From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D020F606A324 for ; Tue, 3 Nov 2026 22:37:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=E8kPsRaS; dkim=pass (2048-bit key, unprotected) header.d=sntech.de header.i=@sntech.de header.a=rsa-sha256 header.s=gloria202408 header.b=1cUgVVtf DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:Cc:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Unsubscribe-Post:List-Owner; bh=xsK4w3jLbP3XPnppugEgOy/hVuJlXHxWXgSfS8UpOYQ=; b=E8kPsRaS9VWwOFV/4Qpgbqa0mF LZu2hgJvh549LPIXJbb6n93gheJgjHBt+Yk5F333TKQf40vKxwW8H//dklKSGsCxb6yDs4Lo72VrB Il4q3fmZ4At/VD7E8MEI0Mk66XChTGog1gPmmiP4m5gV/anLtdULa+PNpXM3DyG93bYI3ctPh/UPM b6HAu92Z0/hJ4Q/WYvWN+PlSodnUoBy4mtPLaoWpZf79VXplF5628jyNncnTU9MN8GiuI3ptZmPpj lo/2OzolNKvZM05VxRwHxwvgfh1hFkx/zg8jXQOOKOKeeoUjSLe/KnDd6u2fau6qRONuu6b+d0yEB 1fnqR8Vw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xON83-00000003rkn-3LGJ; Tue, 03 Nov 2026 22:37:19 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by bombadil.infradead.org with esmtps (Exim 4.100.1 #2 (Red Hat Linux)) id 1xON81-00000003rkJ-0uhj; Tue, 03 Nov 2026 22:37:18 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sntech.de; s=gloria202408; h=Content-Type:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Reply-To; bh=xsK4w3jLbP3XPnppugEgOy/hVuJlXHxWXgSfS8UpOYQ=; b=1cUgVVtfjLR8OTj9loqDdJcnxM 4NUPW4VgzqHCdc5C+ue3DYNVoZBzBLZWHJuAHQHcQtvNh5vcTI9Z2pCCMdpjIx66hpAiQWW+iRDzL F1eD+vZJZSsRqCURVFCc5rPOgrRzhNlrvyxjJB0tsMUeUGiehjeiHHk+DJ8oXrVp/ol+VF44yvkEB x1xDE2rQn/Sb6eOQdMpgVKWuDhTqz1I6qrSz9RqpJDgXl3XDc6eIfqndVxF88WgTQRolhu6e7HvVH 2OKj3NgFNzHpVG1L+1DUVVpELXsirdhAdiZdsjStcx1DHsbBO2FVWcU+FvQagEV3Fl4JAR76iDGWn uFEGY8mA==; From: Heiko =?UTF-8?B?U3TDvGJuZXI=?= To: tomeu@tomeuvizoso.net, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, joro@8bytes.org, will@kernel.org, robin.murphy@arm.com, ulfh@kernel.org, p.zabel@pengutronix.de, ogabbay@kernel.org, zhangqing@rock-chips.com, Jiaxing Hu Cc: royalnet026@gmail.com, abel.vesa@oss.qualcomm.com, sebastian.reichel@collabora.com, sidong.yang@furiosa.ai, u.kleine-koenig@baylibre.com, chaoyi.chen@rock-chips.com, diederik@cknow-tech.com, alchark@flipper.net, leonard@lausen.nl, jeff.hugo@oss.qualcomm.com, rfoss@kernel.org, dri-devel@lists.freedesktop.org, linux-rockchip@lists.infradead.org, iommu@lists.linux.dev, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Jiaxing Hu Subject: Re: [PATCH v15 10/15] pmdomain: rockchip: cycle an optional power-domain reset on power-on Date: Tue, 03 Nov 2026 23:36:51 +0100 Message-ID: <2685454.vzjCzTo3RI@diego> In-Reply-To: <20261101082307.151957-11-gahing@gahingwoo.com> References: <20261101082307.151957-1-gahing@gahingwoo.com> <20261101082307.151957-11-gahing@gahingwoo.com> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261103_143717_273356_9F374DB3 X-CRM114-Status: UNSURE ( 8.20 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.1 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-10.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Am Sonntag, 1. November 2026, 09:23:02 Mitteleurop=C3=A4ische Normalzeit sc= hrieb Jiaxing Hu: > Some Rockchip domains come out of power-on with their bus interface in an > undefined state. On the RK3576 NPU this shows up as a hang on the first > register access after the domain is switched on, and pulsing the domain's > reset at this point clears it. >=20 > Take the domain node's reset if it has one, and pulse it between > releasing idle and restoring QoS. The reset is optional, so domains that > do not list one are unaffected. >=20 > Signed-off-by: Jiaxing Hu > Reviewed-by: Abel Vesa Reviewed-by: Heiko Stuebner