Commit 13324edb authored by Mikko Perttunen's avatar Mikko Perttunen Committed by Krzysztof Kozlowski
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memory: tegra186-emc: Handle errors in BPMP response 



The return value from tegra_bpmp_transfer indicates the success or
failure of the IPC transaction with BPMP. If the transaction
succeeded, we also need to check the actual command's result code.
Add code to do this.

Signed-off-by: default avatarMikko Perttunen <mperttunen@nvidia.com>
Link: https://lore.kernel.org/r/20210915085517.1669675-3-mperttunen@nvidia.com


Signed-off-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
parent 77b14c9d

drivers/memory/tegra/tegra186-emc.c

+4 −0
Original line number Diff line number Diff line
@@ -197,6 +197,10 @@ static int tegra186_emc_probe(struct platform_device *pdev) 
		dev_err(&pdev->dev, "failed to EMC DVFS pairs: %d\n", err);

		goto put_bpmp;

	}

	if (msg.rx.ret < 0) {

		dev_err(&pdev->dev, "EMC DVFS MRQ failed: %d (BPMP error code)\n", msg.rx.ret);

		goto put_bpmp;

	}



	emc->debugfs.min_rate = ULONG_MAX;

	emc->debugfs.max_rate = 0;