linux-kernel - Re: [PATCH 11/11] memstick: add support for JMicron jmb38x MemoryStick host controller

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Date:	Wed, 5 Mar 2008 15:17:02 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	oakad@...mail.com.au
Cc:	linux-kernel@...r.kernel.org, oakad@...oo.com
Subject: Re: [PATCH 11/11] memstick: add support for JMicron jmb38x
 MemoryStick host controller

On Wed,  5 Mar 2008 03:02:28 +1100
oakad@...mail.com.au wrote:

> +static void jmb38x_ms_reset(struct jmb38x_ms_host *host)
> +{
> +	unsigned int host_ctl = readl(host->addr + HOST_CONTROL);
> +
> +	writel(host_ctl | HOST_CONTROL_RESET_REQ | HOST_CONTROL_RESET,
> +	       host->addr + HOST_CONTROL);
> +
> +	while (HOST_CONTROL_RESET_REQ
> +	       & (host_ctl = readl(host->addr + HOST_CONTROL))) {

host_ctl is written to but is not used again.

> +		ndelay(100);
> +		dev_dbg(&host->chip->pdev->dev, "reset\n");
> +	}
> +
> +	writel(INT_STATUS_ALL, host->addr + INT_STATUS_ENABLE);
> +	writel(INT_STATUS_ALL, host->addr + INT_SIGNAL_ENABLE);
> +
> +	dev_dbg(&host->chip->pdev->dev, "reset\n");
> +}
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