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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>
This commit is contained in:
Michel Dänzer 2009-06-17 18:28:38 +02:00 committed by Dave Airlie
parent 4e484e7dc5
commit 8b5c744485
1 changed files with 9 additions and 0 deletions
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9
drivers/gpu/drm/radeon/radeon_combios.c
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@ -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) >>