#include <linux/module.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
+#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/serial_8250.h>
#ifdef CONFIG_SERIAL_8250_DMA
enum dma_rx_status rx_status;
#endif
+ int rx_wakeup_irq;
};
/* flow control mode */
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
+ data->rx_wakeup_irq = platform_get_irq(pdev, 1);
+
return 0;
}
static int __maybe_unused mtk8250_suspend(struct device *dev)
{
struct mtk8250_data *data = dev_get_drvdata(dev);
+ int irq = data->rx_wakeup_irq;
+ int err;
serial8250_suspend_port(data->line);
+ pinctrl_pm_select_sleep_state(dev);
+ if (irq >= 0) {
+ err = enable_irq_wake(irq);
+ if (err) {
+ dev_err(dev,
+ "failed to enable irq wake on IRQ %d: %d\n",
+ irq, err);
+ pinctrl_pm_select_default_state(dev);
+ serial8250_resume_port(data->line);
+ return err;
+ }
+ }
+
return 0;
}
static int __maybe_unused mtk8250_resume(struct device *dev)
{
struct mtk8250_data *data = dev_get_drvdata(dev);
+ int irq = data->rx_wakeup_irq;
+
+ if (irq >= 0)
+ disable_irq_wake(irq);
+ pinctrl_pm_select_default_state(dev);
serial8250_resume_port(data->line);