drm/armada: Fix off-by-one error in armada_overlay_get_property()

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[ Upstream commit 5f0d984053 ]

As ffs() returns one more than the index of the first bit set (zero
means no bits set), the color key mode value is shifted one position too
much.

Fix this by using FIELD_GET() instead.

Fixes: c96103b6c4 ("drm/armada: move colorkey properties into overlay plane state")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a4d779d954a7515ddbbf31cb0f0d8184c0e7c879.1689600265.git.geert+renesas@glider.be
Signed-off-by: Sasha Levin <sashal@kernel.org>

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This commit is contained in:

Geert Uytterhoeven 2023-07-17 15:25:40 +02:00 • committed by Greg Kroah-Hartman

parent d7b3918b5c

commit 9711540715

1 changed files with 4 additions and 2 deletions

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drivers/gpu/drm/armada/armada_overlay.c

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