[PATCH v2] 8250_pci.c: Update NI specific devices class to multi serial
From: Guan Yung Tseng
Date: Tue Jan 15 2019 - 05:10:24 EST
Modified NI devices class to PCI_CLASS_COMMUNICATION_MULTISERIAL.
The reason of doing this is because all NI multi port serial cards
use PCI_CLASS_COMMUNICATION_OTHER class and thus fail the
serial_pci_is_class_communication test added in the commit 7d8905d06405
("serial: 8250_pci: Enable device after we check black list").
Signed-off-by: Guan Yung Tseng <guan.yung.tseng@xxxxxx>
---
Changes in v2:
- added comment to pci_ni_probe function
drivers/tty/serial/8250/8250_pci.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 4986b4a..1f91858 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -663,6 +663,18 @@ static int pci_xircom_init(struct pci_dev *dev)
return 0;
}
+/*
+ * NI Serial devices incorrectly identify themselves
+ * PCI_CLASS_COMMUNICATION_OTHER, instead of what
+ * they really are: PCI_CLASS_COMMUNICATION_MULTISERIAL
+ */
+static int pci_ni_probe(struct pci_dev *dev)
+{
+ dev->class = PCI_CLASS_COMMUNICATION_MULTISERIAL << 8 |
+ (dev->class & 0xff);
+ return 0;
+}
+
static int pci_ni8420_init(struct pci_dev *dev)
{
void __iomem *p;
@@ -1850,6 +1862,7 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.device = PCI_DEVICE_ID_NI_PCI23216,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
+ .probe = pci_ni_probe,
.init = pci_ni8420_init,
.setup = pci_default_setup,
.exit = pci_ni8420_exit,
@@ -1859,6 +1872,7 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.device = PCI_DEVICE_ID_NI_PCI2328,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
+ .probe = pci_ni_probe,
.init = pci_ni8420_init,
.setup = pci_default_setup,
.exit = pci_ni8420_exit,
@@ -1868,6 +1882,7 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.device = PCI_DEVICE_ID_NI_PCI2324,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
+ .probe = pci_ni_probe,
.init = pci_ni8420_init,
.setup = pci_default_setup,
.exit = pci_ni8420_exit,
@@ -1877,6 +1892,7 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.device = PCI_DEVICE_ID_NI_PCI2322,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
+ .probe = pci_ni_probe,
.init = pci_ni8420_init,
.setup = pci_default_setup,
.exit = pci_ni8420_exit,
@@ -1886,6 +1902,7 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.device = PCI_DEVICE_ID_NI_PCI2324I,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
+ .probe = pci_ni_probe,
.init = pci_ni8420_init,
.setup = pci_default_setup,
.exit = pci_ni8420_exit,
@@ -1895,6 +1912,7 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.device = PCI_DEVICE_ID_NI_PCI2322I,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
+ .probe = pci_ni_probe,
.init = pci_ni8420_init,
.setup = pci_default_setup,
.exit = pci_ni8420_exit,
@@ -1904,6 +1922,7 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.device = PCI_DEVICE_ID_NI_PXI8420_23216,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
+ .probe = pci_ni_probe,
.init = pci_ni8420_init,
.setup = pci_default_setup,
.exit = pci_ni8420_exit,
@@ -1913,6 +1932,7 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.device = PCI_DEVICE_ID_NI_PXI8420_2328,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
+ .probe = pci_ni_probe,
.init = pci_ni8420_init,
.setup = pci_default_setup,
.exit = pci_ni8420_exit,
@@ -1922,6 +1942,7 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.device = PCI_DEVICE_ID_NI_PXI8420_2324,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
+ .probe = pci_ni_probe,
.init = pci_ni8420_init,
.setup = pci_default_setup,
.exit = pci_ni8420_exit,
@@ -1931,6 +1952,7 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.device = PCI_DEVICE_ID_NI_PXI8420_2322,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
+ .probe = pci_ni_probe,
.init = pci_ni8420_init,
.setup = pci_default_setup,
.exit = pci_ni8420_exit,
@@ -1940,6 +1962,7 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.device = PCI_DEVICE_ID_NI_PXI8422_2324,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
+ .probe = pci_ni_probe,
.init = pci_ni8420_init,
.setup = pci_default_setup,
.exit = pci_ni8420_exit,
@@ -1949,6 +1972,7 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.device = PCI_DEVICE_ID_NI_PXI8422_2322,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
+ .probe = pci_ni_probe,
.init = pci_ni8420_init,
.setup = pci_default_setup,
.exit = pci_ni8420_exit,
@@ -1958,6 +1982,7 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.device = PCI_ANY_ID,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
+ .probe = pci_ni_probe,
.init = pci_ni8430_init,
.setup = pci_ni8430_setup,
.exit = pci_ni8430_exit,
--
2.7.4