drm/etnaviv: add clock gating workaround for GC7000 r6202
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@walle.cc> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
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@ -613,6 +613,12 @@ static void etnaviv_gpu_enable_mlcg(struct etnaviv_gpu *gpu)
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etnaviv_is_model_rev(gpu, GC2000, 0x5108))
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pmc |= VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_TX;
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/* Disable SE, RA and TX clock gating on affected core revisions. */
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if (etnaviv_is_model_rev(gpu, GC7000, 0x6202))
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pmc |= VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_SE |
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VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_RA |
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VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_TX;
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pmc |= VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_RA_HZ;
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pmc |= VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_RA_EZ;
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