From patchwork Thu Jun 23 10:09:46 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 12892039 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 197FEC433EF for ; Thu, 23 Jun 2022 10:11:09 +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-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=TgZBkMSZKAztsLEkAmZL/y+HX1tPK8vnzQOVcYpAh+I=; b=Wh8mwJ+qhOp5QM eLiAzu4IZvMqLUD59PmMLIzeQneg04obUoF+oyCalFf0ES3I8uwHqcbXUlOK+wZj10axIRgbYA2nx tB+uw6n2ivHTk9utJ4a/heQzX8xMBvBWBt88oJVVJd18zOVpTJBuPxMsv/Nbese7YofJX049417xM haONXoB/Cqo9HZrUS9LkvU/IJKxssErvB5jH64exQmSkQhv63NKjZU1gdUF5nhKEYXGzXSLE9uNCU XFUcnhj1fgFSM6l4b2nzGz3EM4HG4gxl3xbUyNc29/eNqvR4iIYc196nyOklrpM4JJuEF5Lw7DKx+ xDm4IV9nSCs/hgdDIfZg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o4Jmq-00ERtl-Pe; Thu, 23 Jun 2022 10:10:08 +0000 Received: from madras.collabora.co.uk ([46.235.227.172]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o4Jmn-00ERrl-5p; Thu, 23 Jun 2022 10:10:06 +0000 Received: from IcarusMOD.eternityproject.eu (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (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: kholk11) by madras.collabora.co.uk (Postfix) with ESMTPSA id 0EAF56601796; Thu, 23 Jun 2022 11:10:03 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1655979003; bh=+y7MosVyFMCeWL500cbHvDLPel8eiklTH/H6ZFzjZ1Y=; h=From:To:Cc:Subject:Date:From; b=EoOSch7c2DJRjoiRID56J9pJIkXxdG+jxrFhuCoajbcuS9w4U8+i3ecTcwFwRGZF+ ZJiIbbNNqkSlmgWyveYXvJiM7M9xG+K3hv6/LTDYN2eeOHBl/Px3GziBKAELJx+JoN UxeTQpejkI5tZGTAN23bCXxvtGd8mHHifERS9JSWLI8JizcmxfD0nS/CRSJmER5yDM 9589/DPPRG860wFpos+BWLSD1gQXxcaD1deaS7hk8iSQ6FhtQUPuTNH/fRq+Q8cybz HM0xfxegcBAZEO9cj8VjbUaHF/PukGheZR+QVSb5EwkoCLDYniRFV4sFfzf94Leo+0 AFmx/zGeuNM/Q== From: AngeloGioacchino Del Regno To: robh+dt@kernel.org Cc: krzysztof.kozlowski+dt@linaro.org, matthias.bgg@gmail.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, wenst@chromium.org, AngeloGioacchino Del Regno Subject: [PATCH 0/5] Allow getting regulator on MFG for multiple SoCs Date: Thu, 23 Jun 2022 12:09:46 +0200 Message-Id: <20220623100951.21153-1-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220623_031005_393954_EF0541B0 X-CRM114-Status: GOOD ( 10.38 ) 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 This is one of the steps to enable DVFS with the Panfrost driver: since Panfrost is already enabling the (required) MFG power domains and since the mtk-pm-domains driver is already responsible for actually enabling the SRAM PDN, it makes sense to make sure that the VSRAM supply is ON when trying to reset/enable the SRAM. For this reason, the MTK_SCPD_DOMAIN_SUPPLY flag was added to one more MFG domain, ensuring that the SRAM is actually powered and also not relying on the bootloader leaving this supply on; on the other hand, this is also making possible to avoid setting a sram-supply on the GPU node, making devfreq happy about having only one supply and finally allowing DVFS to happen. If no domain-supply is declared in devicetree, mtk-pm-domains driver probe will anyway keep going, so this is not breaking old devicetrees. No side effects either when this supply is declared for both a MFG domain and Panfrost together. This series has no dependencies. AngeloGioacchino Del Regno (5): soc: mediatek: mt8192-pm-domains: Allow probing vreg supply on MFG0/1 soc: mediatek: mt8183-pm-domains: Allow probing vreg supply on MFG_ASYNC soc: mediatek: mt8195-pm-domains: Allow probing vreg supply on MFG1 soc: mediatek: mt8186-pm-domains: Allow probing vreg supply on MFG1 arm64: dts: mediatek: mt8183-kukui: Assign sram supply to mfg_async pd arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi | 4 ++++ arch/arm64/boot/dts/mediatek/mt8183.dtsi | 2 +- drivers/soc/mediatek/mt8183-pm-domains.h | 1 + drivers/soc/mediatek/mt8186-pm-domains.h | 2 +- drivers/soc/mediatek/mt8192-pm-domains.h | 2 ++ drivers/soc/mediatek/mt8195-pm-domains.h | 2 +- 6 files changed, 10 insertions(+), 3 deletions(-)