linux-kernel - [PATCH] hwmon: (pmbus_core) Allow to hook PMBUS_SMBALERT

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Date: Tue, 30 Jan 2024 20:59:03 +0530
From: Naresh Solanki <naresh.solanki@...ements.com>
To: Guenter Roeck <linux@...ck-us.net>,
	Jean Delvare <jdelvare@...e.com>
Cc: mazziesaccount@...il.com,
	Patrick Rudolph <patrick.rudolph@...ements.com>,
	Naresh Solanki <naresh.solanki@...ements.com>,
	linux-hwmon@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] hwmon: (pmbus_core) Allow to hook PMBUS_SMBALERT_MASK

From: Patrick Rudolph <patrick.rudolph@...ements.com>

Use _pmbus_write_word_data to allow intercepting writes to
PMBUS_SMBALERT_MASK in the custom chip specific code.

This is required for MP2971/MP2973 which doesn't follow the
PMBUS specification for PMBUS_SMBALERT_MASK.

Signed-off-by: Patrick Rudolph <patrick.rudolph@...ements.com>
Signed-off-by: Naresh Solanki <naresh.solanki@...ements.com>
---
 drivers/hwmon/pmbus/pmbus_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
index 1363d9f89181..cb4c65a7f288 100644
--- a/drivers/hwmon/pmbus/pmbus_core.c
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -3188,7 +3188,7 @@ static int pmbus_regulator_notify(struct pmbus_data *data, int page, int event)
 
 static int pmbus_write_smbalert_mask(struct i2c_client *client, u8 page, u8 reg, u8 val)
 {
-	return pmbus_write_word_data(client, page, PMBUS_SMBALERT_MASK, reg | (val << 8));
+	return _pmbus_write_word_data(client, page, PMBUS_SMBALERT_MASK, reg | (val << 8));
 }
 
 static irqreturn_t pmbus_fault_handler(int irq, void *pdata)

base-commit: 861c0981648f5b64c86fd028ee622096eb7af05a
-- 
2.42.0