Re: [PATCH 0/3] USB-Serial serdev support

Marco Felsch
2024-10-01T07:25:07Z

Hi,

gentle ping as this is series is two months old now.

Regards,
Marco

On 24-08-07, Marco Felsch wrote:
> Hi,
>
> this patchset is based on Johan's patches [1] but dropped the need of
> the special 'serial' of-node [2].
>
> With the patches in place and the usb hierarchy described in properly we
> can use serdev on-top of usb-serial. The below example adds the support
> for the following hierarchy:
> - host->usb-hub->ftdi-usb-uart->bt/wlan-module:
>
> &usb_dwc3_1 {
> dr_mode = "host";
> status = "okay";
>
> hub@1 {
> compatible = "usb424,2514";
> reg = <1>;
>
> vdd-supply = <&reg>;
> reset-gpios = <&gpio4 5 GPIO_ACTIVE_LOW>;
>
> #address-cells = <1>;
> #size-cells = <0>;
>
> device@1 {
> compatible = "usb403,6010";
> reg = <1>;
>
> #address-cells = <2>;
> #size-cells = <0>;
>
> interface@0 {
> compatible = "usbif403,6010.config1.0";
> reg = <0 1>;
>
> #address-cells = <1>;
> #size-cells = <0>;
>
> bluetooth {
> compatible = "nxp,88w8987-bt";
> fw-init-baudrate = <3000000>;
> };
> };
> };
> };
> };
>
> If no serdev node is found the usb-serial is exposed as usual and can be
> accessed via /dev/ttyUSBx.
>
> Regards,
> Marco
>
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial.git/log/?h=usb-serial-of
> [2] https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial.git/commit/?h=usb-serial-of&id=b19239022c92567a6a9ed40e8522e84972b0997f
>
> Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
> ---
> Marco Felsch (3):
> serdev: ttyport: make use of tty_kopen_exclusive
> USB: serial: cosmetic cleanup <space><tab> mix
> USB: serial: enable serdev support
>
> drivers/tty/serdev/serdev-ttyport.c | 9 ++++++---
> drivers/usb/serial/bus.c | 10 ++++++----
> 2 files changed, 12 insertions(+), 7 deletions(-)
> ---
> base-commit: 0c3836482481200ead7b416ca80c68a29cfdaabd
> change-id: 20240807-v6-10-topic-usb-serial-serdev-83a7f8f86432
>
> Best regards,
> --
> Marco Felsch <m.felsch@pengutronix.de>
>
>