octeontx2-af: Increase link credit restore polling timeout
It's been observed that sometimes link credit restore takes a lot of time than the current timeout. This patch increases the default timeout value and return the proper error value on failure. Fixes: 1c74b891 ("octeontx2-af: Wait for TX link idle for credits change") Signed-off-by: Geetha sowjanya <gakula@marvell.com> Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com> Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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