From: Jonas Karlman jonas@kwiboo.se
Configure the correct mtmdsclock for deep colors to prepare support for 10, 12 & 16bit output.
Signed-off-by: Jonas Karlman jonas@kwiboo.se Signed-off-by: Neil Armstrong narmstrong@baylibre.com --- drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c index 67fca439bbfb..9e0927d22db6 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c @@ -1818,9 +1818,26 @@ static void hdmi_av_composer(struct dw_hdmi *hdmi,
dev_dbg(hdmi->dev, "final pixclk = %d\n", vmode->mpixelclock);
+ if (!hdmi_bus_fmt_is_yuv422(hdmi->hdmi_data.enc_out_bus_format)) { + switch (hdmi_bus_fmt_color_depth( + hdmi->hdmi_data.enc_out_bus_format)) { + case 16: + vmode->mtmdsclock = (u64)vmode->mpixelclock * 2; + break; + case 12: + vmode->mtmdsclock = (u64)vmode->mpixelclock * 3 / 2; + break; + case 10: + vmode->mtmdsclock = (u64)vmode->mpixelclock * 5 / 4; + break; + } + } + if (hdmi_bus_fmt_is_yuv420(hdmi->hdmi_data.enc_out_bus_format)) vmode->mtmdsclock /= 2;
+ dev_dbg(hdmi->dev, "final tmdsclk = %d\n", vmode->mtmdsclock); + /* Set up HDMI_FC_INVIDCONF */ inv_val = (hdmi->hdmi_data.hdcp_enable || (dw_hdmi_support_scdc(hdmi) &&