tridentfb: register should be left in non-locked state

Remove locking registers after they are unlocked during switch to/from MMIO
mode.  This fixes regression on the Blade3D (Trident 9880) caused by the
previous patch (probe fixes).

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 12 deletions

diff --git a/drivers/video/tridentfb.c b/drivers/video/tridentfb.c
index 919ce75db9e2..5976a1e40514 100644
--- a/drivers/video/tridentfb.c
+++ b/drivers/video/tridentfb.c
@@ -566,44 +566,32 @@ static inline void write3CE(int reg, unsigned char val)
 
 static void enable_mmio(void)
 {
-        unsigned char tmp;
-
         /* Goto New Mode */
         outb(0x0B, 0x3C4);
         inb(0x3C5);
 
         /* Unprotect registers */
         outb(NewMode1, 0x3C4);
-        tmp = inb(0x3C5);
         outb(0x80, 0x3C5);
 
         /* Enable MMIO */
         outb(PCIReg, 0x3D4);
         outb(inb(0x3D5) | 0x01, 0x3D5);
-
-        t_outb(NewMode1, 0x3C4);
-        t_outb(tmp, 0x3C5);
 }
 
 static void disable_mmio(void)
 {
-        unsigned char tmp;
-
         /* Goto New Mode */
         t_outb(0x0B, 0x3C4);
         t_inb(0x3C5);
 
         /* Unprotect registers */
         t_outb(NewMode1, 0x3C4);
-        tmp = t_inb(0x3C5);
         t_outb(0x80, 0x3C5);
 
         /* Disable MMIO */
         t_outb(PCIReg, 0x3D4);
         t_outb(t_inb(0x3D5) & ~0x01, 0x3D5);
-
-        outb(NewMode1, 0x3C4);
-        outb(tmp, 0x3C5);
 }
 
 #define crtc_unlock()   write3X4(CRTVSyncEnd, read3X4(CRTVSyncEnd) & 0x7F)