drm/etnaviv: Restore some id values

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[ Upstream commit b735ee173f ]

The hwdb selection logic as a feature that allows it to mark some fields
as 'don't care'. If we match with such a field we memcpy(..)
the current etnaviv_chip_identity into ident.

This step can overwrite some id values read from the GPU with the
'don't care' value.

Fix this issue by restoring the affected values after the memcpy(..).

As this is crucial for user space to know when this feature works as
expected increment the minor version too.

Fixes: 4078a1186d ("drm/etnaviv: update hwdb selection logic")
Cc: stable@vger.kernel.org
Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com>
Reviewed-by: Tomeu Vizoso <tomeu@tomeuvizoso.net>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Christian Gmeiner 2024-03-01 14:28:11 +01:00 • committed by Greg Kroah-Hartman

parent ad8a4eb663

commit 03f58a6479

2 changed files with 10 additions and 1 deletions

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2

drivers/gpu/drm/etnaviv/etnaviv_drv.c

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9

drivers/gpu/drm/etnaviv/etnaviv_hwdb.c

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