Hi, On Fri, May 01, 2020 at 12:19:22AM +0530, mani@xxxxxxxxxx wrote: > From: Manivannan Sadhasivam <mani@xxxxxxxxxx> > > 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 >
