6.12-stable review patch. If anyone has any objections, please let me know.
------------------
From: Radhey Shyam Pandey <radhey.shyam.pandey@xxxxxxx>
commit ce15d6b3d5c3c6f78290066be0f0a4fd89cdeb5b upstream.
USB5744 SMBus initialization is done once in probe() and doing it in resume
is not supported so avoid going into suspend and reset the HUB.
There is a sysfs property 'always_powered_in_suspend' to implement this
feature but since default state should be set to a working configuration
so override this property value.
It fixes the suspend/resume testcase on Kria KR260 Robotics Starter Kit.
Fixes: 6782311d04df ("usb: misc: onboard_usb_dev: add Microchip usb5744 SMBus programming support")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xxxxxxx>
Link: https://lore.kernel.org/r/1733165302-1694891-1-git-send-email-radhey.shyam.pandey@xxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/misc/onboard_usb_dev.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/misc/onboard_usb_dev.c b/drivers/usb/misc/onboard_usb_dev.c
index 36b11127280f..75ac3c6aa92d 100644
--- a/drivers/usb/misc/onboard_usb_dev.c
+++ b/drivers/usb/misc/onboard_usb_dev.c
@@ -407,8 +407,10 @@ static int onboard_dev_probe(struct platform_device *pdev)
}
if (of_device_is_compatible(pdev->dev.of_node, "usb424,2744") ||
- of_device_is_compatible(pdev->dev.of_node, "usb424,5744"))
+ of_device_is_compatible(pdev->dev.of_node, "usb424,5744")) {
err = onboard_dev_5744_i2c_init(client);
+ onboard_dev->always_powered_in_suspend = true;
+ }
put_device(&client->dev);
if (err < 0)
--
2.47.1
