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If is_errata_err050531 is true, first clear the clk before > powering up gpc, then enable the clk after powering up gpc. > > While at here, using imx8mm_vpu_power_notifier() is wrong, as it ungates > the VPU clocks to provide the ADB clock, which is necessary on i.MX8MM, > but on i.MX8MP there is a separate gate (bit 3) for the NoC. So add > imx8mp_vpu_power_notifier() for i.MX8MP. > > [1] https://www.nxp.com/webapp/Download?colCode=IMX8MP_1P33A > Peng, Is using imx8mm_vpu_power_notifier wrong no matter on the errata? If so, I think you should fix that problem first, e.g create a separate patch that fixes the notifier and then add support for the errata. In the future, if the chips with the errata are deprecated we could only revert that given patch. thanks, Daniel.