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soc: qcom: ocmem: return -EPROBE_DEFER is ocmem is not available

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If OCMEM is declared in DT, it is expected that it is present and
handled by the driver. The GPU driver will ignore -ENODEV error, which
typically means that OCMEM isn't defined in DT. Let ocmem return
-EPROBE_DEFER if it supposed to be used, but it is not probed (yet).

Fixes: 88c1e9404f ("soc: qcom: add OCMEM driver")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260323-ocmem-v1-3-ad9bcae44763@oss.qualcomm.com
[bjorn: s/ERR_PTR(dev_err_probe)/dev_err_ptr_probe/
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Dmitry Baryshkov 2026-03-23 03:20:59 +02:00 committed by Bjorn Andersson
parent 9dfd69cd89
commit 91b59009c7
1 changed files with 3 additions and 4 deletions
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7
drivers/soc/qcom/ocmem.c
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@ -203,10 +203,9 @@ struct ocmem *of_get_ocmem(struct device *dev)
ocmem = platform_get_drvdata(pdev);
put_device(&pdev->dev);
if (!ocmem) {
dev_err(dev, "Cannot get ocmem\n");
return ERR_PTR(-ENODEV);
}
if (!ocmem)
return dev_err_ptr_probe(dev, -EPROBE_DEFER, "Cannot get ocmem\n");
return ocmem;
}
EXPORT_SYMBOL_GPL(of_get_ocmem);