From patchwork Mon Sep 11 04:08:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lindgren X-Patchwork-Id: 721994 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 71024C71153 for ; Mon, 11 Sep 2023 04:08:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230389AbjIKEIz (ORCPT ); Mon, 11 Sep 2023 00:08:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53924 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230208AbjIKEIx (ORCPT ); Mon, 11 Sep 2023 00:08:53 -0400 Received: from muru.com (muru.com [72.249.23.125]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id C740019C; Sun, 10 Sep 2023 21:08:48 -0700 (PDT) Received: from hillo.muru.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTP id 08CF08027; Mon, 11 Sep 2023 04:08:46 +0000 (UTC) From: Tony Lindgren To: linux-omap@vger.kernel.org Cc: =?utf-8?q?Beno=C3=AEt_Cousson?= , devicetree@vger.kernel.org, Ivaylo Dimitrov , Carl Philipp Klemm , Merlijn Wajer , Pavel Machek , Sebastian Reichel Subject: [PATCH 3/4] ARM: dts: ti: omap: Fix noisy serial with overrun-throttle-ms for mapphone Date: Mon, 11 Sep 2023 07:08:26 +0300 Message-ID: <20230911040828.39386-3-tony@atomide.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230911040828.39386-1-tony@atomide.com> References: <20230911040828.39386-1-tony@atomide.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org On mapphone devices we may get lots of noise on the micro-USB port in debug uart mode until the phy-cpcap-usb driver probes. Let's limit the noise by using overrun-throttle-ms. Note that there is also a related separate issue where the charger cable connected may cause random sysrq requests until phy-cpcap-usb probes that still remains. Cc: Ivaylo Dimitrov Cc: Carl Philipp Klemm Cc: Merlijn Wajer Cc: Pavel Machek Cc: Sebastian Reichel Signed-off-by: Tony Lindgren Reviewed-by: Sebastian Reichel --- arch/arm/boot/dts/ti/omap/motorola-mapphone-common.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/ti/omap/motorola-mapphone-common.dtsi b/arch/arm/boot/dts/ti/omap/motorola-mapphone-common.dtsi --- a/arch/arm/boot/dts/ti/omap/motorola-mapphone-common.dtsi +++ b/arch/arm/boot/dts/ti/omap/motorola-mapphone-common.dtsi @@ -640,6 +640,7 @@ &uart1 { &uart3 { interrupts-extended = <&wakeupgen GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH &omap4_pmx_core 0x17c>; + overrun-throttle-ms = <500>; }; &uart4 {