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soc/tegra: pmc: Don't fail if "aotag" is not present

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The "aotog" is an optional aperture, so if that aperture is not defined
for a given device, then initialise the 'aotag' pointer to NULL instead
of returning an error. Note that the PMC driver will not use 'aotag'
pointer if initialised to NULL.

Co-developed-by: Shardar Mohammed <smohammed@nvidia.com>
Signed-off-by: Shardar Mohammed <smohammed@nvidia.com>
Signed-off-by: Prathamesh Shete <pshete@nvidia.com>
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Prathamesh Shete
2025-11-14 16:17:11 +00:00
committed by Thierry Reding
parent 688dfe40b4
commit 1c458bbe4b
1 changed files with 10 additions and 3 deletions
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13
drivers/soc/tegra/pmc.c
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@@ -2897,9 +2897,16 @@ static int tegra_pmc_probe(struct platform_device *pdev)
if (IS_ERR(pmc->wake))
return PTR_ERR(pmc->wake);
pmc->aotag = devm_platform_ioremap_resource_byname(pdev, "aotag");
if (IS_ERR(pmc->aotag))
return PTR_ERR(pmc->aotag);
/* "aotag" is an optional aperture */
res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
"aotag");
if (res) {
pmc->aotag = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(pmc->aotag))
return PTR_ERR(pmc->aotag);
} else {
pmc->aotag = NULL;
}
/* "scratch" is an optional aperture */
res = platform_get_resource_byname(pdev, IORESOURCE_MEM,