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Message-Id: <20240412-j7200-phy-s2r-v1-3-f15815833974@bootlin.com>
Date: Tue, 16 Apr 2024 14:52:32 +0200
From: Thomas Richard <thomas.richard@...tlin.com>
To: Vinod Koul <vkoul@...nel.org>,
Kishon Vijay Abraham I <kishon@...nel.org>,
Philipp Zabel <p.zabel@...gutronix.de>
Cc: linux-phy@...ts.infradead.org, linux-kernel@...r.kernel.org,
gregory.clement@...tlin.com, theo.lebrun@...tlin.com,
thomas.petazzoni@...tlin.com, u-kumar1@...com,
Thomas Richard <thomas.richard@...tlin.com>
Subject: [PATCH 3/8] phy: ti: phy-j721e-wiz: add resume support
Add resume support.
It has been tested on J7200 SR1.0 and SR2.0.
Co-developed-by: Théo Lebrun <theo.lebrun@...tlin.com>
Signed-off-by: Théo Lebrun <theo.lebrun@...tlin.com>
Signed-off-by: Thomas Richard <thomas.richard@...tlin.com>
---
drivers/phy/ti/phy-j721e-wiz.c | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/drivers/phy/ti/phy-j721e-wiz.c b/drivers/phy/ti/phy-j721e-wiz.c
index ba670109e7ad..7f626c597025 100644
--- a/drivers/phy/ti/phy-j721e-wiz.c
+++ b/drivers/phy/ti/phy-j721e-wiz.c
@@ -1659,12 +1659,41 @@ static void wiz_remove(struct platform_device *pdev)
pm_runtime_disable(dev);
}
+static int wiz_resume_noirq(struct device *dev)
+{
+ struct device_node *node = dev->of_node;
+ struct wiz *wiz = dev_get_drvdata(dev);
+ int ret;
+
+ /* Enable supplemental Control override if available */
+ if (wiz->sup_legacy_clk_override)
+ regmap_field_write(wiz->sup_legacy_clk_override, 1);
+
+ wiz_clock_init(wiz);
+
+ ret = wiz_init(wiz);
+ if (ret) {
+ dev_err(dev, "WIZ initialization failed\n");
+ goto err_wiz_init;
+ }
+
+ return 0;
+
+err_wiz_init:
+ wiz_clock_cleanup(wiz, node);
+
+ return ret;
+}
+
+static DEFINE_NOIRQ_DEV_PM_OPS(wiz_pm_ops, NULL, wiz_resume_noirq);
+
static struct platform_driver wiz_driver = {
.probe = wiz_probe,
.remove_new = wiz_remove,
.driver = {
.name = "wiz",
.of_match_table = wiz_id_table,
+ .pm = pm_sleep_ptr(&wiz_pm_ops),
},
};
module_platform_driver(wiz_driver);
--
2.39.2
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