linux-kernel - [PATCH] cpufreq: qcom-hw: Use optional irq API

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Date:   Tue, 16 Nov 2021 18:03:46 -0800
From:   Stephen Boyd <swboyd@...omium.org>
To:     Viresh Kumar <viresh.kumar@...aro.org>,
        "Rafael J . Wysocki" <rafael@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-pm@...r.kernel.org,
        Thara Gopinath <thara.gopinath@...aro.org>
Subject: [PATCH] cpufreq: qcom-hw: Use optional irq API

Use platform_get_irq_optional() to avoid a noisy error message when the
irq isn't specified. The irq is definitely optional given that we only
care about errors that are -EPROBE_DEFER here.

Cc: Thara Gopinath <thara.gopinath@...aro.org>
Signed-off-by: Stephen Boyd <swboyd@...omium.org>
---
 drivers/cpufreq/qcom-cpufreq-hw.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/cpufreq/qcom-cpufreq-hw.c b/drivers/cpufreq/qcom-cpufreq-hw.c
index a2be0df7e174..b442d4983a22 100644
--- a/drivers/cpufreq/qcom-cpufreq-hw.c
+++ b/drivers/cpufreq/qcom-cpufreq-hw.c
@@ -382,9 +382,11 @@ static int qcom_cpufreq_hw_lmh_init(struct cpufreq_policy *policy, int index)
 	 * Look for LMh interrupt. If no interrupt line is specified /
 	 * if there is an error, allow cpufreq to be enabled as usual.
 	 */
-	data->throttle_irq = platform_get_irq(pdev, index);
-	if (data->throttle_irq <= 0)
-		return data->throttle_irq == -EPROBE_DEFER ? -EPROBE_DEFER : 0;
+	data->throttle_irq = platform_get_irq_optional(pdev, index);
+	if (data->throttle_irq == -ENXIO)
+		return 0;
+	if (data->throttle_irq < 0)
+		return data->throttle_irq;
 
 	data->cancel_throttle = false;
 	data->policy = policy;

base-commit: fa55b7dcdc43c1aa1ba12bca9d2dd4318c2a0dbf
-- 
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