aboutsummaryrefslogtreecommitdiff
path: root/drivers/gpu/drm
diff options
context:
space:
mode:
authorAlex Deucher2009-12-04 16:35:57 -0500
committerDave Airlie2009-12-08 08:53:25 +1000
commit2a008d0ccde4ce59a2714e132d5f86a0771e6422 (patch)
tree51eabe644466b3601d77ebd8497e44e747acc981 /drivers/gpu/drm
parent92cde00cbaf3236ef7ea9bd4f0b43c8c4a3f507f (diff)
drm/radeon/kms: more r4xx lvds fixes
Grab pll ref div from regs at driver init. r4xx seems very picky about the dividers for the pll driving lvds. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/radeon/atombios_crtc.c5
-rw-r--r--drivers/gpu/drm/radeon/radeon_clocks.c15
-rw-r--r--drivers/gpu/drm/radeon/radeon_legacy_crtc.c2
3 files changed, 16 insertions, 6 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index 89ac43881be9..fba3c96b915b 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -457,9 +457,8 @@ void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
if (encoder->encoder_type !=
DRM_MODE_ENCODER_DAC)
pll_flags |= RADEON_PLL_NO_ODD_POST_DIV;
- if (!ASIC_IS_AVIVO(rdev)
- && (encoder->encoder_type ==
- DRM_MODE_ENCODER_LVDS))
+ if (encoder->encoder_type ==
+ DRM_MODE_ENCODER_LVDS)
pll_flags |= RADEON_PLL_USE_REF_DIV;
}
radeon_encoder = to_radeon_encoder(encoder);
diff --git a/drivers/gpu/drm/radeon/radeon_clocks.c b/drivers/gpu/drm/radeon/radeon_clocks.c
index 2c541e08f160..b062109efbee 100644
--- a/drivers/gpu/drm/radeon/radeon_clocks.c
+++ b/drivers/gpu/drm/radeon/radeon_clocks.c
@@ -106,8 +106,19 @@ void radeon_get_clock_info(struct drm_device *dev)
ret = radeon_combios_get_clock_info(dev);
if (ret) {
- if (p1pll->reference_div < 2)
- p1pll->reference_div = 12;
+ if (p1pll->reference_div < 2) {
+ if (!ASIC_IS_AVIVO(rdev)) {
+ u32 tmp = RREG32_PLL(RADEON_PPLL_REF_DIV);
+ if (ASIC_IS_R300(rdev))
+ p1pll->reference_div =
+ (tmp & R300_PPLL_REF_DIV_ACC_MASK) >> R300_PPLL_REF_DIV_ACC_SHIFT;
+ else
+ p1pll->reference_div = tmp & RADEON_PPLL_REF_DIV_MASK;
+ if (p1pll->reference_div < 2)
+ p1pll->reference_div = 12;
+ } else
+ p1pll->reference_div = 12;
+ }
if (p2pll->reference_div < 2)
p2pll->reference_div = 12;
if (rdev->family < CHIP_RS600) {
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
index 1058ed0d373f..b82ede98e152 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
@@ -819,8 +819,8 @@ static void radeon_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
use_bios_divs = true;
}
}
- pll_flags |= RADEON_PLL_USE_REF_DIV;
}
+ pll_flags |= RADEON_PLL_USE_REF_DIV;
}
}
}