linux-kernel - Re: [Patch 2/3] via-sdmmc: via-sdmmc.c

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Date:	Tue, 16 Dec 2008 12:58:02 +0100
From:	Oliver Neukum <oliver@...kum.org>
To:	JosephChan@....com.tw
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [Patch 2/3] via-sdmmc: via-sdmmc.c

Am Dienstag, 16. Dezember 2008 12:41:35 schrieb JosephChan@....com.tw:
> +       spin_lock_irqsave(&host->lock, flags);
> +
> +       addrbase = vcrdr_chip->pcictrl_mmiobase;
> +       writeb(PCI_DMA_CLK_SDC, addrbase + PCIDMACLK_REG);
> +       vcrdr_chip->cur_device = DEV_SDC;
> +
> +       addrbase = vcrdr_chip->sdhc_mmiobase;
> +       status = readw(addrbase + SDSTATUS_REG);
> +       if (!(status & SD_STS_SLOTG)) {
> +               if (host->mrq) {
> +                       pr_err("%s: Card removed during transfer!\n",
> +                              mmc_hostname(host->mmc));
> +                       host->mrq->cmd->error = -ENOMEDIUM;
> +                       tasklet_schedule(&host->finish_tasklet);
> +               }
> +
> +               addrbase = vcrdr_chip->pcictrl_mmiobase;
> +               writeb(PCI_CLK_375K, addrbase + PCISDCCLK_REG);
> +
> +               via_reset_pcictrl(host);

This means a long delay with interrupts off. Is this really needed?

	Regards
		Oliver