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arm64: dts: rockchip: rk3588-vehicle-evb-v22: Add delay for all camera related regulators

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It will be more safer for regulator consumer devices to power on
after their power suppliers are stable. And regulator consumer devices
need to completely shut down, then power up for a reset cycle.
Therefor, regulator providers need to be make sure shutdown completely.

- startup-delay-us can be used to wait regulator providers be powered on
  good, according their power-up time.
- off-on-delay-us can be used to wait regulator providers be shut down
  completely.

1. cameraN_vcc12v_buck have a approximate ~1ms power on rise time
and ~13-~14ms power off fall time

2. vcc5v0_buck uses MPQ4317 which have a approximate ~1.5ms
EN(on)->PG(high) delay and ~0.8ms EN(off)->PG(low)

Change-Id: I8f23a6a4b53c8760f62c64758a481ad86be4da16
Signed-off-by: Cody Xie <cody.xie@rock-chips.com>
This commit is contained in:
Cody Xie
2023-09-16 10:13:26 +08:00
committed by Tao Huang
parent db86421b1a
commit 6013ab7070
1 changed files with 14 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
arch/arm64/boot/dts/rockchip/rk3588-vehicle-evb-v22.dts
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@@ -27,6 +27,8 @@
vin-supply = <&vcc12v_dcin>;
pinctrl-names = "default";
pinctrl-0 = <&vcc5v0_buck_en>;
startup-delay-us = <2500>;
off-on-delay-us = <1500>;
regulator-state-mem {
regulator-on-in-suspend;
regulator-suspend-microvolt = <5000000>;
@@ -156,6 +158,8 @@
regulator-max-microvolt = <12000000>;
enable-active-high;
gpio = <&i2c5_nca9539_gpio 6 GPIO_ACTIVE_HIGH>;
startup-delay-us = <2000>;
off-on-delay-us = <16000>;
vin-supply = <&vcc12v_dcin>;
regulator-state-mem {
regulator-off-in-suspend;
@@ -172,6 +176,8 @@
regulator-max-microvolt = <12000000>;
enable-active-high;
gpio = <&i2c5_nca9539_gpio 7 GPIO_ACTIVE_HIGH>;
startup-delay-us = <2000>;
off-on-delay-us = <16000>;
vin-supply = <&vcc12v_dcin>;
regulator-state-mem {
regulator-off-in-suspend;
@@ -188,6 +194,8 @@
regulator-max-microvolt = <12000000>;
enable-active-high;
gpio = <&i2c5_nca9539_gpio 8 GPIO_ACTIVE_HIGH>;
startup-delay-us = <2000>;
off-on-delay-us = <16000>;
vin-supply = <&vcc12v_dcin>;
regulator-state-mem {
regulator-off-in-suspend;
@@ -204,6 +212,8 @@
regulator-max-microvolt = <12000000>;
enable-active-high;
gpio = <&i2c5_nca9539_gpio 9 GPIO_ACTIVE_HIGH>;
startup-delay-us = <2000>;
off-on-delay-us = <16000>;
vin-supply = <&vcc12v_dcin>;
regulator-state-mem {
regulator-off-in-suspend;
@@ -220,6 +230,8 @@
regulator-max-microvolt = <5000000>;
enable-active-high;
gpio = <&i2c5_nca9539_gpio 10 GPIO_ACTIVE_HIGH>;
startup-delay-us = <2000>;
off-on-delay-us = <16000>;
vin-supply = <&vcc5v0_usb>;
};
@@ -232,6 +244,8 @@
regulator-max-microvolt = <5000000>;
enable-active-high;
gpio = <&i2c5_nca9539_gpio 11 GPIO_ACTIVE_HIGH>;
startup-delay-us = <2000>;
off-on-delay-us = <16000>;
vin-supply = <&vcc5v0_usb>;
};