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Thu, 31 Jul 2025 02:11:53 -0700 From: Akhil R To: , , , , , , , , , CC: , , Subject: [PATCH 2/2] i2c: tegra: Add Tegra256 support Date: Thu, 31 Jul 2025 14:41:22 +0530 Message-ID: <20250731091122.53921-3-akhilrajeev@nvidia.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250731091122.53921-1-akhilrajeev@nvidia.com> References: <20250731091122.53921-1-akhilrajeev@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NVConfidentiality: public Content-Transfer-Encoding: quoted-printable X-NV-OnPremToCloud: AnonymousSubmission X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ1PEPF000023D8:EE_|LV3PR12MB9185:EE_ X-MS-Office365-Filtering-Correlation-Id: 09d23f49-6081-4d7f-5f80-08ddd01254b7 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|36860700013|82310400026|1800799024|921020; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?xNSFO9+tZnB0Q+gC8wEvEnoOHhp/2HNIx7+sGe7yb+6DW95iVz8ATtHDeChn?= =?us-ascii?Q?MZX6qwjS4EXOpONioIMpOiOUZQG9+vVsdu+N8/cQHPMnkcoToO4t04A5lhJs?= =?us-ascii?Q?AvTG0Nbh0BJl/ETvn/jkvrxCiWCSdbxXUJmtX70aQMCG33Mi894kkGiYNvjR?= =?us-ascii?Q?FzNE9VX8i8cOxbp9KFVn4htQgZEjfc2/1TNfETauKSS1IdRgQBRyXncFDUlQ?= =?us-ascii?Q?hOmA7PnUeL5rsTUdEL01HryrB1XiFFHkFq20+VmZUbxHo7g66O2og6k2S8Ja?= =?us-ascii?Q?7pgaTnT+Jj8rVNyGDwA/Ff7M3qnX+ddTUc52+Cxx+gazx+FkTWCd88kwDsIy?= =?us-ascii?Q?trqayTM9B0YXlduK9w0TFUy85iKPuCM3YG652of1Qyxt3dKHIGypmU/Yvqzg?= =?us-ascii?Q?oDfEFkKILEhVbFVWP2im4I6Psjrwr+0zngmibCW45KS+JMd73BWSGwDCs/el?= =?us-ascii?Q?SQlJUE3IvJtGnImRHpZ3EzXZ1nllr8IvtVLHwe+p3XHZIZtKdgCJU3eC3k77?= =?us-ascii?Q?lbjnliBS7XHvBdRx4+R76wLVszDA+rLueD3uQZ+odz8Vfhkvm7hAyYnfdlaW?= =?us-ascii?Q?88nxrRqEX+B1O3eFoQ6cMrFfsIQ6STjZXDWcKJdpFAm2HfuNVH7EnGZTcKrq?= =?us-ascii?Q?d89Puw1b8BIuv6qkEE8htkPQr0zTQL/MMZSzH9G3ZWLmZu/FgZKza1kNcuD2?= =?us-ascii?Q?pOdmYx1UElTEJrXIR28v0ZAR5dxBqXfgJbC/AnLstw0I+vAFblM4QUdKZVwW?= =?us-ascii?Q?hjOn+7MZyBynL62AtwBv8eKpbFsZDWgAZkwQZCCCcqB7bS8I5eNjixaGDXSo?= =?us-ascii?Q?Q8b5ZYsTaQUo3L3vXP/2M0Uu9TTSdgVIoaPO4OBSWJdCE+XyuICiCjXUfG21?= =?us-ascii?Q?qAnlHrTU4xqq2pM4tZHWSWmTAAwZ1X1se1EHxILir9YEm2H3Oe8qsfGgCFaN?= =?us-ascii?Q?lnqAjXW9WStfaLf6WLL2Vvv8bHpDUPLLiCTmeazewwBT0lzfoHuNP8VlyS//?= =?us-ascii?Q?BaBKT13/QVEpRMf2EBex+MFR65C2qxYcZqnWZlx0kVGADlTg+zrLXHp6sI3k?= =?us-ascii?Q?bA7EPQ5wBhWaQ5gRISjcIv05xNaojUzM+Cw6M7cqwEhF3WkjUZmTwXrqd3Fy?= =?us-ascii?Q?HyFb2BK4LM0O1dnWcEusWtgp5MLOmB38NCezyWTf0zMZlFqFrQajHynXcp2Z?= =?us-ascii?Q?4RXs/rul+rcE9rq5y8PCnYNAeo5HM8/oCvijls7Y7XI/JRv/5ZSQvzmEvDrE?= =?us-ascii?Q?jiwZCPCLUNSoBqCrMJzMlKpZGfGrpam6VY3ddFI5x6PoMKjWf1EOgO8AuaDr?= =?us-ascii?Q?PYgSaQLhhKXF2V/tVFOXE1tDQxT4hwvobWlIV9NBWkvRdTcO3En0zwwxW3ho?= =?us-ascii?Q?gourNVxRwJ4W0VAlqrfwGScFcL9NQOCCGRxGqcm2U6587v0TsQfilmPe53Wi?= =?us-ascii?Q?nwozk7RSuHB250TkVhTGW7lvH81a84KHN1gGFezb1C9machTJ/IOdfuc5FiN?= =?us-ascii?Q?eqSDvlH0Axcg1ej+7od5wyULpHRuMpCCOhONq1fyoJc0YsiK+Gb0xwGg0A?= =?us-ascii?Q?=3D=3D?= X-Forefront-Antispam-Report: CIP:216.228.118.232;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge1.nvidia.com;CAT:NONE;SFS:(13230040)(376014)(7416014)(36860700013)(82310400026)(1800799024)(921020);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 31 Jul 2025 09:12:10.5547 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 09d23f49-6081-4d7f-5f80-08ddd01254b7 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.232];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SJ1PEPF000023D8.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV3PR12MB9185 Content-Type: text/plain; charset="utf-8" Add compatible and the hardware struct for Tegra256. Tegra256 controllers use a different parent clock. Hence the timing parameters are different from the previous generations to meet the expected frequencies. Signed-off-by: Akhil R Acked-by: Thierry Reding --- drivers/i2c/busses/i2c-tegra.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 4eb31b913c1a..e533460bccc3 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -1649,7 +1649,33 @@ static const struct tegra_i2c_hw_feature tegra194_i2= c_hw =3D { .has_interface_timing_reg =3D true, }; =20 +static const struct tegra_i2c_hw_feature tegra256_i2c_hw =3D { + .has_continue_xfer_support =3D true, + .has_per_pkt_xfer_complete_irq =3D true, + .clk_divisor_hs_mode =3D 7, + .clk_divisor_std_mode =3D 0x7a, + .clk_divisor_fast_mode =3D 0x40, + .clk_divisor_fast_plus_mode =3D 0x19, + .has_config_load_reg =3D true, + .has_multi_master_mode =3D true, + .has_slcg_override_reg =3D true, + .has_mst_fifo =3D true, + .has_mst_reset =3D true, + .quirks =3D &tegra194_i2c_quirks, + .supports_bus_clear =3D true, + .has_apb_dma =3D false, + .tlow_std_mode =3D 0x8, + .thigh_std_mode =3D 0x7, + .tlow_fast_fastplus_mode =3D 0x3, + .thigh_fast_fastplus_mode =3D 0x3, + .setup_hold_time_std_mode =3D 0x08080808, + .setup_hold_time_fast_fast_plus_mode =3D 0x02020202, + .setup_hold_time_hs_mode =3D 0x090909, + .has_interface_timing_reg =3D true, +}; + static const struct of_device_id tegra_i2c_of_match[] =3D { + { .compatible =3D "nvidia,tegra256-i2c", .data =3D &tegra256_i2c_hw, }, { .compatible =3D "nvidia,tegra194-i2c", .data =3D &tegra194_i2c_hw, }, { .compatible =3D "nvidia,tegra186-i2c", .data =3D &tegra186_i2c_hw, }, #if IS_ENABLED(CONFIG_ARCH_TEGRA_210_SOC) --=20 2.50.1