On Sun, Dec 12, 2021 at 10:21:28PM +0900, Magnus Damm wrote: > From: Magnus Damm <damm+renesas@xxxxxxxxxxxxx> > > Allow serdev device drivers get notified by hardware errors such as BREAK, > FRAME, PARITY and OVERRUN. > > With this patch, in the event of an error detected in the UART device driver > the serdev_device_driver will get the newly introduced ->error() callback > invoked if serdev_device_set_error_mask() has previously been used to enable > the type of error. The errors are taken straight from the TTY layer and fed > into the serdev_device_driver after filtering out only enabled errors. > > Without this patch the hardware errors never reach the serdev_device_driver. > > Signed-off-by: Magnus Damm <damm+renesas@xxxxxxxxxxxxx> > --- > > Applies to linux-5.16-rc4 > > Change since V1: > - Use __set_bit() instead of set_bit() in ttyport_receive_buf() > - Switch to assign_bit() in ttyport_set_error_mask() > > Thanks to Geert for feedback! > > The following prototype patch is using serdev error notifications: > [PATCH] r8a77995 Draak SCIF0 LED and KEY Serdev prototype V2 Looks good, now applied to my tty tree. thanks, greg k-h
