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Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.11.0 Subject: Re: [Patch v3 0/2] Improvements to the Tegra CPUFREQ driver Content-Language: en-US To: , , , , CC: , , , , Sumit Gupta References: <20231004140537.1954-1-sumitg@nvidia.com> From: Sumit Gupta In-Reply-To: <20231004140537.1954-1-sumitg@nvidia.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.126.231.35] X-ClientProxiedBy: rnnvmail202.nvidia.com (10.129.68.7) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS3PEPF000099D5:EE_|CH2PR12MB4938:EE_ X-MS-Office365-Filtering-Correlation-Id: d3fb7de4-1549-450c-3aa3-08dbc8bc0fd7 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230031)(4636009)(136003)(376002)(346002)(39860400002)(396003)(230922051799003)(64100799003)(1800799009)(186009)(451199024)(82310400011)(46966006)(40470700004)(36840700001)(31686004)(2616005)(26005)(336012)(16526019)(426003)(53546011)(40460700003)(36756003)(82740400003)(31696002)(86362001)(40480700001)(356005)(7636003)(83380400001)(107886003)(4326008)(2906002)(478600001)(6666004)(8676002)(36860700001)(47076005)(966005)(8936002)(316002)(16576012)(5660300002)(41300700001)(70586007)(54906003)(110136005)(70206006)(43740500002);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Oct 2023 11:37:04.6664 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: d3fb7de4-1549-450c-3aa3-08dbc8bc0fd7 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DS3PEPF000099D5.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH2PR12MB4938 Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org On 04/10/23 19:35, Sumit Gupta wrote: > This patch set adds below improvements to the Tegra194 CPUFREQ driver. > They are applicable to all the Tegra SoC's supported by the driver. > > 1) Patch 1: Avoid making SMP call on every frequency request to reduce > the time for frequency set and get calls. > > 2) Patch 2: Use reference clock count based loop instead of udelay() > to improve the accuracy of re-generated CPU frequency. > > The patches are not related but have minor conflict. So, need to be > applied in order of patch numbers. If 'Patch 2' is to be applied first > then will rebase that and send separately. > > --- > v1[2] -> v3: > - Patch 1: used sizeof(*data->cpu_data) in devm_kcalloc(). > > v1[1] -> v2: > - Patch 1: added new patch. > - Patch 2: changed subject and patch order. > > Sumit Gupta (2): > cpufreq: tegra194: save CPU data to avoid repeated SMP calls > cpufreq: tegra194: use refclk delta based loop instead of udelay > > drivers/cpufreq/tegra194-cpufreq.c | 151 ++++++++++++++++++++--------- > 1 file changed, 106 insertions(+), 45 deletions(-) > > [2] https://lore.kernel.org/lkml/20230901164113.29139-1-sumitg@nvidia.com/ > [1] https://lore.kernel.org/lkml/20230901152046.25662-1-sumitg@nvidia.com/ > Hi Viresh, If there is no further comment. Can we please still apply these patches for 6.7 ? Best Regards, Sumit Gupta