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Driver core patches for 5.4-rc1

Browse source 
Here is the big driver core update for 5.4-rc1.
 
 There was a bit of a churn in here, with a number of core and OF
 platform patches being added to the tree, and then after much discussion
 and review and a day-long in-person meeting, they were decided to be
 reverted and a new set of patches is currently being reviewed on the
 mailing list.
 
 Other than that churn, there are two "persistent" branches in here that
 other trees will be pulling in as well during the merge window.  One
 branch to add support for drivers to have the driver core automatically
 add sysfs attribute files when a driver is bound to a device so that the
 driver doesn't have to manually do it (and then clean it up, as it
 always gets it wrong).
 
 There's another branch in here for generic lookup helpers for the driver
 core that lots of busses are starting to use.  That's the majority of
 the non-driver-core changes in this patch series.
 
 There's also some on-going debugfs file creation cleanup that has been
 slowly happening over the past few releases, with the goal to hopefully
 get that done sometime next year.
 
 All of these have been in linux-next for a while now with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Merge tag 'driver-core-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg Kroah-Hartman:
 "Here is the big driver core update for 5.4-rc1.

  There was a bit of a churn in here, with a number of core and OF
  platform patches being added to the tree, and then after much
  discussion and review and a day-long in-person meeting, they were
  decided to be reverted and a new set of patches is currently being
  reviewed on the mailing list.

  Other than that churn, there are two "persistent" branches in here
  that other trees will be pulling in as well during the merge window.
  One branch to add support for drivers to have the driver core
  automatically add sysfs attribute files when a driver is bound to a
  device so that the driver doesn't have to manually do it (and then
  clean it up, as it always gets it wrong).

  There's another branch in here for generic lookup helpers for the
  driver core that lots of busses are starting to use. That's the
  majority of the non-driver-core changes in this patch series.

  There's also some on-going debugfs file creation cleanup that has been
  slowly happening over the past few releases, with the goal to
  hopefully get that done sometime next year.

  All of these have been in linux-next for a while now with no reported
  issues"

[ Note that the above-mentioned generic lookup helpers branch was
  already brought in by the LED merge (commit 4feaab05dc) that had
  shared it.

  Also note that that common branch introduced an i2c bug due to a bad
  conversion, which got fixed here. - Linus ]

* tag 'driver-core-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (49 commits)
  coccinelle: platform_get_irq: Fix parse error
  driver-core: add include guard to linux/container.h
  sysfs: add BIN_ATTR_WO() macro
  driver core: platform: Export platform_get_irq_optional()
  hwmon: pwm-fan: Use platform_get_irq_optional()
  driver core: platform: Introduce platform_get_irq_optional()
  Revert "driver core: Add support for linking devices during device addition"
  Revert "driver core: Add edit_links() callback for drivers"
  Revert "of/platform: Add functional dependency link from DT bindings"
  Revert "driver core: Add sync_state driver/bus callback"
  Revert "of/platform: Pause/resume sync state during init and of_platform_populate()"
  Revert "of/platform: Create device links for all child-supplier depencencies"
  Revert "of/platform: Don't create device links for default busses"
  Revert "of/platform: Fix fn definitons for of_link_is_valid() and of_link_property()"
  Revert "of/platform: Fix device_links_supplier_sync_state_resume() warning"
  Revert "of/platform: Disable generic device linking code for PowerPC"
  devcoredump: fix typo in comment
  devcoredump: use memory_read_from_buffer
  of/platform: Disable generic device linking code for PowerPC
  device.h: Fix warnings for mismatched parameter names in comments
  ...
This commit is contained in:
Linus Torvalds 2019-09-18 10:04:39 -07:00
commit 1f7d290a72
26 changed files with 496 additions and 515 deletions
Download patch file Download diff file Expand all files Collapse all files

13
drivers/mfd/aat2870-core.c
View file

@ -321,18 +321,9 @@ static const struct file_operations aat2870_reg_fops = {
static void aat2870_init_debugfs(struct aat2870_data *aat2870)
{
aat2870->dentry_root = debugfs_create_dir("aat2870", NULL);
if (!aat2870->dentry_root) {
dev_warn(aat2870->dev,
"Failed to create debugfs root directory\n");
return;
}
aat2870->dentry_reg = debugfs_create_file("regs", 0644,
aat2870->dentry_root,
aat2870, &aat2870_reg_fops);
if (!aat2870->dentry_reg)
dev_warn(aat2870->dev,
"Failed to create debugfs register file\n");
debugfs_create_file("regs", 0644, aat2870->dentry_root, aat2870,
&aat2870_reg_fops);
}
#else

45
drivers/mfd/ab3100-core.c
View file

@ -575,58 +575,27 @@ static const struct file_operations ab3100_get_set_reg_fops = {
.llseek = noop_llseek,
};
static struct dentry *ab3100_dir;
static struct dentry *ab3100_reg_file;
static struct ab3100_get_set_reg_priv ab3100_get_priv;
static struct dentry *ab3100_get_reg_file;
static struct ab3100_get_set_reg_priv ab3100_set_priv;
static struct dentry *ab3100_set_reg_file;
static void ab3100_setup_debugfs(struct ab3100 *ab3100)
{
int err;
struct dentry *ab3100_dir;
ab3100_dir = debugfs_create_dir("ab3100", NULL);
if (!ab3100_dir)
goto exit_no_debugfs;
ab3100_reg_file = debugfs_create_file("registers",
S_IRUGO, ab3100_dir, ab3100,
&ab3100_registers_fops);
if (!ab3100_reg_file) {
err = -ENOMEM;
goto exit_destroy_dir;
}
debugfs_create_file("registers", S_IRUGO, ab3100_dir, ab3100,
&ab3100_registers_fops);
ab3100_get_priv.ab3100 = ab3100;
ab3100_get_priv.mode = false;
ab3100_get_reg_file = debugfs_create_file("get_reg",
S_IWUSR, ab3100_dir, &ab3100_get_priv,
&ab3100_get_set_reg_fops);
if (!ab3100_get_reg_file) {
err = -ENOMEM;
goto exit_destroy_reg;
}
debugfs_create_file("get_reg", S_IWUSR, ab3100_dir, &ab3100_get_priv,
&ab3100_get_set_reg_fops);
ab3100_set_priv.ab3100 = ab3100;
ab3100_set_priv.mode = true;
ab3100_set_reg_file = debugfs_create_file("set_reg",
S_IWUSR, ab3100_dir, &ab3100_set_priv,
&ab3100_get_set_reg_fops);
if (!ab3100_set_reg_file) {
err = -ENOMEM;
goto exit_destroy_get_reg;
}
return;
exit_destroy_get_reg:
debugfs_remove(ab3100_get_reg_file);
exit_destroy_reg:
debugfs_remove(ab3100_reg_file);
exit_destroy_dir:
debugfs_remove(ab3100_dir);
exit_no_debugfs:
return;
debugfs_create_file("set_reg", S_IWUSR, ab3100_dir, &ab3100_set_priv,
&ab3100_get_set_reg_fops);
}
#else
static inline void ab3100_setup_debugfs(struct ab3100 *ab3100)

21
drivers/mfd/ab3100-otp.c
View file

@ -122,17 +122,11 @@ static const struct file_operations ab3100_otp_operations = {
.release = single_release,
};
static int __init ab3100_otp_init_debugfs(struct device *dev,
struct ab3100_otp *otp)
static void __init ab3100_otp_init_debugfs(struct device *dev,
struct ab3100_otp *otp)
{
otp->debugfs = debugfs_create_file("ab3100_otp", S_IFREG | S_IRUGO,
NULL, otp,
&ab3100_otp_operations);
if (!otp->debugfs) {
dev_err(dev, "AB3100 debugfs OTP file registration failed!\n");
return -ENOENT;
}
return 0;
NULL, otp, &ab3100_otp_operations);
}
static void __exit ab3100_otp_exit_debugfs(struct ab3100_otp *otp)
@ -141,10 +135,9 @@ static void __exit ab3100_otp_exit_debugfs(struct ab3100_otp *otp)
}
#else
/* Compile this out if debugfs not selected */
static inline int __init ab3100_otp_init_debugfs(struct device *dev,
struct ab3100_otp *otp)
static inline void __init ab3100_otp_init_debugfs(struct device *dev,
struct ab3100_otp *otp)
{
return 0;
}
static inline void __exit ab3100_otp_exit_debugfs(struct ab3100_otp *otp)
@ -211,9 +204,7 @@ static int __init ab3100_otp_probe(struct platform_device *pdev)
}
/* debugfs entries */
err = ab3100_otp_init_debugfs(&pdev->dev, otp);
if (err)
goto err;
ab3100_otp_init_debugfs(&pdev->dev, otp);
return 0;

322
drivers/mfd/ab8500-debugfs.c
View file

@ -2644,12 +2644,10 @@ static const struct file_operations ab8500_hwreg_fops = {
.owner = THIS_MODULE,
};
static struct dentry *ab8500_dir;
static struct dentry *ab8500_gpadc_dir;
static int ab8500_debug_probe(struct platform_device *plf)
{
struct dentry *file;
struct dentry *ab8500_dir;
struct dentry *ab8500_gpadc_dir;
struct ab8500 *ab8500;
struct resource *res;
@ -2694,47 +2692,22 @@ static int ab8500_debug_probe(struct platform_device *plf)
}
ab8500_dir = debugfs_create_dir(AB8500_NAME_STRING, NULL);
if (!ab8500_dir)
goto err;
ab8500_gpadc_dir = debugfs_create_dir(AB8500_ADC_NAME_STRING,
ab8500_dir);
if (!ab8500_gpadc_dir)
goto err;
file = debugfs_create_file("all-bank-registers", S_IRUGO, ab8500_dir,
&plf->dev, &ab8500_bank_registers_fops);
if (!file)
goto err;
file = debugfs_create_file("all-banks", S_IRUGO, ab8500_dir,
&plf->dev, &ab8500_all_banks_fops);
if (!file)
goto err;
file = debugfs_create_file("register-bank",
(S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_dir, &plf->dev, &ab8500_bank_fops);
if (!file)
goto err;
file = debugfs_create_file("register-address",
(S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_dir, &plf->dev, &ab8500_address_fops);
if (!file)
goto err;
file = debugfs_create_file("register-value",
(S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_dir, &plf->dev, &ab8500_val_fops);
if (!file)
goto err;
file = debugfs_create_file("irq-subscribe",
(S_IRUGO | S_IWUSR | S_IWGRP), ab8500_dir,
&plf->dev, &ab8500_subscribe_fops);
if (!file)
goto err;
debugfs_create_file("all-bank-registers", S_IRUGO, ab8500_dir,
&plf->dev, &ab8500_bank_registers_fops);
debugfs_create_file("all-banks", S_IRUGO, ab8500_dir,
&plf->dev, &ab8500_all_banks_fops);
debugfs_create_file("register-bank", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_dir, &plf->dev, &ab8500_bank_fops);
debugfs_create_file("register-address", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_dir, &plf->dev, &ab8500_address_fops);
debugfs_create_file("register-value", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_dir, &plf->dev, &ab8500_val_fops);
debugfs_create_file("irq-subscribe", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_dir, &plf->dev, &ab8500_subscribe_fops);
if (is_ab8500(ab8500)) {
debug_ranges = ab8500_debug_ranges;
@ -2750,194 +2723,93 @@ static int ab8500_debug_probe(struct platform_device *plf)
num_interrupt_lines = AB8540_NR_IRQS;
}
file = debugfs_create_file("interrupts", (S_IRUGO), ab8500_dir,
&plf->dev, &ab8500_interrupts_fops);
if (!file)
goto err;
file = debugfs_create_file("irq-unsubscribe",
(S_IRUGO | S_IWUSR | S_IWGRP), ab8500_dir,
&plf->dev, &ab8500_unsubscribe_fops);
if (!file)
goto err;
file = debugfs_create_file("hwreg", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_dir, &plf->dev, &ab8500_hwreg_fops);
if (!file)
goto err;
file = debugfs_create_file("all-modem-registers",
(S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_dir, &plf->dev, &ab8500_modem_fops);
if (!file)
goto err;
file = debugfs_create_file("bat_ctrl", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_bat_ctrl_fops);
if (!file)
goto err;
file = debugfs_create_file("btemp_ball", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir,
&plf->dev, &ab8500_gpadc_btemp_ball_fops);
if (!file)
goto err;
file = debugfs_create_file("main_charger_v",
(S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_main_charger_v_fops);
if (!file)
goto err;
file = debugfs_create_file("acc_detect1",
(S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_acc_detect1_fops);
if (!file)
goto err;
file = debugfs_create_file("acc_detect2",
(S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_acc_detect2_fops);
if (!file)
goto err;
file = debugfs_create_file("adc_aux1", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_aux1_fops);
if (!file)
goto err;
file = debugfs_create_file("adc_aux2", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_aux2_fops);
if (!file)
goto err;
file = debugfs_create_file("main_bat_v", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_main_bat_v_fops);
if (!file)
goto err;
file = debugfs_create_file("vbus_v", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_vbus_v_fops);
if (!file)
goto err;
file = debugfs_create_file("main_charger_c",
(S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_main_charger_c_fops);
if (!file)
goto err;
file = debugfs_create_file("usb_charger_c",
(S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir,
&plf->dev, &ab8500_gpadc_usb_charger_c_fops);
if (!file)
goto err;
file = debugfs_create_file("bk_bat_v", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_bk_bat_v_fops);
if (!file)
goto err;
file = debugfs_create_file("die_temp", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_die_temp_fops);
if (!file)
goto err;
file = debugfs_create_file("usb_id", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_usb_id_fops);
if (!file)
goto err;
debugfs_create_file("interrupts", (S_IRUGO), ab8500_dir, &plf->dev,
&ab8500_interrupts_fops);
debugfs_create_file("irq-unsubscribe", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_dir, &plf->dev, &ab8500_unsubscribe_fops);
debugfs_create_file("hwreg", (S_IRUGO | S_IWUSR | S_IWGRP), ab8500_dir,
&plf->dev, &ab8500_hwreg_fops);
debugfs_create_file("all-modem-registers", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_dir, &plf->dev, &ab8500_modem_fops);
debugfs_create_file("bat_ctrl", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_bat_ctrl_fops);
debugfs_create_file("btemp_ball", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_btemp_ball_fops);
debugfs_create_file("main_charger_v", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_main_charger_v_fops);
debugfs_create_file("acc_detect1", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_acc_detect1_fops);
debugfs_create_file("acc_detect2", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_acc_detect2_fops);
debugfs_create_file("adc_aux1", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_aux1_fops);
debugfs_create_file("adc_aux2", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_aux2_fops);
debugfs_create_file("main_bat_v", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_main_bat_v_fops);
debugfs_create_file("vbus_v", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_vbus_v_fops);
debugfs_create_file("main_charger_c", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_main_charger_c_fops);
debugfs_create_file("usb_charger_c", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_usb_charger_c_fops);
debugfs_create_file("bk_bat_v", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_bk_bat_v_fops);
debugfs_create_file("die_temp", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_die_temp_fops);
debugfs_create_file("usb_id", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_usb_id_fops);
if (is_ab8540(ab8500)) {
file = debugfs_create_file("xtal_temp",
(S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8540_gpadc_xtal_temp_fops);
if (!file)
goto err;
file = debugfs_create_file("vbattruemeas",
(S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8540_gpadc_vbat_true_meas_fops);
if (!file)
goto err;
file = debugfs_create_file("batctrl_and_ibat",
(S_IRUGO | S_IWUGO),
ab8500_gpadc_dir,
&plf->dev,
&ab8540_gpadc_bat_ctrl_and_ibat_fops);
if (!file)
goto err;
file = debugfs_create_file("vbatmeas_and_ibat",
(S_IRUGO | S_IWUGO),
ab8500_gpadc_dir, &plf->dev,
&ab8540_gpadc_vbat_meas_and_ibat_fops);
if (!file)
goto err;
file = debugfs_create_file("vbattruemeas_and_ibat",
(S_IRUGO | S_IWUGO),
ab8500_gpadc_dir,
&plf->dev,
&ab8540_gpadc_vbat_true_meas_and_ibat_fops);
if (!file)
goto err;
file = debugfs_create_file("battemp_and_ibat",
(S_IRUGO | S_IWUGO),
ab8500_gpadc_dir,
&plf->dev, &ab8540_gpadc_bat_temp_and_ibat_fops);
if (!file)
goto err;
file = debugfs_create_file("otp_calib",
(S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir,
&plf->dev, &ab8540_gpadc_otp_calib_fops);
if (!file)
goto err;
debugfs_create_file("xtal_temp", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8540_gpadc_xtal_temp_fops);
debugfs_create_file("vbattruemeas", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8540_gpadc_vbat_true_meas_fops);
debugfs_create_file("batctrl_and_ibat", (S_IRUGO | S_IWUGO),
ab8500_gpadc_dir, &plf->dev,
&ab8540_gpadc_bat_ctrl_and_ibat_fops);
debugfs_create_file("vbatmeas_and_ibat", (S_IRUGO | S_IWUGO),
ab8500_gpadc_dir, &plf->dev,
&ab8540_gpadc_vbat_meas_and_ibat_fops);
debugfs_create_file("vbattruemeas_and_ibat", (S_IRUGO | S_IWUGO),
ab8500_gpadc_dir, &plf->dev,
&ab8540_gpadc_vbat_true_meas_and_ibat_fops);
debugfs_create_file("battemp_and_ibat", (S_IRUGO | S_IWUGO),
ab8500_gpadc_dir, &plf->dev,
&ab8540_gpadc_bat_temp_and_ibat_fops);
debugfs_create_file("otp_calib", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8540_gpadc_otp_calib_fops);
}
file = debugfs_create_file("avg_sample", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_avg_sample_fops);
if (!file)
goto err;
file = debugfs_create_file("trig_edge", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_trig_edge_fops);
if (!file)
goto err;
file = debugfs_create_file("trig_timer", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_trig_timer_fops);
if (!file)
goto err;
file = debugfs_create_file("conv_type", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_conv_type_fops);
if (!file)
goto err;
debugfs_create_file("avg_sample", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_avg_sample_fops);
debugfs_create_file("trig_edge", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_trig_edge_fops);
debugfs_create_file("trig_timer", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_trig_timer_fops);
debugfs_create_file("conv_type", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_conv_type_fops);
return 0;
err:
debugfs_remove_recursive(ab8500_dir);
dev_err(&plf->dev, "failed to create debugfs entries.\n");
return -ENOMEM;
}
static struct platform_driver ab8500_debug_driver = {