From patchwork Mon Aug 27 23:36:12 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Walmsley X-Patchwork-Id: 1378681 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork1.kernel.org (Postfix) with ESMTP id AAA3C3FCAE for ; Mon, 27 Aug 2012 23:42:24 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1T68u4-0000dt-Pk; Mon, 27 Aug 2012 23:39:33 +0000 Received: from utopia.booyaka.com ([74.50.51.50]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1T68tO-0000KI-GP for linux-arm-kernel@lists.infradead.org; Mon, 27 Aug 2012 23:38:53 +0000 Received: (qmail 15369 invoked by uid 1019); 27 Aug 2012 23:38:48 -0000 MBOX-Line: From nobody Mon Aug 27 17:36:12 2012 Subject: [PATCH 5/5] hwrng: OMAP: remove SoC restrictions from driver registration To: linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org From: Paul Walmsley Date: Mon, 27 Aug 2012 17:36:12 -0600 Message-ID: <20120827233611.15045.19688.stgit@dusk.lan> In-Reply-To: <20120827232922.15045.56522.stgit@dusk.lan> References: <20120827232922.15045.56522.stgit@dusk.lan> User-Agent: StGit/0.16-37-g27ac3 MIME-Version: 1.0 X-Spam-Note: CRM114 invocation failed X-Spam-Score: -2.1 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.1 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -0.2 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: linux-kernel@vger.kernel.org, Herbert Xu , Matt Mackall X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Remove the SoC restriction code from the OMAP RNG driver. The integration code in arch/arm/*omap* should handle this. The device shouldn't be created if it doesn't exist on the currently-booted SoC. This allows us to remove some OMAP-specific cpu_is_omap*() calls from the driver. Also, if other OMAP chips have RNGs that can be used by Linux, there will be no need to modify the driver. Signed-off-by: Paul Walmsley Cc: Matt Mackall Cc: Herbert Xu --- arch/arm/mach-omap1/devices.c | 3 +++ drivers/char/hw_random/omap-rng.c | 3 --- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-omap1/devices.c b/arch/arm/mach-omap1/devices.c index 7f3d9d2..aedd7a4 100644 --- a/arch/arm/mach-omap1/devices.c +++ b/arch/arm/mach-omap1/devices.c @@ -377,6 +377,9 @@ static struct platform_device omap1_rng_device = { static void omap1_init_rng(void) { + if (!cpu_is_omap16xx()) + return; + (void) platform_device_register(&omap1_rng_device); } diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c index 748fcc8..a5effd8 100644 --- a/drivers/char/hw_random/omap-rng.c +++ b/drivers/char/hw_random/omap-rng.c @@ -220,9 +220,6 @@ static struct platform_driver omap_rng_driver = { static int __init omap_rng_init(void) { - if (!cpu_is_omap16xx() && !cpu_is_omap24xx()) - return -ENODEV; - return platform_driver_register(&omap_rng_driver); }