hdmi:rk3368/rk3288: modify phy termination resistance.

        Set single-ended source termination resistance
        to 100ohm for HDMI1.4 and 50ohm for HDMI2.0.

Signed-off-by: Zheng Yang <zhengyang@rock-chips.com>

diff --git a/drivers/video/rockchip/hdmi/rockchip-hdmiv2/rockchip_hdmiv2_hw.c b/drivers/video/rockchip/hdmi/rockchip-hdmiv2/rockchip_hdmiv2_hw.c
index 4106858b6b2d6f53f32300b80be72b43fd3a66ac..ef98b201b3b3e95ef421a10d6f786708859b195c 100755 (executable)
--- a/drivers/video/rockchip/hdmi/rockchip-hdmiv2/rockchip_hdmiv2_hw.c
+++ b/drivers/video/rockchip/hdmi/rockchip-hdmiv2/rockchip_hdmiv2_hw.c
@@ -462,23 +462,30 @@ static int rockchip_hdmiv2_config_phy(struct hdmi_dev *hdmi_dev)
                                          v_MPLL_GMP_CNTRL(
                                          phy_mpll->gmp_cntrl));
        }
-       rockchip_hdmiv2_write_phy(hdmi_dev, PHYTX_TERM_RESIS,
-                                 v_TX_TERM(R50_OHMS));
+
        rockchip_hdmiv2_write_phy(hdmi_dev, PHYTX_CLKSYMCTRL,
                                  v_OVERRIDE(1) | v_SLOPEBOOST(0) |
                                  v_TX_SYMON(1) | v_TX_TRAON(0) |
                                  v_TX_TRBON(0) | v_CLK_SYMON(1));
-       if (hdmi_dev->tmdsclk > 340000000)
-               rockchip_hdmiv2_write_phy(hdmi_dev, PHYTX_VLEVCTRL,
-                                         v_SUP_TXLVL(9) | v_SUP_CLKLVL(17));
-       else if (hdmi_dev->tmdsclk > 165000000)
-               rockchip_hdmiv2_write_phy(hdmi_dev, PHYTX_VLEVCTRL,
-                                         v_SUP_TXLVL(14) | v_SUP_CLKLVL(17));
-       else
+       if (hdmi_dev->tmdsclk > 340000000) {
+               rockchip_hdmiv2_write_phy(hdmi_dev, PHYTX_TERM_RESIS,
+                                         v_TX_TERM(R50_OHMS));
                rockchip_hdmiv2_write_phy(hdmi_dev, PHYTX_VLEVCTRL,
-                                         v_SUP_TXLVL(18) | v_SUP_CLKLVL(17));
-
-       rockchip_hdmiv2_write_phy(hdmi_dev, 0x05, 0x8000);
+                                         v_SUP_TXLVL(9) |
+                                         v_SUP_CLKLVL(17));
+       } else {
+               rockchip_hdmiv2_write_phy(hdmi_dev, PHYTX_TERM_RESIS,
+                                         v_TX_TERM(R100_OHMS));
+               if (hdmi_dev->tmdsclk > 165000000)
+                       rockchip_hdmiv2_write_phy(hdmi_dev, PHYTX_VLEVCTRL,
+                                                 v_SUP_TXLVL(14) |
+                                                 v_SUP_CLKLVL(17));
+               else
+                       rockchip_hdmiv2_write_phy(hdmi_dev, PHYTX_VLEVCTRL,
+                                                 v_SUP_TXLVL(18) |
+                                                 v_SUP_CLKLVL(17));
+       }
+       /* rockchip_hdmiv2_write_phy(hdmi_dev, 0x05, 0x8000); */
        if (hdmi_dev->tmdsclk_ratio_change)
                msleep(100);
        /* power on PHY */