[PATCH 5/5] mmc: sdhci: add quirk SDHCI_QUIRK_FIX_NO_INT_IN_MULTI_BLK_IO

[Russell King - ARM Linux]

On Mon, Feb 21, 2011 at 05:54:55PM +0800, Richard Zhao wrote:
> +	if (host->quirks & SDHCI_QUIRK_FIX_NO_INT_IN_MULTI_BLK_IO) {
> +		if (readl(host->ioaddr + SDHCI_VENDOR_SPEC) & 0x2)
> +			writel(readl(host->ioaddr + SDHCI_VENDOR_SPEC) & ~0x2,
> +					host->ioaddr + SDHCI_VENDOR_SPEC);

Is it necessary to read the register twice, or would:

		u32 val = readl(host->ioaddr + SDHCI_VENDOR_SPEC);
		if (val & 0x02)
			writel(val & ~0x02, host->ioaddr + SDHCI_VENDOR_SPEC);

be clearer and more obvious?