diff mbox series

[v4,1/3] phy: cadence: Sierra: add phy_reset hook

Message ID 20191028102153.24866-2-rogerq@ti.com
State Accepted
Commit 7904e15b4d31a5515a882c3a87dfc898c4749fed
Headers show
Series [v4,1/3] phy: cadence: Sierra: add phy_reset hook | expand

Commit Message

Roger Quadros Oct. 28, 2019, 10:21 a.m. UTC 
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>

---
 drivers/phy/cadence/phy-cadence-sierra.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

-- 
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diff mbox series

Patch

diff --git a/drivers/phy/cadence/phy-cadence-sierra.c b/drivers/phy/cadence/phy-cadence-sierra.c
index 04c28cbb6d39..7fed61211716 100644
--- a/drivers/phy/cadence/phy-cadence-sierra.c
+++ b/drivers/phy/cadence/phy-cadence-sierra.c
@@ -339,10 +339,20 @@  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,
 };