Hi,
this is a patch set for updating ALSA PCM API usages in dw-hdmi driver. I already tried to "fix" the driver some time ago but it was utterly wrong. So this is a combination of the revised patch and another cleanup patch.
The first one is to change the buffer allocation mechanism in the driver to the manual allocation of the h/w buffer and the automatic allocation of PCM stream buffers via the new standard API. The significant change is that size of the h/w buffer isn't no longer controlled via ALSA preallocation proc file but rather via the new module option (if any).
The second one is a oneliner patch just to remove the superfluous PCM ops.
Both need the ALSA PCM core changes in 5.5-rc1, so please apply them on top of 5.5-rc1 or later. Or, just let me know if I should apply them through sound git tree.
thanks,
Takashi
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Takashi Iwai (2): drm/bridge: dw-hdmi: Follow the standard ALSA memalloc way drm/bridge: dw-hdmi: Drop superfluous ioctl PCM ops
.../gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c | 49 ++++++++++++---------- 1 file changed, 26 insertions(+), 23 deletions(-)