On Wed, 2019-06-05 at 11:45 +0300, Andy Shevchenko wrote:

On Wed, May 29, 2019 at 10:44 AM Chunfeng Yun [off-list ref] wrote:

quoted

Due to the requirement of usb-connector.txt binding, the old way
using extcon to support USB Dual-Role switch is now deprecated
when use Type-B connector.
This patch introduces a driver of Type-B connector which typically
uses an input GPIO to detect USB ID pin, and try to replace the
function provided by extcon-usb-gpio driver

quoted

+static SIMPLE_DEV_PM_OPS(usb_conn_pm_ops,
+                        usb_conn_suspend, usb_conn_resume);
+
+#define DEV_PMS_OPS (IS_ENABLED(CONFIG_PM_SLEEP) ? &usb_conn_pm_ops : NULL)

Why this macro is needed?

Want to set .pm as NULL when CONFIG_PM_SLEEP is not enabled.

Thanks

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