linux-kernel - [PATCH] Add support for new HPE serial device

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Message-Id: <1621009614-28836-1-git-send-email-rwright@hpe.com>
Date:   Fri, 14 May 2021 10:26:54 -0600
From:   Randy Wright <rwright@....com>
To:     linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     gustavoars@...nel.org, geert+renesas@...der.be, u74147@...il.com,
        tobiasdiedrich@...il.com, jirislaby@...nel.org,
        gregkh@...uxfoundation.org, jerry.hoemann@....com,
        toshi.kani@....com, rwright@....com
Subject: [PATCH] Add support for new HPE serial device

Add support for new HPE serial device.  It is MSI enabled,
but otherwise similar to legacy HP server serial devices.

Signed-off-by: Randy Wright <rwright@....com>
---
 drivers/tty/serial/8250/8250_pci.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 689d822..04fe424 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -56,6 +56,8 @@ struct serial_private {
 	int			line[];
 };
 
+#define PCI_DEVICE_ID_HPE_PCI_SERIAL	0x37e
+
 static const struct pci_device_id pci_use_msi[] = {
 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9900,
 			 0xA000, 0x1000) },
@@ -63,6 +65,8 @@ struct serial_private {
 			 0xA000, 0x1000) },
 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9922,
 			 0xA000, 0x1000) },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_HP_3PAR, PCI_DEVICE_ID_HPE_PCI_SERIAL,
+			 PCI_ANY_ID, PCI_ANY_ID) },
 	{ }
 };
 
@@ -1998,6 +2002,16 @@ static void pci_wch_ch38x_exit(struct pci_dev *dev)
 		.setup		= pci_hp_diva_setup,
 	},
 	/*
+	 * HPE PCI serial device
+	 */
+	{
+		.vendor         = PCI_VENDOR_ID_HP_3PAR,
+		.device         = PCI_DEVICE_ID_HPE_PCI_SERIAL,
+		.subvendor      = PCI_ANY_ID,
+		.subdevice      = PCI_ANY_ID,
+		.setup		= pci_hp_diva_setup,
+	},
+	/*
 	 * Intel
 	 */
 	{
@@ -4973,6 +4987,10 @@ static SIMPLE_DEV_PM_OPS(pciserial_pm_ops, pciserial_suspend_one,
 	{	PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_DIVA_AUX,
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		pbn_b2_1_115200 },
+	/* HPE PCI serial device */
+	{	PCI_VENDOR_ID_HP_3PAR, PCI_DEVICE_ID_HPE_PCI_SERIAL,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_1_115200 },
 
 	{	PCI_VENDOR_ID_DCI, PCI_DEVICE_ID_DCI_PCCOM2,
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
-- 
1.8.3.1