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

[Richard Zhao]

On Mon, Feb 21, 2011 at 11:06:24AM +0000, Russell King - ARM Linux wrote:
> 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?
correct. Thanks.

Richard
> 
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