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Tue, 6 Jan 2026 03:10:50 -0800 From: Kartik Rajput To: , , , , , , , , , CC: Kartik Rajput Subject: [PATCH v3 4/4] i2c: tegra: Add support for Tegra410 Date: Tue, 6 Jan 2026 16:40:33 +0530 Message-ID: <20260106111033.5556-5-kkartik@nvidia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260106111033.5556-1-kkartik@nvidia.com> References: <20260106111033.5556-1-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: BL6PEPF0001AB73:EE_|CH8PR12MB9791:EE_ X-MS-Office365-Filtering-Correlation-Id: 95368bd2-834f-4d7f-16e4-08de4d144c51 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|1800799024|36860700013|82310400026|921020; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?h0Y5Lxx7fzdb+NpTP0VwtCHG/4AjFEkqWp2KLYvP71ARGr21FhutNgsXK4+y?= =?us-ascii?Q?Cs22gNiG8sr9YnPxuqPUkX02NAvgAZPZcuQDyweMutojNFAguxBPDq0J7aBA?= =?us-ascii?Q?3yVA82Yom0cQCQGwMhbNYWqNpAZdnKXKGdJIGxyVjmG98TSoDHjpmbxfItPR?= =?us-ascii?Q?+k5d5ZvxVtSg4234oPX5oyKf9bMHMgkLf2yrcPmeLeCEZK+ZknEEokY60jmf?= =?us-ascii?Q?GJrZ5GrpvcHazI73yVPVRHNh2p+rb7qtKOAbysLxoE0GWNzJxfEfV2E8jbcL?= =?us-ascii?Q?ynJ1cQpdAMPdF2CgpbGHm+MetyeeM4zl7uilSWPvrwE3SIJ95kc0I6MNzwu4?= =?us-ascii?Q?mEfQdPCC2BssxvnGq7EOPVdbZQOQwxbp688YwcHVQsFjXrHeq182QcZylT07?= =?us-ascii?Q?Fwn5RE1PQRvgePwKwHG9nL2ZaUeYoySJHezx9Vrc+/sTF3lw60E2w0AHR+jV?= =?us-ascii?Q?8515l3aEdrhFaHOOuMv23VBJtUT8RTDi9Vx5PINXfycd8TDSK9hG9w5smD5I?= =?us-ascii?Q?Xh0sNHDeVBUeImXABp9Mn0B2UTR5DE0+AmdmGQ/tEtNxm9wfTZT1yrbsPtxk?= =?us-ascii?Q?Y7NR8EnXiOuTRkq97JgAQHckWOJHnzUAMcPAdJxEq257j4BfXJF8azzNQJJm?= =?us-ascii?Q?dMmgiJSKbt9feCbSsd4sOuUE7pEukStkyKtLXFCVTP0atYcjnrP2bS0MmcAk?= =?us-ascii?Q?MGXc2DHLNP4pL2WbwYTwMg8V7GmuybA96RXZv4MXb4fP7P8zfOhXFS08OKRX?= =?us-ascii?Q?FtLdxU/l0gX7HjDwFiH9mddtHK47YE3w5qGRb6En2J/xFjk9VOX/mdaq09+Y?= =?us-ascii?Q?aXwgyUgmCOWirmzhRKpR6/njVpitmlBFbfppk+1GrVYAmHLb5YYIvJkqmPtH?= =?us-ascii?Q?7lvEdU+BFwNEqkoxT9SrKAH1Te4nwHkrvsquOi34EFNheGsUf5BzxoFtswTR?= =?us-ascii?Q?/zY0yvPYSxrOFk7wrtNaytgjWA5TS7ySn+lJSBluKD/fnpBjdMgzQGvL0ZCM?= =?us-ascii?Q?dXRV0wIw+egNp05+0KLdjjs/Tfnpe+r0XDNK7PB5yRvtkrp4DKKrx/AugWIh?= =?us-ascii?Q?xhTniBO/UmOQDmkl+21KhA8muCk7rC51ARSVz0IYglYPU7ycb1Ti9Q0PuzPK?= =?us-ascii?Q?m7nAETzL86GILOEh0rhO0oy8CNfinUfZOXMYS73xbUHux0a5sQzdJ3a3H9YM?= =?us-ascii?Q?z5sg8dtU1NDuF3qDgw7mEXlM8RsPc+/enjexDzLv5hZZekLuyHibsBTxvmT2?= =?us-ascii?Q?rbX60b9jqxUzPul+0u+y6ziLN0LHYOHOWM8VnmfaQ9XkxHaO5LOxzH7b36sF?= =?us-ascii?Q?7zpmTkXMmstMIHfcwQblnZouy9OTQxH3GzE0TKOMgs85IzhXBZJB23d/+KS7?= =?us-ascii?Q?hrb3vFktli/KVIt/dpbZ1AZ+g4fGUPl3FaGMcuGfuImb2yxc1HvF2pzr3bJm?= =?us-ascii?Q?q74zijZlL4MzjI7aqF+3TpR/oTxjG1rDkS5GIXo81tfDk+YFgl2cCY9ekEwA?= =?us-ascii?Q?oxfeiLupc2Gc3t5yChUJe1oB7akaBtv5D2S0SeGWHn2dAyxF003MEPVOBtMR?= =?us-ascii?Q?soQsSjR90u0Dq1584K/lazacEnga7toqc2qsCBLP?= X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230040)(376014)(1800799024)(36860700013)(82310400026)(921020);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Jan 2026 11:11:10.6972 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 95368bd2-834f-4d7f-16e4-08de4d144c51 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BL6PEPF0001AB73.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH8PR12MB9791 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 f92d8937ffc8..04f96baf2b56 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. @@ -2079,6 +2108,40 @@ 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 0x8, + .thigh_hs_mode =3D 0x6, + .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 0x0b0b0b, + .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, }, @@ -2389,6 +2452,7 @@ 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