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Tue, 14 May 2024 19:54:36 +0000 (GMT) From: Eddie James To: linux-fsi@lists.ozlabs.org Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, eajames@linux.ibm.com, krzk+dt@kernel.org, conor+dt@kernel.org, robh@kernel.org, joel@jms.id.au, andrew@codeconstruct.com.au Subject: [PATCH v5 1/9] dt-bindings: fsi: fsi2spi: Document SPI controller child nodes Date: Tue, 14 May 2024 14:54:27 -0500 Message-Id: <20240514195435.155372-2-eajames@linux.ibm.com> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20240514195435.155372-1-eajames@linux.ibm.com> References: <20240514195435.155372-1-eajames@linux.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: wZxgio04f5c3UvioQmcuXH03WLsseRkb X-Proofpoint-GUID: wZxgio04f5c3UvioQmcuXH03WLsseRkb Content-Transfer-Encoding: 8bit X-Proofpoint-UnRewURL: 0 URL was un-rewritten Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.650,FMLib:17.11.176.26 definitions=2024-05-14_12,2024-05-14_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 suspectscore=0 spamscore=0 lowpriorityscore=0 bulkscore=0 clxscore=1015 priorityscore=1501 mlxscore=0 mlxlogscore=999 malwarescore=0 adultscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2405010000 definitions=main-2405140142 The FSI2SPI bridge has several SPI controllers behind it, which should be documented. Also, therefore the node needs to specify address and size cells. Signed-off-by: Eddie James Reviewed-by: Krzysztof Kozlowski --- Depends on https://lore.kernel.org/all/20240514192630.152747-1-eajames@linux.ibm.com/ .../devicetree/bindings/fsi/ibm,fsi2spi.yaml | 36 ++++++++++++++++--- 1 file changed, 32 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/fsi/ibm,fsi2spi.yaml b/Documentation/devicetree/bindings/fsi/ibm,fsi2spi.yaml index e2ca0b0004714..ad5c83f484255 100644 --- a/Documentation/devicetree/bindings/fsi/ibm,fsi2spi.yaml +++ b/Documentation/devicetree/bindings/fsi/ibm,fsi2spi.yaml @@ -9,11 +9,10 @@ title: IBM FSI-attached SPI controllers maintainers: - Eddie James -description: | +description: This binding describes an FSI CFAM engine called the FSI2SPI. Therefore this - node will always be a child of an FSI CFAM node; see fsi.txt for details on - FSI slave and CFAM nodes. This FSI2SPI engine provides access to a number of - SPI controllers. + node will always be a child of an FSI CFAM node. This FSI2SPI engine provides + access to a number of SPI controllers. properties: compatible: @@ -24,6 +23,17 @@ properties: items: - description: FSI slave address + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + +patternProperties: + "^spi@[0-9a-f]+$": + type: object + $ref: /schemas/spi/ibm,spi-fsi.yaml + required: - compatible - reg @@ -35,4 +45,22 @@ examples: fsi2spi@1c00 { compatible = "ibm,fsi2spi"; reg = <0x1c00 0x400>; + #address-cells = <1>; + #size-cells = <0>; + + spi@0 { + compatible = "ibm,spi-fsi"; + reg = <0>; + #address-cells = <1>; + #size-cells = <0>; + + eeprom@0 { + compatible = "atmel,at25"; + reg = <0>; + address-width = <24>; + pagesize = <256>; + size = <0x80000>; + spi-max-frequency = <1000000>; + }; + }; }; -- 2.39.3