diff options
| -rw-r--r-- | drivers/soc/tegra/pmc.c | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index 0bc983f6b088..6948f78c7a4a 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -2903,11 +2903,16 @@ static int tegra_pmc_probe(struct platform_device *pdev) if (IS_ERR(pmc->aotag)) return PTR_ERR(pmc->aotag); + /* "scratch" is an optional aperture */ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "scratch"); - pmc->scratch = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(pmc->scratch)) - return PTR_ERR(pmc->scratch); + if (res) { + pmc->scratch = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(pmc->scratch)) + return PTR_ERR(pmc->scratch); + } else { + pmc->scratch = NULL; + } } pmc->clk = devm_clk_get_optional(&pdev->dev, "pclk"); @@ -2919,12 +2924,15 @@ static int tegra_pmc_probe(struct platform_device *pdev) * PMC should be last resort for restarting since it soft-resets * CPU without resetting everything else. */ - err = devm_register_reboot_notifier(&pdev->dev, - &tegra_pmc_reboot_notifier); - if (err) { - dev_err(&pdev->dev, "unable to register reboot notifier, %d\n", - err); - return err; + if (pmc->scratch) { + err = devm_register_reboot_notifier(&pdev->dev, + &tegra_pmc_reboot_notifier); + if (err) { + dev_err(&pdev->dev, + "unable to register reboot notifier, %d\n", + err); + return err; + } } err = devm_register_sys_off_handler(&pdev->dev, |