1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Driver for the NXP ISP1760 chip 4 * 5 * Copyright 2014 Laurent Pinchart 6 * Copyright 2007 Sebastian Siewior 7 * 8 * Contacts: 9 * Sebastian Siewior <bigeasy@linutronix.de> 10 * Laurent Pinchart <laurent.pinchart@ideasonboard.com> 11 */ 12 13 #ifndef _ISP1760_CORE_H_ 14 #define _ISP1760_CORE_H_ 15 16 #include <linux/ioport.h> 17 #include <linux/regmap.h> 18 19 #include "isp1760-hcd.h" 20 #include "isp1760-udc.h" 21 22 struct device; 23 struct gpio_desc; 24 25 /* 26 * Device flags that can vary from board to board. All of these 27 * indicate the most "atypical" case, so that a devflags of 0 is 28 * a sane default configuration. 29 */ 30 #define ISP1760_FLAG_BUS_WIDTH_16 0x00000002 /* 16-bit data bus width */ 31 #define ISP1760_FLAG_PERIPHERAL_EN 0x00000004 /* Port 1 supports Peripheral mode*/ 32 #define ISP1760_FLAG_ANALOG_OC 0x00000008 /* Analog overcurrent */ 33 #define ISP1760_FLAG_DACK_POL_HIGH 0x00000010 /* DACK active high */ 34 #define ISP1760_FLAG_DREQ_POL_HIGH 0x00000020 /* DREQ active high */ 35 #define ISP1760_FLAG_ISP1761 0x00000040 /* Chip is ISP1761 */ 36 #define ISP1760_FLAG_INTR_POL_HIGH 0x00000080 /* Interrupt polarity active high */ 37 #define ISP1760_FLAG_INTR_EDGE_TRIG 0x00000100 /* Interrupt edge triggered */ 38 39 struct isp1760_device { 40 struct device *dev; 41 42 unsigned int devflags; 43 struct gpio_desc *rst_gpio; 44 45 struct isp1760_hcd hcd; 46 struct isp1760_udc udc; 47 }; 48 49 int isp1760_register(struct resource *mem, int irq, unsigned long irqflags, 50 struct device *dev, unsigned int devflags); 51 void isp1760_unregister(struct device *dev); 52 53 void isp1760_set_pullup(struct isp1760_device *isp, bool enable); 54 55 static inline u32 isp1760_field_read(struct regmap_field **fields, u32 field) 56 { 57 unsigned int val; 58 59 regmap_field_read(fields[field], &val); 60 61 return val; 62 } 63 64 static inline void isp1760_field_write(struct regmap_field **fields, u32 field, 65 u32 val) 66 { 67 regmap_field_write(fields[field], val); 68 } 69 70 static inline void isp1760_field_set(struct regmap_field **fields, u32 field) 71 { 72 isp1760_field_write(fields, field, 0xFFFFFFFF); 73 } 74 75 static inline void isp1760_field_clear(struct regmap_field **fields, u32 field) 76 { 77 isp1760_field_write(fields, field, 0); 78 } 79 80 static inline u32 isp1760_reg_read(struct regmap *regs, u32 reg) 81 { 82 unsigned int val; 83 84 regmap_read(regs, reg, &val); 85 86 return val; 87 } 88 89 static inline void isp1760_reg_write(struct regmap *regs, u32 reg, u32 val) 90 { 91 regmap_write(regs, reg, val); 92 } 93 #endif 94