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Wed, 17 Jan 2024 09:45:32 +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; Wed, 17 Jan 2024 09:45:32 +0000 From: Hector Palacios To: linus.walleij@linaro.org, brgl@bgdev.pl, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org Cc: andy@kernel.org, conor+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, stefan@agner.ch, linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, hector.palacios@digi.com Subject: [PATCH v4 1/3] gpio: vf610: add support to DT 'ngpios' property Date: Wed, 17 Jan 2024 10:44:51 +0100 Message-Id: <20240117094453.100518-2-hector.palacios@digi.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240117094453.100518-1-hector.palacios@digi.com> References: <20240117094453.100518-1-hector.palacios@digi.com> X-ClientProxiedBy: VI1PR06CA0108.eurprd06.prod.outlook.com (2603:10a6:803:8c::37) 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_|MN2PR10MB4317:EE_ X-MS-Office365-Filtering-Correlation-Id: ebd8788a-34d8-42ab-60a6-08dc17410c16 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Allow optional generic 'ngpios' property to be specified from the device tree and default to VF610_GPIO_PER_PORT (32) if the property does not exist. Signed-off-by: Hector Palacios Reviewed-by: Linus Walleij --- drivers/gpio/gpio-vf610.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) 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;