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 F2E73C43334 for ; Tue, 5 Jul 2022 15:07:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: In-Reply-To:MIME-Version:References:Message-ID:Subject:Cc:To:From:Date: Reply-To:Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date :Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=SRq/B/6xOP5tGrDm/Vq8WsntE3DyvOtrtL7NygWF5hU=; b=RCP89fCuUpppp1aHFE9HO7E53f 8hSAUUiNlrd/fDXzxlSRB1mux9KIvXVa2/lnX0j+SN3WLeHLpfZPMy8zeOXAeMr2T6R9PgYhRST8l VLstdUCaRfSFJmodsMkDrhqyAAgk7mel+sBPulBRN1jERo7HDC3XPLy+5K06lxRhOHv2/elRBCc0a LLaL1KtVRaGz3scOAxd4aSvCCcmAzt4s/x0wrwOW/P6w1lwdEg+p9WMCLtAGODQ49Qg221keiEZOD b7gJ+UVIQyMqcHPXTvHQ7r6psXid8NS5ccX0OvLV/DdhfN+RQkAox0Dp0wO0UoaPRwgXz7JtdOFNT vnxG/Xog==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o8k9W-0012cd-Gq; Tue, 05 Jul 2022 15:07:50 +0000 Received: from ams.source.kernel.org ([2604:1380:4601:e00::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o8k9L-0012Z6-5B; Tue, 05 Jul 2022 15:07:40 +0000 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 69A87B817D2; Tue, 5 Jul 2022 15:07:37 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5FA99C341C7; Tue, 5 Jul 2022 15:07:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1657033656; bh=vsE2Uo6WfEyXctqBCJ3lS6iBB4TAXOeD1CiiDdYC5Kc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=sv1aNTYToTaYYK64bJcX+bhHxp+ZmLhKQ+DsPfrwouhpB/xkDb6NtLWHOPzCjEXDj b0ZWn9nIPtls6tcJnCspdnuymjGd4UzXFZoXXlW9Wlftu9P+1hD589f00LttgabmW6 DYQjrJd/wDGv6qzN7B9TMnOJdC6CWCr2St68/hiNhUcWlPBHTLerK7z+4sQYQOPpZz qKjEQSaS2UWCSg48bBLczGgmP4OcWF0oRL8U77C1QMwAzC7gSJ5KgCsy58Z4CNlp0X UmXVCXOiDnezTzfPS1BmeY3Veyn4KHQ1VY2/l358QC5lm3BCceGiBt52xLpbz+2RR2 n4fH0jZjM365Q== Date: Tue, 5 Jul 2022 16:07:27 +0100 From: Mark Brown To: Michael Walle Cc: Han Xu , Krzysztof Kozlowski , Bough Chen , ashish.kumar@nxp.com, yogeshgaur.83@gmail.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, singh.kuldeep87k@gmail.com, tudor.ambarus@microchip.com, p.yadav@ti.com, miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-mtd@lists.infradead.org, festevam@gmail.com, dl-linux-imx , linux-arm-kernel@lists.infradead.org, zhengxunli@mxic.com.tw Subject: Re: [PATCH 07/11] dt-bindings: spi: spi-nxp-fspi: add a new property nxp,fspi-dll-slvdly Message-ID: References: <59d360ef-5374-c7a7-2995-854ab3715b25@linaro.org> <62f113a0cdb0d58bf04ab0b274912eb7@walle.cc> <20220705145226.tarpvub6bh67tj63@umbrella> MIME-Version: 1.0 In-Reply-To: X-Cookie: Only God can make random selections. X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220705_080739_537146_516D360E X-CRM114-Status: GOOD ( 14.88 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1549999097748531880==" Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org --===============1549999097748531880== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="4udQM6FbAizsjM/e" Content-Disposition: inline --4udQM6FbAizsjM/e Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Jul 05, 2022 at 04:58:40PM +0200, Michael Walle wrote: > Am 2022-07-05 16:52, schrieb Han Xu: > > IMO, use the unit "-degrees" makes it more complicate. Personaly I would > > calculate how many clock cycle delay needed, such as 1/4 clock cycle or > > half > > clock cycle. Using degree brings extra calculation. > What is the extra calculation here? For hardware engineer who has to > specify this, it is easier to give the delay in clock phase (in degrees) > rather than reading the documentation and transform that into a value > given in 1/32 part of a clock, that should be part of the driver. IME if it's a hardware engineer specifying things by the time they get as far as a software engineer they'll often have been turned into "write these values to these registers". --4udQM6FbAizsjM/e Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmLEU68ACgkQJNaLcl1U h9Bu8Af9EyBCmFmk3mzR3XypchGxUzMgpzu2lp5Y+4noP+jzxwkCC3HmaqS24VvW ft41g07lerfiYg2kCb86XMAlb5nXgdc1gaEAYS8tSRgiurRz/h1k1hq7sq2TGVr3 AfWFGc5K/k3oPRjMEfgrC+ozTPuEV6UNC4nOANcB7S6fXNT4IHIw2K/gN6iNcoZW iaygnVrlyXUCEOiR+vy+lBZU3xKJkw0zblwhobVpxJC3PhDIybaJPSB2i/BHJgQM BpcI3Axig8k6h15SZQzbO7KkHzRtw0SdAEUyDNsmqkhN4Hrm3oHZj27LIV4BFl80 YmBtn2mAnbCpa1u65sUZvTfFHSzMAQ== =DJMN -----END PGP SIGNATURE----- --4udQM6FbAizsjM/e-- --===============1549999097748531880== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/ --===============1549999097748531880==--