From patchwork Fri Aug 23 10:31:37 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Ond=C5=99ej_Jirman?= X-Patchwork-Id: 1152102 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=megous.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=megous.com header.i=@megous.com header.b="AE8bLTOa"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 46FHkw0vpmz9s3Z for ; Fri, 23 Aug 2019 20:31:52 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405076AbfHWKbu (ORCPT ); Fri, 23 Aug 2019 06:31:50 -0400 Received: from vps.xff.cz ([195.181.215.36]:52664 "EHLO vps.xff.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390779AbfHWKbt (ORCPT ); Fri, 23 Aug 2019 06:31:49 -0400 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 Cc: Mark Rutland , "David S. Miller" , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-bluetooth@vger.kernel.org, Ondrej Jirman 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 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.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;