PTR_ERR should access the value just tested by IS_ERR, otherwise
the wrong error code will be returned.
Fixes: b0d9a4bd52bd ("clk: sunxi-ng: add support for DE2 CCU")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
The "Display Engine 2.0" in Allwinner newer SoCs contains a clock
management unit for its subunits, like the DE CCU in A80.
Add a sunxi-ng style driver for it.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>