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