/* SPDX-License-Identifier: GPL-2.0-only */ /* * Pinctrl driver for the Wondermedia SoC's * * Copyright (c) 2013 Tony Prisk <linux@prisktech.co.nz> */ #include <linux/gpio/driver.h> /* VT8500 has no enable register in the extgpio bank. */ #define NO_REG 0xFFFF #define WMT_PINCTRL_BANK(__en, __dir, __dout, __din, __pen, __pcfg) \ { \ .reg_en = __en, \ .reg_dir = __dir, \ .reg_data_out = __dout, \ .reg_data_in = __din, \ .reg_pull_en = __pen, \ .reg_pull_cfg = __pcfg, \ } /* Encode/decode the bank/bit pairs into a pin value */ #define WMT_PIN(__bank, __offset) ((__bank << 5) | __offset) #define WMT_BANK_FROM_PIN(__pin) (__pin >> 5) #define WMT_BIT_FROM_PIN(__pin) (__pin & 0x1f) #define WMT_GROUP(__name, __data) \ { \ .name = __name, \ .pins = __data, \ .npins = ARRAY_SIZE(__data), \ } struct wmt_pinctrl_bank_registers { u32 reg_en; u32 reg_dir; u32 reg_data_out; u32 reg_data_in; u32 reg_pull_en; u32 reg_pull_cfg; }; struct wmt_pinctrl_group { const char *name; const unsigned int *pins; const unsigned npins; }; struct wmt_pinctrl_data { struct device *dev; struct pinctrl_dev *pctl_dev; /* must be initialized before calling wmt_pinctrl_probe */ void __iomem *base; const struct wmt_pinctrl_bank_registers *banks; const struct pinctrl_pin_desc *pins; const char * const *groups; u32 nbanks; u32 npins; u32 ngroups; struct gpio_chip gpio_chip; struct pinctrl_gpio_range gpio_range; }; int wmt_pinctrl_probe(struct platform_device *pdev, struct wmt_pinctrl_data *data);