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 34912C52D7C for ; Mon, 12 Aug 2024 11:49:40 +0000 (UTC) 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:In-Reply-To: Content-Transfer-Encoding:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=rR32OfomYnPAod7zuZyAeQ+ekw2kljmsFCxG2kUM+TY=; b=AAMXXW5LeU1Y9SVbOOzPqbn/ND yd9S90Nl69L1W1R1l9qw7BXtH9T9qay6RLAUEq/TaOb/W+MtyvD3dU5RxXKl6m0EidfF/9ocR3rYl p3SeuYlvuA5GGwqpHtkkHmF0Mm0AhHK+nhHxFDPudnz7c7sJjbKhsHzqWnEUnig0fGRBKOOWbGGOH 0UmgEy3wCEyLfivJYys+hDWMr9sW71FYSC8hOhgte/jI0i8whcem1mNP40kdrzDPVsSPS728wdXuY H8l4y/OeChJTv1xodxDkIKbZj/j+IessGHGb73cJK0cglJdT1Z6SzKsRhR1Q7YRO4w1UZGMz8Tnkb yh90cX7Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sdTYF-00000000Aer-0MW3; Mon, 12 Aug 2024 11:49:27 +0000 Received: from mail-m16.yeah.net ([220.197.32.19]) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sdTXd-00000000AZD-3qKp for linux-arm-kernel@lists.infradead.org; Mon, 12 Aug 2024 11:48:51 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yeah.net; s=s110527; h=Date:From:Subject:Message-ID:MIME-Version: Content-Type; bh=rR32OfomYnPAod7zuZyAeQ+ekw2kljmsFCxG2kUM+TY=; b=TE/ACCSKW9zHy5P760ILZFKHEACTTXrtntOFRsc/MfkWrsS8THkY2Kstq1Lt+d pvdYqZJ7g8EpE9cLGvEpKJRnYMY5nvXfgcghNnnV7J7DoHgaSbV26B5i+T8+W6vE kkR6gpXW9mwUJa1x+Wdb/koGOXANAGxWcYEQSSR9x5SyU= Received: from dragon (unknown [117.62.10.86]) by gzsmtp3 (Coremail) with SMTP id M88vCgC3H+2U9rlm+ZMQAg--.48176S3; Mon, 12 Aug 2024 19:48:38 +0800 (CST) Date: Mon, 12 Aug 2024 19:48:36 +0800 From: Shawn Guo To: Michal =?utf-8?B?Vm9rw6HEjQ==?= Cc: Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Conor Dooley , Krzysztof Kozlowski , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH] ARM: dts: imx6dl-yapp43: Increase LED current to match the yapp4 HW design Message-ID: References: <20240723142519.134083-1-michal.vokac@ysoft.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20240723142519.134083-1-michal.vokac@ysoft.com> X-CM-TRANSID: M88vCgC3H+2U9rlm+ZMQAg--.48176S3 X-Coremail-Antispam: 1Uf129KBjvdXoWrKryUZw1DAryfJrW8GFyDJrb_yoWfJrb_WF WxJFyIy397K3W8Ga15Krna934a93yUJF4xtw1Dta9agry0yF48Jw12qr93ZryUZF45Crnx Crs5Ww1xK39I9jkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IU0rsqJUUUUU== X-Originating-IP: [117.62.10.86] X-CM-SenderInfo: pvkd40hjxrjqh1hdxhhqhw/1tbiEgM5ZWa57+IRVwAAsZ X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240812_044850_288762_9A79A30C X-CRM114-Status: GOOD ( 12.03 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Jul 23, 2024 at 04:25:19PM +0200, Michal Vokáč wrote: > On the imx6dl-yapp4 revision based boards, the RGB LED is not driven > directly by the LP5562 driver but through FET transistors. Hence the LED > current is not determined by the driver but by the LED series resistors. > > On the imx6dl-yapp43 revision based boards, we removed the FET transistors > to drive the LED directly from the LP5562 but forgot to tune the output > current to match the previous HW design. > > Set the LED current on imx6dl-yapp43 based boards to the same values > measured on the imx6dl-yapp4 boards and limit the maximum current to 20mA. > > Fixes: 7da4734751e0 ("ARM: dts: imx6dl-yapp43: Add support for new HW revision of the IOTA board") > Cc: > Signed-off-by: Michal Vokáč Applied, thanks!