We will upstream these patches in the next couple months, but you know the linux review process is uncontrollable.
On Tue, Mar 12, 2024 at 9:28 PM Andre Heinemans <andre.heinem...@nxp.com> wrote: > Thanks! I got it to work on the imx8mp. Do you know if there are any plans > to upstream this driver to mainline linux? > > Kind regards, > Andre > > From: Bowen Wang <bowenwa...@gmail.com> > Sent: Tuesday, 12 March 2024 05:36 > To: dev@nuttx.apache.org > Subject: [EXT] Re: uart rpmsg driver compatibility > > Hi, > > The attachments are the rpmsg-tty patches based on linux LTS 5.15. > If you have any problems, feel free to contact me. > > Regards, > Bowen Wang > > Xiang Xiao <mailto:xiaoxiang781...@gmail.com> 于2024年3月11日周一 23:43写道： > On Mon, Mar 11, 2024 at 11:13 PM Andre Heinemans <mailto: > andre.heinem...@nxp.com> > wrote: > > > Hi, > > > > Does the NuttX uart_rpmsg.c driver have a Linux counterpart to interact > > with? > > > Yes, the old version is here: > > https://lore.kernel.org/lkml/CAH2Cfb87Wacgsh=xz9h9kgwygbkxnbdbcdj4w3ups2likbt...@mail.gmail.com/ > > > > I want to achieve a virtual uart connection through rpmsg on an imx8mp > > between NuttX (m7) and Linux (a53). > > The tty_rpmsg.c driver in mainline linux does not seem compatible as it > > read and writes the raw data directly from the rpmsg buffers. > > > The mainline version comes from ST developer, which lacks of the flow > control and very easy to lose the data with the fast transaction. > > > > Whereas the NuttX driver uses a struct ‘uart_rpmsg_write_s’ which > contains > > the raw data in one of its fields. > > > > > We renewed the rpmsg tty driver on top of Linux 5.14 recently, which works > perfectly with the NuttX mainline rpmsg_uart driver. > Bowen could share the implementation tomorrow. > > > > > Kind regards, > > Andre > > >
