1 // SPDX-License-Identifier: GPL-2.0+
14 #include <linux/pinctrl/pinconf-generic.h>
20 #include "pinctrl-utils.h"
25  * struct bm1880_pinctrl - driver data
45  * struct bm1880_pctrl_group - pinctrl group
47  * @pins:	Array of pins belonging to this group
48  * @npins:	Number of @pins
52 	const unsigned int *pins;  member
57  * struct bm1880_pinmux_function - a pinmux function
75  * struct bm1880_pinconf_data - pinconf data
366 		.pins = nm ## _pins, \
430 	BM1880_PINCTRL_GRP(uart11),
718 	BM1880_PINMUX_FUNCTION(uart11, 1),
923 	return pctrl->ngroups;  in bm1880_pctrl_get_groups_count()
931 	return pctrl->groups[selector].name;  in bm1880_pctrl_get_group_name()
936 				       const unsigned int **pins,  in bm1880_pctrl_get_group_pins()  argument
941 	*pins = pctrl->groups[selector].pins;  in bm1880_pctrl_get_group_pins()
942 	*num_pins = pctrl->groups[selector].npins;  in bm1880_pctrl_get_group_pins()
960 	return pctrl->nfuncs;  in bm1880_pmux_get_functions_count()
968 	return pctrl->funcs[selector].name;  in bm1880_pmux_get_function_name()
978 	*groups = pctrl->funcs[selector].groups;  in bm1880_pmux_get_function_groups()
979 	*num_groups = pctrl->funcs[selector].ngroups;  in bm1880_pmux_get_function_groups()
988 	const struct bm1880_pctrl_group *pgrp = &pctrl->groups[group];  in bm1880_pinmux_set_mux()
989 	const struct bm1880_pinmux_function *func = &pctrl->funcs[function];  in bm1880_pinmux_set_mux()
992 	for (i = 0; i < pgrp->npins; i++) {  in bm1880_pinmux_set_mux()
993 		unsigned int pin = pgrp->pins[i];  in bm1880_pinmux_set_mux()
996 		u32 regval = readl_relaxed(pctrl->base + BM1880_REG_MUX +  in bm1880_pinmux_set_mux()
1000 		regval |= func->mux_val << mux_offset;  in bm1880_pinmux_set_mux()
1002 		writel_relaxed(regval, pctrl->base + BM1880_REG_MUX + offset);  in bm1880_pinmux_set_mux()
1062 			return -EINVAL;  in bm1880_pinconf_drv_set()
1083 			return -EINVAL;  in bm1880_pinconf_drv_set()
1094 	int ret = -ENOTSUPP;  in bm1880_pinconf_drv_get()
1162 	regval = readl_relaxed(pctrl->base + BM1880_REG_MUX + offset);  in bm1880_pinconf_cfg_get()
1187 		ret = bm1880_pinconf_drv_get(pctrl->pinconf[pin].drv_bits,  in bm1880_pinconf_cfg_get()
1195 		return -ENOTSUPP;  in bm1880_pinconf_cfg_get()
1213 	regval = readl_relaxed(pctrl->base + BM1880_REG_MUX + offset);  in bm1880_pinconf_cfg_set()
1249 						pctrl->pinconf[pin].drv_bits,  in bm1880_pinconf_cfg_set()
1256 			dev_warn(pctldev->dev,  in bm1880_pinconf_cfg_set()
1262 		writel_relaxed(regval, pctrl->base + BM1880_REG_MUX + offset);  in bm1880_pinconf_cfg_set()
1275 	const struct bm1880_pctrl_group *pgrp = &pctrl->groups[selector];  in bm1880_pinconf_group_set()
1277 	for (i = 0; i < pgrp->npins; i++) {  in bm1880_pinconf_group_set()
1278 		ret = bm1880_pinconf_cfg_set(pctldev, pgrp->pins[i], configs,  in bm1880_pinconf_group_set()
1303 	.pins = bm1880_pins,
1316 	pctrl = devm_kzalloc(&pdev->dev, sizeof(*pctrl), GFP_KERNEL);  in bm1880_pinctrl_probe()
1318 		return -ENOMEM;  in bm1880_pinctrl_probe()
1320 	pctrl->base = devm_platform_ioremap_resource(pdev, 0);  in bm1880_pinctrl_probe()
1321 	if (IS_ERR(pctrl->base))  in bm1880_pinctrl_probe()
1322 		return PTR_ERR(pctrl->base);  in bm1880_pinctrl_probe()
1324 	pctrl->groups = bm1880_pctrl_groups;  in bm1880_pinctrl_probe()
1325 	pctrl->ngroups = ARRAY_SIZE(bm1880_pctrl_groups);  in bm1880_pinctrl_probe()
1326 	pctrl->funcs = bm1880_pmux_functions;  in bm1880_pinctrl_probe()
1327 	pctrl->nfuncs = ARRAY_SIZE(bm1880_pmux_functions);  in bm1880_pinctrl_probe()
1328 	pctrl->pinconf = bm1880_pinconf;  in bm1880_pinctrl_probe()
1330 	pctrl->pctrldev = devm_pinctrl_register(&pdev->dev, &bm1880_desc,  in bm1880_pinctrl_probe()
1332 	if (IS_ERR(pctrl->pctrldev))  in bm1880_pinctrl_probe()
1333 		return PTR_ERR(pctrl->pctrldev);  in bm1880_pinctrl_probe()
1337 	dev_info(&pdev->dev, "BM1880 pinctrl driver initialized\n");  in bm1880_pinctrl_probe()
1343 	{ .compatible = "bitmain,bm1880-pinctrl" },
1349 		.name = "pinctrl-bm1880",