linux-kernel - [PATCH v2 05/14] phy: cadence: Sierra: Make cdns_sierra_phy_init() as phy

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Date:   Wed, 23 Oct 2019 18:27:26 +0530
From:   Kishon Vijay Abraham I <kishon@...com>
To:     Rob Herring <robh+dt@...nel.org>,
        Kishon Vijay Abraham I <kishon@...com>,
        Roger Quadros <rogerq@...com>, Jyri Sarha <jsarha@...com>
CC:     Anil Varughese <aniljoy@...ence.com>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>
Subject: [PATCH v2 05/14] phy: cadence: Sierra: Make cdns_sierra_phy_init() as phy_ops

Instead of invoking cdns_sierra_phy_init() from probe, add it in
phy_ops so that it's initialized when the PHY consumer invokes
phy_init()

Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
---
 drivers/phy/cadence/phy-cadence-sierra.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/phy/cadence/phy-cadence-sierra.c b/drivers/phy/cadence/phy-cadence-sierra.c
index 89a3b732c311..5c617248841f 100644
--- a/drivers/phy/cadence/phy-cadence-sierra.c
+++ b/drivers/phy/cadence/phy-cadence-sierra.c
@@ -174,7 +174,7 @@ static struct regmap_config cdns_sierra_phy_config_ctrl_config = {
 	.reg_read = cdns_regmap_read,
 };
 
-static void cdns_sierra_phy_init(struct phy *gphy)
+static int cdns_sierra_phy_init(struct phy *gphy)
 {
 	struct cdns_sierra_inst *ins = phy_get_drvdata(gphy);
 	struct cdns_sierra_phy *phy = dev_get_drvdata(gphy->dev.parent);
@@ -183,6 +183,10 @@ static void cdns_sierra_phy_init(struct phy *gphy)
 	struct cdns_reg_pairs *vals;
 	u32 num_regs;
 
+	/* Initialise the PHY registers, unless auto configured */
+	if (phy->autoconf)
+		return 0;
+
 	if (ins->phy_type == PHY_TYPE_PCIE) {
 		num_regs = phy->init_data->pcie_regs;
 		vals = phy->init_data->pcie_vals;
@@ -190,7 +194,7 @@ static void cdns_sierra_phy_init(struct phy *gphy)
 		num_regs = phy->init_data->usb_regs;
 		vals = phy->init_data->usb_vals;
 	} else {
-		return;
+		return -EINVAL;
 	}
 	for (i = 0; i < ins->num_lanes; i++) {
 		for (j = 0; j < num_regs ; j++) {
@@ -198,6 +202,8 @@ static void cdns_sierra_phy_init(struct phy *gphy)
 			regmap_write(regmap, vals[j].off, vals[j].val);
 		}
 	}
+
+	return 0;
 }
 
 static int cdns_sierra_phy_on(struct phy *gphy)
@@ -216,6 +222,7 @@ static int cdns_sierra_phy_off(struct phy *gphy)
 }
 
 static const struct phy_ops ops = {
+	.init		= cdns_sierra_phy_init,
 	.power_on	= cdns_sierra_phy_on,
 	.power_off	= cdns_sierra_phy_off,
 	.owner		= THIS_MODULE,
@@ -436,10 +443,6 @@ static int cdns_sierra_phy_probe(struct platform_device *pdev)
 		sp->phys[node].phy = gphy;
 		phy_set_drvdata(gphy, &sp->phys[node]);
 
-		/* Initialise the PHY registers, unless auto configured */
-		if (!sp->autoconf)
-			cdns_sierra_phy_init(gphy);
-
 		node++;
 	}
 	sp->nsubnodes = node;
-- 
2.17.1