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phy: cadence: Sierra: add phy_reset hook

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Some platforms e.g. J721e need lane swap register
to be programmed before reset is deasserted.
This patch ensures that we propagate the phy_reset
back to the reset controller driver.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Reviewed-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Roger Quadros 2020-01-06 15:06:20 +02:00 committed by Kishon Vijay Abraham I
parent 80f96fb186
commit 7904e15b4d
1 changed files with 10 additions and 0 deletions
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10
drivers/phy/cadence/phy-cadence-sierra.c
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@ -341,10 +341,20 @@ static int cdns_sierra_phy_off(struct phy *gphy)
return reset_control_assert(ins->lnk_rst);
}
static int cdns_sierra_phy_reset(struct phy *gphy)
{
struct cdns_sierra_phy *sp = dev_get_drvdata(gphy->dev.parent);
reset_control_assert(sp->phy_rst);
reset_control_deassert(sp->phy_rst);
return 0;
};
static const struct phy_ops ops = {
.init = cdns_sierra_phy_init,
.power_on = cdns_sierra_phy_on,
.power_off = cdns_sierra_phy_off,
.reset = cdns_sierra_phy_reset,
.owner = THIS_MODULE,
};