1 // SPDX-License-Identifier: GPL-2.0-only
6  * Copyright (C) 2009-2011 ST-Ericsson AB
11  * pins, so we enumerate the pads we can mux rather than actual pins. The pads
12  * are connected to different pins in different packaging types, so it would
25 #include <linux/pinctrl/pinconf-generic.h>
26 #include "pinctrl-coh901.h"
170 #define DRIVER_NAME "pinctrl-u300"
361 	PINCTRL_PIN(171, "MMC CMD DIR LS"),
366 	PINCTRL_PIN(176, "MMC CMD"),
623 	PINCTRL_PIN(431, "PIO ACC SDIO0 CMD"),
631 	PINCTRL_PIN(439, "PIO USB DAT VP"),
672  * u300_pmx_registers - the array of registers read/written for each pinmux
684  * struct u300_pin_group - describes a U300 pin group
686  * @pins: an array of discrete physical pins used in this group, taken
687  *	from the driver-local pin enumeration space
688  * @num_pins: the number of pins in this group array, i.e. the number of
689  *	elements in .pins so we can iterate over that array
693 	const unsigned int *pins;  member
698  * struct pmx_onmask - mask bits to enable/disable padmux
716 /* The chip power pins are VDD, GND, VDDIO and VSSIO */
809 		.pins = power_pins,
814 		.pins = emif0_pins,
819 		.pins = emif1_pins,
824 		.pins = uart0_pins,
829 		.pins = mmc0_pins,
834 		.pins = spi0_pins,
851 			       const unsigned **pins,  in u300_get_group_pins()  argument
854 	*pins = u300_pin_groups[selector].pins;  in u300_get_group_pins()
877  * struct u300_pmx_func - describes U300 pinmux functions
945 			val = upmx_mask->bits;  in u300_pmx_endisable()
949 		mask = upmx_mask->mask;  in u300_pmx_endisable()
951 			regval = readw(upmx->virtbase + u300_pmx_registers[i]);  in u300_pmx_endisable()
954 			writew(regval, upmx->virtbase + u300_pmx_registers[i]);  in u300_pmx_endisable()
965 	/* There is nothing to do with the power pins */  in u300_pmx_set_mux()
1008 	/* We get config for those pins we CAN get it for and that's it */  in u300_pin_config_get()
1010 		return -ENOTSUPP;  in u300_pin_config_get()
1012 	return u300_gpio_config_get(range->gc,  in u300_pin_config_get()
1013 				    (pin - range->pin_base + range->base),  in u300_pin_config_get()
1025 		return -EINVAL;  in u300_pin_config_set()
1029 		ret = u300_gpio_config_set(range->gc,  in u300_pin_config_set()
1030 			(pin - range->pin_base + range->base),  in u300_pin_config_set()
1047 	.pins = u300_pads,
1060 	upmx = devm_kzalloc(&pdev->dev, sizeof(*upmx), GFP_KERNEL);  in u300_pmx_probe()
1062 		return -ENOMEM;  in u300_pmx_probe()
1064 	upmx->dev = &pdev->dev;  in u300_pmx_probe()
1066 	upmx->virtbase = devm_platform_ioremap_resource(pdev, 0);  in u300_pmx_probe()
1067 	if (IS_ERR(upmx->virtbase))  in u300_pmx_probe()
1068 		return PTR_ERR(upmx->virtbase);  in u300_pmx_probe()
1070 	upmx->pctl = devm_pinctrl_register(&pdev->dev, &u300_pmx_desc, upmx);  in u300_pmx_probe()
1071 	if (IS_ERR(upmx->pctl)) {  in u300_pmx_probe()
1072 		dev_err(&pdev->dev, "could not register U300 pinmux driver\n");  in u300_pmx_probe()
1073 		return PTR_ERR(upmx->pctl);  in u300_pmx_probe()
1078 	dev_info(&pdev->dev, "initialized U300 pin control driver\n");  in u300_pmx_probe()
1084 	{ .compatible = "stericsson,pinctrl-u300" },