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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 9C4C5C88E56 for ; Sun, 13 Sep 2026 10:44:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Date:Message-Id:Subject: References:In-Reply-To:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=x7s4QSlFCbueNO3rmvH4/8cFbTye2ch10n+ETBh3m7I=; b=GhxA30OkYSf3B2 JRXLuAp3e4lN8l68tAegw2xJhUgvxMa2Dlm67toAeSeunb4Ut/njELJBjteqgO9oss5tPxBaSBypd Ja4+PuS3GwwHI4G8ZALg7V9R4MTI8upwrsC2e8BUaO0QOEHf2S7grV0be4kq/vxaI0nN/ph2o+asE mQfU1BvBQ1BSeFhXmw0Y/AWuiwDcqrNLGcQIehiuy6mY+fQVVN6gm+MrHeINDvN1x91eVUTf/3t1k IEDJF2v4LU9kHKFa4Tjn6lk4FetCWDUR/ld1yACOSjWX3UWaSbOi1mckA/OF0E8sysUhaFSpQ2INo 5/31bfeeB9B0Tx2QBv/Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x5hh6-00000001b7l-0xfg; Sun, 13 Sep 2026 10:44:20 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x5hh4-00000001b7d-1D9D for linux-phy@lists.infradead.org; Sun, 13 Sep 2026 10:44:18 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 6A9B860DD4; Sun, 13 Sep 2026 10:44:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 76EFF1F000FF; Sun, 13 Sep 2026 10:44:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789296257; bh=cS1Ju2GfKqEA/FP9zJHnQJwF6JmphHpLlloN1nGWOQo=; h=From:To:Cc:In-Reply-To:References:Subject:Date; b=djcJx+TlSn6dwlhznxWXYMpg0j3ZzKupXcM4XcdsbX954BAsSfnM7DO6mf+ug5sbE 3pk9f3ZGOCsDG/tBpL2eqrSq0iAisZnZidiB3WIMYvz6d6q4rnetQd2wjIYBnlkp4P Rjwt+KFcl0wrv/VtEgBYuz1yDLTWj2KVre2rO7wVU8VFzSl+cLLaZ4rNfqcsEdrFNa vNt9x7a0ROJK4rdc/hHg2eKENGsFtdf02yeWmRRbmsNhmgTjvnJYTQGsQlkSlTmpcA hx8oQsSyVpLbRyA4TTDQWnHeIghwSXZMGgrQR3H/oIvYeobJ30ikpMQmzCMr5oDocw wRXutpvjPQrug== From: Vinod Koul To: yoshihiro.shimoda.uh@renesas.com, neil.armstrong@linaro.org, geert+renesas@glider.be, magnus.damm@gmail.com, prabhakar.mahadev-lad.rj@bp.renesas.com, Claudiu Beznea Cc: claudiu.beznea@tuxon.dev, linux-renesas-soc@vger.kernel.org, linux-phy@lists.infradead.org, linux-kernel@vger.kernel.org, Claudiu Beznea , stable@vger.kernel.org, Pavel Machek , Nobuhiro Iwamatsu In-Reply-To: <20260716183246.3183877-1-claudiu.beznea+renesas@tuxon.dev> References: <20260716183246.3183877-1-claudiu.beznea+renesas@tuxon.dev> Subject: Re: [PATCH v5] phy: renesas: rcar-gen3-usb2: Avoid long delay in atomic context Message-Id: <178929625199.194170.14605036307704113858.b4-ty@kernel.org> Date: Sun, 13 Sep 2026 16:14:11 +0530 MIME-Version: 1.0 X-Mailer: b4 0.14.3 X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org On Thu, 16 Jul 2026 21:32:46 +0300, Claudiu Beznea wrote: > The OTG PHY initialization sequence needs to wait for 20 ms at a specific > step, as described in commit 72c0339c115b ("phy: renesas: > rcar-gen3-usb2: follow the hardware manual procedure"). > > Commit 55a387ebb921 ("phy: renesas: rcar-gen3-usb2: Lock around hardware > registers and driver data") tried to address various problems in the > rcar-gen3-usb2 driver and converted the mutex protecting HW register > accesses to a spin lock, leaving, however, a long delay in the critical > section protected by the spin lock. This may become a problem, > especially on RT kernels. > > [...] Applied, thanks! [1/1] phy: renesas: rcar-gen3-usb2: Avoid long delay in atomic context commit: 48e97c59a49c9e90270f5e3d221db253b76de5da Best regards, -- ~Vinod -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy