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authorjiada wang <jiada_wang@mentor.com>2017-09-20 15:25:30 +0900
committerMark Brown <broonie@kernel.org>2017-09-20 12:40:41 +0100
commit957ce0c6b8a1f26559864507ae0bfcba29d924ad (patch)
treec82c88b8263a6dc31745b44dce277e0095b62ecb /include/sound
parent2bd6bf03f4c1c59381d62c61d03f6cc3fe71f66e (diff)
downloadlinux-957ce0c6b8a1f26559864507ae0bfcba29d924ad.tar.gz
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ASoC: soc-pcm: check symmetry after hw_params
hw_params may be fixup by be_hw_params_fixup, calling soc_pcm_params_symmetry() before hw_params will have issue if there is hw_params changes in be_hw_params_fixup. For example, with following use case 1. a dai-link which is able to convert sample rate on BE side 2. set BE playback and capture sample rate to 44100Hz 3. play a 48000Hz audio stream with this dai-link 4. record from this dai-link with 44100Hz sample rate Got following error message when record starts [ 495.013527] be_link_ak4613: ASoC: unmatched rate symmetry: 48000 - 44100 [ 495.021729] be_link_ak4613: ASoC: hw_params BE failed -22 [ 495.028589] rsnd_link0: ASoC: hw_params BE failed -22 Because in soc_pcm_hw_params(), FE rate is still having value before it is fixup by be_hw_params_fixup(), when soc_pcm_params_symmetry() checks symmetry, thus soc_pcm_params_symmetry() complains about the unmatched rate between the active stream and the new stream tries to start. This patch moves soc_pcm_params_symmetry() after hw_params to resolve the above issue. Signed-off-by: Jiada Wang <jiada_wang@mentor.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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