From nobody Fri Dec 19 18:59:56 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 719705102B; Sun, 24 Mar 2024 22:37:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711319845; cv=none; b=Y1sZMc6ljy/5VJmhtjTix55QTVx08eJgD2hjG2vRquRDDcKoV71libvJcD+H6tF2b8JdNsulAbqMF7RJUG6iq3uvjEGe0y7J1UjRGvWEg7Kn7ZxJXtUzRJnTP0tFTk18Yugb0ycYEo550Ad58GRzSrcB0FHjwHAjFlOnWe4qFck= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711319845; c=relaxed/simple; bh=i8WxCooOi6vx5cFxryVnmLSk4xFvJqunsS2uEQTcELQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=NmdknFOHCjC8L1k2bpUe58JXLEbLI+PB91flGvQFkv0PIvtGl6GSrzgxfHQY20GamEwl8hdU8xkN8wYlv8nsZHch/0BorX5WvH4U/+tHIOLI/AhY2l1v1T0IbpPa2chUKsa0yW8pPGUuzzDKP3qQKxxI5gOywSVIRMK45bs6ZkE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Jw+IKGZV; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Jw+IKGZV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 58893C433B2; Sun, 24 Mar 2024 22:37:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711319845; bh=i8WxCooOi6vx5cFxryVnmLSk4xFvJqunsS2uEQTcELQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Jw+IKGZVy3S1eXLg8MGiwHfzKbrkx2lOZiF3IUGyUYfaz2g9psyWynrtUpVjKS//n UrjcSi60uK2qDe0Zy7wCSccK2tGmZVof6i4HzAkPqRY0oGfQX6pf8VQ1kb9Cqdh5kZ JxLkmOnmjHdKn3Cr/ovAjx/06bxkQMlFKagaDDNyqCtH1gIRLAPyN8PbRVlNTevkm9 0OFiFGuvEZdMJxNNxlhdqT7AYuYuq8gU0KcOJBrBa7MjhXUiwBal6mW9jpTbcbOJCX Kd4vedZZbjdywz7lEKhIfbU8UeFROlxIeOGeXYRRWLwo2zkUocaqymJXQ9Ihx+UZaB 92Rff9t/h6vRA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Jayesh Choudhary , Nishanth Menon , Tomi Valkeinen , Aradhya Bhatia , Enric Balletbo i Serra , Vignesh Raghavendra , Sasha Levin Subject: [PATCH 6.8 148/715] arm64: dts: ti: k3-am69-sk: remove assigned-clock-parents for unused VP Date: Sun, 24 Mar 2024 18:25:27 -0400 Message-ID: <20240324223455.1342824-149-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240324223455.1342824-1-sashal@kernel.org> References: <20240324223455.1342824-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Jayesh Choudhary [ Upstream commit cfdb4f7ffdb855c1a3d274dc7757e780dcbf2d55 ] VP2 and VP3 are unused video ports and VP3 share the same parent clock as VP1 causing issue with pixel clock setting for HDMI (VP1). The current DM firmware does not support changing parent clock if it is shared by another component. It returns 0 for the determine_rate query before causing set_rate to set the clock at default maximum of 1.8GHz which is a lot more than the maximum frequency videoports can support (600MHz) causing SYNC LOST issues. So remove the parent clocks for unused VPs to avoid conflict. Fixes: 6f8605fd7d11 ("arm64: dts: ti: k3-am69-sk: Add DP and HDMI support") Reported-by: Nishanth Menon Signed-off-by: Jayesh Choudhary Reviewed-by: Tomi Valkeinen Reviewed-by: Aradhya Bhatia Tested-by: Enric Balletbo i Serra Link: https://lore.kernel.org/r/20240201142308.4954-1-j-choudhary@ti.com Signed-off-by: Vignesh Raghavendra Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/ti/k3-am69-sk.dts | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-am69-sk.dts b/arch/arm64/boot/dts/ti= /k3-am69-sk.dts index 8da5915798688..370980eb59b02 100644 --- a/arch/arm64/boot/dts/ti/k3-am69-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am69-sk.dts @@ -918,13 +918,9 @@ &dss { pinctrl-names =3D "default"; pinctrl-0 =3D <&dss_vout0_pins_default>; assigned-clocks =3D <&k3_clks 218 2>, - <&k3_clks 218 5>, - <&k3_clks 218 14>, - <&k3_clks 218 18>; + <&k3_clks 218 5>; assigned-clock-parents =3D <&k3_clks 218 3>, - <&k3_clks 218 7>, - <&k3_clks 218 16>, - <&k3_clks 218 22>; + <&k3_clks 218 7>; }; =20 &serdes_wiz4 { --=20 2.43.0