net: fec: fix MAC internal delay doesn't work
This patch intends to fix MAC internal delay doesn't work, due to use of_property_read_u32() incorrectly, and improve this feature a bit: 1) check the delay value if valid, only program register when it's 2000ps. 2) only enable "enet_2x_txclk" clock when require MAC internal delay. Fixes: fc539459 ("net: fec: add MAC internal delayed clock feature support") Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com> Link: https://lore.kernel.org/r/20210803052424.19008-1-qiangqing.zhang@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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