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| author |   Roger Quadros <rogerq@ti.com> | 2020-01-06 15:06:20 +0200 |
|---|---|---|
| committer |   Kishon Vijay Abraham I <kishon@ti.com> | 2020-01-14 10:50:19 +0530 |
| commit | 7904e15b4d31a5515a882c3a87dfc898c4749fed (patch) | |
| tree | 39e01a9d22b27f1fa549fea92b88dbf0c43ca304 /drivers/phy | |
| parent | phy: cadence: Sierra: remove redundant initialization of pointer regmap (diff) | |
| download | linux-dev-7904e15b4d31a5515a882c3a87dfc898c4749fed.tar.xz linux-dev-7904e15b4d31a5515a882c3a87dfc898c4749fed.zip | |
phy: cadence: Sierra: add phy_reset hook
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>
Diffstat (limited to 'drivers/phy')
| -rw-r--r-- | drivers/phy/cadence/phy-cadence-sierra.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/phy/cadence/phy-cadence-sierra.c b/drivers/phy/cadence/phy-cadence-sierra.c index ecfb1f9de2e3..a5c08e5bd2bf 100644 --- a/drivers/phy/cadence/phy-cadence-sierra.c +++ b/drivers/phy/cadence/phy-cadence-sierra.c @@ -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, }; |