From: Kishon Vijay Abraham I <kishon@ti.com>
Date: Fri, 28 Jan 2022 08:11:29 +0000 (+0530)
Subject: phy: cadence: Sierra: Fix PHY power_on sequence
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=67703eed11fecc425857078e35779b9db6c62066;p=u-boot.git

phy: cadence: Sierra: Fix PHY power_on sequence

Commit 39b823381d9d ("phy: cadence: Add driver for Sierra PHY")
de-asserts PHY_RESET even before the configurations are loaded in
phy_init(). However PHY_RESET should be de-asserted only after
all the configurations has been initialized, instead of de-asserting
in probe. Fix it here.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
---

diff --git a/drivers/phy/cadence/phy-cadence-sierra.c b/drivers/phy/cadence/phy-cadence-sierra.c
index 6b26b30dcf..bd42145fca 100644
--- a/drivers/phy/cadence/phy-cadence-sierra.c
+++ b/drivers/phy/cadence/phy-cadence-sierra.c
@@ -296,6 +296,12 @@ static int cdns_sierra_phy_on(struct phy *gphy)
 	u32 val;
 	int ret;
 
+	ret = reset_control_deassert(sp->phy_rst);
+	if (ret) {
+		dev_err(dev, "Failed to take the PHY out of reset\n");
+		return ret;
+	}
+
 	/* Take the PHY lane group out of reset */
 	ret = reset_deassert_bulk(ins->lnk_rst);
 	if (ret) {
@@ -544,7 +550,6 @@ static int cdns_sierra_phy_probe(struct udevice *dev)
 	if (!sp->autoconf && sp->nsubnodes > 1)
 		regmap_field_write(sp->phy_pll_cfg_1, 0x1);
 
-	reset_control_deassert(sp->phy_rst);
 	dev_info(dev, "sierra probed\n");
 	return 0;