stable inclusion
from stable-5.10.52
commit b3f8120039d5c33230e4a2cf5cbb30a91aa64bc3
bugzilla: 175542 https://gitee.com/openeuler/kernel/issues/I4DTKU

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=b3f8120039d5c33230e4a2cf5cbb30a91aa64bc3

--------------------------------

commit 68b433fe upstream.

It should have been an OVERLAY from the beginning. The documentation
stipulates that there should be an unique PRIMARY plane per CRTC.

Fixes: fc1acf31 ("drm/ingenic: Add support for the IPU")
Cc: <stable@vger.kernel.org> # 5.8+
Signed-off-by: NPaul Cercueil <paul@crapouillou.net>
Acked-by: NSimon Ser <contact@emersion.fr>
Link: https://patchwork.freedesktop.org/patch/msgid/20210329175046.214629-2-paul@crapouillou.netSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Acked-by: NWeilong Chen <chenweilong@huawei.com>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>