From mboxrd@z Thu Jan 1 00:00:00 1970 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 0DEF618AE4 for ; Mon, 4 Dec 2023 09:33:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="IZLG7yVJ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C961DC433C8; Mon, 4 Dec 2023 09:33:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1701682396; bh=OLgKUOugKFgYFsPGut4AFROJGSLz7qzRFgod5ywQIyk=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=IZLG7yVJvvNMyUOnjwpQdyXaRfaWRcPNXdBNXzHvnK5t8bWnWmm3r1KsxLOlvdauG uv1QJVjJ8jhYKS4jHPR0OzSMOYLwtb+6ZBVIVDhgPRhZXngLXTcY9IdTS8OYMeFl9Q pchG5LokbvHlbIxWiAmGPKn3X6b+nybVfodB5uXVnGDlndZkHGo+xGgqfUBlMlBJM/ b4lVFfyh16qvzRIo8a4v3sRi1PCl7u6JDw8EP8cjwBuyULxvrT9NXpVEiTBAIRf6C7 OMvlwSNkKl9hcNVA5avQ0WUXI50gikwZNCRi9BMy0KQ2AmiPoJQho+46GY8vGRgtNS uq/6h2eCHqd/g== Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Date: Mon, 04 Dec 2023 10:33:08 +0100 From: Michael Walle To: Krzysztof Kozlowski Cc: Tony Lindgren , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Simha BN , Sam Ravnborg , Carl Philipp Klemm , Ivaylo Dimitrov , Merlijn Wajer , Pavel Machek , Sebastian Reichel , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org Subject: Re: [PATCH v2 01/10] dt-bindings: display: bridge: tc358775: make stby gpio and vdd supplies optional In-Reply-To: References: <20231202075514.44474-1-tony@atomide.com> <20231202075514.44474-2-tony@atomide.com> Message-ID: <686bfc416ff8adb5ee73064386a42f11@kernel.org> X-Sender: mwalle@kernel.org Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit >> For a normal operation, the vdd supplies nor the stby GPIO is needed. >> There are boards, where these voltages are statically enabled during >> board power-up. > > This means supply is still required. You mean using fixed-regulator? I didn't consider that. But yes, you're right. -michael 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 48331C4167B for ; Mon, 4 Dec 2023 09:33:22 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 610EA89906; Mon, 4 Dec 2023 09:33:21 +0000 (UTC) Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by gabe.freedesktop.org (Postfix) with ESMTPS id 91ACB10E327 for ; Mon, 4 Dec 2023 09:33:17 +0000 (UTC) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 32E4F60F9D; Mon, 4 Dec 2023 09:33:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C961DC433C8; Mon, 4 Dec 2023 09:33:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1701682396; bh=OLgKUOugKFgYFsPGut4AFROJGSLz7qzRFgod5ywQIyk=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=IZLG7yVJvvNMyUOnjwpQdyXaRfaWRcPNXdBNXzHvnK5t8bWnWmm3r1KsxLOlvdauG uv1QJVjJ8jhYKS4jHPR0OzSMOYLwtb+6ZBVIVDhgPRhZXngLXTcY9IdTS8OYMeFl9Q pchG5LokbvHlbIxWiAmGPKn3X6b+nybVfodB5uXVnGDlndZkHGo+xGgqfUBlMlBJM/ b4lVFfyh16qvzRIo8a4v3sRi1PCl7u6JDw8EP8cjwBuyULxvrT9NXpVEiTBAIRf6C7 OMvlwSNkKl9hcNVA5avQ0WUXI50gikwZNCRi9BMy0KQ2AmiPoJQho+46GY8vGRgtNS uq/6h2eCHqd/g== MIME-Version: 1.0 Date: Mon, 04 Dec 2023 10:33:08 +0100 From: Michael Walle To: Krzysztof Kozlowski Subject: Re: [PATCH v2 01/10] dt-bindings: display: bridge: tc358775: make stby gpio and vdd supplies optional In-Reply-To: References: <20231202075514.44474-1-tony@atomide.com> <20231202075514.44474-2-tony@atomide.com> Message-ID: <686bfc416ff8adb5ee73064386a42f11@kernel.org> X-Sender: mwalle@kernel.org Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Andrzej Hajda , Tony Lindgren , dri-devel@lists.freedesktop.org, Laurent Pinchart , Krzysztof Kozlowski , Sam Ravnborg , Ivaylo Dimitrov , Robert Foss , Jernej Skrabec , Simha BN , devicetree@vger.kernel.org, Conor Dooley , Jonas Karlman , Merlijn Wajer , Maxime Ripard , Rob Herring , Carl Philipp Klemm , Neil Armstrong , Pavel Machek , Sebastian Reichel , Thomas Zimmermann Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" >> For a normal operation, the vdd supplies nor the stby GPIO is needed. >> There are boards, where these voltages are statically enabled during >> board power-up. > > This means supply is still required. You mean using fixed-regulator? I didn't consider that. But yes, you're right. -michael