From: algea.cao Date: Mon, 27 Mar 2017 08:34:35 +0000 (+0800) Subject: drm/bridge: dw_hdmi: set vdisplay for frame packing 3d mode X-Git-Tag: firefly_0821_release~159 X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=18d3f3e7ce3024c6b50ec7f79943ea25f4de48f5;p=firefly-linux-kernel-4.4.55.git drm/bridge: dw_hdmi: set vdisplay for frame packing 3d mode This patch is only applicable to 3d frame packing of progressive mode. According to HDMI Specification 1.4b 8.2.3.2, vertical toatal line is x2 of 2D vertical toatal line and pixel clock frequency is x2 of 2D pixel clock frequency. vdisplay += vtotal mpixelclock *= 2 Change-Id: I097c25cd1a930635e33f0a7bc86797ad1c7ed607 Signed-off-by: algea.cao --- diff --git a/drivers/gpu/drm/bridge/dw-hdmi.c b/drivers/gpu/drm/bridge/dw-hdmi.c index e909262fd575..d05e1095a0ec 100644 --- a/drivers/gpu/drm/bridge/dw-hdmi.c +++ b/drivers/gpu/drm/bridge/dw-hdmi.c @@ -1505,6 +1505,9 @@ static void hdmi_av_composer(struct dw_hdmi *hdmi, vmode->mpixelclock = mode->crtc_clock * 1000; if (mode->flags & DRM_MODE_FLAG_420_MASK) vmode->mpixelclock /= 2; + if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == + DRM_MODE_FLAG_3D_FRAME_PACKING) + vmode->mpixelclock *= 2; dev_dbg(hdmi->dev, "final pixclk = %d\n", vmode->mpixelclock); /* Set up HDMI_FC_INVIDCONF @@ -1576,6 +1579,9 @@ static void hdmi_av_composer(struct dw_hdmi *hdmi, vblank /= 2; v_de_vs /= 2; vsync_len /= 2; + } else if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == + DRM_MODE_FLAG_3D_FRAME_PACKING) { + vdisplay += mode->vtotal; } /* Scrambling Control */