Lines Matching +full:pinctrl +full:- +full:pin +full:- +full:array

1 // SPDX-License-Identifier: GPL-2.0-only
5  * GPIO and pin control functions on this SOC are handled by the "TLMM"
6  * device.  The driver which controls this device is pinctrl-msm.c.  Each
8  * with pinctrl-msm.c.  This means that all TLMM drivers are pin control
11  * This pin control driver is intended to be used only an ACPI-enabled
12  * system.  As such, UEFI will handle all pin control configuration, so
13  * this driver does not provide pin control functions.  It is effectively
14  * a GPIO-only driver.  The alternative is to duplicate the GPIO code of
15  * pinctrl-msm.c into another driver.
20 #include <linux/pinctrl/pinctrl.h>
23 #include "pinctrl-msm.h"
25 /* A maximum of 256 allows us to use a u8 array to hold the GPIO numbers */
33 	struct msm_pinctrl_soc_data *pinctrl;  in qdf2xxx_pinctrl_probe()  local
40 	u8 gpios[MAX_GPIOS];      /* An array of supported GPIOs */  in qdf2xxx_pinctrl_probe()
44 	ret = device_property_read_u32(&pdev->dev, "num-gpios", &num_gpios);  in qdf2xxx_pinctrl_probe()
46 		dev_err(&pdev->dev, "missing 'num-gpios' property\n");  in qdf2xxx_pinctrl_probe()
50 		dev_err(&pdev->dev, "invalid 'num-gpios' property\n");  in qdf2xxx_pinctrl_probe()
51 		return -ENODEV;  in qdf2xxx_pinctrl_probe()
55 	ret = device_property_count_u8(&pdev->dev, "gpios");  in qdf2xxx_pinctrl_probe()
57 		dev_err(&pdev->dev, "missing 'gpios' property\n");  in qdf2xxx_pinctrl_probe()
61 	 * The number of available GPIOs should be non-zero, and no  in qdf2xxx_pinctrl_probe()
65 		dev_err(&pdev->dev, "invalid 'gpios' property\n");  in qdf2xxx_pinctrl_probe()
66 		return -ENODEV;  in qdf2xxx_pinctrl_probe()
70 	ret = device_property_read_u8_array(&pdev->dev, "gpios", gpios,  in qdf2xxx_pinctrl_probe()
73 		dev_err(&pdev->dev, "could not read list of GPIOs\n");  in qdf2xxx_pinctrl_probe()
77 	pinctrl = devm_kzalloc(&pdev->dev, sizeof(*pinctrl), GFP_KERNEL);  in qdf2xxx_pinctrl_probe()
78 	pins = devm_kcalloc(&pdev->dev, num_gpios,  in qdf2xxx_pinctrl_probe()
80 	groups = devm_kcalloc(&pdev->dev, num_gpios,  in qdf2xxx_pinctrl_probe()
82 	names = devm_kcalloc(&pdev->dev, avail_gpios, NAME_SIZE, GFP_KERNEL);  in qdf2xxx_pinctrl_probe()
84 	if (!pinctrl || !pins || !groups || !names)  in qdf2xxx_pinctrl_probe()
85 		return -ENOMEM;  in qdf2xxx_pinctrl_probe()
88 	 * Initialize the array.  GPIOs not listed in the 'gpios' array  in qdf2xxx_pinctrl_probe()
127 	pinctrl->pins = pins;  in qdf2xxx_pinctrl_probe()
128 	pinctrl->groups = groups;  in qdf2xxx_pinctrl_probe()
129 	pinctrl->npins = num_gpios;  in qdf2xxx_pinctrl_probe()
130 	pinctrl->ngroups = num_gpios;  in qdf2xxx_pinctrl_probe()
131 	pinctrl->ngpios = num_gpios;  in qdf2xxx_pinctrl_probe()
133 	return msm_pinctrl_probe(pdev, pinctrl);  in qdf2xxx_pinctrl_probe()
144 		.name = "qdf2xxx-pinctrl",
163 MODULE_DESCRIPTION("Qualcomm Technologies QDF2xxx pin control driver");