2874c5fd28
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
92 lines
2.5 KiB
C
92 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/* NXP PCF50633 GPIO Driver
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*
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* (C) 2006-2008 by Openmoko, Inc.
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* Author: Balaji Rao <balajirrao@openmoko.org>
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* All rights reserved.
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*
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* Broken down from monstrous PCF50633 driver mainly by
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* Harald Welte, Andy Green and Werner Almesberger
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/mfd/pcf50633/core.h>
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#include <linux/mfd/pcf50633/gpio.h>
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#include <linux/mfd/pcf50633/pmic.h>
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static const u8 pcf50633_regulator_registers[PCF50633_NUM_REGULATORS] = {
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[PCF50633_REGULATOR_AUTO] = PCF50633_REG_AUTOOUT,
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[PCF50633_REGULATOR_DOWN1] = PCF50633_REG_DOWN1OUT,
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[PCF50633_REGULATOR_DOWN2] = PCF50633_REG_DOWN2OUT,
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[PCF50633_REGULATOR_MEMLDO] = PCF50633_REG_MEMLDOOUT,
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[PCF50633_REGULATOR_LDO1] = PCF50633_REG_LDO1OUT,
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[PCF50633_REGULATOR_LDO2] = PCF50633_REG_LDO2OUT,
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[PCF50633_REGULATOR_LDO3] = PCF50633_REG_LDO3OUT,
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[PCF50633_REGULATOR_LDO4] = PCF50633_REG_LDO4OUT,
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[PCF50633_REGULATOR_LDO5] = PCF50633_REG_LDO5OUT,
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[PCF50633_REGULATOR_LDO6] = PCF50633_REG_LDO6OUT,
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[PCF50633_REGULATOR_HCLDO] = PCF50633_REG_HCLDOOUT,
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};
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int pcf50633_gpio_set(struct pcf50633 *pcf, int gpio, u8 val)
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{
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u8 reg;
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reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
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return pcf50633_reg_set_bit_mask(pcf, reg, 0x07, val);
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}
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EXPORT_SYMBOL_GPL(pcf50633_gpio_set);
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u8 pcf50633_gpio_get(struct pcf50633 *pcf, int gpio)
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{
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u8 reg, val;
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reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
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val = pcf50633_reg_read(pcf, reg) & 0x07;
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return val;
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}
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EXPORT_SYMBOL_GPL(pcf50633_gpio_get);
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int pcf50633_gpio_invert_set(struct pcf50633 *pcf, int gpio, int invert)
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{
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u8 val, reg;
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reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
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val = !!invert << 3;
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return pcf50633_reg_set_bit_mask(pcf, reg, 1 << 3, val);
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}
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EXPORT_SYMBOL_GPL(pcf50633_gpio_invert_set);
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int pcf50633_gpio_invert_get(struct pcf50633 *pcf, int gpio)
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{
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u8 reg, val;
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reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
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val = pcf50633_reg_read(pcf, reg);
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return val & (1 << 3);
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}
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EXPORT_SYMBOL_GPL(pcf50633_gpio_invert_get);
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int pcf50633_gpio_power_supply_set(struct pcf50633 *pcf,
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int gpio, int regulator, int on)
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{
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u8 reg, val, mask;
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/* the *ENA register is always one after the *OUT register */
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reg = pcf50633_regulator_registers[regulator] + 1;
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val = !!on << (gpio - PCF50633_GPIO1);
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mask = 1 << (gpio - PCF50633_GPIO1);
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return pcf50633_reg_set_bit_mask(pcf, reg, mask, val);
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}
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EXPORT_SYMBOL_GPL(pcf50633_gpio_power_supply_set);
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MODULE_LICENSE("GPL");
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