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authorMichel Dänzer <daenzer@vmware.com>2009-06-17 18:28:38 +0200
committerDave Airlie <airlied@redhat.com>2009-06-19 09:30:06 +1000
commit8b5c744485b75d940ccb1c83c9a358b20eb91346 (patch)
treeba72b962795e61805ae28928b4985932e00dbed3 /drivers/gpu/drm
parent4e484e7dc5856ff5086b6329d82e36d4adaf1f02 (diff)
drm/radeon: Fully initialize LVDS info also when we can't get it from the ROM.
This makes the panel on my PowerBook light up. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/radeon/radeon_combios.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index 06e8038bc4a..afc4db280b9 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -799,6 +799,7 @@ static struct radeon_encoder_lvds *radeon_legacy_get_lvds_info_from_regs(struct
struct radeon_encoder_lvds *lvds = NULL;
uint32_t fp_vert_stretch, fp_horz_stretch;
uint32_t ppll_div_sel, ppll_val;
+ uint32_t lvds_ss_gen_cntl = RREG32(RADEON_LVDS_SS_GEN_CNTL);
lvds = kzalloc(sizeof(struct radeon_encoder_lvds), GFP_KERNEL);
@@ -808,6 +809,14 @@ static struct radeon_encoder_lvds *radeon_legacy_get_lvds_info_from_regs(struct
fp_vert_stretch = RREG32(RADEON_FP_VERT_STRETCH);
fp_horz_stretch = RREG32(RADEON_FP_HORZ_STRETCH);
+ /* These should be fail-safe defaults, fingers crossed */
+ lvds->panel_pwr_delay = 200;
+ lvds->panel_vcc_delay = 2000;
+
+ lvds->lvds_gen_cntl = RREG32(RADEON_LVDS_GEN_CNTL);
+ lvds->panel_digon_delay = (lvds_ss_gen_cntl >> RADEON_LVDS_PWRSEQ_DELAY1_SHIFT) & 0xf;
+ lvds->panel_blon_delay = (lvds_ss_gen_cntl >> RADEON_LVDS_PWRSEQ_DELAY2_SHIFT) & 0xf;
+
if (fp_vert_stretch & RADEON_VERT_STRETCH_ENABLE)
lvds->native_mode.panel_yres =
((fp_vert_stretch & RADEON_VERT_PANEL_SIZE) >>