[PATCH v6 3/7] mfd: mp2629: introduce chip id machanism to distinguish chip

From: Saravanan Sekar <sravanhome@gmail.com>
To: sre@kernel.org, lee@kernel.org, jic23@kernel.org,
	lars@metafoo.de, andy.shevchenko@gmail.com
Cc: linux-pm@vger.kernel.org, linux-iio@vger.kernel.org,
	Saravanan Sekar <sravanhome@gmail.com>
Subject: [PATCH v6 3/7] mfd: mp2629: introduce chip id machanism to distinguish chip
Date: Wed, 23 Nov 2022 18:54:21 +0100	[thread overview]
Message-ID: <20221123175425.564042-4-sravanhome@gmail.com> (raw)
In-Reply-To: <20221123175425.564042-1-sravanhome@gmail.com>

Introduce chip id machanism to distinguish chip

Signed-off-by: Saravanan Sekar <sravanhome@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
---
 drivers/mfd/mp2629.c       | 4 +++-
 include/linux/mfd/mp2629.h | 5 +++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/mfd/mp2629.c b/drivers/mfd/mp2629.c
index f4c5aa06f38c..a3fc02ad5ec1 100644
--- a/drivers/mfd/mp2629.c
+++ b/drivers/mfd/mp2629.c
@@ -13,6 +13,7 @@
 #include <linux/mfd/mp2629.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/property.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
 
@@ -43,6 +44,7 @@ static int mp2629_probe(struct i2c_client *client)
 		return -ENOMEM;
 
 	ddata->dev = &client->dev;
+	ddata->chip_id = (uintptr_t)device_get_match_data(&client->dev);
 	i2c_set_clientdata(client, ddata);
 
 	ddata->regmap = devm_regmap_init_i2c(client, &mp2629_regmap_config);
@@ -60,7 +62,7 @@ static int mp2629_probe(struct i2c_client *client)
 }
 
 static const struct of_device_id mp2629_of_match[] = {
-	{ .compatible = "mps,mp2629"},
+	{ .compatible = "mps,mp2629", .data = (void *)CHIP_ID_MP2629 },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, mp2629_of_match);
diff --git a/include/linux/mfd/mp2629.h b/include/linux/mfd/mp2629.h
index 89b706900b57..072c8181b48b 100644
--- a/include/linux/mfd/mp2629.h
+++ b/include/linux/mfd/mp2629.h
@@ -9,9 +9,14 @@
 #include <linux/device.h>
 #include <linux/regmap.h>
 
+enum mp2xx_chip_id {
+	CHIP_ID_MP2629,
+};
+
 struct mp2629_data {
 	struct device *dev;
 	struct regmap *regmap;
+	enum mp2xx_chip_id chip_id;
 };
 
 enum mp2629_adc_chan {
-- 
2.34.1

