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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E8739CA0EF3 for ; Tue, 12 Sep 2023 15:31:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229661AbjILPbX (ORCPT ); Tue, 12 Sep 2023 11:31:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38666 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236410AbjILPbN (ORCPT ); Tue, 12 Sep 2023 11:31:13 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7CC2C10EB; Tue, 12 Sep 2023 08:31:09 -0700 (PDT) Received: from mercury (dyndsl-091-248-213-163.ewe-ip-backbone.de [91.248.213.163]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) (Authenticated sender: sre) by madras.collabora.co.uk (Postfix) with ESMTPSA id 4FD2E660731E; Tue, 12 Sep 2023 16:31:08 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1694532668; bh=GcRf6NZqzSJ/ZejYxqfXP7qn6W6Jnrp/hSglkVCFlrs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=nG0I9x5/OTM8Pkkjta1E6/B5IYvdYrU3qRVrbx4685ao0soN/75ACmc8TOebDMj4W k+lzFHVR8iOQzulHF3x2qx1DkK4+1HapoyeCzZBY8bnp24zB0QaWLyBv3BF5YZL0V2 Y6flQxS+jgA1JeDmZC2rUPrnumYhEwiQmJzmpvoWLDfkQL3DV6TPXutRei0wgmin/O 6eqb7+VDeVY3S42fGt8O/0jmrWv0FyJSVYns02pd9pcs+/GX0PWVkU8xELMaKlOAcP FaL9C+Lp0szSPlX7ZNWWrYJs2+C5F2+UD0Oj4x0u4JuVrzHcCiCWK1Xyjnz6dueZFZ qg60moI++Ycxw== Received: by mercury (Postfix, from userid 1000) id 929911060929; Tue, 12 Sep 2023 17:31:05 +0200 (CEST) Date: Tue, 12 Sep 2023 17:31:05 +0200 From: Sebastian Reichel To: Tony Lindgren Cc: linux-omap@vger.kernel.org, =?utf-8?Q?Beno=C3=AEt?= Cousson , devicetree@vger.kernel.org, Ivaylo Dimitrov , Carl Philipp Klemm , Merlijn Wajer , Pavel Machek Subject: Re: [PATCH 3/4] ARM: dts: ti: omap: Fix noisy serial with overrun-throttle-ms for mapphone Message-ID: <20230912153105.sflbdvbwxwy2q7kn@mercury.elektranox.org> References: <20230911040828.39386-1-tony@atomide.com> <20230911040828.39386-3-tony@atomide.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="qx6z5pkdcgg6ri3h" Content-Disposition: inline In-Reply-To: <20230911040828.39386-3-tony@atomide.com> Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org --qx6z5pkdcgg6ri3h Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, On Mon, Sep 11, 2023 at 07:08:26AM +0300, Tony Lindgren wrote: > On mapphone devices we may get lots of noise on the micro-USB port in deb= ug > uart mode until the phy-cpcap-usb driver probes. Let's limit the noise by > using overrun-throttle-ms. >=20 > 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. >=20 > Cc: Ivaylo Dimitrov > Cc: Carl Philipp Klemm > Cc: Merlijn Wajer > Cc: Pavel Machek > Cc: Sebastian Reichel > Signed-off-by: Tony Lindgren > --- A bit of a hack, but I guess it improves the status quo, so: Reviewed-by: Sebastian Reichel -- Sebastian > arch/arm/boot/dts/ti/omap/motorola-mapphone-common.dtsi | 1 + > 1 file changed, 1 insertion(+) >=20 > diff --git a/arch/arm/boot/dts/ti/omap/motorola-mapphone-common.dtsi b/ar= ch/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 =3D <&wakeupgen GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH > &omap4_pmx_core 0x17c>; > + overrun-throttle-ms =3D <500>; > }; > =20 > &uart4 { > --=20 > 2.42.0 --qx6z5pkdcgg6ri3h Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE72YNB0Y/i3JqeVQT2O7X88g7+poFAmUAhDkACgkQ2O7X88g7 +po3gA//T6aRUe305LA5x00jmtGJfD6JORhtsa1FXPvtHh7T/wyAJhCMCe4ve68d 6dd8uiVazWKr5HEaoOK7U4lqHig3oG+6gWYfk1SCtDH1+xONGYmNZ3OYxH8H2y95 VahWMsuexrd6MRkHmNbvDHQ5kkq3QxftawHoCRWU5ixljluPVTpYnPivjkt1dxM8 3sog9H3Hll0/ievr+yi/fdDjibE4QHEezlbS7pAtCxkGH8dP3gD8RT6JD+5e+wVP cJM8G9u6GXaATLnw+8nYHyStLBelufIMCW9Z9Eh17j3QlFqhvzZAxtEkfTa8DPRk 9k2fK7CV5Bf4DjthBy23Ht2z+CYgfi6IHoUv0l4VmKehRSslwypCGTA/MrtVpXB/ mDziSI75VFJIVRIAbl04vmOsSEjm9G0sMhuG5DMmSXxtvRcM7MgotaDCYl+SAVkO GxD9wUToS+PMg3i/e/dH7XxJ7NqFtu6W4UnbmC621UG/uVHwZqPkUkfjJ3cdr5EB ZcMWhE1Nm0aKkl8RSVMYG8V8c9Ir0ZhtlAVOkXx8pijk/JeFZ1791XmmgdYsO6l3 djY8ATFB4jU61npmf0yK2GQjUiH3ZXx/zqT3G2r37vw13wh8QSjSyDVCb3lm/HxS qHh7syn6iDt/DewrmiG9ZPzEbkJ248OAayBruk1hwgEcCXHH6+k= =YM5S -----END PGP SIGNATURE----- --qx6z5pkdcgg6ri3h--