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Tue, 6 Jan 2026 20:24:52 -0800 From: Kartik Rajput To: , , , , , , , , , CC: Kartik Rajput Subject: [PATCH v4 4/4] i2c: tegra: Add support for Tegra410 Date: Wed, 7 Jan 2026 09:54:34 +0530 Message-ID: <20260107042434.10587-5-kkartik@nvidia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260107042434.10587-1-kkartik@nvidia.com> References: <20260107042434.10587-1-kkartik@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN3PEPF0000B06C:EE_|DM4PR12MB7695:EE_ X-MS-Office365-Filtering-Correlation-Id: 27925976-abb3-4a2f-d3d5-08de4da4bd16 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|82310400026|376014|1800799024|921020; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?TaGZvVEfcMrzPCpAUtolXoj4POBxsgeWebZ1EVhmkyVtYmSysDbu/LkwGcz2?= =?us-ascii?Q?M5sRlChYgFPRI0fOzadkA7C9TEKkRKa/lYeOffHeaqEvcRPq+J2UEcu4jUh0?= =?us-ascii?Q?e2Z3ZOBEoomNTwWSleHzM3c5dHHKlDutsaDL4vZBiYiEoYhYjoIW6hNKCOmY?= =?us-ascii?Q?/FxXWZz8HsDU8uFMxIfTrPY9WgJgFCByTDwTGMpIMAUGBKOMzDBcF5ZESWdi?= =?us-ascii?Q?2pzkPHCLwubhIKG2ofCaOqPq61BNioiVZurG5HjG157n6n+pQpgkfSsErVKg?= =?us-ascii?Q?YFXtaHwDRQTHQA+2XrkwnfralaMJNg2y5l73IW4keBKbGTEdVHSSHRZSD1KB?= =?us-ascii?Q?SebY4fGIo42nTK4S03bSs81wtVr6DteDkVyQYYgY1yLpM2vSKtpAnFGCVnJe?= =?us-ascii?Q?w8k6BUvE0kfxEqIsiqtabMCEFSJ29KbUe5yVP5cLSrmizzFUzh2pE0S1rdeS?= =?us-ascii?Q?pvc6XgzY4B84ODJFT6qAYY1KDTtaNJaXlX4nHUuGbYCx9JHuM23nQjSNHxt1?= =?us-ascii?Q?UMUXWtauvE1UGpI7WLjGdqFYj0FP98tnCPD0cDNKRZ5E/gc0jkUnY+8ahlWi?= =?us-ascii?Q?goyJ3sPN1F3DfnJdLArNJRD4lw594+xc6A/AF+A0A2xdr+QpPWdHwmcMiIZt?= =?us-ascii?Q?DmBQ1qlOnyzl996fG58VvUDgUwxp99VEvQu30zszKHD6GRYo1WkL3iqVyOaB?= =?us-ascii?Q?yZUj7BZdWDY4hKhoUC5HdTFYOaqz9O2WFGQSiBEPIvHLW5wFdkjklh+sqr0J?= =?us-ascii?Q?YtI973WG7/c9iwyx5h4Bksf2pzhbGj7JSyYNvBGi7FAHXoWw6GX6Md1KSlDL?= =?us-ascii?Q?6FHV03i6zdLLylss+ie+bYdW2O0NRESqsDcwdYFB5/Po5ekyHXqHJCN1QESd?= =?us-ascii?Q?cJIsvN6er6bVF92jDfqIQ7NqKW5YAhumQeBnHMH6K69F0YbRdPMtybwYHZsE?= =?us-ascii?Q?/49n+6ojIomawgs/A3eC46z/8e6ReW7fLNrvDqyvzL5PMDK6ALw8pDwWzGL8?= =?us-ascii?Q?oRfXHu6BNOYN0vt5cgATmcl3mlQh2B563BkVdbiaB08BvG0ngDeuhPFk7OIR?= =?us-ascii?Q?FdOqR6p4sa8h8cO6fVbwGraWlkBJB6uOlaE0GxA7LFClNiPP6q7YsxpXHwjW?= =?us-ascii?Q?JQ/RdKZ//+nktNRFz2wc7wr9xBMQPD9TdFAFRZH9KmwiUpqlk/Nh9/k/rUOD?= =?us-ascii?Q?1oJi1mumF18UUJ54aL2A5PbozOvGSfII1Scc1/auZhrPyyC1gp6X8KyUbZVw?= =?us-ascii?Q?OzIO2vVJMu07x80zkxtJmmKxcO1i7eoQLz8xevqgufm68eN+uguQfkz7b7Io?= =?us-ascii?Q?tGb+5tMiJeMo37O4eppbtFOlCfoUlIXBtVMGrb7oMJUbBvWKy6l5lsUJV/tr?= =?us-ascii?Q?2NUu5TheSb3gZkGb09Uep2JGJLQZ60QO0Bd3mH4z+ys4tfz+GCCuBTHut/lP?= =?us-ascii?Q?z1t05NJ8qCUx2bWk7DynVpvsDf6wQ+YYV69usc6nBl9QFUgC1gzvTOdgyZv2?= =?us-ascii?Q?NCYWvQGSpG/cryDvh6yCpMRCdYd4Ofe+uZSQOb96PeFDzdeV29BKg40DZdYD?= =?us-ascii?Q?nAd7aRYKaTp42XXUvBMUFyhcfigWyn9CH+HfwC1a?= 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)(36860700013)(82310400026)(376014)(1800799024)(921020);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Jan 2026 04:25:07.3870 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 27925976-abb3-4a2f-d3d5-08de4da4bd16 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: BN3PEPF0000B06C.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR12MB7695 Content-Type: text/plain; charset="utf-8" Add support for the Tegra410 SoC, which has 4 I2C controllers. The controllers are feature-equivalent to Tegra264; only the register offsets differ. Signed-off-by: Kartik Rajput --- Changes in v3: * Updated timing parameters for Tegra410. --- drivers/i2c/busses/i2c-tegra.c | 64 ++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 821e7627e56e..1056b07a28d3 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -280,6 +280,35 @@ static const struct tegra_i2c_regs tegra264_i2c_regs = =3D { .sw_mutex =3D 0x0ec, }; =20 +static const struct tegra_i2c_regs tegra410_i2c_regs =3D { + .cnfg =3D 0x000, + .status =3D 0x01c, + .sl_cnfg =3D 0x020, + .sl_addr1 =3D 0x02c, + .sl_addr2 =3D 0x030, + .tlow_sext =3D 0x034, + .tx_fifo =3D 0x054, + .rx_fifo =3D 0x058, + .packet_transfer_status =3D 0x05c, + .fifo_control =3D 0x060, + .fifo_status =3D 0x064, + .int_mask =3D 0x068, + .int_status =3D 0x06c, + .clk_divisor =3D 0x070, + .bus_clear_cnfg =3D 0x088, + .bus_clear_status =3D 0x08c, + .config_load =3D 0x090, + .clken_override =3D 0x094, + .interface_timing_0 =3D 0x098, + .interface_timing_1 =3D 0x09c, + .hs_interface_timing_0 =3D 0x0a0, + .hs_interface_timing_1 =3D 0x0a4, + .master_reset_cntrl =3D 0x0ac, + .mst_fifo_control =3D 0x0b8, + .mst_fifo_status =3D 0x0bc, + .sw_mutex =3D 0x0f0, +}; + /* * msg_end_type: The bus control which needs to be sent at end of transfer. * @MSG_END_STOP: Send stop pulse. @@ -2081,6 +2110,40 @@ static const struct tegra_i2c_hw_feature tegra264_i2= c_hw =3D { .regs =3D &tegra264_i2c_regs, }; =20 +static const struct tegra_i2c_hw_feature tegra410_i2c_hw =3D { + .has_continue_xfer_support =3D true, + .has_per_pkt_xfer_complete_irq =3D true, + .clk_divisor_hs_mode =3D 1, + .clk_divisor_std_mode =3D 0x3f, + .clk_divisor_fast_mode =3D 0x2c, + .clk_divisor_fast_plus_mode =3D 0x11, + .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_mode =3D 0x2, + .thigh_fast_mode =3D 0x2, + .tlow_fastplus_mode =3D 0x2, + .thigh_fastplus_mode =3D 0x2, + .tlow_hs_mode =3D 0x4, + .thigh_hs_mode =3D 0x2, + .setup_hold_time_std_mode =3D 0x08080808, + .setup_hold_time_fast_mode =3D 0x02020202, + .setup_hold_time_fastplus_mode =3D 0x02020202, + .setup_hold_time_hs_mode =3D 0x090909, + .has_interface_timing_reg =3D true, + .enable_hs_mode_support =3D true, + .has_mutex =3D true, + .variant =3D TEGRA_I2C_VARIANT_DEFAULT, + .regs =3D &tegra410_i2c_regs, +}; + static const struct of_device_id tegra_i2c_of_match[] =3D { { .compatible =3D "nvidia,tegra264-i2c", .data =3D &tegra264_i2c_hw, }, { .compatible =3D "nvidia,tegra256-i2c", .data =3D &tegra256_i2c_hw, }, @@ -2391,6 +2454,7 @@ static const struct acpi_device_id tegra_i2c_acpi_mat= ch[] =3D { {.id =3D "NVDA0101", .driver_data =3D (kernel_ulong_t)&tegra210_i2c_hw}, {.id =3D "NVDA0201", .driver_data =3D (kernel_ulong_t)&tegra186_i2c_hw}, {.id =3D "NVDA0301", .driver_data =3D (kernel_ulong_t)&tegra194_i2c_hw}, + {.id =3D "NVDA2017", .driver_data =3D (kernel_ulong_t)&tegra410_i2c_hw}, { } }; MODULE_DEVICE_TABLE(acpi, tegra_i2c_acpi_match); --=20 2.43.0