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Commit 58ba67dd authored by Lee Jones's avatar Lee Jones Committed by Linus Walleij
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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: David S. Miller <davem@davemloft.net>
Cc: Andreas Westin <andreas.westin@stericsson.com>
Cc: linux-crypto@vger.kernel.org
Acked-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Acked-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 50511449

drivers/crypto/ux500/hash/hash_core.c

+11 −1
Original line number Diff line number Diff line
@@ -1726,11 +1726,17 @@ static int ux500_hash_probe(struct platform_device *pdev) 
		goto out_regulator;

	}



	ret = clk_prepare(device_data->clk);

	if (ret) {

		dev_err(dev, "[%s] clk_prepare() failed!", __func__);

		goto out_clk;

	}



	/* Enable device power (and clock) */

	ret = hash_enable_power(device_data, false);

	if (ret) {

		dev_err(dev, "[%s]: hash_enable_power() failed!", __func__);

		goto out_clk;

		goto out_clk_unprepare;

	}



	ret = hash_check_hw(device_data);
@@ -1762,6 +1768,9 @@ static int ux500_hash_probe(struct platform_device *pdev) 
out_power:

	hash_disable_power(device_data, false);



out_clk_unprepare:

	clk_unprepare(device_data->clk);



out_clk:

	clk_put(device_data->clk);
@@ -1826,6 +1835,7 @@ static int ux500_hash_remove(struct platform_device *pdev) 
		dev_err(dev, "[%s]: hash_disable_power() failed",

			__func__);



	clk_unprepare(device_data->clk);

	clk_put(device_data->clk);

	regulator_put(device_data->regulator);