netdev - Re: [RFC PATCH 2/6] phy: armada38x: add common phy support

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Date:   Mon, 12 Nov 2018 18:03:31 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Russell King <rmk+kernel@...linux.org.uk>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        netdev@...r.kernel.org,
        Gregory Clement <gregory.clement@...tlin.com>,
        Jason Cooper <jason@...edaemon.net>,
        Kishon Vijay Abraham I <kishon@...com>,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
        Maxime Chevallier <maxime.chevallier@...tlin.com>
Subject: Re: [RFC PATCH 2/6] phy: armada38x: add common phy support

> +static int a38x_comphy_poll(struct a38x_comphy_lane *lane,
> +			    unsigned int offset, u32 mask, u32 value)
> +{
> +	unsigned int timeout = 10;
> +	u32 val;
> +
> +	while (1) {
> +		val = readl_relaxed(lane->base + offset);
> +		if ((val & mask) == value)
> +			return 0;
> +		if (!timeout--)
> +			break;
> +		udelay(10);
> +	}

Hi Russell

Maybe use one of the readx_poll_timeout() variants?

      Andrew