From: Mikko Perttunen <mperttunen@nvidia.com>
To: rafael@kernel.org, viresh.kumar@linaro.org,
thierry.reding@gmail.com, jonathanh@nvidia.com,
krzysztof.kozlowski@canonical.com, lorenzo.pieralisi@arm.com,
robh@kernel.org, kw@linux.com, p.zabel@pengutronix.de,
rui.zhang@intel.com, daniel.lezcano@linaro.org, amitk@kernel.org
Cc: linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
Mikko Perttunen <mperttunen@nvidia.com>
Subject: [PATCH 2/5] reset: tegra-bpmp: Handle errors in BPMP response
Date: Wed, 15 Sep 2021 11:55:14 +0300 [thread overview]
Message-ID: <20210915085517.1669675-2-mperttunen@nvidia.com> (raw)
In-Reply-To: <20210915085517.1669675-1-mperttunen@nvidia.com>
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: Mikko Perttunen <mperttunen@nvidia.com>
---
drivers/reset/tegra/reset-bpmp.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/reset/tegra/reset-bpmp.c b/drivers/reset/tegra/reset-bpmp.c
index 24d3395964cc..4c5bba52b105 100644
--- a/drivers/reset/tegra/reset-bpmp.c
+++ b/drivers/reset/tegra/reset-bpmp.c
@@ -20,6 +20,7 @@ static int tegra_bpmp_reset_common(struct reset_controller_dev *rstc,
struct tegra_bpmp *bpmp = to_tegra_bpmp(rstc);
struct mrq_reset_request request;
struct tegra_bpmp_message msg;
+ int err;
memset(&request, 0, sizeof(request));
request.cmd = command;
@@ -30,7 +31,13 @@ static int tegra_bpmp_reset_common(struct reset_controller_dev *rstc,
msg.tx.data = &request;
msg.tx.size = sizeof(request);
- return tegra_bpmp_transfer(bpmp, &msg);
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err)
+ return err;
+ if (msg.rx.ret)
+ return -EINVAL;
+
+ return 0;
}
static int tegra_bpmp_reset_module(struct reset_controller_dev *rstc,
--
2.32.0
next prev parent reply other threads:[~2021-09-15 8:55 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-15 8:55 [PATCH 1/5] thermal: tegra-bpmp: Handle errors in BPMP response Mikko Perttunen
2021-09-15 8:55 ` Mikko Perttunen [this message]
2021-10-05 9:55 ` [PATCH 2/5] reset: " Philipp Zabel
2021-10-28 11:54 ` Jon Hunter
2021-11-02 13:10 ` Philipp Zabel
2021-11-12 11:30 ` Jon Hunter
2021-09-15 8:55 ` [PATCH 3/5] memory: tegra186-emc: " Mikko Perttunen
2021-09-20 8:34 ` (subset) " Krzysztof Kozlowski
2021-09-15 8:55 ` [PATCH 4/5] cpufreq: tegra186/tegra194: " Mikko Perttunen
2021-10-04 6:37 ` Viresh Kumar
2021-10-04 6:51 ` Mikko Perttunen
2021-10-04 7:01 ` Viresh Kumar
2021-10-04 7:02 ` Mikko Perttunen
2021-09-15 8:55 ` [PATCH 5/5] PCI: tegra194: " Mikko Perttunen
2021-10-07 18:21 ` Thierry Reding
2021-10-13 12:59 ` Lorenzo Pieralisi
2021-11-29 12:19 ` Lorenzo Pieralisi
2022-02-03 12:22 ` Lorenzo Pieralisi
2021-10-07 18:20 ` [PATCH 1/5] thermal: tegra-bpmp: " Thierry Reding
2022-02-25 12:22 ` Daniel Lezcano
2022-03-08 20:33 ` [thermal: thermal/next] " thermal-bot for Mikko Perttunen
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