drm/vmwgfx: Fix display register usage for some older configs

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We can't be setting the display_id register to an invalid value
because that makes our device reset the fb which causes nasty
flicker (due to destruction and creation of a new fb).
Also we can't be using the BITS_PER_PIXEL register if the
8BIT_EMULATION is not supported.

Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Martin Krastev <krastevm@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Link: https://patchwork.freedesktop.org/patch/414041/?series=85516&rev=2

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This commit is contained in:

Zack Rusin 2020-11-19 19:37:07 -05:00

parent 8426ed9c4b

commit 625f8fb5bb

2 changed files with 2 additions and 2 deletions

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3

drivers/gpu/drm/vmwgfx/vmwgfx_kms.c

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1

drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c

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