linux-kernel - [PATCH 3/4] serial: 8250_pci: add support for ASIX AX99100

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Message-Id: <20230718174200.2862849-4-jiaqing.zhao@linux.intel.com>
Date:   Tue, 18 Jul 2023 17:41:59 +0000
From:   Jiaqing Zhao <jiaqing.zhao@...ux.intel.com>
To:     Wolfgang Grandegger <wg@...ndegger.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        Sudip Mukherjee <sudipm.mukherjee@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        linux-serial@...r.kernel.org, linux-pci@...r.kernel.org,
        linux-can@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jiaqing Zhao <jiaqing.zhao@...ux.intel.com>
Subject: [PATCH 3/4] serial: 8250_pci: add support for ASIX AX99100

All 4 PCI functions on ASIX AX99100 PCIe to Multi I/O Controller can be
configured as a single-port serial port controller. The subvendor id is
0x1000 when configured as serial port and MSI interrupts are supported.

Signed-off-by: Jiaqing Zhao <jiaqing.zhao@...ux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/tty/serial/8250/8250_pci.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index d2d547b5da95..62a9bd30b4db 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -67,6 +67,8 @@ static const struct pci_device_id pci_use_msi[] = {
 			 0xA000, 0x1000) },
 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9922,
 			 0xA000, 0x1000) },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ASIX, PCI_DEVICE_ID_ASIX_AX99100,
+			 0xA000, 0x1000) },
 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_HP_3PAR, PCI_DEVICE_ID_HPE_PCI_SERIAL,
 			 PCI_ANY_ID, PCI_ANY_ID) },
 	{ }
@@ -5557,6 +5559,14 @@ static const struct pci_device_id serial_pci_tbl[] = {
 	{	PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9865,
 		0xA000, 0x3004,
 		0, 0, pbn_b0_bt_4_115200 },
+
+	/*
+	 * ASIX AX99100 PCIe to Multi I/O Controller
+	 */
+	{	PCI_VENDOR_ID_ASIX, PCI_DEVICE_ID_ASIX_AX99100,
+		0xA000, 0x1000,
+		0, 0, pbn_b0_1_115200 },
+
 	/* Intel CE4100 */
 	{	PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CE4100_UART,
 		PCI_ANY_ID,  PCI_ANY_ID, 0, 0,
-- 
2.39.2