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From: Andrew Lunn <andrew@lunn.ch>
To: Dan Murphy <dmurphy@ti.com>
Cc: f.fainelli@gmail.com, hkallweit1@gmail.com, davem@davemloft.net,
	robh@kernel.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org, devicetree@vger.kernel.org
Subject: Re: [PATCH net-next v3 2/4] net: phy: Add a helper to return the index for of the internal delay
Date: Wed, 27 May 2020 02:42:20 +0200	[thread overview]
Message-ID: <20200527004220.GE782807@lunn.ch> (raw)
In-Reply-To: <20200526174716.14116-3-dmurphy@ti.com>

> +/**
> + * phy_get_delay_index - returns the index of the internal delay
> + * @phydev: phy_device struct
> + * @delay_values: array of delays the PHY supports
> + * @size: the size of the delay array
> + * @int_delay: the internal delay to be looked up
> + * @descending: if the delay array is in descending order
> + *
> + * Returns the index within the array of internal delay passed in.
> + * Return errno if the delay is invalid or cannot be found.
> + */
> +s32 phy_get_delay_index(struct phy_device *phydev, int *delay_values, int size,
> +			int int_delay, bool descending)
> +{
> +	if (int_delay < 0)
> +		return -EINVAL;
> +
> +	if (size <= 0)
> +		return -EINVAL;
> +
> +	if (descending)
> +		return phy_find_descending_delay(phydev, delay_values, size,
> +						 int_delay);
> +
> +	return phy_find_ascending_delay(phydev, delay_values, size, int_delay);
> +}
> +EXPORT_SYMBOL(phy_get_delay_index);

Do we really need this ascending vs descending? This array is not
coming from device tree of anything, it is a static list in the PHY
driver. I would just define it needs to be ascending and be done.

	Andrew

  reply	other threads:[~2020-05-27  0:42 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-26 17:47 [PATCH net-next v3 0/4] RGMII Internal delay common property Dan Murphy
2020-05-26 17:47 ` [PATCH net-next v3 1/4] dt-bindings: net: Add tx and rx internal delays Dan Murphy
2020-05-26 17:47 ` [PATCH net-next v3 2/4] net: phy: Add a helper to return the index for of the internal delay Dan Murphy
2020-05-27  0:42   ` Andrew Lunn [this message]
2020-05-27 12:13     ` Dan Murphy
2020-05-26 17:47 ` [PATCH net-next v3 3/4] dt-bindings: net: Add RGMII internal delay for DP83869 Dan Murphy
2020-05-26 17:47 ` [PATCH net-next v3 4/4] net: dp83869: Add RGMII internal delay configuration Dan Murphy
2020-05-27  0:52   ` Andrew Lunn
2020-05-27 12:23     ` Dan Murphy
2020-05-27 13:12       ` Andrew Lunn
2020-05-27 14:51         ` Dan Murphy
2020-05-27  0:54   ` Andrew Lunn

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