From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.7 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_ADSP_ALL, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7CDAEC3A5A2 for ; Fri, 23 Aug 2019 10:32:25 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 52832233A0 for ; Fri, 23 Aug 2019 10:32:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="chc1Ln9z"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=megous.com header.i=@megous.com header.b="AE8bLTOa" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 52832233A0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=megous.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=kuUpIkpwAGxqr00fZ+qshUilN4NztcL0HPGg6r7JBkk=; b=chc1Ln9zlSad4V jcQZJzUdT8H+m8wsqkzIoyhWtsLxW0OxXGTxKfY+qJmZSkOqxiOyBqmL2304NxbpEdlk31/IWK0d7 NiOHPvF1uX65wJ/HX2oLA1qLCiFh7mFaCyBM5adnC9ub3aQBjoF+CNGS8//N87BSYCUeouO+hD7+0 hlVGQUHQ1/d92G47VDIg9STb3PuUDwX9MO2IjBqMynZhY6MAuifP1kotsD0uyihqpUWsxXqLrI7FU snacgmSQRmuOpl7IAr7rEwn3TNyYzKbk32jY5N8ZbPJaLg68Z6iTQoPuuwbtv8kXwePEwg9i+0kWB BBcnVrFsu2xPFRbkYA4w==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1i16ro-0003mg-MA; Fri, 23 Aug 2019 10:32:24 +0000 Received: from vps.xff.cz ([195.181.215.36]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1i16rE-00036I-Q1 for linux-arm-kernel@lists.infradead.org; Fri, 23 Aug 2019 10:31:50 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megous.com; s=mail; t=1566556307; bh=aV9HCPL2dWHEvC4yV8gUMeG+A7RjDzsVcU9TnfVEEvo=; h=From:To:Cc:Subject:Date:References:From; b=AE8bLTOahfLkvWgkklCbF9ZCJq+vb40VaQZK+O+q5SBVGQ0jAcsXRFG9D6p6QSnaF LV08z3eoFXfN/sfe0GQPO2H2JD1DK8n/qK+zSGrgFASW9vH0hsIxCVOYG369B9kjDy WaeRclL6+8c+Gusxoeqq6TPLA7sb2TPj+r/BFR4o= From: megous@megous.com To: Maxime Ripard , Chen-Yu Tsai , Rob Herring , Marcel Holtmann , Johan Hedberg Subject: [RESEND PATCH 3/5] bluetooth: hci_bcm: Give more time to come out of reset Date: Fri, 23 Aug 2019 12:31:37 +0200 Message-Id: <20190823103139.17687-4-megous@megous.com> In-Reply-To: <20190823103139.17687-1-megous@megous.com> References: <20190823103139.17687-1-megous@megous.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190823_033149_003373_5F7F1DFC X-CRM114-Status: GOOD ( 10.17 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Ondrej Jirman , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-bluetooth@vger.kernel.org, "David S. Miller" , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Ondrej Jirman Some supported devices need more time to come out of reset (eg. BCM4345C5 in AP6256). I don't have/found a datasheet, so the value was arrive at experimentally with the Oprange Pi 3 board. Without increased delay, I got intermittent failures during probe. This is a Bluetooth 5.0 device, so maybe that's why it takes longer to initialize than the others. Signed-off-by: Ondrej Jirman --- drivers/bluetooth/hci_bcm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c index 95c312ae94cf..7646636f2d18 100644 --- a/drivers/bluetooth/hci_bcm.c +++ b/drivers/bluetooth/hci_bcm.c @@ -260,7 +260,7 @@ static int bcm_gpio_set_power(struct bcm_device *dev, bool powered) } /* wait for device to power on and come out of reset */ - usleep_range(10000, 20000); + usleep_range(100000, 120000); dev->res_enabled = powered; -- 2.23.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel