Lines Matching +full:no +full:- +full:hpd
1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/display/panel/panel-edp.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Douglas Anderson <dianders@chromium.org>
14 to a Embedded DisplayPort AUX bus (see display/dp-aux-bus.yaml) without
17 board, either for second-sourcing purposes or to support multiple SKUs
51 :<T1>:<T2>: :<--T10-->:<T11>:<T12>:
52 : +-----------------------+---------+---------+
53 eDP -----------+ Black video | Src vid | Blk vid +
54 Display : +-----------------------+---------+---------+
56 HPD :<T3>| : : |
59 Sink +-----------------------:---------:---------+
60 AUX CH -----------+ AUX Ch operational : : +-------------
61 +-----------------------:---------:---------+
64 Src main +------+------+--------------+---------+
65 lnk data----------------+LnkTrn| Idle |Valid vid data| Idle/off+-------------
66 +------+------+--------------+---------+
67 : <T5> :<-T6->:<-T8->: :
78 power _______/ :<---T13---->: : : :<T16>: \______________
79 (Vbl) :<T17>:<---------T14--------->: :<-T15->:<T18>:
85 - $ref: panel-common.yaml#
89 const: edp-panel
91 hpd-reliable-delay-ms:
94 panel's power-supply before the HPD signal is a reliable way to know
96 the HPD at the start of power-on. This value is not needed if HPD is
99 hpd-absent-delay-ms:
101 The panel specifies that HPD will be asserted this many milliseconds
102 from power on (timing T3 in the diagram above). If we have no way to
103 measure HPD then a fixed delay of this many milliseconds can be used.
104 This can also be used as a timeout when waiting for HPD. Does not
105 include the hpd-reliable-delay, so if hpd-reliable-delay was 80 ms
106 and hpd-absent-delay was 200 ms then we'd do a fixed 80 ms delay and
107 then we know HPD would assert in the next 120 ms. This value is not
108 needed if HPD hooked up, either through a GPIO in the panel node or
112 enable-gpios: true
114 power-supply: true
115 no-hpd: true
116 hpd-gpios: true
121 - compatible
122 - power-supply
125 - |
126 #include <dt-bindings/clock/qcom,rpmh.h>
127 #include <dt-bindings/gpio/gpio.h>
128 #include <dt-bindings/interrupt-controller/irq.h>
131 #address-cells = <1>;
132 #size-cells = <0>;
138 interrupt-parent = <&tlmm>;
141 enable-gpios = <&tlmm 102 GPIO_ACTIVE_HIGH>;
143 vpll-supply = <&src_pp1800_s4a>;
144 vccio-supply = <&src_pp1800_s4a>;
145 vcca-supply = <&src_pp1200_l2a>;
146 vcc-supply = <&src_pp1200_l2a>;
149 clock-names = "refclk";
151 no-hpd;
154 #address-cells = <1>;
155 #size-cells = <0>;
160 remote-endpoint = <&dsi0_out>;
167 remote-endpoint = <&panel_in_edp>;
172 aux-bus {
174 compatible = "edp-panel";
175 power-supply = <&pp3300_dx_edp>;
177 hpd-gpios = <&sn65dsi86_bridge 2 GPIO_ACTIVE_HIGH>;
178 hpd-reliable-delay-ms = <15>;
182 remote-endpoint = <&sn65dsi86_out>;