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新建 #162

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rk3568 gpio休眠唤醒不了

Added by 余 顺 over 2 years ago. Updated over 1 year ago.

Status:
新建
Priority:
普通
Assignee:
-
Category:
gpio
Target version:
rk3568-buildroot
Start date:
12/12/2022
Due date:
% Done:

0%

Estimated time:

Description

版型：rp-box-rk3568

系统：buildroor

需求：休眠唤醒

尝试操作：
1.rk3568.dtsi中默认包含了RKPM_GPIO_WAKEUP_EN (GPIO0的唤醒)。添加RKPM_GPIO_WAKEUP_EN之后

2.在sdk中rk3568-linux.dtsi中设置了使能

3.系统可以在配置echo mem >sys/power/state的10s后自动恢复，根据GPIO的配置说明

4.将gpio0b6设置为WAKEUP的key

5.通过echo mem > /sys/power/state 使系统休眠后，按键唤醒无效果，通过读取GPIO0_B6的值可以看到gpio的输入是有改变的

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clipboard-202212121203-3hqa0.png (227 KB) clipboard-202212121203-3hqa0.png 余 顺, 12/12/2022 02:56 AM
clipboard-202212121207-0opok.png (22.8 KB) clipboard-202212121207-0opok.png 余 顺, 12/12/2022 02:59 AM
clipboard-202212121209-vrftu.jpg (57.7 KB) clipboard-202212121209-vrftu.jpg 余 顺, 12/12/2022 03:02 AM
clipboard-202212121232-y6d5z.png (61.7 KB) clipboard-202212121232-y6d5z.png 余 顺, 12/12/2022 03:25 AM
clipboard-202212121235-rdpyh.png (115 KB) clipboard-202212121235-rdpyh.png 余 顺, 12/12/2022 03:27 AM
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 #1

Updated by 谭 志豪 over 2 years ago

GPIO唤醒系统配置
参考驱动：kernel/drivers/input/keyboard/gpio_keys.c

参考DTS:
gpio_keys: gpio-keys {
status = "disabled";
compatible = "gpio-keys";
autorepeat;
BACK {
label = "GPIO Key Home";
debounce-interval = <10>;
interrupt-parent = <&gpio0>;
interrupts = <13 IRQ_TYPE_LEVEL_LOW>;
linux,input-type = <EV_KEY>;
linux,code = <KEY_BACK>;
gpio-key,wakeup;
};
};

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 #2

Updated by 余 顺 over 2 years ago

需要注意不能通过rp-gpio 控对应的gpio口，否则上述的修改不生效

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 #3

Updated by 余 顺 over 1 year ago

gpio 中断配置 可以参考 sdk 源码中docs 目录下的 Rockchip_Developer_Guide_Linux_Pinctrl_CN.pdf

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