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path: root/drivers/mfd/ab3100-otp.c
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Diffstat (limited to 'drivers/mfd/ab3100-otp.c')
-rw-r--r--drivers/mfd/ab3100-otp.c43
1 files changed, 12 insertions, 31 deletions
diff --git a/drivers/mfd/ab3100-otp.c b/drivers/mfd/ab3100-otp.c
index 2d14655fdeb..c9af16cc731 100644
--- a/drivers/mfd/ab3100-otp.c
+++ b/drivers/mfd/ab3100-otp.c
@@ -12,7 +12,7 @@
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/platform_device.h>
-#include <linux/mfd/ab3100.h>
+#include <linux/mfd/abx500.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
@@ -30,7 +30,6 @@
/**
* struct ab3100_otp
* @dev containing device
- * @ab3100 a pointer to the parent ab3100 device struct
* @locked whether the OTP is locked, after locking, no more bits
* can be changed but before locking it is still possible
* to change bits from 1->0.
@@ -49,7 +48,6 @@
*/
struct ab3100_otp {
struct device *dev;
- struct ab3100 *ab3100;
bool locked;
u32 freq;
bool paf;
@@ -63,19 +61,19 @@ struct ab3100_otp {
static int __init ab3100_otp_read(struct ab3100_otp *otp)
{
- struct ab3100 *ab = otp->ab3100;
u8 otpval[8];
u8 otpp;
int err;
- err = ab3100_get_register_interruptible(ab, AB3100_OTPP, &otpp);
+ err = abx500_get_register_interruptible(otp->dev, 0,
+ AB3100_OTPP, &otpp);
if (err) {
dev_err(otp->dev, "unable to read OTPP register\n");
return err;
}
- err = ab3100_get_register_page_interruptible(ab, AB3100_OTP0,
- otpval, 8);
+ err = abx500_get_register_page_interruptible(otp->dev, 0,
+ AB3100_OTP0, otpval, 8);
if (err) {
dev_err(otp->dev, "unable to read OTP register page\n");
return err;
@@ -189,7 +187,7 @@ static int __init ab3100_otp_probe(struct platform_device *pdev)
int err = 0;
int i;
- otp = kzalloc(sizeof(struct ab3100_otp), GFP_KERNEL);
+ otp = devm_kzalloc(&pdev->dev, sizeof(struct ab3100_otp), GFP_KERNEL);
if (!otp) {
dev_err(&pdev->dev, "could not allocate AB3100 OTP device\n");
return -ENOMEM;
@@ -197,7 +195,6 @@ static int __init ab3100_otp_probe(struct platform_device *pdev)
otp->dev = &pdev->dev;
/* Replace platform data coming in with a local struct */
- otp->ab3100 = platform_get_drvdata(pdev);
platform_set_drvdata(pdev, otp);
err = ab3100_otp_read(otp);
@@ -211,22 +208,19 @@ static int __init ab3100_otp_probe(struct platform_device *pdev)
err = device_create_file(&pdev->dev,
&ab3100_otp_attrs[i]);
if (err)
- goto out_no_sysfs;
+ goto err;
}
/* debugfs entries */
err = ab3100_otp_init_debugfs(&pdev->dev, otp);
if (err)
- goto out_no_debugfs;
+ goto err;
return 0;
-out_no_sysfs:
- for (i = 0; i < ARRAY_SIZE(ab3100_otp_attrs); i++)
- device_remove_file(&pdev->dev,
- &ab3100_otp_attrs[i]);
-out_no_debugfs:
- kfree(otp);
+err:
+ while (--i >= 0)
+ device_remove_file(&pdev->dev, &ab3100_otp_attrs[i]);
return err;
}
@@ -239,7 +233,6 @@ static int __exit ab3100_otp_remove(struct platform_device *pdev)
device_remove_file(&pdev->dev,
&ab3100_otp_attrs[i]);
ab3100_otp_exit_debugfs(otp);
- kfree(otp);
return 0;
}
@@ -251,19 +244,7 @@ static struct platform_driver ab3100_otp_driver = {
.remove = __exit_p(ab3100_otp_remove),
};
-static int __init ab3100_otp_init(void)
-{
- return platform_driver_probe(&ab3100_otp_driver,
- ab3100_otp_probe);
-}
-
-static void __exit ab3100_otp_exit(void)
-{
- platform_driver_unregister(&ab3100_otp_driver);
-}
-
-module_init(ab3100_otp_init);
-module_exit(ab3100_otp_exit);
+module_platform_driver_probe(ab3100_otp_driver, ab3100_otp_probe);
MODULE_AUTHOR("Linus Walleij <linus.walleij@stericsson.com>");
MODULE_DESCRIPTION("AB3100 OTP Readout Driver");