linux-kernel - Re: [PATCH v3 13/18] phy: cadence-torrent: remove noop

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Date: Thu, 15 Feb 2024 17:45:28 +0200
From: Andy Shevchenko <andy@...nel.org>
To: Thomas Richard <thomas.richard@...tlin.com>
Cc: Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>,
	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>,
	Vinod Koul <vkoul@...nel.org>,
	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 v3 13/18] phy: cadence-torrent: remove noop_ops phy
 operations

On Thu, Feb 15, 2024 at 04:17:58PM +0100, Thomas Richard wrote:
> Even if a PHY is already configured, the PHY operations are needed during
> resume stage, as the PHY is in reset state.
> The noop_ops PHY operations is removed to always have PHY operations.
> The already_configured flag is checked at the begening of init, configure
> and poweron operations to keep the already_configured behaviour.

..

> +	if (cdns_phy->already_configured) {
> +		/* Give 5ms to 10ms delay for the PIPE clock to be stable */
> +		usleep_range(5000, 10000);

fsleep() ?
(Yes, I see this is the original code, perhaps later in a separate change)

> +		return 0;
> +	}

-- 
With Best Regards,
Andy Shevchenko