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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CDC77C76196 for ; Fri, 31 Mar 2023 09:30:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230413AbjCaJa4 (ORCPT ); Fri, 31 Mar 2023 05:30:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37860 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231698AbjCaJam (ORCPT ); Fri, 31 Mar 2023 05:30:42 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 465AF1B7F4; Fri, 31 Mar 2023 02:30:19 -0700 (PDT) Received: from localhost (unknown [IPv6:2a01:e0a:2c:6930:5cf4:84a1:2763:fe0d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: bbrezillon) by madras.collabora.co.uk (Postfix) with ESMTPSA id 50BE66603130; Fri, 31 Mar 2023 10:29:35 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1680254975; bh=lMAebDq17jh7DdNz0cBlqr1fwRmhsP03/MJGfkU1R+8=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=EPBOOuTWx/PQ4Jo1UY5Tr8aSNr+DKcHxRpQT9tov4AyHcg8SvcD7zt/LzzgIoDRtB w51cc+rm15Z4WQmg1oZ5iDhLV6/JQf7Um3d7mAmyVkIakqT4ucQLvxqHjnqLIE3h2d XFJJA6hV5ldZ4z2dnTzMcsEglkbGJQGnAX4SO/dSguxe6zagccaIPi6AQl0VQGCnPu 3Io9CUJdL140asZCXYIW1mT8jWKx0wxWMO9bRTtHN4qNomLqqcEBHHfHx4KiQuXJiC NC3GzF1JzNdu9/J+B/fbWsgpSad5gfrdDFxvyl1fzvpC1wyWs0OpxEDIui4H87FOKZ be8yyv1mbztbQ== Date: Fri, 31 Mar 2023 11:29:32 +0200 From: Boris Brezillon To: AngeloGioacchino Del Regno Cc: Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, steven.price@arm.com, robh+dt@kernel.org, alyssa.rosenzweig@collabora.com, wenst@chromium.org, kernel@collabora.com Subject: Re: [PATCH v1 RESEND 2/2] drm/panfrost: Add basic support for speed binning Message-ID: <20230331112932.73b39d5a@collabora.com> In-Reply-To: References: <20230323090822.61766-1-angelogioacchino.delregno@collabora.com> <20230323090822.61766-3-angelogioacchino.delregno@collabora.com> <5814d779-0635-43fe-3fe8-31c130f05b3a@collabora.com> <20230331104914.708b194e@collabora.com> Organization: Collabora X-Mailer: Claws Mail 4.1.1 (GTK 3.24.36; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Fri, 31 Mar 2023 10:57:46 +0200 AngeloGioacchino Del Regno wrote: > Il 31/03/23 10:49, Boris Brezillon ha scritto: > > On Fri, 31 Mar 2023 10:11:07 +0200 > > AngeloGioacchino Del Regno > > wrote: > > > >> Il 23/03/23 10:08, AngeloGioacchino Del Regno ha scritto: > >>> Some SoCs implementing ARM Mali GPUs are subject to speed binning: > >>> this means that some versions of the same SoC model may need to be > >>> limited to a slower frequency compared to the other: > >>> this is being addressed by reading nvmem (usually, an eFuse array) > >>> containing a number that identifies the speed binning of the chip, > >>> which is usually related to silicon quality. > >>> > >>> To address such situation, add basic support for reading the > >>> speed-bin through nvmem, as to make it possible to specify the > >>> supported hardware in the OPP table for GPUs. > >>> This commit also keeps compatibility with any platform that does > >>> not specify (and does not even support) speed-binning. > >>> > >>> Signed-off-by: AngeloGioacchino Del Regno > >> > >> Hello maintainers, > >> I've seen that this got archived in the dri-devel patchwork; because of that and > >> only that, I'm sending this ping to get this patch reviewed. > > > > Looks good to me. If you can get a DT maintainer to review the binding > > (Rob?), I'd be happy to queue the series to drm-misc-next. > > > > The binding was acked by Krzysztof already... so, just to be sure: > > Krzysztof, can the binding [1] get picked? Oops, sorry, I didn't realize Krzysztof is a DT maintainer.