>From 7f15ad08efb8b58ea572689dbada7da1d3624a8c Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexdeuc...@gmail.com>
Date: Wed, 2 Dec 2009 00:59:37 -0500
Subject: [PATCH] drm/radeon/kms: don't use bios dividers for lvds on r4xx
R4xx cards don't have lvds pll dividers since they use atom.
should fix rh bug 541562
Signed-off-by: Alex Deucher <alexdeuc...@gmail.com>
---
drivers/gpu/drm/radeon/radeon_legacy_crtc.c | 22 ++++++++++++----------
1 files changed, 12 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
index c1e1706..6f3ff8b 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
@@ -796,18 +796,20 @@ static void radeon_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 (encoder->encoder_type == DRM_MODE_ENCODER_LVDS) {
- struct radeon_encoder *radeon_encoder =
to_radeon_encoder(encoder);
- struct radeon_encoder_lvds *lvds = (struct
radeon_encoder_lvds
*)radeon_encoder->enc_priv;
- if (lvds) {
- if (lvds->use_bios_dividers) {
- pll_ref_div =
lvds->panel_ref_divider;
- pll_fb_post_div =
(lvds->panel_fb_divider |
-
(lvds->panel_post_divider << 16));
- htotal_cntl = 0;
- use_bios_divs = true;
+ if (!rdev->is_atom_bios) {
+ struct radeon_encoder *radeon_encoder =
to_radeon_encoder(encoder);
+ struct radeon_encoder_lvds *lvds =
(struct radeon_encoder_lvds
*)radeon_encoder->enc_priv;
+ if (lvds) {
+ if (lvds->use_bios_dividers) {
+ pll_ref_div =
lvds->panel_ref_divider;
+ pll_fb_post_div =
(lvds->panel_fb_divider |
+
(lvds->panel_post_divider << 16));
+ htotal_cntl = 0;
+ use_bios_divs = true;
+ }
}
+ pll_flags |= RADEON_PLL_USE_REF_DIV;
}
- pll_flags |= RADEON_PLL_USE_REF_DIV;
}
}
}
--
1.5.6.3
From 7f15ad08efb8b58ea572689dbada7da1d3624a8c Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexdeuc...@gmail.com>
Date: Wed, 2 Dec 2009 00:59:37 -0500
Subject: [PATCH] drm/radeon/kms: don't use bios dividers for lvds on r4xx
R4xx cards don't have lvds pll dividers since they use atom.
should fix rh bug 541562
Signed-off-by: Alex Deucher <alexdeuc...@gmail.com>
---
drivers/gpu/drm/radeon/radeon_legacy_crtc.c | 22 ++++++++++++----------
1 files changed, 12 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
index c1e1706..6f3ff8b 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
@@ -796,18 +796,20 @@ static void radeon_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 (encoder->encoder_type == DRM_MODE_ENCODER_LVDS) {
- struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
- struct radeon_encoder_lvds *lvds = (struct radeon_encoder_lvds *)radeon_encoder->enc_priv;
- if (lvds) {
- if (lvds->use_bios_dividers) {
- pll_ref_div = lvds->panel_ref_divider;
- pll_fb_post_div = (lvds->panel_fb_divider |
- (lvds->panel_post_divider << 16));
- htotal_cntl = 0;
- use_bios_divs = true;
+ if (!rdev->is_atom_bios) {
+ struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+ struct radeon_encoder_lvds *lvds = (struct radeon_encoder_lvds *)radeon_encoder->enc_priv;
+ if (lvds) {
+ if (lvds->use_bios_dividers) {
+ pll_ref_div = lvds->panel_ref_divider;
+ pll_fb_post_div = (lvds->panel_fb_divider |
+ (lvds->panel_post_divider << 16));
+ htotal_cntl = 0;
+ use_bios_divs = true;
+ }
}
+ pll_flags |= RADEON_PLL_USE_REF_DIV;
}
- pll_flags |= RADEON_PLL_USE_REF_DIV;
}
}
}
--
1.5.6.3
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