Disable SH_EU clock gating for the VIPNano-Si+ NPU on i.MX8MP. Taken from linux-imx lf-6.1.36-2.1.0, specifically [1]. [1] https://github.com/nxp-imx/linux-imx/blob/lf-6.1.36-2.1.0/drivers/mxc/gpu-viv/hal/kernel/arch/gc_hal_kernel_hardware.c#L2747-L2761 Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx> --- drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c index 9b8445d2a128..e28332a2560d 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -641,6 +641,10 @@ static void etnaviv_gpu_enable_mlcg(struct etnaviv_gpu *gpu) pmc |= VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_SE | VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_RA; + /* Disable SH_EU clock gating on affected core revisions. */ + if (etnaviv_is_model_rev(gpu, GC8000, 0x8002)) + pmc |= VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_SH_EU; + pmc |= VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_RA_HZ; pmc |= VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_RA_EZ; -- 2.39.2
