This series proposes SW workarounds for Tegra194 HDA HW bugs. Following are the two issues seen: 1. GCAP register does not reflect true capability. The actual number of SDO lines is "4", where as it reflects "2". 2. With 4 SDO line configuration playback fails for, 44.1K/48K, 2-channel, 16-bps audio stream.
After fixing [1], issue [2] is uncovered. As per recommendation by Tegra HW team the workarounds are pushed.
Testing done ============ * Verify GCAP register after registering HDA sound card * Verify audio playback for 44.1K/48K, 2-channel, 16-bps.
Sameer Pujar (3): ALSA: hda/tegra: correct number of SDO lines for Tegra194 ALSA: hda: add member to store ratio for stripe control ALSA: hda/tegra: workaround playback failure on Tegra194
include/sound/hdaudio.h | 3 +++ sound/hda/hdac_controller.c | 11 ++++++++++ sound/hda/hdac_stream.c | 2 +- sound/pci/hda/hda_tegra.c | 50 +++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 65 insertions(+), 1 deletion(-)