pinctrl/bcm/pinctrl-bcm6368.c

1 // SPDX-License-Identifier: GPL-2.0+
3  * Driver for BCM6368 GPIO unit (pinctrl + GPIO)
10 #include <linux/gpio/driver.h>
17 #include "../pinctrl-utils.h"
19 #include "pinctrl-bcm63xx.h"
382 	struct bcm6368_priv *priv = pc->driver_data;  in bcm6368_pinctrl_set_mux()
387 	if (fun->basemode) {  in bcm6368_pinctrl_set_mux()
390 		for (i = 0; i < pg->npins; i++) {  in bcm6368_pinctrl_set_mux()
391 			pin = pg->pins[i];  in bcm6368_pinctrl_set_mux()
396 		regmap_update_bits(pc->regs, BCM6368_MODE_REG, mask, 0);  in bcm6368_pinctrl_set_mux()
397 		regmap_field_write(priv->overlays, fun->basemode);  in bcm6368_pinctrl_set_mux()
399 		pin = pg->pins[0];  in bcm6368_pinctrl_set_mux()
402 			regmap_field_write(priv->overlays,  in bcm6368_pinctrl_set_mux()
405 		regmap_update_bits(pc->regs, BCM6368_MODE_REG, BIT(pin),  in bcm6368_pinctrl_set_mux()
409 	for (pin = 0; pin < pg->npins; pin++) {  in bcm6368_pinctrl_set_mux()
415 			struct gpio_chip *gc = range->gc;  in bcm6368_pinctrl_set_mux()
417 			if (fun->dir_out & BIT(pin))  in bcm6368_pinctrl_set_mux()
418 				gc->direction_output(gc, hw_gpio, 0);  in bcm6368_pinctrl_set_mux()
420 				gc->direction_input(gc, hw_gpio);  in bcm6368_pinctrl_set_mux()
432 	struct bcm6368_priv *priv = pc->driver_data;  in bcm6368_gpio_request_enable()
439 		regmap_update_bits(pc->regs, BCM6368_MODE_REG, BIT(offset), 0);  in bcm6368_gpio_request_enable()
442 		regmap_field_write(priv->overlays, BCM6368_BASEMODE_GPIO);  in bcm6368_gpio_request_enable()
475 	struct device *dev = &pdev->dev;  in bcm6368_pinctrl_probe()
482 		return -ENOMEM;  in bcm6368_pinctrl_probe()
490 	priv->overlays = devm_regmap_field_alloc(dev, pc->regs, overlays);  in bcm6368_pinctrl_probe()
491 	if (IS_ERR(priv->overlays))  in bcm6368_pinctrl_probe()
492 		return PTR_ERR(priv->overlays);  in bcm6368_pinctrl_probe()
498 	{ .compatible = "brcm,bcm6368-pinctrl", },
505 		.name = "bcm6368-pinctrl",