diff mbox series

[09/12] USB: serial: xr: add support for XR22801, XR22802, XR22804

Message ID 20210412095557.1213-10-johan@kernel.org (mailing list archive)
State Accepted
Commit 6da99f9de5feb25b01cbe37fdb15f26a2d7d64a9
Headers show
Series USB: serial: xr: add support for more device types | expand

Commit Message

Johan Hovold April 12, 2021, 9:55 a.m. UTC
The XR22801, XR22802 and XR22804 are compound devices with an embedded
hub and up to seven downstream USB devices including one, two or four
UARTs respectively.

The UART function is similar to XR21B142X but most registers are offset
by 0x40, the register requests are different and are directed at the
device rather than interface, and 5 and 6-bit words are not supported.

Signed-off-by: Johan Hovold <johan@kernel.org>
---
 drivers/usb/serial/xr_serial.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
diff mbox series

Patch

diff --git a/drivers/usb/serial/xr_serial.c b/drivers/usb/serial/xr_serial.c
index 46e5e1b2f3c0..14dbda13ab4d 100644
--- a/drivers/usb/serial/xr_serial.c
+++ b/drivers/usb/serial/xr_serial.c
@@ -134,6 +134,7 @@  enum xr_type_id {
 	XR21V141X,
 	XR21B142X,
 	XR21B1411,
+	XR2280X,
 	XR_TYPE_COUNT,
 };
 
@@ -198,6 +199,24 @@  static const struct xr_type xr_types[] = {
 		.gpio_status	= 0xc10,
 		.custom_driver	= 0x20d,
 	},
+	[XR2280X] = {
+		.reg_width	= 16,
+		.reg_recipient	= USB_RECIP_DEVICE,
+		.set_reg	= 0x05,
+		.get_reg	= 0x05,
+
+		.uart_enable	= 0x40,
+		.flow_control	= 0x46,
+		.xon_char	= 0x47,
+		.xoff_char	= 0x48,
+		.tx_break	= 0x4a,
+		.gpio_mode	= 0x4c,
+		.gpio_direction	= 0x4d,
+		.gpio_set	= 0x4e,
+		.gpio_clear	= 0x4f,
+		.gpio_status	= 0x50,
+		.custom_driver	= 0x81,
+	},
 };
 
 struct xr_data {
@@ -906,6 +925,10 @@  static void xr_port_remove(struct usb_serial_port *port)
 	.driver_info = (type)
 
 static const struct usb_device_id id_table[] = {
+	{ XR_DEVICE(0x04e2, 0x1400, XR2280X) },
+	{ XR_DEVICE(0x04e2, 0x1401, XR2280X) },
+	{ XR_DEVICE(0x04e2, 0x1402, XR2280X) },
+	{ XR_DEVICE(0x04e2, 0x1403, XR2280X) },
 	{ XR_DEVICE(0x04e2, 0x1410, XR21V141X) },
 	{ XR_DEVICE(0x04e2, 0x1411, XR21B1411) },
 	{ XR_DEVICE(0x04e2, 0x1412, XR21V141X) },