On Fri, 2015-07-24 at 20:46 +0800, Chenhui Zhao wrote:
> +static void mpc85xx_pmc_set_wake(struct device *dev, void *enable)
> {
> int ret;
> + u32 value[2];
> +
> + if (!device_may_wakeup(dev))
> + return;
> +
> + if (!pmc_regs) {
> + dev_err(dev, "%s: PMC is unavailable\n", __func__);
> + return;
> + }
> +
> + ret = of_property_read_u32_array(dev->of_node, "sleep", value, 2);
This will crash on any device without an of_node.
> + if (ret) {
> + dev_dbg(dev, "%s: Can not find the \"sleep\" property.\n",
> + __func__);
> + return;
> + }
> +
> + if (*(int *)enable)
> + pmc_pmcdr_mask &= ~value[1];
> + else
> + pmc_pmcdr_mask |= value[1];
> +
> + if ((value[1] & 0xe0) && (pmc_flag & PMC_LOSSLESS))
> + pmc_powmgtcsr = POWMGTCSR_LOSSLESS;
> +}
What is 0xe0?
-Scott
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
