rtc: max77686: Allow the max77686 rtc to wakeup the system

[cascardo/linux.git] / drivers / rtc / rtc-max77686.c

diff --git a/drivers/rtc/rtc-max77686.c b/drivers/rtc/rtc-max77686.c
index 9efe118..c1c6055 100644 (file)
--- a/drivers/rtc/rtc-max77686.c
+++ b/drivers/rtc/rtc-max77686.c
@@ -492,16 +492,11 @@ static int max77686_rtc_init_reg(struct max77686_rtc_info *info)
        return ret;
 }
 
-static struct regmap_config max77686_rtc_regmap_config = {
-       .reg_bits = 8,
-       .val_bits = 8,
-};
-
 static int max77686_rtc_probe(struct platform_device *pdev)
 {
        struct max77686_dev *max77686 = dev_get_drvdata(pdev->dev.parent);
        struct max77686_rtc_info *info;
-       int ret, virq;
+       int ret;
 
        dev_info(&pdev->dev, "%s\n", __func__);
 
@@ -514,14 +509,7 @@ static int max77686_rtc_probe(struct platform_device *pdev)
        info->dev = &pdev->dev;
        info->max77686 = max77686;
        info->rtc = max77686->rtc;
-       info->max77686->rtc_regmap = devm_regmap_init_i2c(info->max77686->rtc,
-                                        &max77686_rtc_regmap_config);
-       if (IS_ERR(info->max77686->rtc_regmap)) {
-               ret = PTR_ERR(info->max77686->rtc_regmap);
-               dev_err(info->max77686->dev, "Failed to allocate register map: %d\n",
-                               ret);
-               return ret;
-       }
+
        platform_set_drvdata(pdev, info);
 
        ret = max77686_rtc_init_reg(info);
@@ -550,15 +538,16 @@ static int max77686_rtc_probe(struct platform_device *pdev)
                        ret = -EINVAL;
                goto err_rtc;
        }
-       virq = irq_create_mapping(max77686->irq_domain, MAX77686_RTCIRQ_RTCA1);
-       if (!virq) {
+
+       info->virq = regmap_irq_get_virq(max77686->rtc_irq_data,
+                                        MAX77686_RTCIRQ_RTCA1);
+       if (!info->virq) {
                ret = -ENXIO;
                goto err_rtc;
        }
-       info->virq = virq;
 
-       ret = devm_request_threaded_irq(&pdev->dev, virq, NULL,
-                               max77686_rtc_alarm_irq, 0, "rtc-alarm0", info);
+       ret = devm_request_threaded_irq(&pdev->dev, info->virq, NULL,
+                               max77686_rtc_alarm_irq, 0, "rtc-alarm1", info);
        if (ret < 0)
                dev_err(&pdev->dev, "Failed to request alarm IRQ: %d: %d\n",
                        info->virq, ret);
@@ -594,6 +583,33 @@ static void max77686_rtc_shutdown(struct platform_device *pdev)
 #endif /* MAX77686_RTC_WTSR_SMPL */
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int max77686_rtc_suspend(struct device *dev)
+{
+       if (device_may_wakeup(dev)) {
+               struct max77686_rtc_info *info = dev_get_drvdata(dev);
+
+               return enable_irq_wake(info->virq);
+       }
+
+       return 0;
+}
+
+static int max77686_rtc_resume(struct device *dev)
+{
+       if (device_may_wakeup(dev)) {
+               struct max77686_rtc_info *info = dev_get_drvdata(dev);
+
+               return disable_irq_wake(info->virq);
+       }
+
+       return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(max77686_rtc_pm_ops,
+                        max77686_rtc_suspend, max77686_rtc_resume);
+
 static const struct platform_device_id rtc_id[] = {
        { "max77686-rtc", 0 },
        {},
@@ -603,6 +619,7 @@ static struct platform_driver max77686_rtc_driver = {
        .driver         = {
                .name   = "max77686-rtc",
                .owner  = THIS_MODULE,
+               .pm     = &max77686_rtc_pm_ops,
        },
        .probe          = max77686_rtc_probe,
        .shutdown       = max77686_rtc_shutdown,