Commit ca082333 authored by Bryan O'Donoghue's avatar Bryan O'Donoghue Committed by Stephen Boyd
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clk: qcom: gcc-x1e80100: Don't use parking clk_ops for QUPs

Per Stephen Boyd's explanation in the link below, QUP RCG clocks do not
need to be parked when switching frequency. A side-effect in parking to a
lower frequency can be a momentary invalid clock driven on an in-use serial
peripheral.

This can cause "junk" to spewed out of a UART as a low-impact example. On
the x1e80100-crd this serial port junk can be observed on linux-next.

Apply a similar fix to the x1e80100 Global Clock controller to remediate.

Link: https://lore.kernel.org/all/20240819233628.2074654-3-swboyd@chromium.org/


Fixes: 161b7c40 ("clk: qcom: Add Global Clock controller (GCC) driver for X1E80100")
Fixes: 929c75d5 ("clk: qcom: gcc-sm8550: Mark RCGs shared where applicable")
Suggested-by: default avatarNeil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: default avatarBryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20240823-x1e80100-clk-fix-v1-1-0b1b4f5a96e8@linaro.org


Reviewed-by: default avatarKonrad Dybcio <konradybcio@kernel.org>
Signed-off-by: default avatarStephen Boyd <sboyd@kernel.org>
parent 0f6eaf12
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