soundwire: cadence_master: set frame shape and divider based on actual clk freq #5179
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not following why you have 2 PRs that look mostly identical @bardliao? Which one do you want us to review? |
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SOFCI TEST |
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Rebase to the latest topic/sof-dev branch and the CI test result looks good to me. |
ranj063
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Nov 1, 2024
drivers/soundwire/cadence_master.c
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I think we should return an error in this case, so change the return type from void to int for this function?
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I think we should return an error in this case, so change the return type from void to int for this function?
Agree, done
ranj063
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ujfalusi
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Nov 12, 2024
…l clk freq Frame shape and curr_dr_freq could be updated by sdw_compute_bus_params(). Peripherals will set curr_dr_freq as their frequency. Managers should do the same. Then update frame shape according to the actual bus frequency. Signed-off-by: Bard Liao <[email protected]>
Now, we can support more than 1 soundwire bus clock frequency. This reverts commit c326356. Signed-off-by: Bard Liao <[email protected]>
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"soundwire: cadence_master: set frame shape and divider based on actual clk freq" is the only new commit. CI reports below error without this commit.
The issue happens randomly when cdns_init_clock_ctrl() and cdns_bus_conf() set different divider. In theory, divider could be changed. But, the existing code set max_clk_freq in cdns_init_clock_ctrl() and set curr_dr_freq in sdw_initialize_slave() which doesn't make sense to me. The PR suggests setting curr_dr_freq if it is present.
To reproduce the issue:
Run 2 times for each below command one by one on LNL_SDW_AIOC devices.
TPLG=/lib/firmware/intel/sof-ipc4-tplg/sof-lnl-rt711-l0-rt1316-l23-rt714-l1.tplg MODEL=LNLM_SDW_AIOC SOF_TEST_INTERVAL=5 ~/sof-test/test-case/check-playback.sh -d 3 -l 3 -r 1
TPLG=/lib/firmware/intel/sof-ipc4-tplg/sof-lnl-rt711-l0-rt1316-l23-rt714-l1.tplg MODEL=LNLM_SDW_AIOC SOF_TEST_INTERVAL=5 ~/sof-test/test-case/check-capture.sh -d 3 -l 3 -r 1
TPLG=/lib/firmware/intel/sof-ipc4-tplg/sof-lnl-rt711-l0-rt1316-l23-rt714-l1.tplg MODEL=LNLM_SDW_AIOC SOF_TEST_INTERVAL=5 ~/sof-test/test-case/check-playback.sh -d 3 -l 1 -r 3
TPLG=/lib/firmware/intel/sof-ipc4-tplg/sof-lnl-rt711-l0-rt1316-l23-rt714-l1.tplg MODEL=LNLM_SDW_AIOC SOF_TEST_INTERVAL=5 ~/sof-test/test-case/check-capture.sh -d 3 -l 1 -r 3