On Mon, 18 Jun 2007 21:56:21 +0100
[email protected] wrote:
> +/* power management support */
> +
> +static int sm501_plat_suspend(struct platform_device *pdev, pm_message_t state)
> +{
> + struct sm501_devdata *sm = platform_get_drvdata(pdev);
> +
> + sm->in_suspend = 1;
> + sm->pm_misc = readl(sm->regs + SM501_MISC_CONTROL);
> +
> + sm501_dump_regs(sm);
> + return 0;
> +}
> +
> +static int sm501_plat_resume(struct platform_device *pdev)
> +{
> + struct sm501_devdata *sm = platform_get_drvdata(pdev);
> +
> + sm501_dump_regs(sm);
> + sm501_dump_gate(sm);
> + sm501_dump_clk(sm);
> +
> + /* check to see if we are in the same state as when suspended */
> +
> + if (readl(sm->regs + SM501_MISC_CONTROL) != sm->pm_misc) {
> + dev_info(sm->dev, "SM501_MISC_CONTROL changed over sleep\n");
> + writel(sm->pm_misc, sm->regs + SM501_MISC_CONTROL);
> +
> + /* our suspend causes the controller state to change,
> + * either by something attempting setup, power loss,
> + * or an external reset event on power change */
> +
> + if (sm->platdata && sm->platdata->init) {
> + sm501_init_regs(sm, sm->platdata->init);
> + }
> + }
> +
> + /* dump our state from resume */
> +
> + sm501_dump_regs(sm);
> + sm501_dump_clk(sm);
> +
> + sm->in_suspend = 0;
> +
> + return 0;
> +}
> +
> +
> /* Initialisation data for PCI devices */
>
> static struct sm501_initdata sm501_pci_initdata = {
> @@ -1126,6 +1207,8 @@ static struct platform_driver sm501_plat
> },
> .probe = sm501_plat_probe,
> .remove = sm501_plat_remove,
> + .suspend = sm501_plat_suspend,
> + .resume = sm501_plat_resume,
> };
Do we want to compile this in if CONFIG_PM=n?
-
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