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Tue, 13 Jan 2026 08:59:48 -0800 From: Kartik Rajput To: , , , , , , , , , CC: Kartik Rajput Subject: [PATCH v7 4/4] i2c: tegra: Add support for Tegra410 Date: Tue, 13 Jan 2026 22:29:29 +0530 Message-ID: <20260113165929.43888-5-kkartik@nvidia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260113165929.43888-1-kkartik@nvidia.com> References: <20260113165929.43888-1-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: MWH0EPF000971E3:EE_|BN7PPF7C0ACC722:EE_ X-MS-Office365-Filtering-Correlation-Id: 6dff17d7-f97c-4e72-2534-08de52c53a27 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|376014|36860700013|1800799024|921020; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?ts+cl835blwnQZA3AvaLeD5cMhZLFM4bH7FXKM/3We5R+/3KRTQzET/l0iNS?= =?us-ascii?Q?win8Bq2S4wKo4aKp2xKJpCFNmcNHAw3mF5w/a8Dqdi5XGU3zif9/Csg59dIc?= =?us-ascii?Q?XqixHdgfK6hEY6bOSMY1pHpSHpYpsV37UOqLPkkETSfjyQJLPIeqbVqQ14PS?= =?us-ascii?Q?N6U9FECHLIuTlsonxh7MMCtEDBFu1t9N2QSm0iiQWanSl74BgMWo8wwjZuq3?= =?us-ascii?Q?fJr+rg9gLa1yOa6cl7+G+b6PqPqY7nFZYlYEvjo5SyPI+l7/K3+wrPMwRMLW?= =?us-ascii?Q?Cp7DGIe9/xzAmwoxmyCzXj2tP15hxFcettjg8JMT3Ugac/hClHXZkzbb/k6y?= =?us-ascii?Q?dwBzsA3h3s9DYU99G6yRVNo50uwjJ9+99bdUBGUKjdie9KyQM8snYvOjG4qp?= =?us-ascii?Q?tpTImAwOBHiHjiZ26Xyin7m95HsAWVxgFUrgluD2ySwknFo9n/7mpIEYugnS?= =?us-ascii?Q?cqCqloCwplZjleR+nlht1AOldwg9id2CC1kxs4lW9GeNjSoNbWPHNNlcnt0N?= =?us-ascii?Q?iog4Dfv5+Wtt7M20zks5ukg8JMdWmk+pW3AQVD8d+UsK/bDbWr5qfPD2gjpp?= =?us-ascii?Q?BgBJr/iDP/2xcU4x363UScIHuXhuFcQh0M0/qbuXJkHxOfh3zNK+bQSo4YmX?= =?us-ascii?Q?/y26E8xG/TiKxVx68QS9w68UqmGpsZ3JQujkaq3jZp/cqldQf/xJceZrC8De?= =?us-ascii?Q?Q1rBm8GCNQBpWcM53IhlZDi4TP3BMnJl2pirh8ZBKUBCeJc0xIV7PwiXhzo1?= =?us-ascii?Q?E40lyQhL+R70gSR9V+ePJP5GtZGdUgMCavKuMbsB0L2yDnqaOhccO+D0HWs0?= =?us-ascii?Q?vBuTz2Vf7rruFLdUkKnWrss3Xd3qtZ+w1kB210LjtMWqgxKa/TrdDbb7nY7p?= =?us-ascii?Q?SxkW6bQBTfMcWmk7CkqPRDvX9HgPuNb3E1xrvNQxGiCbgvo33rYeJKXq74g0?= =?us-ascii?Q?NUi+ozIvmvCGLdiVQ43eMHY2TZQZsr123EfpnrhEtPL72nZKEGIhpasNcbgc?= =?us-ascii?Q?T6i9Oh0lNtLwoFsU1OXTyDx/b8ora5eJesKSBkEvgaJsnK5+EN/LerbfKoMm?= =?us-ascii?Q?TAXl/80z+Y+qAVfeWefC9bpEIee/BsBJzZVjvEx6RmfUceHccpeZn94TsC0w?= =?us-ascii?Q?bX9bg1Y9gggSRB6Ch4UIaUBzH5roQmr96EtjwGPOQTi3F9e2B6OlB5iXaF1q?= =?us-ascii?Q?1G+cB5FR8w713/T0Vwgj3LNZyQStPmEawlpSVG+N9RYJZ0fciIt0KptcY2S5?= =?us-ascii?Q?Ze/jLPpI001pqzuIKit1YxSg8srgwprzNalI/3aZJHm3hcxEBTho+G0U2b8i?= =?us-ascii?Q?Xs5TA63nFdXtcUrXFc/xwXmYbb3vndZHKX4wuT7RzM8Or+gc+SXaj9Sj58ZE?= =?us-ascii?Q?3zDxbcRdrpjZf3fInaFEE4KG9dKCniGy+Du5ZQIolbeBtSzdLciWU/ClpaxF?= =?us-ascii?Q?HS3tII9L3zoe8RaFAoc2iub7j5ZrURnQtdtfJl43zmYlBfbRPUzw72/V4x6K?= =?us-ascii?Q?a+XzylmeSyTSrHeFqtugfYhaxdrePfooq/zxmiu5IiEb3mZ/5ucaE18EtoZ5?= =?us-ascii?Q?GD9W/yfr3m0dSe76w9Au/MyrPTBKsbrlCaHJpTHG?= 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:(13230040)(82310400026)(376014)(36860700013)(1800799024)(921020);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Jan 2026 17:00:16.9429 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 6dff17d7-f97c-4e72-2534-08de52c53a27 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: MWH0EPF000971E3.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN7PPF7C0ACC722 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 | 63 ++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index e9d0a5c40cd3..0b75e396e69b 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -275,6 +275,34 @@ 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, + .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. @@ -2082,6 +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 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, }, @@ -2392,6 +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