1 // SPDX-License-Identifier: GPL-2.0-only
4  * based on linux/drivers/pinctrl/pinmux-gemini.c
8  * This is a group-only pin controller.
23 #include <linux/pinctrl/pinconf-generic.h>
28 #include "pinctrl-utils.h"
30 #define DRIVER_NAME "pinctrl-ep93xx"
49 	struct ep93xx_regmap_adev *aux = pmx->aux_dev;  in ep93xx_pinctrl_update_bits()
51 	aux->update_bits(aux->map, aux->lock, reg, mask, val);  in ep93xx_pinctrl_update_bits()
73  * descriptions of the registers, “DeviceCfg” on page 5-25 and “SysCfg” on page 5-34, for a
340  * Note: The EP9301, EP9302, EP9312, and EP9315 processors each have two PWMs with
679 /* I can't find info on those - it's some internal state */
732 /* ep9312, ep9315 */
1183 	switch (pmx->model) {  in ep93xx_get_groups_count()
1200 	switch (pmx->model) {  in ep93xx_get_group_name()
1219 	switch (pmx->model) {  in ep93xx_get_group_pins()
1233 		return -EINVAL;  in ep93xx_get_group_pins()
1263 	PINCTRL_PINFUNCTION("pata", idegrps, ARRAY_SIZE(idegrps)),
1281 	switch (pmx->model) {  in ep93xx_pmx_set_mux()
1292 		dev_err(pmx->dev, "invalid SoC type\n");  in ep93xx_pmx_set_mux()
1293 		return -ENODEV;  in ep93xx_pmx_set_mux()
1298 	dev_dbg(pmx->dev,  in ep93xx_pmx_set_mux()
1300 		func->name, grp->grp.name, grp->mask, grp->value);  in ep93xx_pmx_set_mux()
1302 	regmap_read(pmx->map, EP93XX_SYSCON_DEVCFG, &before);  in ep93xx_pmx_set_mux()
1304 				   grp->mask, grp->value);  in ep93xx_pmx_set_mux()
1305 	regmap_read(pmx->map, EP93XX_SYSCON_DEVCFG, &after);  in ep93xx_pmx_set_mux()
1307 	dev_dbg(pmx->dev, "before=0x%x, after=0x%x, mask=0x%lx\n",  in ep93xx_pmx_set_mux()
1313 	expected = before & ~grp->mask;  in ep93xx_pmx_set_mux()
1314 	expected |= grp->value;  in ep93xx_pmx_set_mux()
1322 		dev_err(pmx->dev,  in ep93xx_pmx_set_mux()
1325 		dev_err(pmx->dev,  in ep93xx_pmx_set_mux()
1330 	return tmp ? -EINVAL : 0;  in ep93xx_pmx_set_mux()
1372 	struct device *dev = &adev->dev;  in ep93xx_pmx_probe()
1378 		return -ENOMEM;  in ep93xx_pmx_probe()
1380 	pmx->dev = dev;  in ep93xx_pmx_probe()
1381 	pmx->map = rdev->map;  in ep93xx_pmx_probe()
1382 	pmx->aux_dev = rdev;  in ep93xx_pmx_probe()
1383 	pmx->model = (enum ep93xx_pinctrl_model)(uintptr_t)id->driver_data;  in ep93xx_pmx_probe()
1384 	switch (pmx->model) {  in ep93xx_pmx_probe()
1401 		return dev_err_probe(dev, -EINVAL, "unknown pin control model: %u\n", pmx->model);  in ep93xx_pmx_probe()
1405 	device_set_node(dev, dev_fwnode(adev->dev.parent));  in ep93xx_pmx_probe()
1406 	pmx->pctl = devm_pinctrl_register(dev, &ep93xx_pmx_desc, pmx);  in ep93xx_pmx_probe()
1407 	if (IS_ERR(pmx->pctl))  in ep93xx_pmx_probe()
1408 		return dev_err_probe(dev, PTR_ERR(pmx->pctl), "could not register pinmux driver\n");  in ep93xx_pmx_probe()
1415 		.name = "soc_ep93xx.pinctrl-ep9301",
1419 		.name = "soc_ep93xx.pinctrl-ep9307",
1423 		.name = "soc_ep93xx.pinctrl-ep9312",