linux-kernel - [PATCH 1/9] crypto: ux500/hash - Prepare clock before enabling it

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Message-Id: <1366280825-31136-2-git-send-email-lee.jones@linaro.org>
Date:	Thu, 18 Apr 2013 11:26:57 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:	arnd@...db.de, linus.walleij@...ricsson.com,
	Lee Jones <lee.jones@...aro.org>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>,
	Andreas Westin <andreas.westin@...ricsson.com>,
	linux-crypto@...r.kernel.org
Subject: [PATCH 1/9] crypto: ux500/hash - Prepare clock before enabling it

If we fail to prepare the ux500-hash clock before enabling it the
platform will fail to boot. Here we insure this happens.

Cc: Herbert Xu <herbert@...dor.apana.org.au>
Cc: David S. Miller <davem@...emloft.net>
Cc: Andreas Westin <andreas.westin@...ricsson.com>
Cc: linux-crypto@...r.kernel.org
Signed-off-by: Lee Jones <lee.jones@...aro.org>
---
 drivers/crypto/ux500/hash/hash_core.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/crypto/ux500/hash/hash_core.c b/drivers/crypto/ux500/hash/hash_core.c
index 632c333..118386a 100644
--- a/drivers/crypto/ux500/hash/hash_core.c
+++ b/drivers/crypto/ux500/hash/hash_core.c
@@ -308,10 +308,10 @@ static int hash_disable_power(
 		device_data->restore_dev_state = true;
 	}
 
-	clk_disable(device_data->clk);
+	clk_disable_unprepare(device_data->clk);
 	ret = regulator_disable(device_data->regulator);
 	if (ret)
-		dev_err(dev, "[%s] regulator_disable() failed!", __func__);
+		dev_err(dev, "[%s] regulator_disable_unprepare() failed!", __func__);
 
 	device_data->power_state = false;
 
@@ -344,9 +344,9 @@ static int hash_enable_power(
 					__func__);
 			goto out;
 		}
-		ret = clk_enable(device_data->clk);
+		ret = clk_prepare_enable(device_data->clk);
 		if (ret) {
-			dev_err(dev, "[%s]: clk_enable() failed!",
+			dev_err(dev, "[%s]: clk_prepare_enable() failed!",
 					__func__);
 			ret = regulator_disable(
 					device_data->regulator);
-- 
1.7.10.4

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