linux-kernel - Re: [patch 5/7] SDHCI: Samsung SDHCI (HSMMC) driver

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Date:	Fri, 14 Nov 2008 22:48:13 +0100
From:	Pierre Ossman <drzeus-mmc@...eus.cx>
To:	Ben Dooks <ben-linux@...ff.org>
Cc:	linux-kernel@...r.kernel.org, sdhci-devel@...t.drzeus.cx,
	Ben Dooks <ben-linux@...ff.org>
Subject: Re: [patch 5/7] SDHCI: Samsung SDHCI (HSMMC) driver

On Mon, 03 Nov 2008 20:09:49 +0000
Ben Dooks <ben-linux@...ff.org> wrote:

> +static void sdhci_s3c_sel_sclk(struct sdhci_host *host)
> +{
> +	struct sdhci_s3c *ourhost = to_s3c(host);
> +
> +	/* select sclk */
> +	u32 tmp = readl(host->ioaddr + 0x80);
> +
> +	if ((tmp & (3 << 4)) == (2 << 4))
> +		return;
> +
> +	tmp &= ~(3<<4);
> +	tmp |= (2 << 4);
> +	writel(tmp, host->ioaddr + 0x80);
> +}

No defines for this? This is not terribly readable.

> +	if (pdata->cfg_card)
> +		pdata->cfg_card(ourhost->pdev, host->ioaddr,
> +				ios, host->mmc->card);

What's the deal here? Hosts shouldn't know more about the card than the
MMC core tells them.

Since I have no hardware for this, could you take it upon you to handle
support for these chips? I'd like a MAINTAINERS patch for that as well.

Rgds
-- 
     -- Pierre Ossman

  Linux kernel, MMC maintainer        http://www.kernel.org
  rdesktop, core developer          http://www.rdesktop.org

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