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Thanks, Peng On Wed, Jun 10, 2026 at 10:39:09PM +0800, Peng Fan (OSS) wrote: >There is an errata for i.MX8MP VC8000E: > ERR050531: VPU_NOC power down handshake may hang during VC8000E/VPUMIX > power up/down cycling. > Description: VC8000E reset de-assertion edge and AXI clock may have a > timing issue. > Workaround: Set bit2 (vc8000e_clk_en) of BLK_CLK_EN_CSR to 0 to gate off > both AXI clock and VC8000E clock sent to VC8000E and AXI clock sent to > VPU_NOC m_v_2 interface during VC8000E power up(VC8000E reset is > de-asserted by HW) > >This patchset is to fix the errata. More info could be found in each >patch commit. > >Sorry for sending v4 at 7.1-rc7, no rush for 7.1. > >Signed-off-by: Peng Fan >--- >Changes in v4: >- Add R-b >- Set is_errata_err050531 to true for vc8000e >- Link to v3: https://lore.kernel.org/r/20260409-imx8mp-vc8000e-pm-v3-0-3e023eaa245b@nxp.com > >Changes in v3: >- Separate power up notifier fix into patch 1 >- Link to v2: https://lore.kernel.org/r/20260228-imx8mp-vc8000e-pm-v2-1-fd255a0d5958@nxp.com > >Changes in v2: >- Add errata link in commit message >- Add comment for is_errata_err050531 >- Link to v1: https://lore.kernel.org/r/20260128-imx8mp-vc8000e-pm-v1-1-6c171451c732@nxp.com > >--- >Peng Fan (2): > pmdomain: imx: Fix i.MX8MP power notifier > pmdomain: imx: Fix i.MX8MP VC8000E power up sequence > > drivers/pmdomain/imx/imx8m-blk-ctrl.c | 46 +++++++++++++++++++++++++++++++++-- > 1 file changed, 44 insertions(+), 2 deletions(-) >--- >base-commit: 49e02880ec0a8c378e811bc9d85da188d7c6204c >change-id: 20260610-b4-imx8mp-vc8000e-pm-v4-1-a978b40c59d0 > >Best regards, >-- >Peng Fan >