]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
ASoC: qcom: q6apm-dai: set flags to reflect correct operation of appl_ptr
authorSrinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Thu, 23 Oct 2025 10:24:25 +0000 (11:24 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 8 Jan 2026 09:14:38 +0000 (10:14 +0100)
commit488643e5605d17af7548fcbd24a3e97a7b7e2f11
treed50db4f64a631f7279b1a1dee22eb76fce551d90
parent60ffd2bc19976cee99f69ca97a9aebb58ab1ae70
ASoC: qcom: q6apm-dai: set flags to reflect correct operation of appl_ptr

commit 950a4e5788fc7dc6e8e93614a7d4d0449c39fb8d upstream.

Driver does not expect the appl_ptr to move backward and requires
explict sync. Make sure that the userspace does not do appl_ptr rewinds
by specifying the correct flags in pcm_info.

Without this patch, the result could be a forever loop as current logic assumes
that appl_ptr can only move forward.

Fixes: 3d4a4411aa8b ("ASoC: q6apm-dai: schedule all available frames to avoid dsp under-runs")
Cc: Stable@vger.kernel.org
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Tested-by: Alexey Klimov <alexey.klimov@linaro.org> # RB5, RB3
Link: https://patch.msgid.link/20251023102444.88158-2-srinivas.kandagatla@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
sound/soc/qcom/qdsp6/q6apm-dai.c