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From: Kishon Vijay Abraham I <kishon@ti.com>
To: Kishon Vijay Abraham I <kishon@ti.com>,
	Vinod Koul <vkoul@kernel.org>, Rob Herring <robh+dt@kernel.org>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Swapnil Jakhade <sjakhade@cadence.com>
Cc: <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
	Lokesh Vutla <lokeshvutla@ti.com>, <stable@vger.kernel.org>
Subject: [PATCH v5 02/13] phy: ti: j721e-wiz: Invoke wiz_init() before of_platform_device_create()
Date: Mon, 8 Mar 2021 10:37:21 +0530	[thread overview]
Message-ID: <20210308050732.7140-3-kishon@ti.com> (raw)
In-Reply-To: <20210308050732.7140-1-kishon@ti.com>

Invoke wiz_init() before configuring anything else in Sierra/Torrent
(invoked as part of of_platform_device_create()). wiz_init() resets the
SERDES device and any configuration done in the probe() of
Sierra/Torrent will be lost. In order to prevent SERDES configuration
from getting reset, invoke wiz_init() immediately before invoking
of_platform_device_create().

Fixes: 091876cc355d ("phy: ti: j721e-wiz: Add support for WIZ module present in TI J721E SoC")
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Cc: <stable@vger.kernel.org> # v5.10
---
 drivers/phy/ti/phy-j721e-wiz.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/drivers/phy/ti/phy-j721e-wiz.c b/drivers/phy/ti/phy-j721e-wiz.c
index 995c7dbec77b..1bb73822f44a 100644
--- a/drivers/phy/ti/phy-j721e-wiz.c
+++ b/drivers/phy/ti/phy-j721e-wiz.c
@@ -1262,27 +1262,24 @@ static int wiz_probe(struct platform_device *pdev)
 		goto err_get_sync;
 	}
 
+	ret = wiz_init(wiz);
+	if (ret) {
+		dev_err(dev, "WIZ initialization failed\n");
+		goto err_wiz_init;
+	}
+
 	serdes_pdev = of_platform_device_create(child_node, NULL, dev);
 	if (!serdes_pdev) {
 		dev_WARN(dev, "Unable to create SERDES platform device\n");
 		ret = -ENOMEM;
-		goto err_pdev_create;
-	}
-	wiz->serdes_pdev = serdes_pdev;
-
-	ret = wiz_init(wiz);
-	if (ret) {
-		dev_err(dev, "WIZ initialization failed\n");
 		goto err_wiz_init;
 	}
+	wiz->serdes_pdev = serdes_pdev;
 
 	of_node_put(child_node);
 	return 0;
 
 err_wiz_init:
-	of_platform_device_destroy(&serdes_pdev->dev, NULL);
-
-err_pdev_create:
 	wiz_clock_cleanup(wiz, node);
 
 err_get_sync:
-- 
2.17.1


  parent reply	other threads:[~2021-03-08  5:08 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-08  5:07 [PATCH v5 00/13] PHY: Add support in Sierra to use external clock Kishon Vijay Abraham I
2021-03-08  5:07 ` [PATCH v5 01/13] phy: cadence: Sierra: Fix PHY power_on sequence Kishon Vijay Abraham I
2021-03-08  5:07 ` Kishon Vijay Abraham I [this message]
2021-03-08  5:07 ` [PATCH v5 03/13] phy: cadence: cadence-sierra: Create PHY only for "phy" or "link" sub-nodes Kishon Vijay Abraham I
2021-03-08  5:07 ` [PATCH v5 04/13] phy: ti: j721e-wiz: Get PHY properties only for "phy" or "link" subnode Kishon Vijay Abraham I
2021-03-08  5:07 ` [PATCH v5 05/13] phy: cadence: cadence-sierra: Move all clk_get_*() to a separate function Kishon Vijay Abraham I
2021-03-08  5:07 ` [PATCH v5 06/13] phy: cadence: cadence-sierra: Move all reset_control_get*() " Kishon Vijay Abraham I
2021-03-08  5:07 ` [PATCH v5 07/13] phy: cadence: cadence-sierra: Explicitly request exclusive reset control Kishon Vijay Abraham I
2021-03-08  5:07 ` [PATCH v5 08/13] phy: cadence-torrent: Use a common header file for Cadence SERDES Kishon Vijay Abraham I
2021-03-08  5:07 ` [PATCH v5 09/13] phy: cadence: cadence-sierra: Add array of input clocks in "struct cdns_sierra_phy" Kishon Vijay Abraham I
2021-03-08  5:07 ` [PATCH v5 10/13] phy: cadence: cadence-sierra: Add missing clk_disable_unprepare() in .remove callback Kishon Vijay Abraham I
2021-03-08  5:07 ` [PATCH v5 11/13] dt-bindings: phy: phy-cadence-sierra: Add binding to model Sierra as clock provider Kishon Vijay Abraham I
2021-03-08 23:09   ` Rob Herring
2021-03-08  5:07 ` [PATCH v5 12/13] phy: cadence: phy-cadence-sierra: Model PLL_CMNLC and PLL_CMNLC1 as clocks (mux clocks) Kishon Vijay Abraham I
2021-03-08  5:07 ` [PATCH v5 13/13] phy: cadence: sierra: Enable pll_cmnlc and pll_cmnlc1 clocks Kishon Vijay Abraham I

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