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[2620:137:e000::1:20]) by mx.google.com with ESMTP id z19-20020aa7c653000000b004357d1075d9si300083edr.395.2022.06.18.18.51.01; Sat, 18 Jun 2022 18:51:27 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=Sdpw7YZH; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232781AbiFSBmV (ORCPT + 99 others); Sat, 18 Jun 2022 21:42:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40424 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229446AbiFSBmT (ORCPT ); Sat, 18 Jun 2022 21:42:19 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 246391274F; Sat, 18 Jun 2022 18:42:18 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id CD81BB80C9F; Sun, 19 Jun 2022 01:42:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 83DC7C3411A; Sun, 19 Jun 2022 01:42:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1655602935; bh=+MVs+jwINrjN6uflEK0SP3fdKNvAx+UdveYX6YEWcLs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Sdpw7YZHqDPexbuZIm7taeTXUA+/ersVicQqRhqctcORZqSbhYVmX25xumC1b2Gxp sEa1xGrMfM83YIIZ33YeEyDn7pblbZ20Q5NOom/XVAjVZTMYe4dZxEhNYaU46vxrEP p/EW/PpT0guzmQJ8DTXklXxY8PnLBOKznwQDsX+ZQeZJdLxRbthdUmX0oL/H3CnVud O6NjE0nVn+EI/leJpzNW/50ER9gC3UJ9hfj1yAp02qgZi0W1MUkybdnvkvSRufl3+W 5raR9Dc2Tky9a/tfyVxDNyMK0b66hDMjgMywb5PVgVPuo2Qr65qUfR+cSnI9NZ9fQ2 MNYh5Njw+w5dw== Date: Sun, 19 Jun 2022 09:42:00 +0800 From: Shawn Guo To: Ulrich =?iso-8859-1?Q?=D6lmann?= Cc: Rob Herring , Krzysztof Kozlowski , Sascha Hauer , NXP Linux Team , Fabio Estevam , Pengutronix Kernel Team , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Oleksij Rempel , Juergen Borleis , Michael Grzeschik , Marco Felsch , Lucas Stach , =?iso-8859-1?Q?S=F8ren?= Andersen , Sam Ravnborg Subject: Re: [PATCH] ARM: dts: imx6: skov: add pwm-regulator to control the panel's VCOM Message-ID: <20220619014200.GX254723@dragon> References: <20220517071814.3626702-1-u.oelmann@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20220517071814.3626702-1-u.oelmann@pengutronix.de> X-Spam-Status: No, score=-7.7 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, May 17, 2022 at 09:18:14AM +0200, Ulrich ?lmann wrote: > Skov's i.MX6 based boards come in different flavors which have different panels > attached. For optimal contrast experience each panel type needs an individual > common voltage (VCOM) to drive its TFT backplane. The latter is generated by an > LCD bias supply IC controlled by a pwm as input signal. Introduce a pwm- > regulator to describe this hardware property and parameterize it appropriately > for the different boards. > > Signed-off-by: Ulrich ?lmann Applied, thanks!