diff options
| author | Mark Brown <broonie@kernel.org> | 2025-07-14 11:34:16 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2025-07-14 11:34:16 +0100 |
| commit | bfd291279f87a2cf2bebbf93d654a352b6bcd083 (patch) | |
| tree | 3cb0366e1c0f111ea0d02bbaf69cabe799f0a89f /rust/kernel/drm/device.rs | |
| parent | e977f3811effb0f4b50824fcadd6b40d2b4d867f (diff) | |
| parent | 790d5f8ee6f2a27686d042abbce16b4e03ac1608 (diff) | |
ASoC: codec: Convert to GPIO descriptors for
Merge series from Peng Fan <peng.fan@nxp.com>:
This patchset is a pick up of patch 1,2 from [1]. And I also collect
Linus's R-b for patch 2. After this patchset, there is only one user of
of_gpio.h left in sound driver(pxa2xx-ac97).
of_gpio.h is deprecated, update the driver to use GPIO descriptors.
Patch 1 is to drop legacy platform data which in-tree no users are using it
Patch 2 is to convert to GPIO descriptors
Checking the DTS that use the device, all are using GPIOD_ACTIVE_LOW
polarity for reset-gpios, so all should work as expected with this patch.
[1] https://lore.kernel.org/all/20250408-asoc-gpio-v1-0-c0db9d3fd6e9@nxp.com/
Diffstat (limited to 'rust/kernel/drm/device.rs')
| -rw-r--r-- | rust/kernel/drm/device.rs | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/rust/kernel/drm/device.rs b/rust/kernel/drm/device.rs index 624d7a4c83ea..14c1aa402951 100644 --- a/rust/kernel/drm/device.rs +++ b/rust/kernel/drm/device.rs @@ -66,7 +66,7 @@ impl<T: drm::Driver> Device<T> { open: Some(drm::File::<T::File>::open_callback), postclose: Some(drm::File::<T::File>::postclose_callback), unload: None, - release: None, + release: Some(Self::release), master_set: None, master_drop: None, debugfs_init: None, @@ -162,6 +162,16 @@ impl<T: drm::Driver> Device<T> { // SAFETY: `ptr` is valid by the safety requirements of this function. unsafe { &*ptr.cast() } } + + extern "C" fn release(ptr: *mut bindings::drm_device) { + // SAFETY: `ptr` is a valid pointer to a `struct drm_device` and embedded in `Self`. + let this = unsafe { Self::from_drm_device(ptr) }; + + // SAFETY: + // - When `release` runs it is guaranteed that there is no further access to `this`. + // - `this` is valid for dropping. + unsafe { core::ptr::drop_in_place(this) }; + } } impl<T: drm::Driver> Deref for Device<T> { |