From 8b5c744485b75d940ccb1c83c9a358b20eb91346 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Michel=20D=C3=A4nzer?= Date: Wed, 17 Jun 2009 18:28:38 +0200 Subject: [PATCH] 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 --- drivers/gpu/drm/radeon/radeon_combios.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index 06e8038bc4ac..afc4db280b94 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) >> -- 2.20.1