Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932603Ab3EOJwp (ORCPT ); Wed, 15 May 2013 05:52:45 -0400 Received: from mail-wg0-f42.google.com ([74.125.82.42]:58523 "EHLO mail-wg0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932551Ab3EOJwk (ORCPT ); Wed, 15 May 2013 05:52:40 -0400 From: Lee Jones To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, balbi@ti.com, linux-usb@vger.kernel.org, linux-crypto@vger.kernel.org, davem@davemloft.net, herbert@gondor.hengli.com.au, vinod.koul@intel.com Cc: arnd@arndb.de, linus.walleij@stericsson.com, srinidhi.kasagar@stericsson.com, Lee Jones , Andreas Westin Subject: [PATCH 15/39] crypto: ux500/cryp - Prepare clock before enabling it Date: Wed, 15 May 2013 10:51:38 +0100 Message-Id: <1368611522-9984-16-git-send-email-lee.jones@linaro.org> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1368611522-9984-1-git-send-email-lee.jones@linaro.org> References: <1368611522-9984-1-git-send-email-lee.jones@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2048 Lines: 63 If we fail to prepare the ux500-cryp clock before enabling it the platform will fail to boot. Here we insure this happens. Cc: Herbert Xu Cc: David S. Miller Cc: Andreas Westin Cc: linux-crypto@vger.kernel.org Acked-by: Ulf Hansson Acked-by: Arnd Bergmann Signed-off-by: Lee Jones --- drivers/crypto/ux500/cryp/cryp_core.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/crypto/ux500/cryp/cryp_core.c b/drivers/crypto/ux500/cryp/cryp_core.c index 32f4806..ccdf173 100644 --- a/drivers/crypto/ux500/cryp/cryp_core.c +++ b/drivers/crypto/ux500/cryp/cryp_core.c @@ -1458,11 +1458,17 @@ static int ux500_cryp_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 = cryp_enable_power(device_data->dev, device_data, false); if (ret) { dev_err(dev, "[%s]: cryp_enable_power() failed!", __func__); - goto out_clk; + goto out_clk_unprepare; } cryp_error = cryp_check(device_data); @@ -1523,6 +1529,9 @@ static int ux500_cryp_probe(struct platform_device *pdev) out_power: cryp_disable_power(device_data->dev, device_data, false); +out_clk_unprepare: + clk_unprepare(device_data->clk); + out_clk: clk_put(device_data->clk); @@ -1593,6 +1602,7 @@ static int ux500_cryp_remove(struct platform_device *pdev) dev_err(&pdev->dev, "[%s]: cryp_disable_power() failed", __func__); + clk_unprepare(device_data->clk); clk_put(device_data->clk); regulator_put(device_data->pwr_regulator); -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/