greybus: arche-platform: Assert wake/detect after SVC reset without delay (16fe18ca) · Commits · 戴 / test

drivers/staging/greybus/arche-platform.c

+13 −0

Original line number	Diff line number	Diff line
		@@ -115,6 +115,16 @@ static void hub_conf_delayed_work(struct work_struct *work)
		dev_warn(arche_pdata->dev, "failed to control hub device\n");
		}

		static void assert_wakedetect(struct arche_platform_drvdata *arche_pdata)
		{
		/* Assert wake/detect = Detect event from AP */
		gpio_direction_output(arche_pdata->wake_detect_gpio, 1);

		/* Enable interrupt here, to read event back from SVC */
		gpio_direction_input(arche_pdata->wake_detect_gpio);
		enable_irq(arche_pdata->wake_detect_irq);
		}

		static irqreturn_t arche_platform_wd_irq_thread(int irq, void *devid)
		{
		struct arche_platform_drvdata *arche_pdata = devid;
		@@ -297,6 +307,8 @@ static ssize_t state_store(struct device *dev,
		return count;

		ret = arche_platform_coldboot_seq(arche_pdata);

		assert_wakedetect(arche_pdata);
		} else if (sysfs_streq(buf, "standby")) {
		if (arche_pdata->state == ARCHE_PLATFORM_STATE_STANDBY)
		return count;
		@@ -482,6 +494,7 @@ static int arche_platform_probe(struct platform_device *pdev)
		goto err_populate;
		}

		assert_wakedetect(arche_pdata);
		INIT_DELAYED_WORK(&arche_pdata->delayed_work, hub_conf_delayed_work);

		dev_info(dev, "Device registered successfully\n");