From: Tabi Timur-B04825 <B04825@freescale.com>
To: Zhao Chenhui-B35336 <B35336@freescale.com>
Cc: "linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
"galak@kernel.crashing.org" <galak@kernel.crashing.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Li Yang-R58472 <r58472@freescale.com>
Subject: Re: [PATCH 2/4] fsl_pmc: Add API to enable device as wakeup event source
Date: Sat, 11 Aug 2012 13:19:43 +0000 [thread overview]
Message-ID: <CAOZdJXXdgS5x2ZkuXb4wHckdqLzSM2xy-eYU3+28d_=JH3euxg@mail.gmail.com> (raw)
In-Reply-To: <1344329006-10645-2-git-send-email-chenhui.zhao@freescale.com>
On Tue, Aug 7, 2012 at 3:43 AM, Zhao Chenhui <chenhui.zhao@freescale.com> wrote:
> +int mpc85xx_pmc_set_wake(struct device *dev, bool enable)
> +{
> + int ret = 0;
> + struct device_node *clk_np;
> + const u32 *prop;
> + u32 pmcdr_mask;
> +
> + if (!pmc_regs) {
> + pr_err("%s: PMC is unavailable\n", __func__);
You have a 'struct device', so please use dev_err instead.
> + return -ENODEV;
> + }
> +
> + if (enable && !device_may_wakeup(dev))
> + return -EINVAL;
> +
> + clk_np = of_parse_phandle(dev->of_node, "fsl,pmc-handle", 0);
> + if (!clk_np)
> + return -EINVAL;
> +
> + prop = of_get_property(clk_np, "fsl,pmcdr-mask", NULL);
> + if (!prop) {
> + ret = -EINVAL;
> + goto out;
> + }
> + pmcdr_mask = be32_to_cpup(prop);
> +
> + if (enable)
> + /* clear to enable clock in low power mode */
> + clrbits32(&pmc_regs->pmcdr, pmcdr_mask);
> + else
> + setbits32(&pmc_regs->pmcdr, pmcdr_mask);
> +
> +out:
> + of_node_put(clk_np);
> + return ret;
> +}
> +EXPORT_SYMBOL_GPL(mpc85xx_pmc_set_wake);
Use EXPORT_SYMBOL, not EXPORT_SYMBOL_GPL.
> +
> +/**
> + * mpc85xx_pmc_set_lossless_ethernet - enable lossless ethernet
> + * in (deep) sleep mode
> + * @enable: True to enable event generation; false to disable
> + */
> +void mpc85xx_pmc_set_lossless_ethernet(int enable)
Should this be 'bool enable'?
> @@ -21,6 +22,17 @@ struct device_node;
>
> extern void fsl_rstcr_restart(char *cmd);
>
> +#ifdef CONFIG_FSL_PMC
> +extern int mpc85xx_pmc_set_wake(struct device *dev, bool enable);
> +extern void mpc85xx_pmc_set_lossless_ethernet(int enable);
Don't use 'extern' for functions.
--
Timur Tabi
Linux kernel developer at Freescale
next prev parent reply other threads:[~2012-08-11 13:19 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-07 8:43 [PATCH 1/4] powerpc/85xx: add sleep and deep sleep support Zhao Chenhui
2012-08-07 8:43 ` [PATCH 2/4] fsl_pmc: Add API to enable device as wakeup event source Zhao Chenhui
2012-08-11 13:19 ` Tabi Timur-B04825 [this message]
2012-08-14 9:58 ` Zhao Chenhui
2012-08-14 10:01 ` Zhao Chenhui
2012-08-14 12:27 ` Tabi Timur-B04825
2012-08-07 8:43 ` [PATCH 3/4] cpu: export cpu hotplug disable/enable functions as global functions Zhao Chenhui
2012-08-07 17:51 ` Kumar Gala
2012-08-08 6:13 ` Srivatsa S. Bhat
2012-08-08 7:11 ` Zhao Chenhui
2012-08-10 9:41 ` Zhao Chenhui
2012-08-07 8:43 ` [PATCH 4/4] powerpc/85xx: add support to JOG feature using cpufreq interface Zhao Chenhui
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