1 // SPDX-License-Identifier: GPL-2.0-only
7  * pull-down, pull-up, drive strength and muxing.
10  * that is pin-dependent. Functions are declared statically in this driver.
12  * We create pinctrl groups that are 1:1 equivalent to pins: each group has a
15  * We use eq5p_ as prefix, as-in "EyeQ5 Pinctrl", but way shorter.
33 #include <linux/pinctrl/pinconf-generic.h>
39 #include "pinctrl-utils.h"
198 	PINCTRL_PINFUNCTION("mclk0", mclk0_groups, ARRAY_SIZE(mclk0_groups)),
205 	void __iomem *ptr = pctrl->base + eq5p_regs[bank][reg];  in eq5p_update_bits()
213 	u32 val = readl(pctrl->base + eq5p_regs[bank][reg]);  in eq5p_test_bit()
234 		return pin - EQ5P_PIN_OFFSET_BANK_B;  in eq5p_pin_to_offset()
245 	return pctldev->desc->pins[selector].name;  in eq5p_pinctrl_get_group_name()
250 				       const unsigned int **pins,  in eq5p_pinctrl_get_group_pins()  argument
253 	*pins = &pctldev->desc->pins[selector].number;  in eq5p_pinctrl_get_group_pins()
284 			val_ds = readl(pctrl->base + eq5p_regs[bank][EQ5P_DS_HIGH]);  in eq5p_pinconf_get()
285 			offset -= 32;  in eq5p_pinconf_get()
287 			val_ds = readl(pctrl->base + eq5p_regs[bank][EQ5P_DS_LOW]);  in eq5p_pinconf_get()
292 		return -ENOTSUPP;  in eq5p_pinconf_get()
304 	const char *pin_name = pctrl->desc.pins[pin].name;  in eq5p_pinctrl_pin_dbg_show()
314 	 * First, let's get the function name. All pins have only two functions:  in eq5p_pinctrl_pin_dbg_show()
324 				/* Groups and pins are the same thing for us. */  in eq5p_pinctrl_pin_dbg_show()
339 		 * should never occur as all pins have exactly two functions.  in eq5p_pinctrl_pin_dbg_show()
403 	const char *group_name = pctldev->desc->pins[pin].name;  in eq5p_pinmux_set_mux()
409 	dev_dbg(pctldev->dev, "func=%s group=%s\n", func_name, group_name);  in eq5p_pinmux_set_mux()
444 		dev_err(pctldev->dev, "Unsupported drive strength: %u\n", arg);  in eq5p_pinconf_set_drive_strength()
445 		return -EINVAL;  in eq5p_pinconf_set_drive_strength()
452 		offset -= 32;  in eq5p_pinconf_set_drive_strength()
467 	const char *pin_name = pctldev->desc->pins[pin].name;  in eq5p_pinconf_set()
470 	struct device *dev = pctldev->dev;  in eq5p_pinconf_set()
491 				return -ENOTSUPP;  in eq5p_pinconf_set()
502 				return -ENOTSUPP;  in eq5p_pinconf_set()
517 			return -ENOTSUPP;  in eq5p_pinconf_set()
528 	/* Pins and groups are equivalent in this driver. */
536 	struct device *dev = &adev->dev;  in eq5p_probe()
543 		return -ENOMEM;  in eq5p_probe()
545 	pctrl->base = (void __iomem *)dev_get_platdata(dev);  in eq5p_probe()
546 	pctrl->desc.name = dev_name(dev);  in eq5p_probe()
547 	pctrl->desc.pins = eq5p_pins;  in eq5p_probe()
548 	pctrl->desc.npins = ARRAY_SIZE(eq5p_pins);  in eq5p_probe()
549 	pctrl->desc.pctlops = &eq5p_pinctrl_ops;  in eq5p_probe()
550 	pctrl->desc.pmxops = &eq5p_pinmux_ops;  in eq5p_probe()
551 	pctrl->desc.confops = &eq5p_pinconf_ops;  in eq5p_probe()
552 	pctrl->desc.owner = THIS_MODULE;  in eq5p_probe()
554 	ret = devm_pinctrl_register_and_init(dev, &pctrl->desc, pctrl, &pctldev);  in eq5p_probe()