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Subject[PATCH RESEND] mfd: cros_ec: Check DT node for usbpd-notify add
Date
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@chromium.org>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Fixes: 4602dce0361e ("mfd: cros_ec: Add cros-usbpd-notify subdevice")
---

This patch was originally part 3/4 of a series for the Chrome OS EC
USBPD notify driver:
https://patchwork.kernel.org/patch/11351271/

Resending this patch since the dependent components have been merged
into the upstream master tree or an immutable staging branch:
- Patches 1/4 and 4/4 of the original series have been included in
the platform/chrome maintainer's immutable staging branch:
https://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux.git/log/?h=ib-chrome-platform-power-supply-cros-usbpd-notify
- Patch 2/4 has been merged to the mainline kernel as
commit 4602dce0361ebc67b9bfbed9338eee588e3c7e7e.


Changes in RESEND:
- No changes.

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 39e61169505362..32c2b912b58b25 100644
--- a/drivers/mfd/cros_ec_dev.c
+++ b/drivers/mfd/cros_ec_dev.c
@@ -211,7 +211,7 @@ 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
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