netdev - Re: [PATCH 6/7] fsl_pmc: Add API to enable device as wakeup event source

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Message-ID: <CAOZdJXXB9zJWqC+kPq7ZDdzePtp8XNBnWcf5UmE8Ye50U-G7Dg@mail.gmail.com>
Date:	Sat, 5 Nov 2011 00:08:24 +0000
From:	Tabi Timur-B04825 <B04825@...escale.com>
To:	Zhao Chenhui-B35336 <B35336@...escale.com>
CC:	"linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
	Li Yang-R58472 <r58472@...escale.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH 6/7] fsl_pmc: Add API to enable device as wakeup event
 source

On Fri, Nov 4, 2011 at 7:39 AM, Zhao Chenhui <chenhui.zhao@...escale.com> wrote:

> +       if (!pmc_regs) {
> +               printk(KERN_WARNING "PMC is unavailable\n");

Use pr_warn() and the other pr_xxx functions.

> +       pmcdr_mask = (u32 *)of_get_property(clk_np, "fsl,pmcdr-mask", NULL);

The typecast is unnecessary here.

> +       /* clear to enable clock in low power mode */
> +       if (enable)
> +               clrbits32(&pmc_regs->pmcdr, *pmcdr_mask);
> +       else
> +               setbits32(&pmc_regs->pmcdr, *pmcdr_mask);

You need to use be32_to_cpup() when dereferencing a pointer to a
device tree property.

-- 
Timur Tabi
Linux kernel developer at Freescale
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