On Thu, May 17, 2018 at 05:17:58PM +0800, Lin Huang wrote:
> If want to do training outside DP Firmware, need phy voltage swing
> and pre_emphasis value.
"dt-bindings: phy: ..." for the subject please.
>
> Signed-off-by: Lin Huang <h...@rock-chips.com>
> ---
> Changes in v2:
> - None
> Changes in v3:
> - modify property description and add this property to Example
> Change in v4:
> - None
> Change in v5:
> - None
>
> .../devicetree/bindings/phy/phy-rockchip-typec.txt | 29
> +++++++++++++++++++++-
> 1 file changed, 28 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
> b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
> index 960da7f..af298f2 100644
> --- a/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
> +++ b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
> @@ -17,7 +17,8 @@ Required properties:
>
> Optional properties:
> - extcon : extcon specifier for the Power Delivery
> -
> + - rockchip,phy_config : A list of voltage swing(mv) and pre-emphasis
> + (dB) pairs.
rockchip,phy-config
> Required nodes : a sub-node is required for each port the phy provides.
> The sub-node name is used to identify dp or usb3 port,
> and shall be the following entries:
> @@ -50,6 +51,19 @@ Example:
> <&cru SRST_P_UPHY0_TCPHY>;
> reset-names = "uphy", "uphy-pipe", "uphy-tcphy";
>
> + rockchip,phy_config =<0x2a 0x00
space ^
And format with inner <> ("< <0 1> <0 2> ... >") to show the pairs.
> + 0x1f 0x15
> + 0x14 0x22
> + 0x02 0x2b
> + 0x21 0x00
> + 0x12 0x15
> + 0x02 0x22
> + 0 0
> + 0x15 0x00
> + 0x00 0x15
> + 0 0
> + 0 0>;
Since you have <0 0> multiple times, I presume the index is significant
and the length is fixed. Please define the index meaning and length
above.
> +
> tcphy0_dp: dp-port {
> #phy-cells = <0>;
> };
> @@ -74,6 +88,19 @@ Example:
> <&cru SRST_P_UPHY1_TCPHY>;
> reset-names = "uphy", "uphy-pipe", "uphy-tcphy";
>
> + rockchip,phy_config =<0x2a 0x00
> + 0x1f 0x15
> + 0x14 0x22
> + 0x02 0x2b
> + 0x21 0x00
> + 0x12 0x15
> + 0x02 0x22
> + 0 0
> + 0x15 0x00
> + 0x00 0x15
> + 0 0
> + 0 0>;
> +
> tcphy1_dp: dp-port {
> #phy-cells = <0>;
> };
> --
> 2.7.4
>
