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(unknown [172.20.64.188]) by smtprelay.cixcomputing.com (Postfix) with ESMTPSA id EFE3B4115DE3; Tue, 30 Sep 2025 15:56:44 +0800 (CST) From: Jun Guo To: peter.chen@cixtech.com, fugang.duan@cixtech.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, broonie@kernel.org Cc: linux-spi@vger.kernel.org, michal.simek@amd.com, cix-kernel-upstream@cixtech.com, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Jun Guo Subject: [PATCH 1/3] dt-bindings: spi: spi-cadence: document optional fifo-width DT property Date: Tue, 30 Sep 2025 15:56:42 +0800 Message-Id: <20250930075644.1665970-2-jun.guo@cixtech.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250930075644.1665970-1-jun.guo@cixtech.com> References: <20250930075644.1665970-1-jun.guo@cixtech.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-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: TY2PEPF0000AB83:EE_|TYZPR06MB7216:EE_ X-MS-Office365-Filtering-Correlation-Id: 388d4ddd-39f9-4105-c89f-08ddfff6e73f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|1800799024|376014|36860700013; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?FNNiVMcJ+MrLvfGsAoUdS7akCRdFcHacoExUZirObg/Ib3SWPA2SZHYHSpgJ?= =?us-ascii?Q?2r/aDDpIQ4RLMcOOa4xO3QcmGvXwL9sQ0JOPsxs48zY/kQCg4HZrrxSV/IIF?= =?us-ascii?Q?9KQzQV81B1fnQL0JLUtiTXxZL+chj2xyt0tmO8SL7TlzqEcW/fdCKJWD6gFM?= =?us-ascii?Q?faCWdkFANly1Vt7E+1fYqQW1SJl0ueJp7TqL8H5GQTPYTkntpLs0PWS6q4y1?= =?us-ascii?Q?GMlTopecWw6wTcL0MepbYQ0VUrntfEP1GIojF4BLAxzMvUqsDSzCS4KOJ+bz?= =?us-ascii?Q?pM0QJAscmYC6u+kwNcxoIm+PxMLtieHsxGpGgMNzXpdDhSOMFWADgr8x3+BI?= =?us-ascii?Q?+65wtITzq3nMCCjt0x+pSgAOfwzQoYchCReUMD68QUMvpVMKyNvCwz/Fkicj?= =?us-ascii?Q?N3+akGpDPcO0pT97nYa80Xqvro30HgYpSh10riHNaNpyvfQeSIq/+Zz0thgg?= =?us-ascii?Q?A2TbD8ioW7BwL6H/aU0g3ZKk2rWRipFkGGlfKg5+yAlLwUrut7g0v9E+K6tZ?= =?us-ascii?Q?OwZnb+UMtH0NRWapaWhYLVFnK2XqkXKwSiLENmiqMSXjI74BOPBzj9epuBHI?= =?us-ascii?Q?Z8ArmYLrUPx4k+cv0IhiqxGzAQvDHXANvnNTrJ56jB5sNJCExxuYSuwXJ9ES?= =?us-ascii?Q?Msdqp13QO1PyG2bpDR9TG/9X4uZlT9a1Jitv5ZU/wICTB1tU7EtLt/gCDZZ8?= =?us-ascii?Q?hgcDJuP7Y39v2YRrvSgEsOMNH5ZfJBhhyxu+cYnZ7zbXDd9GFCZgsGiNbuzu?= =?us-ascii?Q?aUxFSsHtr7TJVmr97LnWhpXSUulSG9dRYuP0L/y/mLr6sD1E4hDib/sFltDD?= =?us-ascii?Q?3akbd/ReDsNCvodrTvFNsSizujbFE3r2ugpwhmQrbaY/zBw7Yx0cCSOiVuIp?= =?us-ascii?Q?b9XC6mlRLYJCy8LsrRMtBTeXEMPbswbCkwr3++hR6+IcAgNetcvFP8iPEmsx?= =?us-ascii?Q?moB71CUF4BSgB81Joaqf3HYhOMwdSN2EvVcPiS6ywu70JufT4vVgqjyHY3zA?= =?us-ascii?Q?KWHTS0PETsSgQa95kTGAGlg/1EJT3Um1Ff7Ej5GeKnd5b/D2aDobGlSmnAg8?= =?us-ascii?Q?aVN2dfsQGxuB62pkQo1H2nRmOhzihJ70qRdOk1d11kXd0hBWBBd9FUHv1gxW?= =?us-ascii?Q?9ef5RVS0GXabAZjw58tcM/buQ8Ybq/dii2Fyu7HEZbyBzev4wemxxLsKW5tF?= =?us-ascii?Q?V3+f79DuVdyK3SxFDz7I/YStSw6jq8vRZbyWo9v2GR+gb+kUvdfs/sdMykhr?= =?us-ascii?Q?X2jhxao5chuR1ltwGGT4zKHmu6mwhMvXNW+6vSWhlR3Gf1LShnFd/RZuYtlX?= =?us-ascii?Q?JrYTtesrw7fuxAErn/WLzzQ6r7TR+vtRRv2dEcZsbWIlzoZk7/I03YEpSQx5?= =?us-ascii?Q?N6YZPp7VbrG+8oOUk9K5MG8/itozaL+enMQvw0JQjJVjf/jK9d1fZfvr4Beh?= =?us-ascii?Q?PYEYFtPvv4xZXKGz16FZ89Ssiqyd2IBtrk3j4IQ3lyKTltbfBp6smj1zh8+G?= =?us-ascii?Q?rNLrHX8toFiVYC0gluEB81zPg8LSh4P0Q4sQtAP4SjgApVYnYSJ/EEKRW7SD?= =?us-ascii?Q?1OguwK4Sx0p5fzUkWOY=3D?= X-Forefront-Antispam-Report: CIP:222.71.101.198;CTRY:CN;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:smtprelay.cixcomputing.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(82310400026)(1800799024)(376014)(36860700013);DIR:OUT;SFP:1102; X-OriginatorOrg: cixtech.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Sep 2025 07:56:46.0937 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 388d4ddd-39f9-4105-c89f-08ddfff6e73f X-MS-Exchange-CrossTenant-Id: 0409f77a-e53d-4d23-943e-ccade7cb4811 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=0409f77a-e53d-4d23-943e-ccade7cb4811;Ip=[222.71.101.198];Helo=[smtprelay.cixcomputing.com] X-MS-Exchange-CrossTenant-AuthSource: TY2PEPF0000AB83.apcprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: TYZPR06MB7216 Content-Type: text/plain; charset="utf-8" Add documentation for the optional 'fifo-width' device tree property for the Cadence SPI controller. Signed-off-by: Jun Guo --- .../devicetree/bindings/spi/spi-cadence.yaml | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/Documentation/devicetree/bindings/spi/spi-cadence.yaml b/Docum= entation/devicetree/bindings/spi/spi-cadence.yaml index 8de96abe9da1..b2e3f217473b 100644 --- a/Documentation/devicetree/bindings/spi/spi-cadence.yaml +++ b/Documentation/devicetree/bindings/spi/spi-cadence.yaml @@ -62,6 +62,17 @@ properties: items: - const: spi =20 + fifo-width: + description: | + This property specifies the FIFO data width (in bits) of the hardwar= e. + It must be configured according to the actual FIFO width set during + the IP design. For instance, if the hardware FIFO is 32 bits wide, + this property should be set to 32. + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 8 + maximum: 32 + default: 8 + required: - compatible - reg --=20 2.34.1