* [PATCH v2 1/2] rtc: max77686: convert to devm_i2c_new_dummy_device()
[not found] <20190830133124.21633-1-wsa+renesas@sang-engineering.com>
@ 2019-08-30 13:31 ` Wolfram Sang
2019-09-01 9:02 ` Alexandre Belloni
2019-08-30 13:31 ` [PATCH v2 2/2] rtc: s35390a: " Wolfram Sang
1 sibling, 1 reply; 4+ messages in thread
From: Wolfram Sang @ 2019-08-30 13:31 UTC (permalink / raw)
To: linux-i2c
Cc: linux-rtc, Wolfram Sang, Chanwoo Choi, Krzysztof Kozlowski,
Bartlomiej Zolnierkiewicz, Alessandro Zummo, Alexandre Belloni,
linux-kernel
I was about to simplify the call to i2c_unregister_device() when I
realized that converting to devm_i2c_new_dummy_device() will simplify
the driver a lot. So I took this approach.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
drivers/rtc/rtc-max77686.c | 17 ++++-------------
1 file changed, 4 insertions(+), 13 deletions(-)
diff --git a/drivers/rtc/rtc-max77686.c b/drivers/rtc/rtc-max77686.c
index 7a98e0744878..d5a0e27dd0a0 100644
--- a/drivers/rtc/rtc-max77686.c
+++ b/drivers/rtc/rtc-max77686.c
@@ -690,8 +690,8 @@ static int max77686_init_rtc_regmap(struct max77686_rtc_info *info)
goto add_rtc_irq;
}
- info->rtc = i2c_new_dummy_device(parent_i2c->adapter,
- info->drv_data->rtc_i2c_addr);
+ info->rtc = devm_i2c_new_dummy_device(info->dev, parent_i2c->adapter,
+ info->drv_data->rtc_i2c_addr);
if (IS_ERR(info->rtc)) {
dev_err(info->dev, "Failed to allocate I2C device for RTC\n");
return PTR_ERR(info->rtc);
@@ -702,7 +702,7 @@ static int max77686_init_rtc_regmap(struct max77686_rtc_info *info)
if (IS_ERR(info->rtc_regmap)) {
ret = PTR_ERR(info->rtc_regmap);
dev_err(info->dev, "Failed to allocate RTC regmap: %d\n", ret);
- goto err_unregister_i2c;
+ return ret;
}
add_rtc_irq:
@@ -712,15 +712,10 @@ static int max77686_init_rtc_regmap(struct max77686_rtc_info *info)
&info->rtc_irq_data);
if (ret < 0) {
dev_err(info->dev, "Failed to add RTC irq chip: %d\n", ret);
- goto err_unregister_i2c;
+ return ret;
}
return 0;
-
-err_unregister_i2c:
- if (info->rtc)
- i2c_unregister_device(info->rtc);
- return ret;
}
static int max77686_rtc_probe(struct platform_device *pdev)
@@ -783,8 +778,6 @@ static int max77686_rtc_probe(struct platform_device *pdev)
err_rtc:
regmap_del_irq_chip(info->rtc_irq, info->rtc_irq_data);
- if (info->rtc)
- i2c_unregister_device(info->rtc);
return ret;
}
@@ -795,8 +788,6 @@ static int max77686_rtc_remove(struct platform_device *pdev)
free_irq(info->virq, info);
regmap_del_irq_chip(info->rtc_irq, info->rtc_irq_data);
- if (info->rtc)
- i2c_unregister_device(info->rtc);
return 0;
}
--
2.20.1
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH v2 2/2] rtc: s35390a: convert to devm_i2c_new_dummy_device()
[not found] <20190830133124.21633-1-wsa+renesas@sang-engineering.com>
2019-08-30 13:31 ` [PATCH v2 1/2] rtc: max77686: convert to devm_i2c_new_dummy_device() Wolfram Sang
@ 2019-08-30 13:31 ` Wolfram Sang
2019-09-01 9:03 ` Alexandre Belloni
1 sibling, 1 reply; 4+ messages in thread
From: Wolfram Sang @ 2019-08-30 13:31 UTC (permalink / raw)
To: linux-i2c
Cc: linux-rtc, Wolfram Sang, Alessandro Zummo, Alexandre Belloni,
linux-kernel
I was about to simplify the call to i2c_unregister_device() when I
realized that converting to devm_i2c_new_dummy_device() will simplify
the driver a lot. So I took this approach.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
drivers/rtc/rtc-s35390a.c | 54 ++++++++++-----------------------------
1 file changed, 13 insertions(+), 41 deletions(-)
diff --git a/drivers/rtc/rtc-s35390a.c b/drivers/rtc/rtc-s35390a.c
index d773fd597bd5..da34cfd70f95 100644
--- a/drivers/rtc/rtc-s35390a.c
+++ b/drivers/rtc/rtc-s35390a.c
@@ -434,37 +434,32 @@ static int s35390a_probe(struct i2c_client *client,
char buf, status1;
struct device *dev = &client->dev;
- if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
- err = -ENODEV;
- goto exit;
- }
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
+ return -ENODEV;
s35390a = devm_kzalloc(dev, sizeof(struct s35390a), GFP_KERNEL);
- if (!s35390a) {
- err = -ENOMEM;
- goto exit;
- }
+ if (!s35390a)
+ return -ENOMEM;
s35390a->client[0] = client;
i2c_set_clientdata(client, s35390a);
/* This chip uses multiple addresses, use dummy devices for them */
for (i = 1; i < 8; ++i) {
- s35390a->client[i] = i2c_new_dummy_device(client->adapter,
- client->addr + i);
+ s35390a->client[i] = devm_i2c_new_dummy_device(dev,
+ client->adapter,
+ client->addr + i);
if (IS_ERR(s35390a->client[i])) {
dev_err(dev, "Address %02x unavailable\n",
client->addr + i);
- err = PTR_ERR(s35390a->client[i]);
- goto exit_dummy;
+ return PTR_ERR(s35390a->client[i]);
}
}
err_read = s35390a_read_status(s35390a, &status1);
if (err_read < 0) {
- err = err_read;
dev_err(dev, "error resetting chip\n");
- goto exit_dummy;
+ return err_read;
}
if (status1 & S35390A_FLAG_24H)
@@ -478,13 +473,13 @@ static int s35390a_probe(struct i2c_client *client,
err = s35390a_set_reg(s35390a, S35390A_CMD_STATUS2, &buf, 1);
if (err < 0) {
dev_err(dev, "error disabling alarm");
- goto exit_dummy;
+ return err;
}
} else {
err = s35390a_disable_test_mode(s35390a);
if (err < 0) {
dev_err(dev, "error disabling test mode\n");
- goto exit_dummy;
+ return err;
}
}
@@ -493,10 +488,8 @@ static int s35390a_probe(struct i2c_client *client,
s35390a->rtc = devm_rtc_device_register(dev, s35390a_driver.driver.name,
&s35390a_rtc_ops, THIS_MODULE);
- if (IS_ERR(s35390a->rtc)) {
- err = PTR_ERR(s35390a->rtc);
- goto exit_dummy;
- }
+ if (IS_ERR(s35390a->rtc))
+ return PTR_ERR(s35390a->rtc);
/* supports per-minute alarms only, therefore set uie_unsupported */
s35390a->rtc->uie_unsupported = 1;
@@ -505,26 +498,6 @@ static int s35390a_probe(struct i2c_client *client,
rtc_update_irq(s35390a->rtc, 1, RTC_AF);
return 0;
-
-exit_dummy:
- for (i = 1; i < 8; ++i)
- if (s35390a->client[i])
- i2c_unregister_device(s35390a->client[i]);
-
-exit:
- return err;
-}
-
-static int s35390a_remove(struct i2c_client *client)
-{
- unsigned int i;
- struct s35390a *s35390a = i2c_get_clientdata(client);
-
- for (i = 1; i < 8; ++i)
- if (s35390a->client[i])
- i2c_unregister_device(s35390a->client[i]);
-
- return 0;
}
static struct i2c_driver s35390a_driver = {
@@ -533,7 +506,6 @@ static struct i2c_driver s35390a_driver = {
.of_match_table = of_match_ptr(s35390a_of_match),
},
.probe = s35390a_probe,
- .remove = s35390a_remove,
.id_table = s35390a_id,
};
--
2.20.1
^ permalink raw reply related [flat|nested] 4+ messages in thread