From: Petlozu Pravareshwar <petlozup@nvidia.com>
Date: Tue, 6 Sep 2022 13:51:17 +0000 (+0000)
Subject: soc/tegra: pmc: Check device node status property
X-Git-Tag: v6.1-rc1~155^2~12^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=74f7f183d81c26a53c2b1708364069d391b1b4d6;p=thirdparty%2Flinux.git

soc/tegra: pmc: Check device node status property

In early_initcall, check if PMC device is available for use
and avoid accessing PMC resources if the device node status
property is set to disabled.

Signed-off-by: Manish Bhardwaj <mbhardwaj@nvidia.com>
Signed-off-by: Petlozu Pravareshwar <petlozup@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---

diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index 961b2de163078..678e8bc8a45d1 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -4044,7 +4044,7 @@ static int __init tegra_pmc_early_init(void)
 		return -ENXIO;
 	}
 
-	if (np) {
+	if (of_device_is_available(np)) {
 		pmc->soc = match->data;
 
 		if (pmc->soc->maybe_tz_only)