linux-kernel - Re: [PATCH v4 08/18] phy: ti: phy-j721e-wiz: add resume support

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Date: Fri, 5 Apr 2024 22:14:09 +0530
From: Vinod Koul <vkoul@...nel.org>
To: Thomas Richard <thomas.richard@...tlin.com>
Cc: Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>,
	Andy Shevchenko <andy@...nel.org>, Tony Lindgren <tony@...mide.com>,
	Haojian Zhuang <haojian.zhuang@...aro.org>,
	Vignesh R <vigneshr@...com>, Aaro Koskinen <aaro.koskinen@....fi>,
	Janusz Krzysztofik <jmkrzyszt@...il.com>,
	Andi Shyti <andi.shyti@...nel.org>, Peter Rosin <peda@...ntia.se>,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczyński <kw@...ux.com>,
	Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
	linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-omap@...r.kernel.org,
	linux-i2c@...r.kernel.org, linux-phy@...ts.infradead.org,
	linux-pci@...r.kernel.org, gregory.clement@...tlin.com,
	theo.lebrun@...tlin.com, thomas.petazzoni@...tlin.com,
	u-kumar1@...com
Subject: Re: [PATCH v4 08/18] phy: ti: phy-j721e-wiz: add resume support

On 04-03-24, 16:35, Thomas Richard wrote:
> 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 0e3cb1ed5a52..b2320f2efb72 100644
> --- a/drivers/phy/ti/phy-j721e-wiz.c
> +++ b/drivers/phy/ti/phy-j721e-wiz.c
> @@ -1660,12 +1660,41 @@ static void wiz_remove(struct platform_device *pdev)
>  	pm_runtime_disable(dev);
>  }
>  
> +static int wiz_resume_noirq(struct device *dev)

I think this should be annotated with __maybe_unused

> +{
> +	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

-- 
~Vinod