linux-kernel - [PATCH v5 16/22] crypto: qce: core: Make clocks optional

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Message-Id: <20211110105922.217895-17-bhupesh.sharma@linaro.org>
Date:   Wed, 10 Nov 2021 16:29:16 +0530
From:   Bhupesh Sharma <bhupesh.sharma@...aro.org>
To:     linux-arm-msm@...r.kernel.org, linux-crypto@...r.kernel.org
Cc:     bhupesh.sharma@...aro.org, bhupesh.linux@...il.com,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        robh+dt@...nel.org, agross@...nel.org, herbert@...dor.apana.org.au,
        davem@...emloft.net, stephan@...hold.net,
        Thara Gopinath <thara.gopinath@...aro.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>
Subject: [PATCH v5 16/22] crypto: qce: core: Make clocks optional

From: Thara Gopinath <thara.gopinath@...aro.org>

On certain Snapdragon processors, the crypto engine clocks are enabled by
default by security firmware and the driver need not/ should not handle the
clocks. Make acquiring of all the clocks optional in crypto engine driver
so that the driver initializes properly even if no clocks are specified in
the dt.

Cc: Bjorn Andersson <bjorn.andersson@...aro.org>
Cc: Rob Herring <robh+dt@...nel.org>
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@...aro.org>
[Massage the commit log]
Signed-off-by: Thara Gopinath <thara.gopinath@...aro.org>
---
 drivers/crypto/qce/core.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/crypto/qce/core.c b/drivers/crypto/qce/core.c
index dd2604f5ce6a..98784d63d78c 100644
--- a/drivers/crypto/qce/core.c
+++ b/drivers/crypto/qce/core.c
@@ -213,19 +213,19 @@ static int qce_crypto_probe(struct platform_device *pdev)
 	if (IS_ERR(qce->mem_path))
 		return PTR_ERR(qce->mem_path);
 
-	qce->core = devm_clk_get(qce->dev, "core");
+	qce->core = devm_clk_get_optional(qce->dev, "core");
 	if (IS_ERR(qce->core)) {
 		ret = PTR_ERR(qce->core);
 		goto err;
 	}
 
-	qce->iface = devm_clk_get(qce->dev, "iface");
+	qce->iface = devm_clk_get_optional(qce->dev, "iface");
 	if (IS_ERR(qce->iface)) {
 		ret = PTR_ERR(qce->iface);
 		goto err;
 	}
 
-	qce->bus = devm_clk_get(qce->dev, "bus");
+	qce->bus = devm_clk_get_optional(qce->dev, "bus");
 	if (IS_ERR(qce->bus)) {
 		ret = PTR_ERR(qce->bus);
 		goto err;
-- 
2.31.1