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drm/radeon/kms/legacy: set common regs to sane value

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The DDX and radeonfb always set these regs to a sane value.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2009-12-04 10:55:12 -05:00 committed by Dave Airlie
parent 6b02af1c1f
commit 92cde00cba
4 changed files with 21 additions and 0 deletions
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14
drivers/gpu/drm/radeon/r100.c
View File

@ -1675,6 +1675,17 @@ int r100_gpu_reset(struct radeon_device *rdev)
return 0;
}
void r100_set_common_regs(struct radeon_device *rdev)
{
/* set these so they don't interfere with anything */
WREG32(RADEON_OV0_SCALE_CNTL, 0);
WREG32(RADEON_SUBPIC_CNTL, 0);
WREG32(RADEON_VIPH_CONTROL, 0);
WREG32(RADEON_I2C_CNTL_1, 0);
WREG32(RADEON_DVI_I2C_CNTL_1, 0);
WREG32(RADEON_CAP0_TRIG_CNTL, 0);
WREG32(RADEON_CAP1_TRIG_CNTL, 0);
}
/*
* VRAM info
@ -3129,6 +3140,9 @@ static int r100_startup(struct radeon_device *rdev)
{
int r;
/* set common regs */
r100_set_common_regs(rdev);
/* program mc */
r100_mc_program(rdev);
/* Resume clock */
r100_clock_startup(rdev);

3
drivers/gpu/drm/radeon/r300.c
View File

@ -1186,6 +1186,9 @@ static int r300_startup(struct radeon_device *rdev)
{
int r;
/* set common regs */
r100_set_common_regs(rdev);
/* program mc */
r300_mc_program(rdev);
/* Resume clock */
r300_clock_startup(rdev);

3
drivers/gpu/drm/radeon/r420.c
View File

@ -169,6 +169,9 @@ static int r420_startup(struct radeon_device *rdev)
{
int r;
/* set common regs */
r100_set_common_regs(rdev);
/* program mc */
r300_mc_program(rdev);
/* Resume clock */
r420_clock_resume(rdev);

1
drivers/gpu/drm/radeon/radeon.h
View File

@ -1046,6 +1046,7 @@ extern int r100_cs_packet_parse(struct radeon_cs_parser *p,
struct radeon_cs_packet *pkt,
unsigned idx);
extern void r100_enable_bm(struct radeon_device *rdev);
extern void r100_set_common_regs(struct radeon_device *rdev);
/* rv200,rv250,rv280 */
extern void r200_set_safe_registers(struct radeon_device *rdev);