linux-kernel - Re: [PATCH v3 0/2] Add support for MaxLinear/Exar USB to serial converters

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Date:   Sat, 16 May 2020 12:36:17 +0530
From:   Manivannan Sadhasivam <mani@...nel.org>
To:     johan@...nel.org, gregkh@...uxfoundation.org
Cc:     linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        patong.mxl@...il.com
Subject: Re: [PATCH v3 0/2] Add support for MaxLinear/Exar USB to serial
 converters

Hi,

On Fri, May 01, 2020 at 12:19:22AM +0530, mani@...nel.org wrote:
> From: Manivannan Sadhasivam <mani@...nel.org>
> 
> Hello,
> 
> This series adds support for MaxLinear/Exar USB to serial converters.
> This driver only supports XR21V141X series but it can easily be extended
> to other series in future.
> 
> This driver is inspired from the initial one submitted by Patong Yang:
> 
> https://patchwork.kernel.org/patch/10543261/
> 
> While the initial driver was a custom tty USB driver exposing whole
> new serial interface ttyXRUSBn, this version is completely based on USB
> serial core thus exposing the interfaces as ttyUSBn. This will avoid
> the overhead of exposing a new USB serial interface which the userspace
> tools are unaware of.
> 
> This series has been tested with Hikey970 board hosting XR21V141X chip.
> 

Any update on this series?

Thanks,
Mani

> Thanks,
> Mani
> 
> Changes in v3:
> 
> * Dropped the check for PID and also the reg_width property.
> 
> Changes in v2:
> 
> * Dropped the code related to handling variable register size. It's all u8 now.
> * Dropped the header file and moved the contents to driver itself.
> * Added Linus's reviewed-by tag for gpiochip patch.
> * Added PID to gpiochip label
> * Dropped gpiochip for interface 0
> 
> Manivannan Sadhasivam (2):
>   usb: serial: Add MaxLinear/Exar USB to Serial driver
>   usb: serial: xr_serial: Add gpiochip support
> 
>  drivers/usb/serial/Kconfig     |   9 +
>  drivers/usb/serial/Makefile    |   1 +
>  drivers/usb/serial/xr_serial.c | 821 +++++++++++++++++++++++++++++++++
>  3 files changed, 831 insertions(+)
>  create mode 100644 drivers/usb/serial/xr_serial.c
> 
> -- 
> 2.17.1
>