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Subject[PATCH] 8250_pci: Add IBM Saturn serial card
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Date
The IBM Saturn serial card has only one port. Without that fixup,
the kernel thinks it has two, which confuses userland setup and
admin tools as well.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---

Andrew & Others on CC... not sure who takes care of patches to
that driver nowadays. Should I send directly to Linus ?

diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c
index e7108e7..7b5ff09 100644
--- a/drivers/serial/8250_pci.c
+++ b/drivers/serial/8250_pci.c
@@ -1561,6 +1561,7 @@ enum pci_board_num_t {
pbn_exar_XR17C152,
pbn_exar_XR17C154,
pbn_exar_XR17C158,
+ pbn_exar_ibm_saturn,
pbn_pasemi_1682M,
pbn_ni8430_2,
pbn_ni8430_4,
@@ -2146,6 +2147,13 @@ static struct pciserial_board pci_boards[] __devinitdata = {
.base_baud = 921600,
.uart_offset = 0x200,
},
+ [pbn_exar_ibm_saturn] = {
+ .flags = FL_BASE0,
+ .num_ports = 1,
+ .base_baud = 921600,
+ .uart_offset = 0x200,
+ },
+
/*
* PA Semi PWRficient PA6T-1682M on-chip UART
*/
@@ -2649,6 +2657,9 @@ static struct pci_device_id serial_pci_tbl[] = {
PCI_SUBVENDOR_ID_CONNECT_TECH,
PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_8_485, 0, 0,
pbn_b0_8_1843200_200 },
+ { PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17C152,
+ PCI_VENDOR_ID_IBM, PCI_SUBDEVICE_ID_IBM_SATURN_SERIAL_ONE_PORT,
+ 0, 0, pbn_exar_ibm_saturn },

{ PCI_VENDOR_ID_SEALEVEL, PCI_DEVICE_ID_SEALEVEL_U530,
PCI_ANY_ID, PCI_ANY_ID, 0, 0,
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 0d96be9..06a7b94 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -481,6 +481,8 @@
#define PCI_DEVICE_ID_IBM_ICOM_V2_ONE_PORT_RVX_ONE_PORT_MDM 0x0251
#define PCI_DEVICE_ID_IBM_ICOM_V2_ONE_PORT_RVX_ONE_PORT_MDM_PCIE 0x0361
#define PCI_DEVICE_ID_IBM_ICOM_FOUR_PORT_MODEL 0x252
+#define PCI_SUBVENDOR_ID_IBM 0x1014
+#define PCI_SUBDEVICE_ID_IBM_SATURN_SERIAL_ONE_PORT 0x03d4

#define PCI_VENDOR_ID_UNISYS 0x1018
#define PCI_DEVICE_ID_UNISYS_DMA_DIRECTOR 0x001C







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