Commit b98c6688 authored Jan 21, 2016 by Russell King Committed by Lucas Stach Jan 26, 2016

drm/etnaviv: ignore VG GPUs with FE2.0



Ignore GPUs with a 2.0 front end.  These have a different register
layout for the front end, which provokes imprecise aborts from the
register accesses in the 'gpu' debugfs file.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

parent f6427760

drivers/gpu/drm/etnaviv/etnaviv_gpu.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -515,6 +515,14 @@ int etnaviv_gpu_init(struct etnaviv_gpu *gpu)
		goto fail;
		}

		/* Exclude VG cores with FE2.0 */
		if (gpu->identity.features & chipFeatures_PIPE_VG &&
		gpu->identity.features & chipFeatures_FE20) {
		dev_info(gpu->dev, "Ignoring GPU with VG and FE2.0\n");
		ret = -ENXIO;
		goto fail;
		}

		ret = etnaviv_hw_reset(gpu);
		if (ret)
		goto fail;