[PATCH v6 3/3] PCI: imx6: Add support for i.MX6 PCIe controller

[Sascha Hauer]

On Mon, Sep 16, 2013 at 08:20:54AM +0000, Sean Cross wrote:
> Add support for the PCIe port present on the i.MX6 family of controllers.
> These use the Synopsis Designware core tied to their own PHY.
> 
> +static int pcie_phy_poll_ack(void __iomem *dbi_base, int exp_val)
> +{
> +	u32 val;
> +	u32 max_iterations = 10;
> +	u32 wait_counter = 0;
> +
> +	do {
> +		val = readl(dbi_base + PCIE_PHY_STAT);
> +		val = (val >> PCIE_PHY_STAT_ACK_LOC) & 0x1;
> +		wait_counter++;
> +
> +		if (val == exp_val)
> +			return 0;
> +
> +		udelay(1);
> +	} while ((wait_counter < max_iterations) && (val != exp_val));

The test for val != exp_val is unnecessary now of course.

With this and the devm_clk_get Shawn mentioned:

Acked-by: Sascha Hauer <s.hauer at pengutronix.de>

Sascha

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