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 X-Spam-Level: X-Spam-Status: No, score=-10.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8AC28C5B57D for ; Wed, 3 Jul 2019 02:15:38 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 6056F21873 for ; Wed, 3 Jul 2019 02:15:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="eycM2Now"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="Cszx2o5n" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6056F21873 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=v/X7fcivIIWflJeRfcuyFQWHb4y1jPpf4QnDDI/DYo0=; b=eycM2NowD9QqSB UJMLbXzmzyNrQoDyL/oJq2Vezm7Si6mc+kq5UiWrmCSXIMuDCT3z6oJi2kwHcELYaDFzSixE5njEz ZhvPVGUapjpZO2TtDO1zcRBxLqgDsMT1ho/dTH6B2X1iLWRP3HiCSxjcHCO1gUpoBRDXEWtbLbWHc C9I0Pe2G6IEoHf5RWzg4cuF5NlBAh/PVvmcEoLJXIFSH2XkPLVbR81LDmIw6s9US9t3dE64xW0MSf vqiuvBcXvBYPSKnXQhcdnADyuF7v3Yy12nmIWN+WnCC/4Fk6T0ZnFr09BN17TyfxX/uYMShNlwwPn SMUVuRG5vTv3CRDhDARw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hiUnq-0003PL-FL; Wed, 03 Jul 2019 02:15:22 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hiUnl-0003OI-Gd for linux-amlogic@lists.infradead.org; Wed, 03 Jul 2019 02:15:18 +0000 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 86B8621873; Wed, 3 Jul 2019 02:15:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1562120117; bh=yfKz8Pgy3xUbbCrtwVExGp4uzeldW4cOAyhyQTJFsFE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Cszx2o5nZL5X9URylEmFnv42BogCzeB9ZcZniss5l647gs0Ewlw/OSOWCfVKrLAp7 6NlxwublEB8Ua3sHyiXsibz9BlL+fu/Quh1/Wn1oxwzIXTVanCp4cCyDSXq3QeY5LX AeUnU+vIVQbZiw3vPQz+wzUpZ7t+UO/YXk+fyNJo= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH AUTOSEL 5.1 02/39] ARM: dts: meson8b: fix the operating voltage of the Mali GPU Date: Tue, 2 Jul 2019 22:14:37 -0400 Message-Id: <20190703021514.17727-2-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190703021514.17727-1-sashal@kernel.org> References: <20190703021514.17727-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190702_191517_565717_1C3C9D11 X-CRM114-Status: GOOD ( 11.85 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Martin Blumenstingl , Kevin Hilman , devicetree@vger.kernel.org, linux-amlogic@lists.infradead.org, Sasha Levin Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org From: Martin Blumenstingl [ Upstream commit 26d65140e92a626e39c73c9abf769fd174bf5076 ] Amlogic's vendor kernel defines an OPP for the GPU on Meson8b boards with a voltage of 1.15V. It turns out that the vendor kernel relies on the bootloader to set up the voltage. The bootloader however sets a fixed voltage of 1.10V. Amlogic's patched u-boot sources (uboot-2015-01-15-23a3562521) confirm this: $ grep -oiE "VDD(EE|AO)_VOLTAGE[ ]+[0-9]+" board/amlogic/configs/m8b_* board/amlogic/configs/m8b_m100_v1.h:VDDAO_VOLTAGE 1100 board/amlogic/configs/m8b_m101_v1.h:VDDAO_VOLTAGE 1100 board/amlogic/configs/m8b_m102_v1.h:VDDAO_VOLTAGE 1100 board/amlogic/configs/m8b_m200_v1.h:VDDAO_VOLTAGE 1100 board/amlogic/configs/m8b_m201_v1.h:VDDEE_VOLTAGE 1100 board/amlogic/configs/m8b_m201_v1.h:VDDEE_VOLTAGE 1100 board/amlogic/configs/m8b_m202_v1.h:VDDEE_VOLTAGE 1100 Another hint at this is the VDDEE voltage on the EC-100 and Odroid-C1 boards. The VDDEE regulator supplies the Mali GPU. It's basically a copy of the VCCK (CPU supply) which means it's limited to 0.86V to 1.14V. Update the operating voltage of the Mali GPU on Meson8b to 1.10V so it matches with what the vendor u-boot sets. Fixes: c3ea80b6138cae ("ARM: dts: meson8b: add the Mali-450 MP2 GPU") Signed-off-by: Martin Blumenstingl Signed-off-by: Kevin Hilman Signed-off-by: Sasha Levin --- arch/arm/boot/dts/meson8b.dtsi | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/arm/boot/dts/meson8b.dtsi b/arch/arm/boot/dts/meson8b.dtsi index fe84a8c3ce81..6b80aff32fc2 100644 --- a/arch/arm/boot/dts/meson8b.dtsi +++ b/arch/arm/boot/dts/meson8b.dtsi @@ -163,23 +163,23 @@ opp-255000000 { opp-hz = /bits/ 64 <255000000>; - opp-microvolt = <1150000>; + opp-microvolt = <1100000>; }; opp-364300000 { opp-hz = /bits/ 64 <364300000>; - opp-microvolt = <1150000>; + opp-microvolt = <1100000>; }; opp-425000000 { opp-hz = /bits/ 64 <425000000>; - opp-microvolt = <1150000>; + opp-microvolt = <1100000>; }; opp-510000000 { opp-hz = /bits/ 64 <510000000>; - opp-microvolt = <1150000>; + opp-microvolt = <1100000>; }; opp-637500000 { opp-hz = /bits/ 64 <637500000>; - opp-microvolt = <1150000>; + opp-microvolt = <1100000>; turbo-mode; }; }; -- 2.20.1 _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sasha Levin Subject: [PATCH AUTOSEL 5.1 02/39] ARM: dts: meson8b: fix the operating voltage of the Mali GPU Date: Tue, 2 Jul 2019 22:14:37 -0400 Message-ID: <20190703021514.17727-2-sashal@kernel.org> References: <20190703021514.17727-1-sashal@kernel.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20190703021514.17727-1-sashal@kernel.org> Sender: linux-kernel-owner@vger.kernel.org To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Martin Blumenstingl , Kevin Hilman , Sasha Levin , devicetree@vger.kernel.org, linux-amlogic@lists.infradead.org List-Id: devicetree@vger.kernel.org From: Martin Blumenstingl [ Upstream commit 26d65140e92a626e39c73c9abf769fd174bf5076 ] Amlogic's vendor kernel defines an OPP for the GPU on Meson8b boards with a voltage of 1.15V. It turns out that the vendor kernel relies on the bootloader to set up the voltage. The bootloader however sets a fixed voltage of 1.10V. Amlogic's patched u-boot sources (uboot-2015-01-15-23a3562521) confirm this: $ grep -oiE "VDD(EE|AO)_VOLTAGE[ ]+[0-9]+" board/amlogic/configs/m8b_* board/amlogic/configs/m8b_m100_v1.h:VDDAO_VOLTAGE 1100 board/amlogic/configs/m8b_m101_v1.h:VDDAO_VOLTAGE 1100 board/amlogic/configs/m8b_m102_v1.h:VDDAO_VOLTAGE 1100 board/amlogic/configs/m8b_m200_v1.h:VDDAO_VOLTAGE 1100 board/amlogic/configs/m8b_m201_v1.h:VDDEE_VOLTAGE 1100 board/amlogic/configs/m8b_m201_v1.h:VDDEE_VOLTAGE 1100 board/amlogic/configs/m8b_m202_v1.h:VDDEE_VOLTAGE 1100 Another hint at this is the VDDEE voltage on the EC-100 and Odroid-C1 boards. The VDDEE regulator supplies the Mali GPU. It's basically a copy of the VCCK (CPU supply) which means it's limited to 0.86V to 1.14V. Update the operating voltage of the Mali GPU on Meson8b to 1.10V so it matches with what the vendor u-boot sets. Fixes: c3ea80b6138cae ("ARM: dts: meson8b: add the Mali-450 MP2 GPU") Signed-off-by: Martin Blumenstingl Signed-off-by: Kevin Hilman Signed-off-by: Sasha Levin --- arch/arm/boot/dts/meson8b.dtsi | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/arm/boot/dts/meson8b.dtsi b/arch/arm/boot/dts/meson8b.dtsi index fe84a8c3ce81..6b80aff32fc2 100644 --- a/arch/arm/boot/dts/meson8b.dtsi +++ b/arch/arm/boot/dts/meson8b.dtsi @@ -163,23 +163,23 @@ opp-255000000 { opp-hz = /bits/ 64 <255000000>; - opp-microvolt = <1150000>; + opp-microvolt = <1100000>; }; opp-364300000 { opp-hz = /bits/ 64 <364300000>; - opp-microvolt = <1150000>; + opp-microvolt = <1100000>; }; opp-425000000 { opp-hz = /bits/ 64 <425000000>; - opp-microvolt = <1150000>; + opp-microvolt = <1100000>; }; opp-510000000 { opp-hz = /bits/ 64 <510000000>; - opp-microvolt = <1150000>; + opp-microvolt = <1100000>; }; opp-637500000 { opp-hz = /bits/ 64 <637500000>; - opp-microvolt = <1150000>; + opp-microvolt = <1100000>; turbo-mode; }; }; -- 2.20.1