > -- > Luiz Augusto von Dentz >
