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huangcm

2025-07-17 bb8fc6a4aed8cd6181f0a51e6931d8be21011a60

 longan/kernel/linux-4.9/drivers/tty/serial/sunxi-uart.c
.. .. @@ -1880,6 +1880,10 @@
1880 1880  	pdev->dev.init_name = sw_uport->name;
1881 1881  	pdev->dev.platform_data = sw_uport->pdata;
1882 1882  
1883 +    if( pdev->id == 0) {
1884 +        msleep(50); // for uart0 boot pro
1885 +    }
1886 +
1883 1887  	snprintf(uart_para, sizeof(uart_para), "uart%d_regulator", pdev->id);
1884 1888  	ret = of_property_read_string(np, uart_para, &uart_string);
1885 1889  	if (ret)

..	..	@@ -1880,6 +1880,10 @@
1880	1880	pdev->dev.init_name = sw_uport->name;
1881	1881	pdev->dev.platform_data = sw_uport->pdata;
1882	1882
	1883	+ if( pdev->id == 0) {
	1884	+ msleep(50); // for uart0 boot pro
	1885	+ }
	1886	+
1883	1887	snprintf(uart_para, sizeof(uart_para), "uart%d_regulator", pdev->id);
1884	1888	ret = of_property_read_string(np, uart_para, &uart_string);
1885	1889	if (ret)