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[2620:137:e000::1:18]) by mx.google.com with ESMTPS id w32-20020a056870b3a000b000de193bcbb7si10420810oap.128.2022.03.28.15.44.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Mar 2022 15:44:59 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=RERJOIKf; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id BCC7F223840; Mon, 28 Mar 2022 14:50:43 -0700 (PDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243936AbiC1Oiq (ORCPT + 99 others); Mon, 28 Mar 2022 10:38:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54538 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243937AbiC1Oim (ORCPT ); Mon, 28 Mar 2022 10:38:42 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E26925F8E5 for ; Mon, 28 Mar 2022 07:37:00 -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 8E3C5B80E72 for ; Mon, 28 Mar 2022 14:36:59 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 20443C3410F; Mon, 28 Mar 2022 14:36:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1648478218; bh=EgjhJsyfkkEmUwALQVxv6IQFR/KBuoTskugCKopKgXI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=RERJOIKfE2LQJGNsr6kyhFC4xIrnvt1E+P65PpeeP3K9FPXU88STjITT6B2Wqiyq5 o/cWLYL/EH0oy+pC/LuhaPAGeCPIHMTU8d8GUPEIW39cXLtxCsqKlPN6EvSXv+k2wL lT4WEdmi0CVuGAot8WnZPI0GOuG0JGhvasMegPbRG1wsT6lHeNbA4UDJ7MagFKSkaq NmMT3HO3Vs/h9yOvbnVyEbqoG1m/3jlkvhd0i5Eh/PpRolz+6gSrBify2AhiLFgdFR yiwd91l4M4QTsTTyEm+rTDNEpAycg5X+90sOEPteeXcdxSqbBNmUEzjWHSgUfrVPEh 262znetyLZ3WQ== Date: Mon, 28 Mar 2022 15:36:53 +0100 From: Mark Brown To: Charles Keepax Cc: Jonathan Bakker , Liam Girdwood , patches@opensource.cirrus.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] regulator: wm8994: Add an off-on delay for WM8994 variant Message-ID: References: <20220328131132.GI38351@ediswmail.ad.cirrus.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="g9xa4Sd2B6kwk7yI" Content-Disposition: inline In-Reply-To: <20220328131132.GI38351@ediswmail.ad.cirrus.com> X-Cookie: What hath Bob wrought? X-Spam-Status: No, score=-2.3 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,MAILING_LIST_MULTI, RDNS_NONE,SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=unavailable 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 --g9xa4Sd2B6kwk7yI Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Mon, Mar 28, 2022 at 01:11:32PM +0000, Charles Keepax wrote: > Part of me wonders if we should just apply it to 1811 and 8958 > anyway, I suspect they have the same IP for the LDO and its just > the datasheets never got updated. I had a go chasing the apps guys > here but we are a little short on people who remember details of > these parts. So I guess we trust the datasheets for now, unless > you have any strong feelings, Mark? With something like this the on/off time may be a requirement of the thing being powered rather than the regulator, the device might see enough power loss to confuse state but not trip the power on reset. --g9xa4Sd2B6kwk7yI Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmJByAUACgkQJNaLcl1U h9ChTAf/fQvhW8hgxhxvYQzcr6WQ1K5jWew2gfT/kPx8rceOZwGEitwYx02uVDZS 3XTkN7D4u7iwDszYE3NFJuamW/yPYSW7l+w9sFHOh0kk6rmrUXVWFGdPC5jEzujI stnGaBxBgR7f2hq0CljzxtKbOcL0yaYmEHtLv728JZvF8zGZNj9xfb1in0dG4y8u PPE27+SDmoJhJ1ufWS2/15rzt/LLcqRhieGmpPVeCO7/0wYI5eR4WK5RFr1o+MAc pVs1iNvp1qe0JHMf8ra+5Dhzh4uo4fH1SUsFmgLAu0Zsa/WUC5M5Cx4EHYHao4OE IZr2w+hUcXW3UxS49Uvrh+FNhaJh/w== =2dYE -----END PGP SIGNATURE----- --g9xa4Sd2B6kwk7yI--