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    Subject[PATCH 5.10 020/102] USB: serial: option: add Quectel RM500K module support
    Date
    From: Macpaul Lin <macpaul.lin@mediatek.com>

    commit 15b694e96c31807d8515aacfa687a1e8a4fbbadc upstream.

    Add usb product id of the Quectel RM500K module.

    RM500K provides 2 mandatory interfaces to Linux host after enumeration.
    - /dev/ttyUSB5: this is a serial interface for control path. User needs
    to write AT commands to this device node to query status, set APN,
    set PIN code, and enable/disable the data connection to 5G network.
    - ethX: this is the data path provided as a RNDIS devices. After the
    data connection has been established, Linux host can access 5G data
    network via this interface.

    "RNDIS": RNDIS + ADB + AT (/dev/ttyUSB5) + MODEM COMs

    usb-devices output for 0x7001:
    T: Bus=05 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 3 Spd=480 MxCh= 0
    D: Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1
    P: Vendor=2c7c ProdID=7001 Rev=00.01
    S: Manufacturer=MediaTek Inc.
    S: Product=USB DATA CARD
    S: SerialNumber=869206050009672
    C: #Ifs=10 Cfg#= 1 Atr=a0 MxPwr=500mA
    I: If#= 0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=02 Prot=ff Driver=rndis_host
    E: Ad=82(I) Atr=03(Int.) MxPS= 64 Ivl=125us
    I: If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=rndis_host
    E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I: If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
    E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I: If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
    E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I: If#= 4 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
    E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I: If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none)
    E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I: If#= 6 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
    E: Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E: Ad=87(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I: If#= 7 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
    E: Ad=07(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E: Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I: If#= 8 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
    E: Ad=08(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E: Ad=89(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I: If#= 9 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
    E: Ad=09(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E: Ad=8a(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms

    Co-developed-by: Ballon Shi <ballon.shi@quectel.com>
    Signed-off-by: Ballon Shi <ballon.shi@quectel.com>
    Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
    Cc: stable@vger.kernel.org
    Signed-off-by: Johan Hovold <johan@kernel.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    drivers/usb/serial/option.c | 2 ++
    1 file changed, 2 insertions(+)

    --- a/drivers/usb/serial/option.c
    +++ b/drivers/usb/serial/option.c
    @@ -257,6 +257,7 @@ static void option_instat_callback(struc
    #define QUECTEL_PRODUCT_RM500Q 0x0800
    #define QUECTEL_PRODUCT_EC200S_CN 0x6002
    #define QUECTEL_PRODUCT_EC200T 0x6026
    +#define QUECTEL_PRODUCT_RM500K 0x7001

    #define CMOTECH_VENDOR_ID 0x16d8
    #define CMOTECH_PRODUCT_6001 0x6001
    @@ -1150,6 +1151,7 @@ static const struct usb_device_id option
    .driver_info = ZLP },
    { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200S_CN, 0xff, 0, 0) },
    { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200T, 0xff, 0, 0) },
    + { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM500K, 0xff, 0x00, 0x00) },

    { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6001) },
    { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CMU_300) },

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