[PATCH v2 2/5] hwmon: pmbus: max15301: Use generic code

[Patrick Rudolph <patrick.rudolph@xxxxxxxxxxxxx>]

Use the generic pmbus bus access delay.

Signed-off-by: Patrick Rudolph <patrick.rudolph@xxxxxxxxxxxxx>
---
 drivers/hwmon/pmbus/max15301.c | 92 +---------------------------------
 1 file changed, 1 insertion(+), 91 deletions(-)

diff --git a/drivers/hwmon/pmbus/max15301.c b/drivers/hwmon/pmbus/max15301.c
index 986404fe6a31..f5367a7bc0f5 100644
--- a/drivers/hwmon/pmbus/max15301.c
+++ b/drivers/hwmon/pmbus/max15301.c
@@ -31,8 +31,6 @@ MODULE_DEVICE_TABLE(i2c, max15301_id);
 
 struct max15301_data {
 	int id;
-	ktime_t access;		/* Chip access time */
-	int delay;		/* Delay between chip accesses in us */
 	struct pmbus_driver_info info;
 };
 
@@ -55,89 +53,6 @@ static struct max15301_data max15301_data = {
 	}
 };
 
-/* This chip needs a delay between accesses */
-static inline void max15301_wait(const struct max15301_data *data)
-{
-	if (data->delay) {
-		s64 delta = ktime_us_delta(ktime_get(), data->access);
-
-		if (delta < data->delay)
-			udelay(data->delay - delta);
-	}
-}
-
-static int max15301_read_word_data(struct i2c_client *client, int page,
-				   int phase, int reg)
-{
-	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
-	struct max15301_data *data = to_max15301_data(info);
-	int ret;
-
-	if (page > 0)
-		return -ENXIO;
-
-	if (reg >= PMBUS_VIRT_BASE)
-		return -ENXIO;
-
-	max15301_wait(data);
-	ret = pmbus_read_word_data(client, page, phase, reg);
-	data->access = ktime_get();
-
-	return ret;
-}
-
-static int max15301_read_byte_data(struct i2c_client *client, int page, int reg)
-{
-	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
-	struct max15301_data *data = to_max15301_data(info);
-	int ret;
-
-	if (page > 0)
-		return -ENXIO;
-
-	max15301_wait(data);
-	ret = pmbus_read_byte_data(client, page, reg);
-	data->access = ktime_get();
-
-	return ret;
-}
-
-static int max15301_write_word_data(struct i2c_client *client, int page, int reg,
-				    u16 word)
-{
-	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
-	struct max15301_data *data = to_max15301_data(info);
-	int ret;
-
-	if (page > 0)
-		return -ENXIO;
-
-	if (reg >= PMBUS_VIRT_BASE)
-		return -ENXIO;
-
-	max15301_wait(data);
-	ret = pmbus_write_word_data(client, page, reg, word);
-	data->access = ktime_get();
-
-	return ret;
-}
-
-static int max15301_write_byte(struct i2c_client *client, int page, u8 value)
-{
-	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
-	struct max15301_data *data = to_max15301_data(info);
-	int ret;
-
-	if (page > 0)
-		return -ENXIO;
-
-	max15301_wait(data);
-	ret = pmbus_write_byte(client, page, value);
-	data->access = ktime_get();
-
-	return ret;
-}
-
 static int max15301_probe(struct i2c_client *client)
 {
 	int status;
@@ -164,12 +79,7 @@ static int max15301_probe(struct i2c_client *client)
 		return -ENODEV;
 	}
 
-	max15301_data.delay = delay;
-
-	info->read_byte_data = max15301_read_byte_data;
-	info->read_word_data = max15301_read_word_data;
-	info->write_byte = max15301_write_byte;
-	info->write_word_data = max15301_write_word_data;
+	info->access_delay = delay;
 
 	return pmbus_do_probe(client, info);
 }
-- 
2.45.2