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In preparation to restoring the ability of MSM8974 driver to work with the modern kernels, switch the driver to the main icc-rpm set of helper code. As platform-specific workarounds, set the get_bw callback (returning 0) to prevent initial setup from programming INT_MAX into the RPM (which otherwise might hang the platform) and tell RPM programming code to ignore -ENXIO errors from the firmware (until the QoS programming is sorted out). Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://msgid.link/20260324-msm8974-icc-v2-7-527280043ad8@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>