[PATCH v2 1/5] rtc: isl12022: Get rid of unneeded private struct isl12022

Andy Shevchenko
2023-01-10T14:08:58Z

First of all, the struct rtc_device pointer is kept in the managed
resources, no need to keep it outside (no users in the driver).

Second, replace private struct isl12022 with a regmap.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
---
drivers/rtc/rtc-isl12022.c | 56 ++++++++++++++------------------------
1 file changed, 21 insertions(+), 35 deletions(-)

diff --git a/drivers/rtc/rtc-isl12022.c b/drivers/rtc/rtc-isl12022.c
index a3b0de3393f5..44058fa27277 100644
--- a/drivers/rtc/rtc-isl12022.c
+++ b/drivers/rtc/rtc-isl12022.c
@@ -46,11 +46,6 @@

static struct i2c_driver isl12022_driver;

-struct isl12022 {
- struct rtc_device *rtc;
- struct regmap *regmap;
-};
-
static umode_t isl12022_hwmon_is_visible(const void *data,
enum hwmon_sensor_types type,
u32 attr, int channel)
@@ -67,8 +62,7 @@ static umode_t isl12022_hwmon_is_visible(const void *data,
*/
static int isl12022_hwmon_read_temp(struct device *dev, long *mC)
{
- struct isl12022 *isl12022 = dev_get_drvdata(dev);
- struct regmap *regmap = isl12022->regmap;
+ struct regmap *regmap = dev_get_drvdata(dev);
u8 temp_buf[2];
int temp, ret;

@@ -115,23 +109,21 @@ static const struct hwmon_chip_info isl12022_hwmon_chip_info = {

static void isl12022_hwmon_register(struct device *dev)
{
- struct isl12022 *isl12022;
+ struct regmap *regmap = dev_get_drvdata(dev);
struct device *hwmon;
int ret;

if (!IS_REACHABLE(CONFIG_HWMON))
return;

- isl12022 = dev_get_drvdata(dev);
-
- ret = regmap_update_bits(isl12022->regmap, ISL12022_REG_BETA,
+ ret = regmap_update_bits(regmap, ISL12022_REG_BETA,
ISL12022_BETA_TSE, ISL12022_BETA_TSE);
if (ret) {
dev_warn(dev, "unable to enable temperature sensor\n");
return;
}

- hwmon = devm_hwmon_device_register_with_info(dev, "isl12022", isl12022,
+ hwmon = devm_hwmon_device_register_with_info(dev, "isl12022", regmap,
&isl12022_hwmon_chip_info,
NULL);
if (IS_ERR(hwmon))
@@ -144,8 +136,7 @@ static void isl12022_hwmon_register(struct device *dev)
*/
static int isl12022_rtc_read_time(struct device *dev, struct rtc_time *tm)
{
- struct isl12022 *isl12022 = dev_get_drvdata(dev);
- struct regmap *regmap = isl12022->regmap;
+ struct regmap *regmap = dev_get_drvdata(dev);
uint8_t buf[ISL12022_REG_INT + 1];
int ret;

@@ -190,8 +181,7 @@ static int isl12022_rtc_read_time(struct device *dev, struct rtc_time *tm)

static int isl12022_rtc_set_time(struct device *dev, struct rtc_time *tm)
{
- struct isl12022 *isl12022 = dev_get_drvdata(dev);
- struct regmap *regmap = isl12022->regmap;
+ struct regmap *regmap = dev_get_drvdata(dev);
int ret;
uint8_t buf[ISL12022_REG_DW + 1];

@@ -218,8 +208,7 @@ static int isl12022_rtc_set_time(struct device *dev, struct rtc_time *tm)

buf[ISL12022_REG_DW] = tm->tm_wday & 0x07;

- return regmap_bulk_write(isl12022->regmap, ISL12022_REG_SC,
- buf, sizeof(buf));
+ return regmap_bulk_write(regmap, ISL12022_REG_SC, buf, sizeof(buf));
}

static const struct rtc_class_ops isl12022_rtc_ops = {
@@ -235,34 +224,31 @@ static const struct regmap_config regmap_config = {

static int isl12022_probe(struct i2c_client *client)
{
- struct isl12022 *isl12022;
+ struct rtc_device *rtc;
+ struct regmap *regmap;

if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
return -ENODEV;

- isl12022 = devm_kzalloc(&client->dev, sizeof(struct isl12022),
- GFP_KERNEL);
- if (!isl12022)
- return -ENOMEM;
- dev_set_drvdata(&client->dev, isl12022);
-
- isl12022->regmap = devm_regmap_init_i2c(client, &regmap_config);
- if (IS_ERR(isl12022->regmap)) {
+ regmap = devm_regmap_init_i2c(client, &regmap_config);
+ if (IS_ERR(regmap)) {
dev_err(&client->dev, "regmap allocation failed\n");
- return PTR_ERR(isl12022->regmap);
+ return PTR_ERR(regmap);
}

+ dev_set_drvdata(&client->dev, regmap);
+
isl12022_hwmon_register(&client->dev);

- isl12022->rtc = devm_rtc_allocate_device(&client->dev);
- if (IS_ERR(isl12022->rtc))
- return PTR_ERR(isl12022->rtc);
+ rtc = devm_rtc_allocate_device(&client->dev);
+ if (IS_ERR(rtc))
+ return PTR_ERR(rtc);

- isl12022->rtc->ops = &isl12022_rtc_ops;
- isl12022->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;
- isl12022->rtc->range_max = RTC_TIMESTAMP_END_2099;
+ rtc->ops = &isl12022_rtc_ops;
+ rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;
+ rtc->range_max = RTC_TIMESTAMP_END_2099;

- return devm_rtc_register_device(isl12022->rtc);
+ return devm_rtc_register_device(rtc);
}

#ifdef CONFIG_OF
--
2.39.0