The LS1028A SoC errata sheet mentions A-050121 "GPU hangs if clock gating for Rasterizer, Setup Engine and Texture Engine are enabled". The workaround is to disable the corresponding clock gatings. Signed-off-by: Michael Walle <michael@xxxxxxxx> --- drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c index 4102bcea3341..574e4e04dddc 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -613,6 +613,12 @@ static void etnaviv_gpu_enable_mlcg(struct etnaviv_gpu *gpu) etnaviv_is_model_rev(gpu, GC2000, 0x5108)) pmc |= VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_TX; + /* Disable RS, SE, TE clock gating on affected core revisions. */ + if (etnaviv_is_model_rev(gpu, GC7000, 0x6202)) + pmc |= VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_SE | + VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_RA | + VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_TX; + pmc |= VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_RA_HZ; pmc |= VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_RA_EZ; -- 2.20.1
