From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753808AbaIVJss (ORCPT ); Mon, 22 Sep 2014 05:48:48 -0400 Received: from mailout1.w1.samsung.com ([210.118.77.11]:62961 "EHLO mailout1.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752350AbaIVJq5 (ORCPT ); Mon, 22 Sep 2014 05:46:57 -0400 X-AuditID: cbfec7f4-b7f156d0000063c7-1c-541ff00e38d3 From: Krzysztof Kozlowski To: Russell King , Dan Williams , Vinod Koul , linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, Ulf Hansson , Grant Likely , Lars-Peter Clausen , Michal Simek , "Rafael J. Wysocki" , Len Brown , Pavel Machek , Randy Dunlap , Alan Stern , linux-doc@vger.kernel.org, linux-pm@vger.kernel.org Cc: Kyungmin Park , Marek Szyprowski , Bartlomiej Zolnierkiewicz , Krzysztof Kozlowski Subject: [PATCH v6 2/4] amba: Add helper macros for (un)preparing AMBA clock Date: Mon, 22 Sep 2014 11:46:27 +0200 Message-id: <1411379189-3017-3-git-send-email-k.kozlowski@samsung.com> X-Mailer: git-send-email 1.9.1 In-reply-to: <1411379189-3017-1-git-send-email-k.kozlowski@samsung.com> References: <1411379189-3017-1-git-send-email-k.kozlowski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrILMWRmVeSWpSXmKPExsVy+t/xq7p8H+RDDPoP21hsnLGe1WL61AuM Fqun/mW1OPBnB6PF6xeGFmeb3rBbLJk8n9Vi1pS9TBYL25awWFzeNYfN4nPvEUaL25d5LdYe uctu8e5lhMXdU0fZLN7emc5iceb0JVaLCb8vsFkcXxtu8bJvP4uDiEdLcw+bx+YVWh6L97xk 8rhzbQ+bx5I3h1g9tlxtZ/GYffcHo0ffllWMHitWf2f3+LxJzmPv598sAdxRXDYpqTmZZalF +nYJXBl7Dx9kKTjAXnHp4UumBsY1bF2MnBwSAiYSfzZ+YYWwxSQu3FsPFOfiEBJYyijR0vCS GcLpY5J49riJHaSKTcBYYvPyJWBVIgJHWCSe3XsC5jALHGWUmN77lgmkSljAR+LVjR6gDg4O FgFVibl9MiBhXgE3iUtTprBArJOTOHlsMthqTgF3if3PWsAWCAHVHDk0m2kCI+8CRoZVjKKp pckFxUnpuYZ6xYm5xaV56XrJ+bmbGCHR8GUH4+JjVocYBTgYlXh4FzTJhwixJpYVV+YeYpTg YFYS4X36HCjEm5JYWZValB9fVJqTWnyIkYmDU6qBcfPMwiNu6fPrbso1S2Wt95PpXyi8QvHk LbGCvWGJMwOmq5TUZtR//6Gz89dxlpI+yebQu9N3usdtlr29Qmh3ctCe232FguW/SxpDXywR 5+jMuvLUNcCpWfqLgmPggVWPlq2U+ld/8qvvmoM5050LPokd/ZltKTSHffJU7n6z76suRqwz SzkYpsRSnJFoqMVcVJwIAIfCFfxkAgAA Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add amba_pclk_prepare() and amba_pclk_unprepare() macros for handling the AMBA bus clock by device drivers. Signed-off-by: Krzysztof Kozlowski --- include/linux/amba/bus.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h index fdd7e1b61f60..ad52027a9cbf 100644 --- a/include/linux/amba/bus.h +++ b/include/linux/amba/bus.h @@ -92,6 +92,12 @@ void amba_release_regions(struct amba_device *); #define amba_pclk_disable(d) \ do { if (!IS_ERR((d)->pclk)) clk_disable((d)->pclk); } while (0) +#define amba_pclk_prepare(d) \ + (IS_ERR((d)->pclk) ? 0 : clk_prepare((d)->pclk)) + +#define amba_pclk_unprepare(d) \ + do { if (!IS_ERR((d)->pclk)) clk_unprepare((d)->pclk); } while (0) + /* Some drivers don't use the struct amba_device */ #define AMBA_CONFIG_BITS(a) (((a) >> 24) & 0xff) #define AMBA_REV_BITS(a) (((a) >> 20) & 0x0f) -- 1.9.1