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Message-ID: <20240902075319.585656-2-patrick.rudolph@9elements.com>
Date: Mon, 2 Sep 2024 09:53:13 +0200
From: Patrick Rudolph <patrick.rudolph@...ements.com>
To: Daniel Nilsson <daniel.nilsson@...x.com>
Cc: jdelvare@...e.com,
linux@...ck-us.net,
Patrick Rudolph <patrick.rudolph@...ements.com>,
linux-hwmon@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v3 2/5] hwmon: pmbus: max15301: Use generic code
Use the generic pmbus bus access delay.
Signed-off-by: Patrick Rudolph <patrick.rudolph@...ements.com>
---
Changelog v2:
- No change
Changelog v3:
- Added changelog
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
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