[015/136] sisfb: change SiS_DDC_Port type to SISIOADDRESS

From: Greg KH
Date: Thu Oct 01 2009 - 22:01:03 EST

2.6.31-stable review patch. If anyone has any objections, please let us know.

------------------
From: Aaro Koskinen <aaro.koskinen@xxxxxx>

commit 532f649f148bf70e6a5816d95fe55e6a065e8754 upstream.

The patch enables the driver to be used on platforms such as ARM where an
I/O address is a 32-bit memory address.

The patch avoids the following kernel oops:

debian:~# modprobe sisfb
[ 73.070000] sisfb: Video ROM found
[ 73.080000] sisfb: Video RAM at 0x80000000, mapped to 0xe0a00000, size 1024k
[ 73.090000] sisfb: MMIO at 0x84080000, mapped to 0xe0b80000, size 256k
[ 73.090000] sisfb: Memory heap starting at 800K, size 32K
[ 73.360000] Unable to handle kernel paging request at virtual address 6e000844
[ 73.380000] pgd = df230000
[ 73.380000] [6e000844] *pgd=00000000
[ 73.380000] Internal error: Oops: 8f5 [#1]
[ 73.380000] Modules linked in: sisfb(+) fb cfbcopyarea cfbimgblt cfbfillrect
[ 73.380000] CPU: 0 Not tainted (2.6.31-iop32x #1)
[ 73.380000] PC is at SiS_SetRegANDOR+0x10/0x38 [sisfb]
[ 73.380000] LR is at SiS_SetSCLKHigh+0x38/0x94 [sisfb]
[ 73.380000] pc : [<bf01dc00>] lr : [<bf0238f8>] psr: 60000013
[ 73.380000] sp : df38fd00 ip : 6e000000 fp : 00000002
[ 73.380000] r10: 00000108 r9 : 00000000 r8 : 00000108
[ 73.380000] r7 : df064258 r6 : 00000110 r5 : 6e000844 r4 : 0000010a
[ 73.380000] r3 : 00000001 r2 : 0000000e r1 : 00000011 r0 : 00000844
[ 73.380000] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
[ 73.380000] Control: 0000397f Table: bf230000 DAC: 00000015
[ 73.380000] Process modprobe (pid: 1849, stack limit = 0xdf38e270)
[ 73.380000] Stack: (0xdf38fd00 to 0xdf390000)
[ 73.380000] fd00: 0000010a 00000108 df064258 df064258 df064258 00000000 00000000 bf02c4e0
[ 73.380000] fd20: 00000114 bf02c50c 00000013 00000114 0000010a df064258 00000000 bf02c980
[ 73.380000] fd40: 00009c66 00000004 00000001 df064250 a0010000 a6a2a0a0 df064250 00000003
[ 73.380000] fd60: df064250 00000000 df064258 0000fffd 00000000 00000000 00000000 bf033948
[ 73.380000] fd80: 00000000 00000000 00000000 bf019e2c 00000000 df064a70 bf03b470 00010000
[ 73.380000] fda0: 00000000 df064250 00000000 df831c00 00000012 bf039f70 00000000 c00abed8
[ 73.380000] fdc0: 000008a6 000008a4 df0649b0 df064878 df064258 df064000 00000000 00000000
[ 73.380000] fde0: 00000001 00008000 00000001 00030000 df81c930 bf049f88 df831c00 00000000
[ 73.380000] fe00: bf049f58 df3952a0 c0447708 bf049f88 bf049fe0 c0191980 df831c00 c0191b10
[ 73.380000] fe20: df831c58 bf049f58 df831c00 bf04aca8 df3952a0 df831c58 df831c58 bf049f88
[ 73.380000] fe40: c01ba1b4 c01ba0a0 df831c58 df831c8c bf049f88 c01ba1b4 df3952a0 00000000
[ 73.380000] fe60: c03e265c c01ba240 00000000 df38fe78 bf049f88 c01b990c df812938 df81b8d0
[ 73.380000] fe80: df3952a0 df807780 00000000 00000060 bf049f88 c01b9224 bf0429c8 00000000
[ 73.380000] fea0: bf049f58 00000000 bf049f88 00000000 00000000 bf04aea8 00000000 c01ba4e4
[ 73.380000] fec0: e09861a0 bf049f58 00000000 bf049f88 00000000 c0191f20 00000000 00000000
[ 73.380000] fee0: c03f7bac bf04d418 0000fff2 0000fff1 bf04ad08 0002f260 0002f260 e0986038
[ 73.380000] ff00: e0986150 e098568b df143340 e0990280 00000036 c03d8b00 fffffffd 00000000
[ 73.380000] ff20: bf04acfc 00000000 fffffffc 0003cf4b 00018098 c03f7bac 00000000 bf04d000
[ 73.380000] ff40: df38e000 00000000 bedc0984 c00272a4 ffffffff c005bc88 00000000 00000000
[ 73.380000] ff60: 0003cf4b 0003cf4b 00018098 bf04acfc 00000000 c0027fe8 df38e000 00000000
[ 73.380000] ff80: bedc0984 c006882c 00001000 00000003 00000000 00009064 00000000 00008edc
[ 73.380000] ffa0: 00000080 c0027e20 00009064 00000000 4014e000 0003cf4b 00018098 0003cf4b
[ 73.380000] ffc0: 00009064 00000000 00008edc 00000080 00000000 00000000 40025000 bedc0984
[ 73.380000] ffe0: 00000000 bedc08fc 0000b6b0 400e8f34 60000010 4014e000 00000000 00000000
[ 73.380000] [<bf01dc00>] (SiS_SetRegANDOR+0x10/0x38 [sisfb]) from [<df064258>] (0xdf064258)
[ 73.380000] Code: e92d0030 e20110ff e280546e e3a0c46e (e5c51000)
[ 73.680000] ---[ end trace 62a93e01df37a5f2 ]---

Signed-off-by: Aaro Koskinen <aaro.koskinen@xxxxxx>
Cc: Thomas Winischhofer <thomas@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
drivers/video/sis/vstruct.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/video/sis/vstruct.h
+++ b/drivers/video/sis/vstruct.h
@@ -342,7 +342,7 @@ struct SiS_Private
unsigned short SiS_RY4COE;
unsigned short SiS_LCDHDES;
unsigned short SiS_LCDVDES;
- unsigned short SiS_DDC_Port;
+ SISIOADDRESS SiS_DDC_Port;
unsigned short SiS_DDC_Index;
unsigned short SiS_DDC_Data;
unsigned short SiS_DDC_NData;


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