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hdmi:rk3368/rk3288: modify phy termination resistance.

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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>
This commit is contained in:
Zheng Yang
2015-07-10 11:33:57 +08:00
parent 132ad528d0
commit f1d8317f7f
1 changed files with 19 additions and 12 deletions
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31
drivers/video/rockchip/hdmi/rockchip-hdmiv2/rockchip_hdmiv2_hw.c
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@@ -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)
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(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
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 */