| Message ID | 20220324124402.3631379-3-daniel@0x0f.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add support for MStar MSC313 uarts | expand |
On Thu, Mar 24, 2022 at 09:44:00PM +0900, Daniel Palmer wrote: > The version of the IP used on the MStar MSC313 and later > MStar and SigmaStar SoCs has the USR register at a different > location. Add a quirk for this. I'm fine with the change if it goes before [1]. Otherwise you will need to rebase. [1]: https://lore.kernel.org/linux-serial/20220317174627.360815-1-miquel.raynal@bootlin.com/
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c index 1769808031c5..01737e5706a5 100644 --- a/drivers/tty/serial/8250/8250_dw.c +++ b/drivers/tty/serial/8250/8250_dw.c @@ -416,6 +416,10 @@ static void dw8250_quirks(struct uart_port *p, struct dw8250_data *data) p->serial_out = dw8250_serial_out38x; if (of_device_is_compatible(np, "starfive,jh7100-uart")) p->set_termios = dw8250_do_set_termios; + if (of_device_is_compatible(np, "mstar,msc313-uart")) { + data->usr_reg = 0x7; + data->skip_autocfg = true; + } } else if (acpi_dev_present("APMC0D08", NULL, -1)) { p->iotype = UPIO_MEM32; @@ -699,6 +703,7 @@ static const struct of_device_id dw8250_of_match[] = { { .compatible = "marvell,armada-38x-uart" }, { .compatible = "renesas,rzn1-uart" }, { .compatible = "starfive,jh7100-uart" }, + { .compatible = "mstar,msc313-uart" }, { /* Sentinel */ } }; MODULE_DEVICE_TABLE(of, dw8250_of_match);
The version of the IP used on the MStar MSC313 and later MStar and SigmaStar SoCs has the USR register at a different location. Add a quirk for this. Signed-off-by: Daniel Palmer <daniel@0x0f.com> --- drivers/tty/serial/8250/8250_dw.c | 5 +++++ 1 file changed, 5 insertions(+)