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-rw-r--r--drivers/video/vgastate.c26
1 files changed, 11 insertions, 15 deletions
diff --git a/drivers/video/vgastate.c b/drivers/video/vgastate.c
index d94efafc77b..b91c466225b 100644
--- a/drivers/video/vgastate.c
+++ b/drivers/video/vgastate.c
@@ -50,23 +50,28 @@ static void save_vga_text(struct vgastate *state, void __iomem *fbbase)
struct regstate *saved = (struct regstate *) state->vidstate;
int i;
u8 misc, attr10, gr4, gr5, gr6, seq1, seq2, seq4;
+ unsigned short iobase;
/* if in graphics mode, no need to save */
+ misc = vga_r(state->vgabase, VGA_MIS_R);
+ iobase = (misc & 1) ? 0x3d0 : 0x3b0;
+
+ vga_r(state->vgabase, iobase + 0xa);
+ vga_w(state->vgabase, VGA_ATT_W, 0x00);
attr10 = vga_rattr(state->vgabase, 0x10);
+ vga_r(state->vgabase, iobase + 0xa);
+ vga_w(state->vgabase, VGA_ATT_W, 0x20);
+
if (attr10 & 1)
return;
-
+
/* save regs */
- misc = vga_r(state->vgabase, VGA_MIS_R);
gr4 = vga_rgfx(state->vgabase, VGA_GFX_PLANE_READ);
gr5 = vga_rgfx(state->vgabase, VGA_GFX_MODE);
gr6 = vga_rgfx(state->vgabase, VGA_GFX_MISC);
seq2 = vga_rseq(state->vgabase, VGA_SEQ_PLANE_WRITE);
seq4 = vga_rseq(state->vgabase, VGA_SEQ_MEMORY_MODE);
- /* force graphics mode */
- vga_w(state->vgabase, VGA_MIS_W, misc | 1);
-
/* blank screen */
seq1 = vga_rseq(state->vgabase, VGA_SEQ_CLOCK_MODE);
vga_wseq(state->vgabase, VGA_SEQ_RESET, 0x1);
@@ -115,15 +120,12 @@ static void save_vga_text(struct vgastate *state, void __iomem *fbbase)
}
/* restore regs */
- vga_wattr(state->vgabase, 0x10, attr10);
-
vga_wseq(state->vgabase, VGA_SEQ_PLANE_WRITE, seq2);
vga_wseq(state->vgabase, VGA_SEQ_MEMORY_MODE, seq4);
vga_wgfx(state->vgabase, VGA_GFX_PLANE_READ, gr4);
vga_wgfx(state->vgabase, VGA_GFX_MODE, gr5);
vga_wgfx(state->vgabase, VGA_GFX_MISC, gr6);
- vga_w(state->vgabase, VGA_MIS_W, misc);
/* unblank screen */
vga_wseq(state->vgabase, VGA_SEQ_RESET, 0x1);
@@ -137,11 +139,10 @@ static void restore_vga_text(struct vgastate *state, void __iomem *fbbase)
{
struct regstate *saved = (struct regstate *) state->vidstate;
int i;
- u8 misc, gr1, gr3, gr4, gr5, gr6, gr8;
+ u8 gr1, gr3, gr4, gr5, gr6, gr8;
u8 seq1, seq2, seq4;
/* save regs */
- misc = vga_r(state->vgabase, VGA_MIS_R);
gr1 = vga_rgfx(state->vgabase, VGA_GFX_SR_ENABLE);
gr3 = vga_rgfx(state->vgabase, VGA_GFX_DATA_ROTATE);
gr4 = vga_rgfx(state->vgabase, VGA_GFX_PLANE_READ);
@@ -151,9 +152,6 @@ static void restore_vga_text(struct vgastate *state, void __iomem *fbbase)
seq2 = vga_rseq(state->vgabase, VGA_SEQ_PLANE_WRITE);
seq4 = vga_rseq(state->vgabase, VGA_SEQ_MEMORY_MODE);
- /* force graphics mode */
- vga_w(state->vgabase, VGA_MIS_W, misc | 1);
-
/* blank screen */
seq1 = vga_rseq(state->vgabase, VGA_SEQ_CLOCK_MODE);
vga_wseq(state->vgabase, VGA_SEQ_RESET, 0x1);
@@ -213,8 +211,6 @@ static void restore_vga_text(struct vgastate *state, void __iomem *fbbase)
vga_wseq(state->vgabase, VGA_SEQ_RESET, 0x3);
/* restore regs */
- vga_w(state->vgabase, VGA_MIS_W, misc);
-
vga_wgfx(state->vgabase, VGA_GFX_SR_ENABLE, gr1);
vga_wgfx(state->vgabase, VGA_GFX_DATA_ROTATE, gr3);
vga_wgfx(state->vgabase, VGA_GFX_PLANE_READ, gr4);