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

From: Lee Jones
Date: Thu Apr 18 2013 - 06:27:38 EST


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@xxxxxxxxxxxxxxxxxxx>
Cc: David S. Miller <davem@xxxxxxxxxxxxx>
Cc: Andreas Westin <andreas.westin@xxxxxxxxxxxxxx>
Cc: linux-crypto@xxxxxxxxxxxxxxx
Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
---
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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