| /* SPDX-License-Identifier: GPL-2.0 */ | |
| /* | |
| * Driver for the NXP ISP1760 chip | |
| * | |
| * Copyright 2021 Linaro, Rui Miguel Silva | |
| * Copyright 2014 Laurent Pinchart | |
| * Copyright 2007 Sebastian Siewior | |
| * | |
| * Contacts: | |
| * Sebastian Siewior <bigeasy@linutronix.de> | |
| * Laurent Pinchart <laurent.pinchart@ideasonboard.com> | |
| * Rui Miguel Silva <rui.silva@linaro.org> | |
| */ | |
| #ifndef _ISP1760_CORE_H_ | |
| #define _ISP1760_CORE_H_ | |
| #include <linux/compat.h> | |
| #include <linux/ioport.h> | |
| #include <regmap.h> | |
| #include "isp1760-hcd.h" | |
| struct device; | |
| struct gpio_desc; | |
| /* | |
| * Device flags that can vary from board to board. All of these | |
| * indicate the most "atypical" case, so that a devflags of 0 is | |
| * a sane default configuration. | |
| */ | |
| #define ISP1760_FLAG_BUS_WIDTH_16 0x00000002 /* 16-bit data bus width */ | |
| #define ISP1760_FLAG_PERIPHERAL_EN 0x00000004 /* Port 1 supports Peripheral mode*/ | |
| #define ISP1760_FLAG_ANALOG_OC 0x00000008 /* Analog overcurrent */ | |
| #define ISP1760_FLAG_DACK_POL_HIGH 0x00000010 /* DACK active high */ | |
| #define ISP1760_FLAG_DREQ_POL_HIGH 0x00000020 /* DREQ active high */ | |
| #define ISP1760_FLAG_ISP1761 0x00000040 /* Chip is ISP1761 */ | |
| #define ISP1760_FLAG_INTR_POL_HIGH 0x00000080 /* Interrupt polarity active high */ | |
| #define ISP1760_FLAG_INTR_EDGE_TRIG 0x00000100 /* Interrupt edge triggered */ | |
| #define ISP1760_FLAG_ISP1763 0x00000200 /* Chip is ISP1763 */ | |
| #define ISP1760_FLAG_BUS_WIDTH_8 0x00000400 /* 8-bit data bus width */ | |
| struct isp1760_device { | |
| struct udevice *dev; | |
| unsigned int devflags; | |
| struct gpio_desc *rst_gpio; | |
| struct isp1760_hcd hcd; | |
| }; | |
| int isp1760_register(struct isp1760_device *isp, struct resource *mem, int irq, | |
| unsigned long irqflags); | |
| void isp1760_unregister(struct isp1760_device *isp); | |
| void isp1760_set_pullup(struct isp1760_device *isp, bool enable); | |
| static inline u32 isp1760_field_read(struct regmap_field **fields, u32 field) | |
| { | |
| unsigned int val; | |
| regmap_field_read(fields[field], &val); | |
| return val; | |
| } | |
| static inline void isp1760_field_write(struct regmap_field **fields, u32 field, | |
| u32 val) | |
| { | |
| regmap_field_write(fields[field], val); | |
| } | |
| static inline void isp1760_field_set(struct regmap_field **fields, u32 field) | |
| { | |
| isp1760_field_write(fields, field, 0xFFFFFFFF); | |
| } | |
| static inline void isp1760_field_clear(struct regmap_field **fields, u32 field) | |
| { | |
| isp1760_field_write(fields, field, 0); | |
| } | |
| static inline u32 isp1760_reg_read(struct regmap *regs, u32 reg) | |
| { | |
| unsigned int val; | |
| regmap_read(regs, reg, &val); | |
| return val; | |
| } | |
| static inline void isp1760_reg_write(struct regmap *regs, u32 reg, u32 val) | |
| { | |
| regmap_write(regs, reg, val); | |
| } | |
| #endif |