linux-kernel - [PATCH v8 3/4] mfd: cros_ec: Check DT node for usbpd-notify add

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Date:   Fri, 24 Jan 2020 15:18:36 -0800
From:   Prashant Malani <pmalani@...omium.org>
To:     enric.balletbo@...labora.com, groeck@...omium.org,
        bleung@...omium.org, lee.jones@...aro.org, sre@...nel.org
Cc:     linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        Prashant Malani <pmalani@...omium.org>
Subject: [PATCH v8 3/4] mfd: cros_ec: Check DT node for usbpd-notify add

Add a check to ensure there is indeed an EC device tree entry before
adding the cros-usbpd-notify device. This covers configs where both
CONFIG_ACPI and CONFIG_OF are defined, but the EC device is defined
using device tree and not in ACPI.

Signed-off-by: Prashant Malani <pmalani@...omium.org>
---

Changes in v8:
- Patch first introduced in v8 of the series.

 drivers/mfd/cros_ec_dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c
index d0c28a4c10ad0..411e80fc9a066 100644
--- a/drivers/mfd/cros_ec_dev.c
+++ b/drivers/mfd/cros_ec_dev.c
@@ -212,7 +212,7 @@ static int ec_device_probe(struct platform_device *pdev)
 	 * explicitly added on platforms that don't have the PD notifier ACPI
 	 * device entry defined.
 	 */
-	if (IS_ENABLED(CONFIG_OF)) {
+	if (IS_ENABLED(CONFIG_OF) && ec->ec_dev->dev->of_node) {
 		if (cros_ec_check_features(ec, EC_FEATURE_USB_PD)) {
 			retval = mfd_add_hotplug_devices(ec->dev,
 					cros_usbpd_notify_cells,
-- 
2.25.0.341.g760bfbb309-goog