/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2016-2019, The Linux Foundation. All rights reserved. * Copyright (c) 2020 Linaro Ltd. */ #ifndef __PINCTRL_LPASS_LPI_H__ #define __PINCTRL_LPASS_LPI_H__ #include <linux/bits.h> #include <linux/kernel.h> #include "../core.h" struct platform_device; struct pinctrl_pin_desc; #define LPI_SLEW_RATE_CTL_REG 0xa000 #define LPI_TLMM_REG_OFFSET 0x1000 #define LPI_SLEW_RATE_MAX 0x03 #define LPI_SLEW_BITS_SIZE 0x02 #define LPI_SLEW_RATE_MASK GENMASK(1, 0) #define LPI_GPIO_CFG_REG 0x00 #define LPI_GPIO_PULL_MASK GENMASK(1, 0) #define LPI_GPIO_FUNCTION_MASK GENMASK(5, 2) #define LPI_GPIO_OUT_STRENGTH_MASK GENMASK(8, 6) #define LPI_GPIO_OE_MASK BIT(9) #define LPI_GPIO_VALUE_REG 0x04 #define LPI_GPIO_VALUE_IN_MASK BIT(0) #define LPI_GPIO_VALUE_OUT_MASK BIT(1) #define LPI_GPIO_BIAS_DISABLE 0x0 #define LPI_GPIO_PULL_DOWN 0x1 #define LPI_GPIO_KEEPER 0x2 #define LPI_GPIO_PULL_UP 0x3 #define LPI_GPIO_DS_TO_VAL(v) (v / 2 - 1) #define LPI_NO_SLEW -1 #define LPI_FUNCTION(fname) \ [LPI_MUX_##fname] = { \ .name = #fname, \ .groups = fname##_groups, \ .ngroups = ARRAY_SIZE(fname##_groups), \ } #define LPI_PINGROUP(id, soff, f1, f2, f3, f4) \ { \ .group.name = "gpio" #id, \ .group.pins = gpio##id##_pins, \ .pin = id, \ .slew_offset = soff, \ .group.num_pins = ARRAY_SIZE(gpio##id##_pins), \ .funcs = (int[]){ \ LPI_MUX_gpio, \ LPI_MUX_##f1, \ LPI_MUX_##f2, \ LPI_MUX_##f3, \ LPI_MUX_##f4, \ }, \ .nfuncs = 5, \ } struct lpi_pingroup { struct group_desc group; unsigned int pin; /* Bit offset in slew register for SoundWire pins only */ int slew_offset; unsigned int *funcs; unsigned int nfuncs; }; struct lpi_function { const char *name; const char * const *groups; unsigned int ngroups; }; struct lpi_pinctrl_variant_data { const struct pinctrl_pin_desc *pins; int npins; const struct lpi_pingroup *groups; int ngroups; const struct lpi_function *functions; int nfunctions; }; int lpi_pinctrl_probe(struct platform_device *pdev); int lpi_pinctrl_remove(struct platform_device *pdev); #endif /*__PINCTRL_LPASS_LPI_H__*/