问题描述:就是在bootlogo-kernellogo的期间会黑屏一下
很简单的问题,首先就想到背光使能,万用表正常;然后测试PWM,果然就是他
然后开始查询什么问题导致的,不断地查看打印后发先是加载了IO复用的功能后就黑了,然后在PWM驱动加载使能之后就显示正常了;
compatible = “sstar-padmux”;//这个驱动;
// ssd202dkernelarcharmbootdtsinfinity2m-ssc011a-s01a-padmux-display.dtsi
/*
* infinity2m-ssc011a-s01a-padmux-display.dtsi- Sigmastar
*
* Copyright (c) [2019~2020] SigmaStar Technology.
*
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License version 2 for more details.
*
*/
#include 服务器托管，北京服务器托管，服务器租用 http://www.fwqtg.net
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