linux-kernel - [PATCH v2 1/3] hwmon: (pmbus/mpq7932) Get page count based on chip info

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Date:   Wed, 27 Sep 2023 09:09:51 +0530
From:   Saravanan Sekar <saravanan@...umiz.com>
To:     sravanhome@...il.com, lgirdwood@...il.com, broonie@...nel.org,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org, linux@...ck-us.net, jdelvare@...e.com
Cc:     linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-hwmon@...r.kernel.org,
        Saravanan Sekar <saravanan@...umiz.com>
Subject: [PATCH v2 1/3] hwmon: (pmbus/mpq7932) Get page count based on chip info

Get page count using compatible match to support the series of chipsets
which differs in number of regualator/page.

Signed-off-by: Saravanan Sekar <saravanan@...umiz.com>
---
 drivers/hwmon/pmbus/mpq7932.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/hwmon/pmbus/mpq7932.c b/drivers/hwmon/pmbus/mpq7932.c
index 6c62f01da7c6..723c314a57a2 100644
--- a/drivers/hwmon/pmbus/mpq7932.c
+++ b/drivers/hwmon/pmbus/mpq7932.c
@@ -105,7 +105,7 @@ static int mpq7932_probe(struct i2c_client *client)
 		return -ENOMEM;
 
 	info = &data->info;
-	info->pages = MPQ7932_NUM_PAGES;
+	info->pages = (int)(unsigned long)device_get_match_data(&client->dev);
 	info->format[PSC_VOLTAGE_OUT] = direct;
 	info->m[PSC_VOLTAGE_OUT] = 160;
 	info->b[PSC_VOLTAGE_OUT] = -33;
@@ -115,7 +115,7 @@ static int mpq7932_probe(struct i2c_client *client)
 	}
 
 #if IS_ENABLED(CONFIG_SENSORS_MPQ7932_REGULATOR)
-	info->num_regulators = ARRAY_SIZE(mpq7932_regulators_desc);
+	info->num_regulators = info->pages;
 	info->reg_desc = mpq7932_regulators_desc;
 #endif
 
@@ -129,7 +129,7 @@ static int mpq7932_probe(struct i2c_client *client)
 }
 
 static const struct of_device_id mpq7932_of_match[] = {
-	{ .compatible = "mps,mpq7932"},
+	{ .compatible = "mps,mpq7932", .data = (void *)MPQ7932_NUM_PAGES },
 	{},
 };
 MODULE_DEVICE_TABLE(of, mpq7932_of_match);
-- 
2.34.1