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Sun, 17 Aug 2025 21:34:24 -0700 From: Akhil R To: , , , , , , , , CC: , , , , Thierry Reding Subject: [PATCH RESEND 2/2] i2c: tegra: Add Tegra256 support Date: Mon, 18 Aug 2025 10:03:45 +0530 Message-ID: <20250818043345.65899-3-akhilrajeev@nvidia.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250818043345.65899-1-akhilrajeev@nvidia.com> References: <20250818043345.65899-1-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: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN2PEPF000044AC:EE_|MW4PR12MB7357:EE_ X-MS-Office365-Filtering-Correlation-Id: d0305726-e67b-4f4c-e4fb-08ddde108d88 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|1800799024|7416014|376014|82310400026; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?oZ3m/v6h/lxyQeQysP5H7p1K/NAXsjV+I+c+3yERx6E07ZmtX7pJ7VF8RAAW?= =?us-ascii?Q?JXMt0/Vi5/rz+mbG6R5wEVlNT7hc3BwpLISHUPj4lZXY15yL0RDjbmLx3l8i?= =?us-ascii?Q?mKqddWU+SI1ag2cAOygetM67dL6epSLk2vekDtMyYfB0d7hixTc+6QpEG00J?= =?us-ascii?Q?74aKi71t75gFl83k3PtKLj76pG3Z3pL5K8w9xBsBhMn7+zvEC2pes+E6jFE5?= =?us-ascii?Q?9FMmLREDU1yhWIFxHNZslMprIjwRY9u9Wp+JRS+ZKDwKgS+AGx4D2aUGTwKk?= =?us-ascii?Q?fKMM3iARM32FzMi4M0mnrK+MJY/W1iGNn6s1m+bBwySfJPXoZh4u4ouNb03/?= =?us-ascii?Q?XymLOMYIzsV9teZWgkboamAntSshIWJih15aGJFeS6oeyvLMBekPZzgfF8HH?= =?us-ascii?Q?geo8eim/jQr6iZv+T9CfirMODT5+Zu5znlZesnsS+9J4yQljYTpwGx64stf4?= =?us-ascii?Q?1kmuKS35LT4I6McMCtYwt/UZAR3YmEp50oD+MZQqAQG+vFYJDDz3nIGJJTg+?= =?us-ascii?Q?VQZjhBIoijEjJDQwQkeRmvsklLLBkP48lZdECCx5nTgVYiWskzWKTbHBbu1K?= =?us-ascii?Q?nazsRLoeqAk6OOqVAZNVdUFxmjOaU2sWnoB465SQ6p8lEv8DyF/eXimdrAxi?= =?us-ascii?Q?TcDMIuj+XudQ9Gutvbv1m68XapZLVbNlo8pXHBOTau/Pv8/LHn3D4uXOCMVs?= =?us-ascii?Q?hxfXxuxxKGmYASupYQf/WgaGywou1th8WPz46dLHZCbeJWBPmlsa8kv/aWD9?= =?us-ascii?Q?DOp/kfL/tKXUBHgtO5A6UXjuaC4LO+uBZpPoT9hICK0nIQ11quMx7u7B20Mq?= =?us-ascii?Q?Bx90TLIFE5hKINWnMoGrK92kBk6lxyvRHUwHT3ZNgSeNYzTZgnmEHkU4Pm6v?= =?us-ascii?Q?827rIOQMDSK2bbF651Fe5eOGsAXUH7dnNbn0AjueBua+fxyNCkAZrWSMWltL?= =?us-ascii?Q?ExkLxW1f8CzD6pB/sx+Yx6e8zex9mYOauJO1dGN40vPhBZGDB6qPuEYGNgRz?= =?us-ascii?Q?R2RMvGCWAiQ7mzW+mbf0Wkw+ibzGKtRtFkJK4hZPZ94ihd8+z0PTIeB8p6PE?= =?us-ascii?Q?iwluwEfOM++7v//z911mIRo+RiHhTdxfTF07Y2693mZKTwtC1jk3YVbgFsbm?= =?us-ascii?Q?SdjjMzCPgsORby5eJDmIY8Hb0YzNuAgla+kBW0Z86nqPCPA069mHT5peXm4k?= =?us-ascii?Q?W1LAnUEz76zoQnG4GJqyoRRMvH0saH/vIpHbA6S58DmTEnSMxOg5pw+4ZE3+?= =?us-ascii?Q?RYSdzGihE74fz+CtiP7l2Kdue9rduiSMALtkjgOIPY7I9PR8Ki5SzWLn/9q/?= =?us-ascii?Q?UpiyB3YIEKuDTCk5Kv1HqYkjZvY6sV5Frv3dGLMl4JCPGqXZnNcAaCq/Nndr?= =?us-ascii?Q?QOKRRg+l+Sa/BqWzUU2ufHnZUSdQjtGQVelIKxgmdsbYDbYerhXg4hCdBL7n?= =?us-ascii?Q?4L8Ae6XR9muJvs0vYNXPxpkU9sEQPNLktPudXRROwK9dAks0VwvxSNxlGMA+?= =?us-ascii?Q?aySdq8Ugv2HAoiwvuw99he8PjMgoOQljCE/6?= 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)(36860700013)(1800799024)(7416014)(376014)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Aug 2025 04:34:42.9661 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: d0305726-e67b-4f4c-e4fb-08ddde108d88 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: BN2PEPF000044AC.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR12MB7357 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