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	The device tree binding [1] specify the vendor-id, product-id, device-id and language-id as 16 bit values and the linux driver reads the boost-up value as 8 bit value. [1] https://www.kernel.org/doc/Documentation/devicetree/bindings/usb/usb251xb.txt Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com> Reviewed-by: Marek Vasut <marex@denx.de>
		
			
				
	
	
		
			606 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			606 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| // SPDX-License-Identifier: GPL-2.0+
 | |
| /*
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|  * Driver for Microchip USB251xB USB 2.0 Hi-Speed Hub Controller
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|  * Configuration via SMBus.
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|  *
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|  * Copyright (c) 2017 SKIDATA AG
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|  *
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|  * This work is based on the USB3503 driver by Dongjin Kim and
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|  * a not-accepted patch by Fabien Lahoudere, see:
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|  * https://patchwork.kernel.org/patch/9257715/
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|  */
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| 
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| #include <common.h>
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| #include <asm/gpio.h>
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| #include <dm.h>
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| #include <dm/device_compat.h>
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| #include <errno.h>
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| #include <i2c.h>
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| #include <linux/delay.h>
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| #include <linux/utf.h>
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| #include <power/regulator.h>
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| 
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| /* Internal Register Set Addresses & Default Values acc. to DS00001692C */
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| #define USB251XB_ADDR_VENDOR_ID_LSB	0x00
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| #define USB251XB_ADDR_VENDOR_ID_MSB	0x01
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| #define USB251XB_DEF_VENDOR_ID		0x0424
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| 
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| #define USB251XB_ADDR_PRODUCT_ID_LSB	0x02
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| #define USB251XB_ADDR_PRODUCT_ID_MSB	0x03
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| 
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| #define USB251XB_ADDR_DEVICE_ID_LSB	0x04
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| #define USB251XB_ADDR_DEVICE_ID_MSB	0x05
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| #define USB251XB_DEF_DEVICE_ID		0x0BB3
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| 
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| #define USB251XB_ADDR_CONFIG_DATA_1	0x06
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| #define USB251XB_DEF_CONFIG_DATA_1	0x9B
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| #define USB251XB_ADDR_CONFIG_DATA_2	0x07
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| #define USB251XB_DEF_CONFIG_DATA_2	0x20
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| #define USB251XB_ADDR_CONFIG_DATA_3	0x08
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| #define USB251XB_DEF_CONFIG_DATA_3	0x02
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| 
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| #define USB251XB_ADDR_NON_REMOVABLE_DEVICES	0x09
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| #define USB251XB_DEF_NON_REMOVABLE_DEVICES	0x00
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| 
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| #define USB251XB_ADDR_PORT_DISABLE_SELF	0x0A
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| #define USB251XB_DEF_PORT_DISABLE_SELF	0x00
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| #define USB251XB_ADDR_PORT_DISABLE_BUS	0x0B
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| #define USB251XB_DEF_PORT_DISABLE_BUS	0x00
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| 
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| #define USB251XB_ADDR_MAX_POWER_SELF	0x0C
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| #define USB251XB_DEF_MAX_POWER_SELF	0x01
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| #define USB251XB_ADDR_MAX_POWER_BUS	0x0D
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| #define USB251XB_DEF_MAX_POWER_BUS	0x32
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| 
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| #define USB251XB_ADDR_MAX_CURRENT_SELF	0x0E
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| #define USB251XB_DEF_MAX_CURRENT_SELF	0x01
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| #define USB251XB_ADDR_MAX_CURRENT_BUS	0x0F
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| #define USB251XB_DEF_MAX_CURRENT_BUS	0x32
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| 
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| #define USB251XB_ADDR_POWER_ON_TIME	0x10
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| #define USB251XB_DEF_POWER_ON_TIME	0x32
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| 
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| #define USB251XB_ADDR_LANGUAGE_ID_HIGH	0x11
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| #define USB251XB_ADDR_LANGUAGE_ID_LOW	0x12
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| #define USB251XB_DEF_LANGUAGE_ID	0x0000
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| 
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| #define USB251XB_STRING_BUFSIZE			62
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| #define USB251XB_ADDR_MANUFACTURER_STRING_LEN	0x13
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| #define USB251XB_ADDR_MANUFACTURER_STRING	0x16
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| #define USB251XB_DEF_MANUFACTURER_STRING	"Microchip"
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| 
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| #define USB251XB_ADDR_PRODUCT_STRING_LEN	0x14
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| #define USB251XB_ADDR_PRODUCT_STRING		0x54
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| 
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| #define USB251XB_ADDR_SERIAL_STRING_LEN		0x15
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| #define USB251XB_ADDR_SERIAL_STRING		0x92
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| #define USB251XB_DEF_SERIAL_STRING		""
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| 
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| #define USB251XB_ADDR_BATTERY_CHARGING_ENABLE	0xD0
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| #define USB251XB_DEF_BATTERY_CHARGING_ENABLE	0x00
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| 
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| #define USB251XB_ADDR_BOOST_UP	0xF6
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| #define USB251XB_DEF_BOOST_UP	0x00
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| #define USB251XB_ADDR_BOOST_57	0xF7
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| #define USB251XB_DEF_BOOST_57	0x00
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| #define USB251XB_ADDR_BOOST_14	0xF8
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| #define USB251XB_DEF_BOOST_14	0x00
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| 
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| #define USB251XB_ADDR_PORT_SWAP	0xFA
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| #define USB251XB_DEF_PORT_SWAP	0x00
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| 
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| #define USB251XB_ADDR_PORT_MAP_12	0xFB
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| #define USB251XB_DEF_PORT_MAP_12	0x00
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| #define USB251XB_ADDR_PORT_MAP_34	0xFC
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| #define USB251XB_DEF_PORT_MAP_34	0x00 /* USB251{3B/i,4B/i,7/i} only */
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| #define USB251XB_ADDR_PORT_MAP_56	0xFD
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| #define USB251XB_DEF_PORT_MAP_56	0x00 /* USB2517/i only */
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| #define USB251XB_ADDR_PORT_MAP_7	0xFE
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| #define USB251XB_DEF_PORT_MAP_7		0x00 /* USB2517/i only */
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| 
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| #define USB251XB_ADDR_STATUS_COMMAND		0xFF
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| #define USB251XB_STATUS_COMMAND_SMBUS_DOWN	0x04
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| #define USB251XB_STATUS_COMMAND_RESET		0x02
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| #define USB251XB_STATUS_COMMAND_ATTACH		0x01
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| 
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| #define USB251XB_I2C_REG_SZ	0x100
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| #define USB251XB_I2C_WRITE_SZ	0x10
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| 
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| #define DRIVER_NAME	"usb251xb"
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| #define DRIVER_DESC	"Microchip USB 2.0 Hi-Speed Hub Controller"
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| 
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| struct usb251xb {
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| 	struct device *dev;
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| 	struct i2c_client *i2c;
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| 	struct udevice *vdd;
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| 	u8 skip_config;
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| 	struct gpio_desc gpio_reset;
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| 	u32 vendor_id;
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| 	u32 product_id;
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| 	u32 device_id;
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| 	u8  conf_data1;
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| 	u8  conf_data2;
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| 	u8  conf_data3;
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| 	u8  non_rem_dev;
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| 	u8  port_disable_sp;
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| 	u8  port_disable_bp;
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| 	u8  max_power_sp;
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| 	u8  max_power_bp;
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| 	u8  max_current_sp;
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| 	u8  max_current_bp;
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| 	u8  power_on_time;
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| 	u32 lang_id;
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| 	u8 manufacturer_len;
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| 	u8 product_len;
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| 	u8 serial_len;
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| 	s16 manufacturer[USB251XB_STRING_BUFSIZE];
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| 	s16 product[USB251XB_STRING_BUFSIZE];
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| 	s16 serial[USB251XB_STRING_BUFSIZE];
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| 	u8  bat_charge_en;
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| 	u32 boost_up;
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| 	u8  boost_57;
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| 	u8  boost_14;
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| 	u8  port_swap;
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| 	u8  port_map12;
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| 	u8  port_map34;
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| 	u8  port_map56;
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| 	u8  port_map7;
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| 	u8  status;
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| };
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| 
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| struct usb251xb_data {
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| 	u16 product_id;
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| 	u8 port_cnt;
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| 	bool led_support;
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| 	bool bat_support;
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| 	char product_str[USB251XB_STRING_BUFSIZE / 2]; /* ASCII string */
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| };
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| 
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| static const struct usb251xb_data usb2422_data = {
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| 	.product_id = 0x2422,
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| 	.port_cnt = 2,
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| 	.led_support = false,
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| 	.bat_support = true,
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| 	.product_str = "USB2422",
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| };
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| 
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| static const struct usb251xb_data usb2512b_data = {
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| 	.product_id = 0x2512,
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| 	.port_cnt = 2,
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| 	.led_support = false,
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| 	.bat_support = true,
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| 	.product_str = "USB2512B",
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| };
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| 
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| static const struct usb251xb_data usb2512bi_data = {
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| 	.product_id = 0x2512,
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| 	.port_cnt = 2,
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| 	.led_support = false,
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| 	.bat_support = true,
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| 	.product_str = "USB2512Bi",
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| };
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| 
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| static const struct usb251xb_data usb2513b_data = {
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| 	.product_id = 0x2513,
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| 	.port_cnt = 3,
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| 	.led_support = false,
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| 	.bat_support = true,
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| 	.product_str = "USB2513B",
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| };
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| 
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| static const struct usb251xb_data usb2513bi_data = {
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| 	.product_id = 0x2513,
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| 	.port_cnt = 3,
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| 	.led_support = false,
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| 	.bat_support = true,
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| 	.product_str = "USB2513Bi",
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| };
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| 
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| static const struct usb251xb_data usb2514b_data = {
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| 	.product_id = 0x2514,
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| 	.port_cnt = 4,
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| 	.led_support = false,
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| 	.bat_support = true,
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| 	.product_str = "USB2514B",
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| };
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| 
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| static const struct usb251xb_data usb2514bi_data = {
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| 	.product_id = 0x2514,
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| 	.port_cnt = 4,
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| 	.led_support = false,
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| 	.bat_support = true,
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| 	.product_str = "USB2514Bi",
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| };
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| 
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| static const struct usb251xb_data usb2517_data = {
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| 	.product_id = 0x2517,
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| 	.port_cnt = 7,
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| 	.led_support = true,
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| 	.bat_support = false,
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| 	.product_str = "USB2517",
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| };
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| 
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| static const struct usb251xb_data usb2517i_data = {
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| 	.product_id = 0x2517,
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| 	.port_cnt = 7,
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| 	.led_support = true,
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| 	.bat_support = false,
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| 	.product_str = "USB2517i",
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| };
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| 
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| static void usb251xb_reset(struct usb251xb *hub)
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| {
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| 	dm_gpio_set_value(&hub->gpio_reset, 1);
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| 	udelay(10);	/* >=1us RESET_N asserted */
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| 	dm_gpio_set_value(&hub->gpio_reset, 0);
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| 
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| 	/* wait for hub recovery/stabilization */
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| 	udelay(750);	/* >=500us after RESET_N deasserted */
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| }
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| 
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| static int usb251xb_connect(struct udevice *dev)
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| {
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| 	struct usb251xb *hub = dev_get_priv(dev);
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| 	char i2c_wb[USB251XB_I2C_REG_SZ];
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| 	int err, i;
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| 
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| 	memset(i2c_wb, 0, USB251XB_I2C_REG_SZ);
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| 
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| 	if (hub->skip_config) {
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| 		dev_info(dev, "Skip hub configuration, only attach.\n");
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| 		i2c_wb[0] = 0x01;
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| 		i2c_wb[1] = USB251XB_STATUS_COMMAND_ATTACH;
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| 
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| 		usb251xb_reset(hub);
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| 
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| 		err = dm_i2c_write(dev, USB251XB_ADDR_STATUS_COMMAND, i2c_wb, 2);
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| 		if (err) {
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| 			dev_err(dev, "attaching hub failed: %d\n", err);
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| 			return err;
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| 		}
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| 		return 0;
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| 	}
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| 
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| 	i2c_wb[USB251XB_ADDR_VENDOR_ID_MSB]     = (hub->vendor_id >> 8) & 0xFF;
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| 	i2c_wb[USB251XB_ADDR_VENDOR_ID_LSB]     = hub->vendor_id & 0xFF;
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| 	i2c_wb[USB251XB_ADDR_PRODUCT_ID_MSB]    = (hub->product_id >> 8) & 0xFF;
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| 	i2c_wb[USB251XB_ADDR_PRODUCT_ID_LSB]    = hub->product_id & 0xFF;
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| 	i2c_wb[USB251XB_ADDR_DEVICE_ID_MSB]     = (hub->device_id >> 8) & 0xFF;
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| 	i2c_wb[USB251XB_ADDR_DEVICE_ID_LSB]     = hub->device_id & 0xFF;
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| 	i2c_wb[USB251XB_ADDR_CONFIG_DATA_1]     = hub->conf_data1;
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| 	i2c_wb[USB251XB_ADDR_CONFIG_DATA_2]     = hub->conf_data2;
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| 	i2c_wb[USB251XB_ADDR_CONFIG_DATA_3]     = hub->conf_data3;
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| 	i2c_wb[USB251XB_ADDR_NON_REMOVABLE_DEVICES] = hub->non_rem_dev;
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| 	i2c_wb[USB251XB_ADDR_PORT_DISABLE_SELF] = hub->port_disable_sp;
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| 	i2c_wb[USB251XB_ADDR_PORT_DISABLE_BUS]  = hub->port_disable_bp;
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| 	i2c_wb[USB251XB_ADDR_MAX_POWER_SELF]    = hub->max_power_sp;
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| 	i2c_wb[USB251XB_ADDR_MAX_POWER_BUS]     = hub->max_power_bp;
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| 	i2c_wb[USB251XB_ADDR_MAX_CURRENT_SELF]  = hub->max_current_sp;
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| 	i2c_wb[USB251XB_ADDR_MAX_CURRENT_BUS]   = hub->max_current_bp;
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| 	i2c_wb[USB251XB_ADDR_POWER_ON_TIME]     = hub->power_on_time;
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| 	i2c_wb[USB251XB_ADDR_LANGUAGE_ID_HIGH]  = (hub->lang_id >> 8) & 0xFF;
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| 	i2c_wb[USB251XB_ADDR_LANGUAGE_ID_LOW]   = hub->lang_id & 0xFF;
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| 	i2c_wb[USB251XB_ADDR_MANUFACTURER_STRING_LEN] = hub->manufacturer_len;
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| 	i2c_wb[USB251XB_ADDR_PRODUCT_STRING_LEN]      = hub->product_len;
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| 	i2c_wb[USB251XB_ADDR_SERIAL_STRING_LEN]       = hub->serial_len;
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| 	memcpy(&i2c_wb[USB251XB_ADDR_MANUFACTURER_STRING], hub->manufacturer,
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| 	       USB251XB_STRING_BUFSIZE);
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| 	memcpy(&i2c_wb[USB251XB_ADDR_SERIAL_STRING], hub->serial,
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| 	       USB251XB_STRING_BUFSIZE);
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| 	memcpy(&i2c_wb[USB251XB_ADDR_PRODUCT_STRING], hub->product,
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| 	       USB251XB_STRING_BUFSIZE);
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| 	i2c_wb[USB251XB_ADDR_BATTERY_CHARGING_ENABLE] = hub->bat_charge_en;
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| 	i2c_wb[USB251XB_ADDR_BOOST_UP]          = hub->boost_up;
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| 	i2c_wb[USB251XB_ADDR_BOOST_57]          = hub->boost_57;
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| 	i2c_wb[USB251XB_ADDR_BOOST_14]          = hub->boost_14;
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| 	i2c_wb[USB251XB_ADDR_PORT_SWAP]         = hub->port_swap;
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| 	i2c_wb[USB251XB_ADDR_PORT_MAP_12]       = hub->port_map12;
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| 	i2c_wb[USB251XB_ADDR_PORT_MAP_34]       = hub->port_map34;
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| 	i2c_wb[USB251XB_ADDR_PORT_MAP_56]       = hub->port_map56;
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| 	i2c_wb[USB251XB_ADDR_PORT_MAP_7]        = hub->port_map7;
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| 	i2c_wb[USB251XB_ADDR_STATUS_COMMAND] = USB251XB_STATUS_COMMAND_ATTACH;
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| 
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| 	usb251xb_reset(hub);
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| 
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| 	/* write registers */
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| 	for (i = 0; i < (USB251XB_I2C_REG_SZ / USB251XB_I2C_WRITE_SZ); i++) {
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| 		int offset = i * USB251XB_I2C_WRITE_SZ;
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| 		char wbuf[USB251XB_I2C_WRITE_SZ + 1];
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| 
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| 		/* The first data byte transferred tells the hub how many data
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| 		 * bytes will follow (byte count).
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| 		 */
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| 		wbuf[0] = USB251XB_I2C_WRITE_SZ;
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| 		memcpy(&wbuf[1], &i2c_wb[offset], USB251XB_I2C_WRITE_SZ);
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| 
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| 		dev_dbg(dev, "writing %d byte block %d to 0x%02X\n",
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| 			USB251XB_I2C_WRITE_SZ, i, offset);
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| 
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| 		err = dm_i2c_write(dev, offset, wbuf, USB251XB_I2C_WRITE_SZ + 1);
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| 		if (err)
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| 			goto out_err;
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| 	}
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| 
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| 	dev_info(dev, "Hub configuration was successful.\n");
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| 	return 0;
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| 
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| out_err:
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| 	dev_err(dev, "configuring block %d failed: %d\n", i, err);
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| 	return err;
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| }
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| 
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| static int usb251xb_probe(struct udevice *dev)
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| {
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| 	struct usb251xb *hub = dev_get_priv(dev);
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| 	int err;
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| 
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| 	if (IS_ENABLED(CONFIG_DM_REGULATOR) && hub->vdd) {
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| 		err = regulator_set_enable(hub->vdd, true);
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| 		if (err)
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| 			return err;
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| 	}
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| 
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| 	err = usb251xb_connect(dev);
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| 	if (err) {
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| 		dev_err(dev, "Failed to connect hub (%d)\n", err);
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| 		return err;
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| 	}
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| 
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| 	dev_info(dev, "Hub probed successfully\n");
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| 
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| 	return 0;
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| }
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| 
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| static void usb251xb_get_ports_field(struct udevice *dev,
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| 				     const char *prop_name, u8 port_cnt,
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| 				     bool ds_only, u8 *fld)
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| {
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| 	u32 i, port;
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| 	int ret;
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| 
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| 	for (i = 0; i < port_cnt; i++) {
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| 		ret = dev_read_u32_index(dev, prop_name, i, &port);
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| 		if (ret)
 | |
| 			continue;
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| 		if (port >= ds_only ? 1 : 0 && port <= port_cnt)
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| 			*fld |= BIT(port);
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| 		else
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| 			dev_warn(dev, "port %u doesn't exist\n", port);
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| 	}
 | |
| }
 | |
| 
 | |
| static int usb251xb_of_to_plat(struct udevice *dev)
 | |
| {
 | |
| 	struct usb251xb_data *data =
 | |
| 		(struct usb251xb_data *)dev_get_driver_data(dev);
 | |
| 	struct usb251xb *hub = dev_get_priv(dev);
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| 	char str[USB251XB_STRING_BUFSIZE / 2];
 | |
| 	const char *cproperty_char;
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| 	u32 property_u32 = 0;
 | |
| 	int len, err;
 | |
| 
 | |
| 	if (dev_read_bool(dev, "skip-config"))
 | |
| 		hub->skip_config = 1;
 | |
| 	else
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| 		hub->skip_config = 0;
 | |
| 
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| 	err = gpio_request_by_name(dev, "reset-gpios", 0, &hub->gpio_reset,
 | |
| 				   GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
 | |
| 	if (err && err != -ENOENT) {
 | |
| 		dev_err(dev, "unable to request GPIO reset pin (%d)\n", err);
 | |
| 		return err;
 | |
| 	}
 | |
| 
 | |
| 	if (IS_ENABLED(CONFIG_DM_REGULATOR)) {
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| 		err = device_get_supply_regulator(dev, "vdd-supply",
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| 						  &hub->vdd);
 | |
| 		if (err && err != -ENOENT) {
 | |
| 			dev_err(dev, "Warning: cannot get power supply\n");
 | |
| 			return err;
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	hub->vendor_id = dev_read_u16_default(dev, "vendor-id",
 | |
| 					      USB251XB_DEF_VENDOR_ID);
 | |
| 
 | |
| 	hub->product_id = dev_read_u16_default(dev, "product-id",
 | |
| 					       data->product_id);
 | |
| 
 | |
| 	hub->device_id = dev_read_u16_default(dev, "device-id",
 | |
| 					      USB251XB_DEF_DEVICE_ID);
 | |
| 
 | |
| 	hub->conf_data1 = USB251XB_DEF_CONFIG_DATA_1;
 | |
| 	if (dev_read_bool(dev, "self-powered")) {
 | |
| 		hub->conf_data1 |= BIT(7);
 | |
| 
 | |
| 		/* Configure Over-Current sens when self-powered */
 | |
| 		hub->conf_data1 &= ~BIT(2);
 | |
| 		if (dev_read_bool(dev, "ganged-sensing"))
 | |
| 			hub->conf_data1 &= ~BIT(1);
 | |
| 		else if (dev_read_bool(dev, "individual-sensing"))
 | |
| 			hub->conf_data1 |= BIT(1);
 | |
| 	} else if (dev_read_bool(dev, "bus-powered")) {
 | |
| 		hub->conf_data1 &= ~BIT(7);
 | |
| 
 | |
| 		/* Disable Over-Current sense when bus-powered */
 | |
| 		hub->conf_data1 |= BIT(2);
 | |
| 	}
 | |
| 
 | |
| 	if (dev_read_bool(dev, "disable-hi-speed"))
 | |
| 		hub->conf_data1 |= BIT(5);
 | |
| 
 | |
| 	if (dev_read_bool(dev, "multi-tt"))
 | |
| 		hub->conf_data1 |= BIT(4);
 | |
| 	else if (dev_read_bool(dev, "single-tt"))
 | |
| 		hub->conf_data1 &= ~BIT(4);
 | |
| 
 | |
| 	if (dev_read_bool(dev, "disable-eop"))
 | |
| 		hub->conf_data1 |= BIT(3);
 | |
| 
 | |
| 	if (dev_read_bool(dev, "individual-port-switching"))
 | |
| 		hub->conf_data1 |= BIT(0);
 | |
| 	else if (dev_read_bool(dev, "ganged-port-switching"))
 | |
| 		hub->conf_data1 &= ~BIT(0);
 | |
| 
 | |
| 	hub->conf_data2 = USB251XB_DEF_CONFIG_DATA_2;
 | |
| 	if (dev_read_bool(dev, "dynamic-power-switching"))
 | |
| 		hub->conf_data2 |= BIT(7);
 | |
| 
 | |
| 	if (!dev_read_u32(dev, "oc-delay-us", &property_u32)) {
 | |
| 		if (property_u32 == 100) {
 | |
| 			/* 100 us*/
 | |
| 			hub->conf_data2 &= ~BIT(5);
 | |
| 			hub->conf_data2 &= ~BIT(4);
 | |
| 		} else if (property_u32 == 4000) {
 | |
| 			/* 4 ms */
 | |
| 			hub->conf_data2 &= ~BIT(5);
 | |
| 			hub->conf_data2 |= BIT(4);
 | |
| 		} else if (property_u32 == 16000) {
 | |
| 			/* 16 ms */
 | |
| 			hub->conf_data2 |= BIT(5);
 | |
| 			hub->conf_data2 |= BIT(4);
 | |
| 		} else {
 | |
| 			/* 8 ms (DEFAULT) */
 | |
| 			hub->conf_data2 |= BIT(5);
 | |
| 			hub->conf_data2 &= ~BIT(4);
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	if (dev_read_bool(dev, "compound-device"))
 | |
| 		hub->conf_data2 |= BIT(3);
 | |
| 
 | |
| 	hub->conf_data3 = USB251XB_DEF_CONFIG_DATA_3;
 | |
| 	if (dev_read_bool(dev, "port-mapping-mode"))
 | |
| 		hub->conf_data3 |= BIT(3);
 | |
| 
 | |
| 	if (data->led_support && dev_read_bool(dev, "led-usb-mode"))
 | |
| 		hub->conf_data3 &= ~BIT(1);
 | |
| 
 | |
| 	if (dev_read_bool(dev, "string-support"))
 | |
| 		hub->conf_data3 |= BIT(0);
 | |
| 
 | |
| 	hub->non_rem_dev = USB251XB_DEF_NON_REMOVABLE_DEVICES;
 | |
| 	usb251xb_get_ports_field(dev, "non-removable-ports", data->port_cnt,
 | |
| 				 true, &hub->non_rem_dev);
 | |
| 
 | |
| 	hub->port_disable_sp = USB251XB_DEF_PORT_DISABLE_SELF;
 | |
| 	usb251xb_get_ports_field(dev, "sp-disabled-ports", data->port_cnt,
 | |
| 				 true, &hub->port_disable_sp);
 | |
| 
 | |
| 	hub->port_disable_bp = USB251XB_DEF_PORT_DISABLE_BUS;
 | |
| 	usb251xb_get_ports_field(dev, "bp-disabled-ports", data->port_cnt,
 | |
| 				 true, &hub->port_disable_bp);
 | |
| 
 | |
| 	hub->max_power_sp = USB251XB_DEF_MAX_POWER_SELF;
 | |
| 	if (!dev_read_u32(dev, "sp-max-total-current-microamp", &property_u32))
 | |
| 		hub->max_power_sp = min_t(u8, property_u32 / 2000, 50);
 | |
| 
 | |
| 	hub->max_power_bp = USB251XB_DEF_MAX_POWER_BUS;
 | |
| 	if (!dev_read_u32(dev, "bp-max-total-current-microamp", &property_u32))
 | |
| 		hub->max_power_bp = min_t(u8, property_u32 / 2000, 255);
 | |
| 
 | |
| 	hub->max_current_sp = USB251XB_DEF_MAX_CURRENT_SELF;
 | |
| 	if (!dev_read_u32(dev, "sp-max-removable-current-microamp",
 | |
| 			  &property_u32))
 | |
| 		hub->max_current_sp = min_t(u8, property_u32 / 2000, 50);
 | |
| 
 | |
| 	hub->max_current_bp = USB251XB_DEF_MAX_CURRENT_BUS;
 | |
| 	if (!dev_read_u32(dev, "bp-max-removable-current-microamp",
 | |
| 			  &property_u32))
 | |
| 		hub->max_current_bp = min_t(u8, property_u32 / 2000, 255);
 | |
| 
 | |
| 	hub->power_on_time = USB251XB_DEF_POWER_ON_TIME;
 | |
| 	if (!dev_read_u32(dev, "power-on-time-ms", &property_u32))
 | |
| 		hub->power_on_time = min_t(u8, property_u32 / 2, 255);
 | |
| 
 | |
| 	hub->lang_id = dev_read_u16_default(dev, "language-id",
 | |
| 					    USB251XB_DEF_LANGUAGE_ID);
 | |
| 
 | |
| 	hub->boost_up = dev_read_u8_default(dev, "boost-up",
 | |
| 					    USB251XB_DEF_BOOST_UP);
 | |
| 
 | |
| 	cproperty_char = dev_read_string(dev, "manufacturer");
 | |
| 	strlcpy(str, cproperty_char ? : USB251XB_DEF_MANUFACTURER_STRING,
 | |
| 		sizeof(str));
 | |
| 	hub->manufacturer_len = strlen(str) & 0xFF;
 | |
| 	memset(hub->manufacturer, 0, USB251XB_STRING_BUFSIZE);
 | |
| 	len = min_t(size_t, USB251XB_STRING_BUFSIZE / 2, strlen(str));
 | |
| 	len = utf8_to_utf16le(str, hub->manufacturer, len);
 | |
| 
 | |
| 	cproperty_char = dev_read_string(dev, "product");
 | |
| 	strlcpy(str, cproperty_char ? : data->product_str, sizeof(str));
 | |
| 	hub->product_len = strlen(str) & 0xFF;
 | |
| 	memset(hub->product, 0, USB251XB_STRING_BUFSIZE);
 | |
| 	len = min_t(size_t, USB251XB_STRING_BUFSIZE / 2, strlen(str));
 | |
| 	len = utf8_to_utf16le(str, hub->product, len);
 | |
| 
 | |
| 	cproperty_char = dev_read_string(dev, "serial");
 | |
| 	strlcpy(str, cproperty_char ? : USB251XB_DEF_SERIAL_STRING,
 | |
| 		sizeof(str));
 | |
| 	hub->serial_len = strlen(str) & 0xFF;
 | |
| 	memset(hub->serial, 0, USB251XB_STRING_BUFSIZE);
 | |
| 	len = min_t(size_t, USB251XB_STRING_BUFSIZE / 2, strlen(str));
 | |
| 	len = utf8_to_utf16le(str, hub->serial, len);
 | |
| 
 | |
| 	/*
 | |
| 	 * The datasheet documents the register as 'Port Swap' but in real the
 | |
| 	 * register controls the USB DP/DM signal swapping for each port.
 | |
| 	 */
 | |
| 	hub->port_swap = USB251XB_DEF_PORT_SWAP;
 | |
| 	usb251xb_get_ports_field(dev, "swap-dx-lanes", data->port_cnt,
 | |
| 				 false, &hub->port_swap);
 | |
| 
 | |
| 	/* The following parameters are currently not exposed to devicetree, but
 | |
| 	 * may be as soon as needed.
 | |
| 	 */
 | |
| 	hub->bat_charge_en = USB251XB_DEF_BATTERY_CHARGING_ENABLE;
 | |
| 	hub->boost_57 = USB251XB_DEF_BOOST_57;
 | |
| 	hub->boost_14 = USB251XB_DEF_BOOST_14;
 | |
| 	hub->port_map12 = USB251XB_DEF_PORT_MAP_12;
 | |
| 	hub->port_map34 = USB251XB_DEF_PORT_MAP_34;
 | |
| 	hub->port_map56 = USB251XB_DEF_PORT_MAP_56;
 | |
| 	hub->port_map7  = USB251XB_DEF_PORT_MAP_7;
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static const struct udevice_id usb251xb_of_match[] = {
 | |
| 	{
 | |
| 		.compatible = "microchip,usb2422",
 | |
| 		.data = (ulong)&usb2422_data,
 | |
| 	}, {
 | |
| 		.compatible = "microchip,usb2512b",
 | |
| 		.data = (ulong)&usb2512b_data,
 | |
| 	}, {
 | |
| 		.compatible = "microchip,usb2512bi",
 | |
| 		.data = (ulong)&usb2512bi_data,
 | |
| 	}, {
 | |
| 		.compatible = "microchip,usb2513b",
 | |
| 		.data = (ulong)&usb2513b_data,
 | |
| 	}, {
 | |
| 		.compatible = "microchip,usb2513bi",
 | |
| 		.data = (ulong)&usb2513bi_data,
 | |
| 	}, {
 | |
| 		.compatible = "microchip,usb2514b",
 | |
| 		.data = (ulong)&usb2514b_data,
 | |
| 	}, {
 | |
| 		.compatible = "microchip,usb2514bi",
 | |
| 		.data = (ulong)&usb2514bi_data,
 | |
| 	}, {
 | |
| 		.compatible = "microchip,usb2517",
 | |
| 		.data = (ulong)&usb2517_data,
 | |
| 	}, {
 | |
| 		.compatible = "microchip,usb2517i",
 | |
| 		.data = (ulong)&usb2517i_data,
 | |
| 	}
 | |
| };
 | |
| 
 | |
| U_BOOT_DRIVER(usb251xb) = {
 | |
| 	.name		= "usb251xb",
 | |
| 	.id		= UCLASS_MISC,
 | |
| 	.of_match	= usb251xb_of_match,
 | |
| 	.of_to_plat	= usb251xb_of_to_plat,
 | |
| 	.probe		= usb251xb_probe,
 | |
| 	.priv_auto	= sizeof(struct usb251xb),
 | |
| };
 |