[PATCH] parport: NetMos nm9855 fix

kernel 2.6.12-rc2 adopted some code by Bjorn Helgaas supporting NetMos combo
controller cards. this implementation doesn't work for nm9855 based cards!

there are two reasons:

a) the module 'parport_pc' doesn't want to give the resonsibility for
   the netmos_9855 to 'parport_serial' and can not handle the serial lines
   -- trivial to fix...

   http://lists.infradead.org/pipermail/linux-parport/2005-February/000250.html
   http://lkml.org/lkml/2005/3/24/199 b) the support for the nm9855 in

   'parport_serial' still doesn't work because of wrong assumptions about
   the relevant BARs port address layout for this chip:

	 0000:00:09.0 Communication controller:
         	      NetMos Technology PCI 9855
         	      Multi-I/O Controller (rev 01)
	 	      (= 9710:9855)
         Subsystem: LSI Logic / Symbios Logic 1P4S (= 1000:0014)
  	 Flags: medium devsel, IRQ 177
	 I/O ports at a800 [size=8]  (= parport)
	 I/O ports at a400 [size=8]
	 I/O ports at a000 [size=8]  (= serial)
	 I/O ports at 9800 [size=8]  (= serial)
	 I/O ports at 9400 [size=8]  (= serial)
	 I/O ports at 9000 [size=16] (= serial)

the following patch will fix the problem.

Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c
index e7f3bcb..80edfa3 100644 (file)
--- a/drivers/parport/parport_pc.c
+++ b/drivers/parport/parport_pc.c
@@ -2751,7 +2751,6 @@ enum parport_pc_pci_cards {
        netmos_9755,
        netmos_9805,
        netmos_9815,
-       netmos_9855,
 };
 
 
@@ -2826,7 +2825,6 @@ static struct parport_pc_pci {
         /* netmos_9755 */               { 2, { { 0, 1 }, { 2, 3 },} }, /* untested */
        /* netmos_9805 */               { 1, { { 0, -1 }, } }, /* untested */
        /* netmos_9815 */               { 2, { { 0, -1 }, { 2, -1 }, } }, /* untested */
-       /* netmos_9855 */               { 2, { { 0, -1 }, { 2, -1 }, } }, /* untested */
 };
 
 static struct pci_device_id parport_pc_pci_tbl[] = {
@@ -2907,8 +2905,6 @@ static struct pci_device_id parport_pc_pci_tbl[] = {
          PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9805 },
        { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9815,
          PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9815 },
-       { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9855,
-         PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9855 },
        { 0, } /* terminate list */
 };
 MODULE_DEVICE_TABLE(pci,parport_pc_pci_tbl);

diff --git a/drivers/parport/parport_serial.c b/drivers/parport/parport_serial.c
index 6715a17..00498e2 100644 (file)
--- a/drivers/parport/parport_serial.c
+++ b/drivers/parport/parport_serial.c
@@ -34,6 +34,7 @@ enum parport_pc_pci_cards {
        titan_110l = 0,
        titan_210l,
        netmos_9xx5_combo,
+       netmos_9855,
        avlab_1s1p,
        avlab_1s1p_650,
        avlab_1s1p_850,
@@ -87,6 +88,7 @@ static struct parport_pc_pci cards[] __devinitdata = {
        /* titan_110l */                { 1, { { 3, -1 }, } },
        /* titan_210l */                { 1, { { 3, -1 }, } },
        /* netmos_9xx5_combo */         { 1, { { 2, -1 }, }, netmos_parallel_init },
+       /* netmos_9855 */               { 1, { { 0, -1 }, }, netmos_parallel_init },
        /* avlab_1s1p     */            { 1, { { 1, 2}, } },
        /* avlab_1s1p_650 */            { 1, { { 1, 2}, } },
        /* avlab_1s1p_850 */            { 1, { { 1, 2}, } },
@@ -120,7 +122,7 @@ static struct pci_device_id parport_serial_pci_tbl[] = {
        { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9845,
          PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
        { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9855,
-         PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
+         PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9855 },
        /* PCI_VENDOR_ID_AVLAB/Intek21 has another bunch of cards ...*/
        { 0x14db, 0x2110, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p},
        { 0x14db, 0x2111, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p_650},
@@ -207,6 +209,7 @@ static struct pci_board_no_ids pci_boards[] __devinitdata = {
 /* titan_110l */       { SPCI_FL_BASE1 | SPCI_FL_BASE_TABLE, 1, 921600 },
 /* titan_210l */       { SPCI_FL_BASE1 | SPCI_FL_BASE_TABLE, 2, 921600 },
 /* netmos_9xx5_combo */        { SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200, 0, 0, netmos_serial_init },
+/* netmos_9855 */      { SPCI_FL_BASE2 | SPCI_FL_BASE_TABLE, 1, 115200, 0, 0, netmos_serial_init },
 /* avlab_1s1p (n/t) */ { SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
 /* avlab_1s1p_650 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
 /* avlab_1s1p_850 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },