[PATCH v1 4/9] gpiolib: Clear the gpio_device's fwnode initialized flag before adding

Saravana Kannan
2022-08-10T06:02:01Z

Registering an irqdomain sets the flag for the fwnode. But having the
flag set when a device is added is interpreted by fw_devlink to mean the
device has already been initialized and will never probe. This prevents
fw_devlink from creating device links with the gpio_device as a
supplier. So, clear the flag before adding the device.

Signed-off-by: Saravana Kannan <saravanak@google.com>
---
drivers/gpio/gpiolib.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index cc9c0a12259e..1d57d6f24632 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -522,6 +522,12 @@ static int gpiochip_setup_dev(struct gpio_device *gdev)
{
int ret;

+ /*
+ * If fwnode doesn't belong to another device, it's safe to clear its
+ * initialized flag.
+ */
+ if (!gdev->dev.fwnode->dev)
+ fwnode_dev_initialized(gdev->dev.fwnode, false);
ret = gcdev_register(gdev, gpio_devt);
if (ret)
return ret;
--
2.37.1.559.g78731f0fdb-goog