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Re: [PATCH 1/3] mfd: Add support for FTDI FT232H devices

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On Fri, 07 Jul 2017 09:48:48 +0200
Bjørn Mork bjorn@mork.no wrote:

>[adding Johan on the CC list]
>
>Anatolij Gustschin <agust@denx.de> writes:
>
>> +static struct usb_device_id ftdi_mfd_table[] = {
>> +	{ USB_DEVICE(0x0403, 0x6014) },
>> +	{}
>> +};
>> +MODULE_DEVICE_TABLE(usb, ftdi_mfd_table);  
>
>This device ID is currently handled by the ftdi_sio driver, so I believe
>you at least have to explain how you intend these two drivers to
>cooperate...

these drivers cannot cooperate, the different ftdi function modes
use same device pins as in UART mode. So, you either can use the
device in UART interface mode or in some different mode. I do not
load the ftdi_sio module or do unbind the USB device from the
ftdio_sio driver and bind it to the mfd driver, e.g.:

  sh -c "echo -n "3-2:1.0" > /sys/bus/usb/drivers/ftdi_sio/unbind"
  sh -c "echo -n "3-2:1.0" > /sys/bus/usb/drivers/ftdi-mfd/bind"

thanks,

Anatolij

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[PATCH 0/3] FPGA Manager support for FPP via FT232H FT245-FIFO Anatolij Gustschin <agust@denx.de> - 2017-07-06 22:50 +0200
  [PATCH 1/3] mfd: Add support for FTDI FT232H devices Anatolij Gustschin <agust@denx.de> - 2017-07-06 22:50 +0200
    Re: [PATCH 1/3] mfd: Add support for FTDI FT232H devices Bjørn Mork <bjorn@mork.no> - 2017-07-07 09:50 +0200
      Re: [PATCH 1/3] mfd: Add support for FTDI FT232H devices Anatolij Gustschin <agust@denx.de> - 2017-07-07 12:00 +0200
        Re: [PATCH 1/3] mfd: Add support for FTDI FT232H devices Johan Hovold <johan@kernel.org> - 2017-07-10 14:40 +0200
          Re: [PATCH 1/3] mfd: Add support for FTDI FT232H devices Anatolij Gustschin <agust@denx.de> - 2017-07-11 09:00 +0200
            Re: [PATCH 1/3] mfd: Add support for FTDI FT232H devices Johan Hovold <johan@kernel.org> - 2017-07-12 11:00 +0200
              Re: [PATCH 1/3] mfd: Add support for FTDI FT232H devices Bjørn Mork <bjorn@mork.no> - 2017-07-12 11:20 +0200
              Re: [PATCH 1/3] mfd: Add support for FTDI FT232H devices Anatolij Gustschin <agust@denx.de> - 2017-07-13 18:40 +0200
    Re: [PATCH 1/3] mfd: Add support for FTDI FT232H devices Johan Hovold <johan@kernel.org> - 2017-07-10 15:00 +0200
  [PATCH 2/3] gpio: Add FT232H CBUS GPIO driver Anatolij Gustschin <agust@denx.de> - 2017-07-06 22:50 +0200
  [PATCH 3/3] fpga manager: Add FT232H driver for Altera FPP Anatolij Gustschin <agust@denx.de> - 2017-07-06 23:00 +0200
    RE: [PATCH 3/3] fpga manager: Add FT232H driver for Altera FPP David Laight <David.Laight@ACULAB.COM> - 2017-07-07 11:40 +0200

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