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Thu, 1 Oct 2020 07:46:45 +0000 Subject: Re: [PATCH 00/11] i.MX8MM power domain support To: Lucas Stach , Shawn Guo , Rob Herring Cc: NXP Linux Team , Fabio Estevam , Marek Vasut , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, kernel@pengutronix.de, patchwork-lst@pengutronix.de References: <20200930155006.535712-1-l.stach@pengutronix.de> From: Frieder Schrempf Message-ID: <1461917a-5b8a-3487-bcb1-b4380df34852@kontron.de> Date: Thu, 1 Oct 2020 09:46:43 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 In-Reply-To: <20200930155006.535712-1-l.stach@pengutronix.de> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [89.247.42.197] X-ClientProxiedBy: AM6PR10CA0059.EURPRD10.PROD.OUTLOOK.COM (2603:10a6:209:80::36) To AM0PR10MB2963.EURPRD10.PROD.OUTLOOK.COM (2603:10a6:208:157::14) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from [192.168.10.17] (89.247.42.197) by AM6PR10CA0059.EURPRD10.PROD.OUTLOOK.COM (2603:10a6:209:80::36) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3433.32 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: kontron.de X-MS-Exchange-CrossTenant-Network-Message-Id: f1a78dce-778e-4eff-4bf7-08d865de2542 X-MS-Exchange-CrossTenant-AuthSource: AM0PR10MB2963.EURPRD10.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Oct 2020 07:46:45.6991 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 8c9d3c97-3fd9-41c8-a2b1-646f3942daf1 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: uroIUuNZgPtKwIfIxIvVQuNbLfiQhpyE1aYhSEtKBqw0Es3P8pYCZSswyeXCOlyY4VoJQnVETPrcMVMoBxTq8y8RSHELTxe9w5tBCINRPCU= X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR10MB2722 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On 30.09.20 17:49, Lucas Stach wrote: > Hi all, > > this adds power domain support for the i.MX8MM to the existing GPCv2 > driver. It is not complete yet, as it is still missing the VPU and > display power domains, as those require support for the BLK_CTL > regions of the VPUMIX and DISPLAYMIX domains. A Linux driver for > those regions on the i.MX8MP is currently under development and we > plan to use this as a template for the i.MX8MM when the dust has > settled. The changes in this series have been made with this in > mind, so once the BLK_CTL driver exists it should be a matter of > hooking things together via DT, with no further changes required on > the GPCv2 driver side (famous last words). > > Special thanks to Marek Vasut who helped with testing and debugging > of early versions of this code. I tested this on our i.MX8MM boards by making sure the GPUs and USBs come up properly. It works just fine on v5.9-rc6 and also backported to 5.4. So for the whole series: Tested-by: Frieder Schrempf > > Regards, > Lucas > > Lucas Stach (11): > soc: imx: gpcv2: move to more ideomatic error handling in probe > soc: imx: gpcv2: move domain mapping to domain driver probe > soc: imx: gpcv2: split power up and power down sequence control > soc: imx: gpcv2: wait for ADB400 handshake > soc: imx: gpcv2: add runtime PM support for power-domains > soc: imx: gpcv2: allow domains without power-sequence control > soc: imx: gpcv2: add support for optional resets > dt-bindings: add defines for i.MX8MM power domains > soc: imx: gpcv2: add support for i.MX8MM power domains > arm64: dts: imx8mm: add GPC node and power domains > arm64: dts: imx8mm: put USB controllers into power-domains > > .../bindings/power/fsl,imx-gpcv2.yaml | 8 + > arch/arm64/boot/dts/freescale/imx8mm.dtsi | 59 +++ > drivers/soc/imx/gpcv2.c | 501 +++++++++++++++--- > include/dt-bindings/power/imx8mm-power.h | 22 + > 4 files changed, 516 insertions(+), 74 deletions(-) > create mode 100644 include/dt-bindings/power/imx8mm-power.h >