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Subject[PATCH 2/2 v4] USB: serial: mos7840: Add a product ID for the new product
Date
From: JackyChou <jackychou@asix.com.tw>

Add a new PID 0x7843 to the driver.
Let the new products be able to set up 3 serial ports with the driver.

Signed-off-by: JackyChou <jackychou@asix.com.tw>
---
drivers/usb/serial/mos7840.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 92ab68ef08ab..b6e7b55fcb7c 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -94,6 +94,7 @@
/* The native mos7840/7820 component */
#define USB_VENDOR_ID_MOSCHIP 0x9710
#define MOSCHIP_DEVICE_ID_7840 0x7840
+#define MOSCHIP_DEVICE_ID_7843 0x7843
#define MOSCHIP_DEVICE_ID_7820 0x7820
#define MOSCHIP_DEVICE_ID_7810 0x7810
/* The native component can have its vendor/device id's overridden
@@ -176,6 +177,7 @@ enum mos7840_flag {

static const struct usb_device_id id_table[] = {
{USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7840)},
+ {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7843)},
{USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7820)},
{USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7810)},
{USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_2)},
@@ -2033,7 +2035,8 @@ static int mos7840_probe(struct usb_serial *serial,
int device_type;

if (product == MOSCHIP_DEVICE_ID_7810 ||
- product == MOSCHIP_DEVICE_ID_7820) {
+ product == MOSCHIP_DEVICE_ID_7820 ||
+ product == MOSCHIP_DEVICE_ID_7843) {
device_type = product;
goto out;
}
@@ -2067,7 +2070,10 @@ static int mos7840_calc_num_ports(struct usb_serial *serial,
int device_type = (unsigned long)usb_get_serial_data(serial);
int num_ports;

- num_ports = (device_type >> 4) & 0x000F;
+ if (device_type == MOSCHIP_DEVICE_ID_7843)
+ num_ports = 3;
+ else
+ num_ports = (device_type >> 4) & 0x000F;

/*
* num_ports is currently never zero as device_type is one of
--
2.17.1
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