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Mon, 15 Jan 2024 13:16:53 +0000 Received: from BY5PR10MB4370.namprd10.prod.outlook.com ([fe80::283b:b934:7a82:c8c7]) by BY5PR10MB4370.namprd10.prod.outlook.com ([fe80::283b:b934:7a82:c8c7%7]) with mapi id 15.20.7181.026; Mon, 15 Jan 2024 13:16:53 +0000 From: Hector Palacios To: linus.walleij@linaro.org, brgl@bgdev.pl, robh+dt@kernel.org Cc: stefan@agner.ch, linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, peng.fan@nxp.com, haibo.chen@nxp.com, alexander.stein@ew.tq-group.com, hector.palacios@digi.com Subject: [PATCH v2 1/2] gpio: vf610: add support to DT 'ngpios' property Date: Mon, 15 Jan 2024 14:16:04 +0100 Message-Id: <20240115131605.395691-2-hector.palacios@digi.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240115131605.395691-1-hector.palacios@digi.com> References: <20240115131605.395691-1-hector.palacios@digi.com> X-ClientProxiedBy: DM5PR08CA0042.namprd08.prod.outlook.com (2603:10b6:4:60::31) To BY5PR10MB4370.namprd10.prod.outlook.com (2603:10b6:a03:20b::19) Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BY5PR10MB4370:EE_|PH7PR10MB5724:EE_ X-MS-Office365-Filtering-Correlation-Id: 74b1062f-f831-4599-9e06-08dc15cc3dad X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Signed-off-by: Hector Palacios --- Documentation/devicetree/bindings/gpio/gpio-vf610.yaml | 6 ++++++ drivers/gpio/gpio-vf610.c | 7 ++++++- 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/gpio/gpio-vf610.yaml b/Documentation/devicetree/bindings/gpio/gpio-vf610.yaml index a27f92950257..ba4ebdbc5546 100644 --- a/Documentation/devicetree/bindings/gpio/gpio-vf610.yaml +++ b/Documentation/devicetree/bindings/gpio/gpio-vf610.yaml @@ -65,6 +65,12 @@ properties: minItems: 1 maxItems: 4 + ngpios: + description: The number of GPIO pins of the port + minimum: 1 + maximum: 32 + default: 32 + patternProperties: "^.+-hog(-[0-9]+)?$": type: object diff --git a/drivers/gpio/gpio-vf610.c b/drivers/gpio/gpio-vf610.c index 07e5e6323e86..4abdf75e9a0a 100644 --- a/drivers/gpio/gpio-vf610.c +++ b/drivers/gpio/gpio-vf610.c @@ -276,6 +276,7 @@ static int vf610_gpio_probe(struct platform_device *pdev) struct vf610_gpio_port *port; struct gpio_chip *gc; struct gpio_irq_chip *girq; + u32 ngpios; int i; int ret; bool dual_base; @@ -353,7 +354,11 @@ static int vf610_gpio_probe(struct platform_device *pdev) gc = &port->gc; gc->parent = dev; gc->label = dev_name(dev); - gc->ngpio = VF610_GPIO_PER_PORT; + ret = device_property_read_u32(dev, "ngpios", &ngpios); + if (ret || ngpios > VF610_GPIO_PER_PORT) + gc->ngpio = VF610_GPIO_PER_PORT; + else + gc->ngpio = (u16)ngpios; gc->base = -1; gc->request = gpiochip_generic_request;