From 663bb7b9795fcd8b039b5a43990857580f4b816c Mon Sep 17 00:00:00 2001
From: Chris Pringle <chris.pringle@phabrix.com>
Date: Thu, 11 Aug 2022 09:21:41 +0100
Subject: [PATCH] i2c: kempld: Support ACPI I2C device declaration

Adds an ACPI companion to the KEMPLD I2C driver so that it correctly
detects any I2C devices nested under the KEMPLD's ACPI node (SBRG.CPLD).

This allows I2C devices attached to the KEMPLD I2C adapter to be declared
and instantiated via ACPI.

Signed-off-by: Chris Pringle <chris.pringle@phabrix.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
---
 drivers/i2c/busses/i2c-kempld.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/i2c/busses/i2c-kempld.c b/drivers/i2c/busses/i2c-kempld.c
index 5bbb7f0d7852a..cf857cf225070 100644
--- a/drivers/i2c/busses/i2c-kempld.c
+++ b/drivers/i2c/busses/i2c-kempld.c
@@ -303,6 +303,7 @@ static int kempld_i2c_probe(struct platform_device *pdev)
 	i2c->dev = &pdev->dev;
 	i2c->adap = kempld_i2c_adapter;
 	i2c->adap.dev.parent = i2c->dev;
+	ACPI_COMPANION_SET(&i2c->adap.dev, ACPI_COMPANION(&pdev->dev));
 	i2c_set_adapdata(&i2c->adap, i2c);
 	platform_set_drvdata(pdev, i2c);