1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT) 1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
2 /* 2 /*
3 * Google Trogdor dts fragment for the boards 3 * Google Trogdor dts fragment for the boards with Parade ps8640 edp bridge
4 * 4 *
5 * Copyright 2021 Google LLC. 5 * Copyright 2021 Google LLC.
6 */ 6 */
7 7
8 #include <dt-bindings/gpio/gpio.h> 8 #include <dt-bindings/gpio/gpio.h>
9 9
10 / { 10 / {
11 pp3300_brij_ps8640: pp3300-brij-ps8640 11 pp3300_brij_ps8640: pp3300-brij-ps8640-regulator {
12 compatible = "regulator-fixed" 12 compatible = "regulator-fixed";
13 status = "okay"; 13 status = "okay";
14 regulator-name = "pp3300_brij_ 14 regulator-name = "pp3300_brij_ps8640";
15 15
16 regulator-min-microvolt = <330 16 regulator-min-microvolt = <3300000>;
17 regulator-max-microvolt = <330 17 regulator-max-microvolt = <3300000>;
18 18
19 gpio = <&tlmm 32 GPIO_ACTIVE_H 19 gpio = <&tlmm 32 GPIO_ACTIVE_HIGH>;
20 enable-active-high; 20 enable-active-high;
21 21
22 pinctrl-names = "default"; 22 pinctrl-names = "default";
23 pinctrl-0 = <&en_pp3300_edp_br 23 pinctrl-0 = <&en_pp3300_edp_brij_ps8640>;
24 24
25 vin-supply = <&pp3300_a>; 25 vin-supply = <&pp3300_a>;
26 }; 26 };
27 }; 27 };
28 28
29 /* 29 /*
30 * ADDITIONS TO FIXED REGULATORS DEFINED IN PA 30 * ADDITIONS TO FIXED REGULATORS DEFINED IN PARENT DEVICE TREE FILES
31 * 31 *
32 * Sort order matches the order in the parent 32 * Sort order matches the order in the parent files (parents before children).
33 */ 33 */
34 34
35 &pp3300_dx_edp { 35 &pp3300_dx_edp {
36 off-on-delay-us = <500000>; 36 off-on-delay-us = <500000>;
37 37
38 /* 38 /*
39 * It's nicer to start with this regul 39 * It's nicer to start with this regulator enabled. The
40 * bootloader may have left it on and 40 * bootloader may have left it on and it's nice not to cause an
41 * extra power cycle of the touchscree 41 * extra power cycle of the touchscreen and eDP panel at bootup.
42 * This should help speed bootup becau 42 * This should help speed bootup because we have off-on-delay-us.
43 */ 43 */
44 regulator-boot-on; 44 regulator-boot-on;
45 }; 45 };
46 46
47 /* ADDITIONS TO NODES DEFINED IN PARENT DEVICE 47 /* ADDITIONS TO NODES DEFINED IN PARENT DEVICE TREE FILES */
48 48
49 edp_brij_i2c: &i2c2 { 49 edp_brij_i2c: &i2c2 {
50 status = "okay"; 50 status = "okay";
51 clock-frequency = <400000>; 51 clock-frequency = <400000>;
52 52
53 ps8640_bridge: bridge@8 { 53 ps8640_bridge: bridge@8 {
54 compatible = "parade,ps8640"; 54 compatible = "parade,ps8640";
55 reg = <0x8>; 55 reg = <0x8>;
56 56
57 powerdown-gpios = <&tlmm 104 G 57 powerdown-gpios = <&tlmm 104 GPIO_ACTIVE_LOW>;
58 reset-gpios = <&tlmm 11 GPIO_A 58 reset-gpios = <&tlmm 11 GPIO_ACTIVE_LOW>;
59 59
60 pinctrl-names = "default"; 60 pinctrl-names = "default";
61 pinctrl-0 = <&edp_brij_en>, <& 61 pinctrl-0 = <&edp_brij_en>, <&edp_brij_ps8640_rst>;
62 62
63 vdd12-supply = <&pp1200_brij>; 63 vdd12-supply = <&pp1200_brij>;
64 vdd33-supply = <&pp3300_brij_p 64 vdd33-supply = <&pp3300_brij_ps8640>;
65 65
66 ports { 66 ports {
67 #address-cells = <1>; 67 #address-cells = <1>;
68 #size-cells = <0>; 68 #size-cells = <0>;
69 69
70 port@0 { 70 port@0 {
71 reg = <0>; 71 reg = <0>;
72 ps8640_in: end 72 ps8640_in: endpoint {
73 remote 73 remote-endpoint = <&mdss_dsi0_out>;
74 }; 74 };
75 }; 75 };
76 76
77 port@1 { 77 port@1 {
78 reg = <1>; 78 reg = <1>;
79 ps8640_out: en 79 ps8640_out: endpoint {
80 remote 80 remote-endpoint = <&panel_in_edp>;
81 }; 81 };
82 }; 82 };
83 }; 83 };
84 84
85 aux-bus { 85 aux-bus {
86 panel: panel { 86 panel: panel {
87 /* Compatible 87 /* Compatible will be filled in per-board */
88 power-supply = 88 power-supply = <&pp3300_dx_edp>;
89 backlight = <& 89 backlight = <&backlight>;
90 90
91 port { 91 port {
92 panel_ 92 panel_in_edp: endpoint {
93 93 remote-endpoint = <&ps8640_out>;
94 }; 94 };
95 }; 95 };
96 }; 96 };
97 }; 97 };
98 }; 98 };
99 }; 99 };
100 100
101 &mdss_dsi0_out { 101 &mdss_dsi0_out {
102 remote-endpoint = <&ps8640_in>; 102 remote-endpoint = <&ps8640_in>;
103 }; 103 };
104 104
105 &tlmm { 105 &tlmm {
106 edp_brij_ps8640_rst: edp-brij-ps8640-r 106 edp_brij_ps8640_rst: edp-brij-ps8640-rst-state {
107 pins = "gpio11"; 107 pins = "gpio11";
108 function = "gpio"; 108 function = "gpio";
109 drive-strength = <2>; 109 drive-strength = <2>;
110 bias-disable; 110 bias-disable;
111 }; 111 };
112 112
113 en_pp3300_edp_brij_ps8640: en-pp3300-e 113 en_pp3300_edp_brij_ps8640: en-pp3300-edp-brij-ps8640-state {
114 pins = "gpio32"; 114 pins = "gpio32";
115 function = "gpio"; 115 function = "gpio";
116 drive-strength = <2>; 116 drive-strength = <2>;
117 bias-disable; 117 bias-disable;
118 }; 118 };
119 }; 119 };
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