From: Gilles Risch <gilles.ri...@gmail.com> The Apple iMac11,1 (late 2009) has an integrated ATI Mobility Radeon HD 4850. This machine suffers from a similar problem as the iMac10,1 (late 2009) and the iMac11,2 (mid 2010). This small patch fixes the issue on this machine.
Fixes freedesktop issue 164 Link: https://gitlab.freedesktop.org/xorg/driver/xf86-video-ati/-/issues/164 Signed-off-by: Gilles Risch <gilles.ri...@gmail.com> Signed-off-by: Alex Deucher <alexander.deuc...@amd.com> --- drivers/gpu/drm/radeon/atombios_crtc.c | 4 ++-- drivers/gpu/drm/radeon/atombios_encoders.c | 9 +++++---- drivers/gpu/drm/radeon/radeon.h | 1 + 3 files changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index ade13173921b..b530153aeae9 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -580,7 +580,7 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc, radeon_crtc->pll_flags |= (/*RADEON_PLL_USE_FRAC_FB_DIV |*/ RADEON_PLL_PREFER_CLOSEST_LOWER); - if (ASIC_IS_DCE32(rdev) && mode->clock > 200000) /* range limits??? */ + if (ASIC_IS_DCE31(rdev) && mode->clock > 200000) /* range limits??? */ radeon_crtc->pll_flags |= RADEON_PLL_PREFER_HIGH_FB_DIV; else radeon_crtc->pll_flags |= RADEON_PLL_PREFER_LOW_REF_DIV; @@ -594,7 +594,7 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc, if (((rdev->family == CHIP_RS780) || (rdev->family == CHIP_RS880)) && !radeon_crtc->ss_enabled) radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV; - if (ASIC_IS_DCE32(rdev) && mode->clock > 165000) + if (ASIC_IS_DCE31(rdev) && mode->clock > 165000) radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV; } else { radeon_crtc->pll_flags |= RADEON_PLL_LEGACY; diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c index 4aca09cab4b8..0274841b8616 100644 --- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -2122,12 +2122,13 @@ int radeon_atom_pick_dig_encoder(struct drm_encoder *encoder, int fe_idx) } /* - * On DCE32 any encoder can drive any block so usually just use crtc id, - * but Apple thinks different at least on iMac10,1 and iMac11,2, so there use linkb, - * otherwise the internal eDP panel will stay dark. + * On DCE31 and DCE32 any encoder can drive any block so usually just use crtc id, + * but Apple thinks different at least on iMac10,1, iMac11,1 and iMac11,2, + * so there use linkb, otherwise the internal eDP panel will stay dark. */ - if (ASIC_IS_DCE32(rdev)) { + if (ASIC_IS_DCE31(rdev)) { if (dmi_match(DMI_PRODUCT_NAME, "iMac10,1") || + dmi_match(DMI_PRODUCT_NAME, "iMac11,1") || dmi_match(DMI_PRODUCT_NAME, "iMac11,2")) enc_idx = (dig->linkb) ? 1 : 0; else diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 3d3d2109dfeb..b38ac1fdeb5e 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -2624,6 +2624,7 @@ void r100_pll_errata_after_index(struct radeon_device *rdev); (rdev->family == CHIP_RS740) || \ (rdev->family >= CHIP_R600)) #define ASIC_IS_DCE3(rdev) ((rdev->family >= CHIP_RV620)) +#define ASIC_IS_DCE31(rdev) ((rdev->family >= CHIP_RV770)) #define ASIC_IS_DCE32(rdev) ((rdev->family >= CHIP_RV730)) #define ASIC_IS_DCE4(rdev) ((rdev->family >= CHIP_CEDAR)) #define ASIC_IS_DCE41(rdev) ((rdev->family >= CHIP_PALM) && \ -- 2.42.0
