8250_pci: Adds support for the WCH CH355 4S card

Adds support for the WCH CH355 4S card in the 8250 serial driver.

Signed-off-by: Alexandr Petrenko <petrenkoas83@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 3d6287a..20ebaea 100644 (file)
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1865,6 +1865,16 @@ pci_wch_ch353_setup(struct serial_private *priv,
 }
 
 static int
+pci_wch_ch355_setup(struct serial_private *priv,
+               const struct pciserial_board *board,
+               struct uart_8250_port *port, int idx)
+{
+       port->port.flags |= UPF_FIXED_TYPE;
+       port->port.type = PORT_16550A;
+       return pci_default_setup(priv, board, port, idx);
+}
+
+static int
 pci_wch_ch38x_setup(struct serial_private *priv,
                    const struct pciserial_board *board,
                    struct uart_8250_port *port, int idx)
@@ -1915,6 +1925,7 @@ pci_wch_ch38x_setup(struct serial_private *priv,
 #define PCI_DEVICE_ID_WCH_CH353_2S1PF  0x5046
 #define PCI_DEVICE_ID_WCH_CH353_1S1P   0x5053
 #define PCI_DEVICE_ID_WCH_CH353_2S1P   0x7053
+#define PCI_DEVICE_ID_WCH_CH355_4S     0x7173
 #define PCI_VENDOR_ID_AGESTAR          0x5372
 #define PCI_DEVICE_ID_AGESTAR_9375     0x6872
 #define PCI_VENDOR_ID_ASIX             0x9710
@@ -2618,6 +2629,14 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
                .subdevice      = PCI_ANY_ID,
                .setup          = pci_wch_ch353_setup,
        },
+       /* WCH CH355 4S card (16550 clone) */
+       {
+               .vendor         = PCI_VENDOR_ID_WCH,
+               .device         = PCI_DEVICE_ID_WCH_CH355_4S,
+               .subvendor      = PCI_ANY_ID,
+               .subdevice      = PCI_ANY_ID,
+               .setup          = pci_wch_ch355_setup,
+       },
        /* WCH CH382 2S card (16850 clone) */
        {
                .vendor         = PCIE_VENDOR_ID_WCH,
@@ -3812,6 +3831,7 @@ static const struct pci_device_id blacklist[] = {
        /* multi-io cards handled by parport_serial */
        { PCI_DEVICE(0x4348, 0x7053), }, /* WCH CH353 2S1P */
        { PCI_DEVICE(0x4348, 0x5053), }, /* WCH CH353 1S1P */
+       { PCI_DEVICE(0x4348, 0x7173), }, /* WCH CH355 4S */
        { PCI_DEVICE(0x1c00, 0x3250), }, /* WCH CH382 2S1P */
        { PCI_DEVICE(0x1c00, 0x3470), }, /* WCH CH384 4S */
 
@@ -5567,6 +5587,10 @@ static struct pci_device_id serial_pci_tbl[] = {
                PCI_ANY_ID, PCI_ANY_ID,
                0, 0, pbn_b0_bt_2_115200 },
 
+       {       PCI_VENDOR_ID_WCH, PCI_DEVICE_ID_WCH_CH355_4S,
+               PCI_ANY_ID, PCI_ANY_ID,
+               0, 0, pbn_b0_bt_4_115200 },
+
        {       PCIE_VENDOR_ID_WCH, PCIE_DEVICE_ID_WCH_CH382_2S,
                PCI_ANY_ID, PCI_ANY_ID,
                0, 0, pbn_wch382_2 },