pci_request_regions() is a hybrid function which becomes managed if
pcim_enable_device() was called before. This hybrid nature is deprecated
and should not be used anymore.

Replace pci_request_regions() with the always-managed function
pcim_request_all_regions().

Signed-off-by: Philipp Stanner <phasta@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250423075346.45907-21-phasta@kernel.org

We introduced a couple of helpers for copying iomem over iov_iter, and
the functions were formed like the former copy_from/to_user(), and the
return value was adjusted to 0/-EFAULT, which made the code transition
a bit easier at that time.

OTOH, the standard copy_from/to_iter() functions have different
argument orders and the return value, and this difference can be
confusing.  It's not only confusing but dangerous; actually I did
write a wrong code due to that once :-<

For reducing the confusion, this patch changes the syntax of those
helpers to align with the standard copy_from/to_iter().  The argument
order is changed and the return value is the size of copied bytes.
The callers of those functions are updated accordingly, too.

Link: https://patch.msgid.link/20241230114903.4959-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

*-objs suffix is reserved rather for (user-space) host programs while
usually *-y suffix is used for kernel drivers (although *-objs works
for that purpose for now).

Let's correct the old usages of *-objs in Makefiles.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20240507135513.14919-3-tiwai@suse.de

Use the	new DEFINE_SIMPLE_DEV_PM_OPS() instead of SIMPLE_DEV_PM_OPS()
for code-simplification.  We need no longer CONFIG_PM_SLEEP ifdefs.
Just a cleanup, no functional changes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20240207155140.18238-10-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

This patch converts the nm256 driver code to use the new unified PCM
copy callback.  It's a straightforward conversion from *_user() to
*_iter() variants.

Link: https://lore.kernel.org/r/20230815190136.8987-10-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

The card destructor of nm256 driver does merely stopping the running
streams, and it's superfluous for the probe error handling.  Moreover,
calling this via the previous devres change would lead to another
problem due to the reverse call order.

This patch moves the setup of the private_free callback after the card
registration, so that it can be used only after fully set up.

Fixes: c19935f04784 ("ALSA: nm256: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-40-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

If pci_request_regions() fails, it should return error
code in snd_nm256_create().

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20210720135237.3424521-1-yangyingliang@huawei.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

This patch converts the resource management in PCI nm256 driver with
devres as a clean up.  Each manual resource management is converted
with the corresponding devres helper, and the card object release is
managed now via card->private_free instead of a lowlevel snd_device.

This should give no user-visible functional changes.

Link: https://lore.kernel.org/r/20210715075941.23332-43-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

PCI NM256 driver code contains a few assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.

This patch is merely for coding-style fixes, no functional changes.

Link: https://lore.kernel.org/r/20210608140540.17885-46-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

MODULE_SUPPORTED_DEVICE was added in pre-git era and never was
implemented. We can safely remove it, because the kernel has grown
to have many more reliable mechanisms to determine if device is
supported or not.

Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>