On Wed, Sep 29, 2021 at 05:00:46PM +0530, LakshmiPraveen Kopparthi wrote: > PCI1XXXX UART is a PCIe to UART module. It has 5 SKUs, each is > differentiated by the device IDs in the PCIe config space. Each > SKU supports a maximum of 4 UART ports(UART0,1,2,3) with fixed > offests.Based on the sub device ID, the combinations of UART > ports shall be enumerated. > > The UART port is compatible with the standard 16550A, but has some > modifications.The modifications includes a change in the baud rate > settings,auto control of RTS signal for RS485 feature and an > increase of TX & RX FIFO size to 256 Bytes.Also, it has a capability > to wake up the CPU. > > These patches adds the support to enumerate and exercise all the > combinations of UART ports in all the SKUs. > drivers/tty/serial/8250/8250_pci.c | 384 ++++++++++++++++++++++++++++ Please, do not add this to 8250_pci.c. Use separate quirk driver as it's done in plenty of examples: 8250_lpss.c, 8250_mid.c, 8250_exar.c, ... -- With Best Regards, Andy Shevchenko
