FAILED: patch "[PATCH] iio:proximity:sx_common: Fix device property parsing on DT" failed to apply to 5.15-stable tree

[<gregkh@linuxfoundation.org>]

The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 74a53a959028e5f28e3c0e9445a876e5c8da147c Mon Sep 17 00:00:00 2001
From: Stephen Boyd <swboyd@chromium.org>
Date: Thu, 31 Mar 2022 14:04:25 -0700
Subject: [PATCH] iio:proximity:sx_common: Fix device property parsing on DT
 systems

After commit 7a3605bef878 ("iio: sx9310: Support ACPI property") we
started using the 'indio_dev->dev' to extract device properties for
various register settings in sx9310_get_default_reg(). This broke DT
based systems because dev_fwnode() used in the device_property*() APIs
can't find an 'of_node'. That's because the 'indio_dev->dev.of_node'
pointer isn't set until iio_device_register() is called. Set the pointer
earlier, next to where the ACPI companion is set, so that the device
property APIs work on DT systems.

Cc: Gwendal Grignou <gwendal@chromium.org>
Fixes: 7a3605bef878 ("iio: sx9310: Support ACPI property")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Link: https://lore.kernel.org/r/20220331210425.3908278-1-swboyd@chromium.org
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/proximity/sx_common.c b/drivers/iio/proximity/sx_common.c
index a7c07316a0a9..8ad814d96b7e 100644
--- a/drivers/iio/proximity/sx_common.c
+++ b/drivers/iio/proximity/sx_common.c
@@ -521,6 +521,7 @@ int sx_common_probe(struct i2c_client *client,
 		return dev_err_probe(dev, ret, "error reading WHOAMI\n");
 
 	ACPI_COMPANION_SET(&indio_dev->dev, ACPI_COMPANION(dev));
+	indio_dev->dev.of_node = client->dev.of_node;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 
 	indio_dev->channels =  data->chip_info->iio_channels;