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fiq debugger: add resume for debug uart

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The uart power domain is off after suspend, which makes
uart registers reseted. So, when resume, uart driver gets
wrong registers value, and enters endless loop.

Change-Id: I90eb805d85cc27486e94949b9a84c4f8a12430b7
Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
This commit is contained in:
Huibin Hong
2016-06-22 18:21:29 +08:00
committed by Huang, Tao
parent 8afd25d646
commit 0e7d751d6c
1 changed files with 7 additions and 0 deletions
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7
drivers/soc/rockchip/rk_fiq_debugger.c
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@@ -177,6 +177,12 @@ static void debug_flush(struct platform_device *pdev)
cpu_relax();
}
static int uart_dev_resume(struct platform_device *pdev)
{
debug_port_init(pdev);
return 0;
}
#ifdef CONFIG_RK_CONSOLE_THREAD
#define FIFO_SIZE SZ_64K
static DEFINE_KFIFO(fifo, unsigned char, FIFO_SIZE);
@@ -321,6 +327,7 @@ void rk_serial_debug_init(void __iomem *base, int irq, int signal_irq,
t->pdata.uart_init = debug_port_init;
t->pdata.uart_getc = debug_getc;
t->pdata.uart_putc = debug_putc;
t->pdata.uart_dev_resume = uart_dev_resume;
#ifndef CONFIG_RK_CONSOLE_THREAD
t->pdata.uart_flush = debug_flush;
#endif