| Message ID | 1526548680-2552-2-git-send-email-hl@rock-chips.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Am Donnerstag, 17. Mai 2018, 11:17:58 CEST schrieb Lin Huang: > If want to do training outside DP Firmware, need phy voltage swing > and pre_emphasis value. > > Signed-off-by: Lin Huang <hl@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. mv -> mV I'd think. This needs a bit more explanation please. Especially as the multiple "0 0" lines in the examples suggest some deeper ordering requirements. Like the 3 blocks of 4 entries as can be seen in the default config in patch3. The binding should definitly describe what these are. > 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 > + 0x1f 0x15 > + 0x14 0x22 > + 0x02 0x2b > + 0x21 0x00 > + 0x12 0x15 > + 0x02 0x22 > + 0 0 > + 0x15 0x00 > + 0x00 0x15 > + 0 0 > + 0 0>; I don't think they should be hex-values, as according to the doc above these are values in mV and dB . Heiko
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 <hl@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 >
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. 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 + 0x1f 0x15 + 0x14 0x22 + 0x02 0x2b + 0x21 0x00 + 0x12 0x15 + 0x02 0x22 + 0 0 + 0x15 0x00 + 0x00 0x15 + 0 0 + 0 0>; + 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>; };
If want to do training outside DP Firmware, need phy voltage swing and pre_emphasis value. Signed-off-by: Lin Huang <hl@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(-)