From ee681c9aa21dea6729871cc55ff1514f2185600b Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 15 Oct 2015 02:05:31 -0400 Subject: [PATCH] drm/amdgpu/atom: add support for new SetPixelClock table MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit New version of the SetPixelClock table for elm/baf. The new table calculates the pll dividers and handles spread spectrum calculations and setup. Reviewed-by: Christian König Signed-off-by: Alex Deucher Reviewed-by: Jammy Zhou --- drivers/gpu/drm/amd/amdgpu/atombios_crtc.c | 53 +++++++++++++++++----- 1 file changed, 41 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_crtc.c b/drivers/gpu/drm/amd/amdgpu/atombios_crtc.c index bd6c530bdf7e..49a39b1a0a96 100644 --- a/drivers/gpu/drm/amd/amdgpu/atombios_crtc.c +++ b/drivers/gpu/drm/amd/amdgpu/atombios_crtc.c @@ -461,6 +461,7 @@ union set_pixel_clock { PIXEL_CLOCK_PARAMETERS_V3 v3; PIXEL_CLOCK_PARAMETERS_V5 v5; PIXEL_CLOCK_PARAMETERS_V6 v6; + PIXEL_CLOCK_PARAMETERS_V7 v7; }; /* on DCE5, make sure the voltage is high enough to support the @@ -566,18 +567,18 @@ static bool is_pixel_clock_source_from_pll(u32 encoder_mode, int pll_id) } void amdgpu_atombios_crtc_program_pll(struct drm_crtc *crtc, - u32 crtc_id, - int pll_id, - u32 encoder_mode, - u32 encoder_id, - u32 clock, - u32 ref_div, - u32 fb_div, - u32 frac_fb_div, - u32 post_div, - int bpc, - bool ss_enabled, - struct amdgpu_atom_ss *ss) + u32 crtc_id, + int pll_id, + u32 encoder_mode, + u32 encoder_id, + u32 clock, + u32 ref_div, + u32 fb_div, + u32 frac_fb_div, + u32 post_div, + int bpc, + bool ss_enabled, + struct amdgpu_atom_ss *ss) { struct drm_device *dev = crtc->dev; struct amdgpu_device *adev = dev->dev_private; @@ -695,6 +696,34 @@ void amdgpu_atombios_crtc_program_pll(struct drm_crtc *crtc, args.v6.ucEncoderMode = encoder_mode; args.v6.ucPpll = pll_id; break; + case 7: + args.v7.ulPixelClock = cpu_to_le32(clock * 10); /* 100 hz units */ + args.v7.ucMiscInfo = 0; + if ((encoder_mode == ATOM_ENCODER_MODE_DVI) && + (clock > 165000)) + args.v7.ucMiscInfo |= PIXEL_CLOCK_V7_MISC_DVI_DUALLINK_EN; + args.v7.ucCRTC = crtc_id; + if (encoder_mode == ATOM_ENCODER_MODE_HDMI) { + switch (bpc) { + case 8: + default: + args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_DIS; + break; + case 10: + args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_5_4; + break; + case 12: + args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_3_2; + break; + case 16: + args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_2_1; + break; + } + } + args.v7.ucTransmitterID = encoder_id; + args.v7.ucEncoderMode = encoder_mode; + args.v7.ucPpll = pll_id; + break; default: DRM_ERROR("Unknown table version %d %d\n", frev, crev); return; -- 2.20.1