linux-kernel - [PATCH 2/2] rtc: rx6110: add ACPI bindings to I2C

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Message-Id: <20201104102629.3422048-3-ch@denx.de>
Date:   Wed,  4 Nov 2020 11:26:29 +0100
From:   Claudius Heine <ch@...x.de>
To:     Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        linux-rtc@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Henning Schild <henning.schild@...mens.com>,
        Johannes Hahn <johannes-hahn@...mens.com>,
        Claudius Heine <ch@...x.de>
Subject: [PATCH 2/2] rtc: rx6110: add ACPI bindings to I2C

From: Johannes Hahn <johannes-hahn@...mens.com>

This allows the RX6110 driver to be automatically assigned to the right
device on the I2C bus.

Signed-off-by: Johannes Hahn <johannes-hahn@...mens.com>
Signed-off-by: Claudius Heine <ch@...x.de>
Signed-off-by: Henning Schild <henning.schild@...mens.com>
---
 drivers/rtc/rtc-rx6110.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/rtc/rtc-rx6110.c b/drivers/rtc/rtc-rx6110.c
index ca9f486236d4..6c0c7e5a7065 100644
--- a/drivers/rtc/rtc-rx6110.c
+++ b/drivers/rtc/rtc-rx6110.c
@@ -13,6 +13,7 @@
 #include <linux/of_gpio.h>
 #include <linux/regmap.h>
 #include <linux/rtc.h>
+#include <linux/acpi.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/spi/spi.h>
@@ -455,6 +456,14 @@ static int rx6110_i2c_probe(struct i2c_client *client,
 	return 0;
 }
 
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id rx6110_i2c_acpi_match[] = {
+	{ "RX6110SA", },
+	{ },
+};
+MODULE_DEVICE_TABLE(acpi, rx6110_i2c_acpi_match);
+#endif
+
 static const struct i2c_device_id rx6110_i2c_id[] = {
 	{ "rx6110", 0 },
 	{ }
@@ -464,6 +473,9 @@ MODULE_DEVICE_TABLE(i2c, rx6110_i2c_id);
 static struct i2c_driver rx6110_i2c_driver = {
 	.driver = {
 		.name = RX6110_DRIVER_NAME,
+#ifdef CONFIG_ACPI
+		.acpi_match_table = ACPI_PTR(rx6110_i2c_acpi_match),
+#endif
 	},
 	.probe		= rx6110_i2c_probe,
 	.id_table	= rx6110_i2c_id,
-- 
2.20.1