Re: [PATCH v2 0/3] ALSA: add suspend/resume support for InterWave ISA cards

Takashi Iwai
2026-04-08T08:51:37Z

On Tue, 07 Apr 2026 17:35:40 +0200,
Cássio Gabriel wrote:
>
> This 3-patch series wires up suspend and resume support for the
> InterWave ISA drivers and their PnP front-end around the shared
> GUS PM helpers.
>
> The first patch moves the remaining standalone
> snd_tea6330t_detect() EXPORT_SYMBOL() declaration next to its
> function definition as a requested small cleanup.
>
> The second patch adds a small TEA6330T helper so the InterWave STB
> variant can restore its cached external mixer state after resume.
>
> The third patch adds ISA and PnP PM callbacks to snd-interwave and
> restores the remaining InterWave-specific state that the generic GUS
> resume path does not cover, including the GF1 board registers and the
> detected memory layout.
>
> The resume path intentionally does not rerun probe-time DRAM/ROM
> detection. As with the shared GUS PM support, this does not guarantee
> preservation of sample RAM contents across suspend.
>
> Signed-off-by: Cássio Gabriel <cassiogabrielcontato@gmail.com>
> ---
> Changes in v2:
> - Add a separate tea6330t cleanup patch moving the standalone
> snd_tea6330t_detect() EXPORT_SYMBOL() next to its function.
> - Extend snd_i2c_lock() to cover the full device lookup/list traversal
> in snd_tea6330t_restore_mixer().
> - Renumber the InterWave PM patch to 3/3 after splitting out the
> cleanup patch.
> - Link to v1: https://lore.kernel.org/all/20260406-alsa-interwave-pm-v1-0-6ffa6f317c8f@gmail.com/
>
> ---
> Cássio Gabriel (3):
> ALSA: tea6330t: move snd_tea6330t_detect() EXPORT_SYMBOL
> ALSA: tea6330t: add mixer state restore helper
> ALSA: interwave: add ISA and PnP suspend and resume callbacks

Applied all patches to for-next branch now. Thanks.

Takashi