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net: lan966x: make reset optional 

There is no dedicated reset for just the switch core. The reset which
is used up until now, is more of a global reset, resetting almost the
whole SoC and cause spurious errors by doing so. Make it possible to
handle the reset elsewhere and make the reset optional.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Walle 2022-08-31 13:18:55 +02:00 committed by David S. Miller
parent baa6a9b590
commit f4c1f51cea
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/microchip/lan966x/lan966x_main.c
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@ -971,7 +971,8 @@ static int lan966x_reset_switch(struct lan966x *lan966x)
int val = 0;
int ret;
switch_reset = devm_reset_control_get_shared(lan966x->dev, "switch");
switch_reset = devm_reset_control_get_optional_shared(lan966x->dev,
"switch");
if (IS_ERR(switch_reset))
return dev_err_probe(lan966x->dev, PTR_ERR(switch_reset),
"Could not obtain switch reset");