From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: linux-i2c@vger.kernel.org
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>,
Alessandro Zummo <a.zummo@towertech.it>,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
linux-rtc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 2/2] rtc: s35390a: convert to devm_i2c_new_dummy_device()
Date: Tue, 20 Aug 2019 17:42:38 +0200 [thread overview]
Message-ID: <20190820154239.8230-3-wsa+renesas@sang-engineering.com> (raw)
In-Reply-To: <20190820154239.8230-1-wsa+renesas@sang-engineering.com>
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>
---
Build tested only, buildbot is happy, too.
Please apply to your tree.
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 5826209a3f30..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
next prev parent reply other threads:[~2019-08-20 15:42 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-20 15:42 [PATCH 0/2] rtc: convert two drivers to devm_i2c_new_dummy_device() Wolfram Sang
2019-08-20 15:42 ` [PATCH 1/2] rtc: max77686: convert " Wolfram Sang
2019-08-29 20:57 ` Alexandre Belloni
2019-08-30 12:45 ` Wolfram Sang
2019-08-30 12:53 ` Alexandre Belloni
2019-08-30 13:00 ` Wolfram Sang
2019-08-30 13:06 ` Alexandre Belloni
2019-08-30 13:18 ` Wolfram Sang
2019-08-20 15:42 ` Wolfram Sang [this message]
2019-08-29 20:58 ` [PATCH 2/2] rtc: s35390a: " Alexandre Belloni
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