diff mbox series

[v2,6/7] USB: serial: xr: add support for XR2280X devices

Message ID 385b5ba7739fd1d67b9b2b8fd70187ab19e8d00e.1616571453.git.mchehab+huawei@kernel.org
State New
Headers show
Series Add support for the other MaxLinear/Exar UARTs | expand

Commit Message

Mauro Carvalho Chehab March 24, 2021, 7:41 a.m. UTC 
There's nothing special on those devices either. They just
use a different set of registers.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 drivers/usb/serial/xr_serial.c | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

Comments

Johan Hovold March 30, 2021, 3:08 p.m. UTC | #1 
On Wed, Mar 24, 2021 at 08:41:10AM +0100, Mauro Carvalho Chehab wrote:
> There's nothing special on those devices either. They just

> use a different set of registers.


This device also use 16-bit addresses and doesn't support CS5 and CS6.

Johan
diff mbox series

Patch

diff --git a/drivers/usb/serial/xr_serial.c b/drivers/usb/serial/xr_serial.c
index b1044dd3e994..72365ffbc1b8 100644
--- a/drivers/usb/serial/xr_serial.c
+++ b/drivers/usb/serial/xr_serial.c
@@ -99,6 +99,7 @@  struct xr_txrx_clk_mask {
 #define VIA_CDC_REGISTER		-1
 
 enum xr_model {
+	XR2280X,
 	XR21B1411,
 	XR21V141X,
 	XR21B142X,
@@ -133,6 +134,30 @@  enum xr_hal_type {
 };
 
 static const int xr_hal_table[MAX_XR_MODELS][MAX_XR_HAL_TYPE] = {
+	[XR2280X] = {
+		[REG_ENABLE] =				0x40,
+		[REG_FORMAT] =				0x45,
+		[REG_FLOW_CTRL] =			0x46,
+		[REG_XON_CHAR] =			0x47,
+		[REG_XOFF_CHAR] =			0x48,
+		[REG_TX_BREAK] =			0x4a,
+		[REG_RS485_DELAY] =			0x4b,
+		[REG_GPIO_MODE] =			0x4c,
+		[REG_GPIO_DIR] =			0x4d,
+		[REG_GPIO_SET] =			0x4e,
+		[REG_GPIO_CLR] =			0x4f,
+		[REG_GPIO_STATUS] =			0x50,
+		[REG_GPIO_INT_MASK] =			0x51,
+		[REG_CUSTOMIZED_INT] =			0x52,
+		[REG_GPIO_PULL_UP_ENABLE] =		0x54,
+		[REG_GPIO_PULL_DOWN_ENABLE] =		0x55,
+		[REG_LOOPBACK] =			0x56,
+		[REG_LOW_LATENCY] =			0x66,
+		[REG_CUSTOM_DRIVER] =			0x81,
+
+		[REQ_SET] =				5,
+		[REQ_GET] =				5,
+	},
 	[XR21B1411] = {
 		[REG_ENABLE] =				0xc00,
 		[REG_FORMAT] =				VIA_CDC_REGISTER,
@@ -215,6 +240,7 @@  static int xr_set_reg(struct usb_serial_port *port, u8 block, u8 reg, u8 val)
 	int ret;
 
 	switch (port_priv->model) {
+	case XR2280X:
 	case XR21B1411:
 		break;
 	case XR21V141X:
@@ -253,6 +279,7 @@  static int xr_get_reg(struct usb_serial_port *port, u8 block, u8 reg, u8 *val)
 		return -ENOMEM;
 
 	switch (port_priv->model) {
+	case XR2280X:
 	case XR21B1411:
 		break;
 	case XR21V141X:
@@ -902,6 +929,11 @@  static void xr_disconnect(struct usb_serial *serial)
 }
 
 static const struct usb_device_id id_table[] = {
+	{ USB_DEVICE(0x04e2, 0x1400), .driver_info = XR2280X},
+	{ USB_DEVICE(0x04e2, 0x1401), .driver_info = XR2280X},
+	{ USB_DEVICE(0x04e2, 0x1402), .driver_info = XR2280X},
+	{ USB_DEVICE(0x04e2, 0x1403), .driver_info = XR2280X},
+
 	{ USB_DEVICE(0x04e2, 0x1410), .driver_info = XR21V141X},
 	{ USB_DEVICE(0x04e2, 0x1411), .driver_info = XR21B1411},
 	{ USB_DEVICE(0x04e2, 0x1412), .driver_info = XR21V141X},