1600 lines
38 KiB
C
1600 lines
38 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Driver for Analogix ANX7411 USB Type-C and PD controller
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*
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* Copyright(c) 2022, Analogix Semiconductor. All rights reserved.
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*
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*/
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#include <linux/gpio/consumer.h>
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#include <linux/i2c.h>
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#include <linux/interrupt.h>
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#include <linux/iopoll.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/mutex.h>
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#include <linux/of_graph.h>
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#include <linux/of_platform.h>
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#include <linux/pm_runtime.h>
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#include <linux/regulator/consumer.h>
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#include <linux/slab.h>
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#include <linux/types.h>
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#include <linux/usb/pd.h>
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#include <linux/usb/role.h>
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#include <linux/usb/tcpci.h>
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#include <linux/usb/typec.h>
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#include <linux/usb/typec_dp.h>
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#include <linux/usb/typec_mux.h>
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#include <linux/workqueue.h>
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#include <linux/power_supply.h>
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#define TCPC_ADDRESS1 0x58
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#define TCPC_ADDRESS2 0x56
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#define TCPC_ADDRESS3 0x54
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#define TCPC_ADDRESS4 0x52
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#define SPI_ADDRESS1 0x7e
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#define SPI_ADDRESS2 0x6e
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#define SPI_ADDRESS3 0x64
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#define SPI_ADDRESS4 0x62
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struct anx7411_i2c_select {
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u8 tcpc_address;
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u8 spi_address;
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};
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#define VID_ANALOGIX 0x1F29
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#define PID_ANALOGIX 0x7411
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/* TCPC register define */
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#define ANALOG_CTRL_10 0xAA
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#define STATUS_LEN 2
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#define ALERT_0 0xCB
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#define RECEIVED_MSG BIT(7)
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#define SOFTWARE_INT BIT(6)
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#define MSG_LEN 32
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#define HEADER_LEN 2
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#define MSG_HEADER 0x00
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#define MSG_TYPE 0x01
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#define MSG_RAWDATA 0x02
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#define MSG_LEN_MASK 0x1F
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#define ALERT_1 0xCC
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#define INTP_POW_ON BIT(7)
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#define INTP_POW_OFF BIT(6)
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#define VBUS_THRESHOLD_H 0xDD
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#define VBUS_THRESHOLD_L 0xDE
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#define FW_CTRL_0 0xF0
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#define UNSTRUCT_VDM_EN BIT(0)
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#define DELAY_200MS BIT(1)
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#define VSAFE0 0
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#define VSAFE1 BIT(2)
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#define VSAFE2 BIT(3)
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#define VSAFE3 (BIT(2) | BIT(3))
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#define FRS_EN BIT(7)
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#define FW_PARAM 0xF1
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#define DONGLE_IOP BIT(0)
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#define FW_CTRL_2 0xF7
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#define SINK_CTRL_DIS_FLAG BIT(5)
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/* SPI register define */
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#define OCM_CTRL_0 0x6E
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#define OCM_RESET BIT(6)
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#define MAX_VOLTAGE 0xAC
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#define MAX_POWER 0xAD
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#define MIN_POWER 0xAE
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#define REQUEST_VOLTAGE 0xAF
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#define VOLTAGE_UNIT 100 /* mV per unit */
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#define REQUEST_CURRENT 0xB1
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#define CURRENT_UNIT 50 /* mA per unit */
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#define CMD_SEND_BUF 0xC0
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#define CMD_RECV_BUF 0xE0
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#define REQ_VOL_20V_IN_100MV 0xC8
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#define REQ_CUR_2_25A_IN_50MA 0x2D
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#define REQ_CUR_3_25A_IN_50MA 0x41
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#define DEF_5V 5000
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#define DEF_1_5A 1500
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#define LOBYTE(w) ((u8)((w) & 0xFF))
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#define HIBYTE(w) ((u8)(((u16)(w) >> 8) & 0xFF))
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enum anx7411_typec_message_type {
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TYPE_SRC_CAP = 0x00,
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TYPE_SNK_CAP = 0x01,
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TYPE_SNK_IDENTITY = 0x02,
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TYPE_SVID = 0x03,
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TYPE_SET_SNK_DP_CAP = 0x08,
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TYPE_PSWAP_REQ = 0x10,
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TYPE_DSWAP_REQ = 0x11,
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TYPE_VDM = 0x14,
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TYPE_OBJ_REQ = 0x16,
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TYPE_DP_ALT_ENTER = 0x19,
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TYPE_DP_DISCOVER_MODES_INFO = 0x27,
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TYPE_GET_DP_CONFIG = 0x29,
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TYPE_DP_CONFIGURE = 0x2A,
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TYPE_GET_DP_DISCOVER_MODES_INFO = 0x2E,
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TYPE_GET_DP_ALT_ENTER = 0x2F,
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};
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#define FW_CTRL_1 0xB2
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#define AUTO_PD_EN BIT(1)
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#define TRYSRC_EN BIT(2)
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#define TRYSNK_EN BIT(3)
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#define FORCE_SEND_RDO BIT(6)
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#define FW_VER 0xB4
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#define FW_SUBVER 0xB5
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#define INT_MASK 0xB6
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#define INT_STS 0xB7
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#define OCM_BOOT_UP BIT(0)
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#define OC_OV_EVENT BIT(1)
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#define VCONN_CHANGE BIT(2)
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#define VBUS_CHANGE BIT(3)
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#define CC_STATUS_CHANGE BIT(4)
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#define DATA_ROLE_CHANGE BIT(5)
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#define PR_CONSUMER_GOT_POWER BIT(6)
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#define HPD_STATUS_CHANGE BIT(7)
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#define SYSTEM_STSTUS 0xB8
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/* 0: SINK off; 1: SINK on */
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#define SINK_STATUS BIT(1)
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/* 0: VCONN off; 1: VCONN on*/
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#define VCONN_STATUS BIT(2)
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/* 0: vbus off; 1: vbus on*/
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#define VBUS_STATUS BIT(3)
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/* 1: host; 0:device*/
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#define DATA_ROLE BIT(5)
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/* 0: Chunking; 1: Unchunked*/
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#define SUPPORT_UNCHUNKING BIT(6)
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/* 0: HPD low; 1: HPD high*/
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#define HPD_STATUS BIT(7)
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#define DATA_DFP 1
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#define DATA_UFP 2
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#define POWER_SOURCE 1
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#define POWER_SINK 2
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#define CC_STATUS 0xB9
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#define CC1_RD BIT(0)
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#define CC2_RD BIT(4)
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#define CC1_RA BIT(1)
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#define CC2_RA BIT(5)
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#define CC1_RD BIT(0)
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#define CC1_RP(cc) (((cc) >> 2) & 0x03)
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#define CC2_RP(cc) (((cc) >> 6) & 0x03)
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#define PD_REV_INIT 0xBA
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#define PD_EXT_MSG_CTRL 0xBB
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#define SRC_CAP_EXT_REPLY BIT(0)
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#define MANUFACTURER_INFO_REPLY BIT(1)
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#define BATTERY_STS_REPLY BIT(2)
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#define BATTERY_CAP_REPLY BIT(3)
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#define ALERT_REPLY BIT(4)
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#define STATUS_REPLY BIT(5)
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#define PPS_STATUS_REPLY BIT(6)
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#define SNK_CAP_EXT_REPLY BIT(7)
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#define NO_CONNECT 0x00
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#define USB3_1_CONNECTED 0x01
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#define DP_ALT_4LANES 0x02
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#define USB3_1_DP_2LANES 0x03
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#define CC1_CONNECTED 0x01
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#define CC2_CONNECTED 0x02
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#define SELECT_PIN_ASSIGMENT_C 0x04
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#define SELECT_PIN_ASSIGMENT_D 0x08
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#define SELECT_PIN_ASSIGMENT_E 0x10
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#define SELECT_PIN_ASSIGMENT_U 0x00
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#define REDRIVER_ADDRESS 0x20
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#define REDRIVER_OFFSET 0x00
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#define DP_SVID 0xFF01
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#define VDM_ACK 0x40
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#define VDM_CMD_RES 0x00
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#define VDM_CMD_DIS_ID 0x01
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#define VDM_CMD_DIS_SVID 0x02
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#define VDM_CMD_DIS_MOD 0x03
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#define VDM_CMD_ENTER_MODE 0x04
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#define VDM_CMD_EXIT_MODE 0x05
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#define VDM_CMD_ATTENTION 0x06
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#define VDM_CMD_GET_STS 0x10
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#define VDM_CMD_AND_ACK_MASK 0x5F
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#define MAX_ALTMODE 2
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#define HAS_SOURCE_CAP BIT(0)
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#define HAS_SINK_CAP BIT(1)
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#define HAS_SINK_WATT BIT(2)
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enum anx7411_psy_state {
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/* copy from drivers/usb/typec/tcpm */
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ANX7411_PSY_OFFLINE = 0,
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ANX7411_PSY_FIXED_ONLINE,
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/* private */
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/* PD keep in, but disconnct power to bq25700,
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* this state can be active when higher capacity adapter plug in,
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* and change to ONLINE state when higher capacity adapter plug out
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*/
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ANX7411_PSY_HANG = 0xff,
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};
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struct typec_params {
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int request_current; /* ma */
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int request_voltage; /* mv */
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int cc_connect;
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int cc_orientation_valid;
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int cc_status;
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int data_role;
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int power_role;
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int vconn_role;
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int dp_altmode_enter;
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int cust_altmode_enter;
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struct usb_role_switch *role_sw;
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struct typec_port *port;
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struct typec_partner *partner;
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struct typec_mux_dev *typec_mux;
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struct typec_switch_dev *typec_switch;
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struct typec_altmode *amode[MAX_ALTMODE];
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struct typec_altmode *port_amode[MAX_ALTMODE];
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struct typec_displayport_data data;
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int pin_assignment;
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struct typec_capability caps;
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u32 src_pdo[PDO_MAX_OBJECTS];
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u32 sink_pdo[PDO_MAX_OBJECTS];
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u8 caps_flags;
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u8 src_pdo_nr;
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u8 sink_pdo_nr;
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u8 sink_watt;
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u8 sink_voltage;
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};
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#define MAX_BUF_LEN 30
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struct fw_msg {
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u8 msg_len;
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u8 msg_type;
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u8 buf[MAX_BUF_LEN];
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} __packed;
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struct anx7411_data {
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int fw_version;
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int fw_subversion;
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struct i2c_client *tcpc_client;
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struct i2c_client *spi_client;
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struct fw_msg send_msg;
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struct fw_msg recv_msg;
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struct gpio_desc *intp_gpiod;
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struct fwnode_handle *connector_fwnode;
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struct typec_params typec;
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int intp_irq;
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struct work_struct work;
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struct workqueue_struct *workqueue;
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/* Lock for interrupt work queue */
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struct mutex lock;
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enum anx7411_psy_state psy_online;
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enum power_supply_usb_type usb_type;
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struct power_supply *psy;
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struct power_supply_desc psy_desc;
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struct device *dev;
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};
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static u8 snk_identity[] = {
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LOBYTE(VID_ANALOGIX), HIBYTE(VID_ANALOGIX), 0x00, 0x82, /* snk_id_hdr */
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0x00, 0x00, 0x00, 0x00, /* snk_cert */
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0x00, 0x00, LOBYTE(PID_ANALOGIX), HIBYTE(PID_ANALOGIX), /* 5snk_ama */
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};
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static u8 dp_caps[4] = {0xC6, 0x00, 0x00, 0x00};
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static int anx7411_reg_read(struct i2c_client *client,
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u8 reg_addr)
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{
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return i2c_smbus_read_byte_data(client, reg_addr);
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}
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static int anx7411_reg_block_read(struct i2c_client *client,
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u8 reg_addr, u8 len, u8 *buf)
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{
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return i2c_smbus_read_i2c_block_data(client, reg_addr, len, buf);
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}
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static int anx7411_reg_write(struct i2c_client *client,
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u8 reg_addr, u8 reg_val)
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{
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return i2c_smbus_write_byte_data(client, reg_addr, reg_val);
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}
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static int anx7411_reg_block_write(struct i2c_client *client,
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u8 reg_addr, u8 len, u8 *buf)
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{
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return i2c_smbus_write_i2c_block_data(client, reg_addr, len, buf);
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}
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static struct anx7411_i2c_select anx7411_i2c_addr[] = {
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{TCPC_ADDRESS1, SPI_ADDRESS1},
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{TCPC_ADDRESS2, SPI_ADDRESS2},
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{TCPC_ADDRESS3, SPI_ADDRESS3},
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{TCPC_ADDRESS4, SPI_ADDRESS4},
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};
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static int anx7411_detect_power_mode(struct anx7411_data *ctx)
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{
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int ret;
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int mode;
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ret = anx7411_reg_read(ctx->spi_client, REQUEST_CURRENT);
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if (ret < 0)
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return ret;
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ctx->typec.request_current = ret * CURRENT_UNIT; /* 50ma per unit */
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ret = anx7411_reg_read(ctx->spi_client, REQUEST_VOLTAGE);
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if (ret < 0)
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return ret;
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ctx->typec.request_voltage = ret * VOLTAGE_UNIT; /* 100mv per unit */
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if (ctx->psy_online == ANX7411_PSY_OFFLINE) {
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ctx->psy_online = ANX7411_PSY_FIXED_ONLINE;
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ctx->usb_type = POWER_SUPPLY_USB_TYPE_PD;
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power_supply_changed(ctx->psy);
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}
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if (!ctx->typec.cc_orientation_valid)
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return 0;
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if (ctx->typec.cc_connect == CC1_CONNECTED)
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mode = CC1_RP(ctx->typec.cc_status);
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else
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mode = CC2_RP(ctx->typec.cc_status);
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if (mode) {
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typec_set_pwr_opmode(ctx->typec.port, mode - 1);
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return 0;
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}
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typec_set_pwr_opmode(ctx->typec.port, TYPEC_PWR_MODE_PD);
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return 0;
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}
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static int anx7411_register_partner(struct anx7411_data *ctx,
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int pd, int accessory)
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{
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struct typec_partner_desc desc;
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struct typec_partner *partner;
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if (ctx->typec.partner)
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return 0;
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desc.usb_pd = pd;
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desc.accessory = accessory;
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desc.identity = NULL;
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partner = typec_register_partner(ctx->typec.port, &desc);
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if (IS_ERR(partner))
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return PTR_ERR(partner);
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ctx->typec.partner = partner;
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return 0;
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}
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static int anx7411_detect_cc_orientation(struct anx7411_data *ctx)
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{
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struct device *dev = &ctx->spi_client->dev;
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int ret;
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int cc1_rd, cc2_rd;
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int cc1_ra, cc2_ra;
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int cc1_rp, cc2_rp;
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ret = anx7411_reg_read(ctx->spi_client, CC_STATUS);
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if (ret < 0)
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return ret;
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ctx->typec.cc_status = ret;
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cc1_rd = ret & CC1_RD ? 1 : 0;
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cc2_rd = ret & CC2_RD ? 1 : 0;
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cc1_ra = ret & CC1_RA ? 1 : 0;
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cc2_ra = ret & CC2_RA ? 1 : 0;
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cc1_rp = CC1_RP(ret);
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cc2_rp = CC2_RP(ret);
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/* Debug cable, nothing to do */
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if (cc1_rd && cc2_rd) {
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ctx->typec.cc_orientation_valid = 0;
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return anx7411_register_partner(ctx, 0, TYPEC_ACCESSORY_DEBUG);
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}
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if (cc1_ra && cc2_ra) {
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ctx->typec.cc_orientation_valid = 0;
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return anx7411_register_partner(ctx, 0, TYPEC_ACCESSORY_AUDIO);
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}
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ctx->typec.cc_orientation_valid = 1;
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ret = anx7411_register_partner(ctx, 1, TYPEC_ACCESSORY_NONE);
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if (ret) {
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dev_err(dev, "register partner\n");
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return ret;
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}
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if (cc1_rd || cc1_rp) {
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typec_set_orientation(ctx->typec.port, TYPEC_ORIENTATION_NORMAL);
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ctx->typec.cc_connect = CC1_CONNECTED;
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}
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if (cc2_rd || cc2_rp) {
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typec_set_orientation(ctx->typec.port, TYPEC_ORIENTATION_REVERSE);
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ctx->typec.cc_connect = CC2_CONNECTED;
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}
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return 0;
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}
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static int anx7411_set_mux(struct anx7411_data *ctx, int pin_assignment)
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{
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int mode = TYPEC_STATE_SAFE;
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switch (pin_assignment) {
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case SELECT_PIN_ASSIGMENT_U:
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/* default 4 line USB 3.1 */
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mode = TYPEC_STATE_MODAL;
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break;
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case SELECT_PIN_ASSIGMENT_C:
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case SELECT_PIN_ASSIGMENT_E:
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/* 4 line DP */
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mode = TYPEC_STATE_SAFE;
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break;
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case SELECT_PIN_ASSIGMENT_D:
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/* 2 line DP, 2 line USB */
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mode = TYPEC_MODE_USB3;
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break;
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default:
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mode = TYPEC_STATE_SAFE;
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break;
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}
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ctx->typec.pin_assignment = pin_assignment;
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return typec_set_mode(ctx->typec.port, mode);
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}
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static int anx7411_set_usb_role(struct anx7411_data *ctx, enum usb_role role)
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{
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if (!ctx->typec.role_sw)
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return 0;
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return usb_role_switch_set_role(ctx->typec.role_sw, role);
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}
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static int anx7411_data_role_detect(struct anx7411_data *ctx)
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{
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int ret;
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ret = anx7411_reg_read(ctx->spi_client, SYSTEM_STSTUS);
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if (ret < 0)
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return ret;
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ctx->typec.data_role = (ret & DATA_ROLE) ? TYPEC_HOST : TYPEC_DEVICE;
|
|
ctx->typec.vconn_role = (ret & VCONN_STATUS) ? TYPEC_SOURCE : TYPEC_SINK;
|
|
|
|
typec_set_data_role(ctx->typec.port, ctx->typec.data_role);
|
|
|
|
typec_set_vconn_role(ctx->typec.port, ctx->typec.vconn_role);
|
|
|
|
if (ctx->typec.data_role == TYPEC_HOST)
|
|
return anx7411_set_usb_role(ctx, USB_ROLE_HOST);
|
|
|
|
return anx7411_set_usb_role(ctx, USB_ROLE_DEVICE);
|
|
}
|
|
|
|
static int anx7411_power_role_detect(struct anx7411_data *ctx)
|
|
{
|
|
int ret;
|
|
|
|
ret = anx7411_reg_read(ctx->spi_client, SYSTEM_STSTUS);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ctx->typec.power_role = (ret & SINK_STATUS) ? TYPEC_SINK : TYPEC_SOURCE;
|
|
|
|
if (ctx->typec.power_role == TYPEC_SOURCE) {
|
|
ctx->typec.request_current = DEF_1_5A;
|
|
ctx->typec.request_voltage = DEF_5V;
|
|
}
|
|
|
|
typec_set_pwr_role(ctx->typec.port, ctx->typec.power_role);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int anx7411_cc_status_detect(struct anx7411_data *ctx)
|
|
{
|
|
anx7411_detect_cc_orientation(ctx);
|
|
anx7411_detect_power_mode(ctx);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void anx7411_partner_unregister_altmode(struct anx7411_data *ctx)
|
|
{
|
|
int i;
|
|
|
|
ctx->typec.dp_altmode_enter = 0;
|
|
ctx->typec.cust_altmode_enter = 0;
|
|
|
|
for (i = 0; i < MAX_ALTMODE; i++)
|
|
if (ctx->typec.amode[i]) {
|
|
typec_unregister_altmode(ctx->typec.amode[i]);
|
|
ctx->typec.amode[i] = NULL;
|
|
}
|
|
|
|
ctx->typec.pin_assignment = 0;
|
|
}
|
|
|
|
static int anx7411_typec_register_altmode(struct anx7411_data *ctx,
|
|
int svid, int vdo)
|
|
{
|
|
struct device *dev = &ctx->spi_client->dev;
|
|
struct typec_altmode_desc desc;
|
|
int err;
|
|
int i;
|
|
|
|
desc.svid = svid;
|
|
desc.vdo = vdo;
|
|
|
|
for (i = 0; i < MAX_ALTMODE; i++)
|
|
if (!ctx->typec.amode[i])
|
|
break;
|
|
|
|
desc.mode = i + 1; /* start with 1 */
|
|
|
|
if (i >= MAX_ALTMODE) {
|
|
dev_err(dev, "no altmode space for registering\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
ctx->typec.amode[i] = typec_partner_register_altmode(ctx->typec.partner,
|
|
&desc);
|
|
if (IS_ERR(ctx->typec.amode[i])) {
|
|
dev_err(dev, "failed to register altmode\n");
|
|
err = PTR_ERR(ctx->typec.amode[i]);
|
|
ctx->typec.amode[i] = NULL;
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void anx7411_unregister_partner(struct anx7411_data *ctx)
|
|
{
|
|
if (ctx->typec.partner) {
|
|
typec_unregister_partner(ctx->typec.partner);
|
|
ctx->typec.partner = NULL;
|
|
}
|
|
}
|
|
|
|
static int anx7411_update_altmode(struct anx7411_data *ctx, int svid)
|
|
{
|
|
int i;
|
|
|
|
if (svid == DP_SVID)
|
|
ctx->typec.dp_altmode_enter = 1;
|
|
else
|
|
ctx->typec.cust_altmode_enter = 1;
|
|
|
|
for (i = 0; i < MAX_ALTMODE; i++) {
|
|
if (!ctx->typec.amode[i])
|
|
continue;
|
|
|
|
if (ctx->typec.amode[i]->svid == svid) {
|
|
typec_altmode_update_active(ctx->typec.amode[i], true);
|
|
typec_altmode_notify(ctx->typec.amode[i],
|
|
ctx->typec.pin_assignment,
|
|
&ctx->typec.data);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int anx7411_register_altmode(struct anx7411_data *ctx,
|
|
bool dp_altmode, u8 *buf)
|
|
{
|
|
int ret;
|
|
int svid;
|
|
int mid;
|
|
|
|
if (!ctx->typec.partner)
|
|
return 0;
|
|
|
|
svid = DP_SVID;
|
|
if (dp_altmode) {
|
|
mid = buf[0] | (buf[1] << 8) | (buf[2] << 16) | (buf[3] << 24);
|
|
|
|
return anx7411_typec_register_altmode(ctx, svid, mid);
|
|
}
|
|
|
|
svid = (buf[3] << 8) | buf[2];
|
|
if ((buf[0] & VDM_CMD_AND_ACK_MASK) != (VDM_ACK | VDM_CMD_ENTER_MODE))
|
|
return anx7411_update_altmode(ctx, svid);
|
|
|
|
if ((buf[0] & VDM_CMD_AND_ACK_MASK) != (VDM_ACK | VDM_CMD_DIS_MOD))
|
|
return 0;
|
|
|
|
mid = buf[4] | (buf[5] << 8) | (buf[6] << 16) | (buf[7] << 24);
|
|
|
|
ret = anx7411_typec_register_altmode(ctx, svid, mid);
|
|
if (ctx->typec.cust_altmode_enter)
|
|
ret |= anx7411_update_altmode(ctx, svid);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int anx7411_parse_cmd(struct anx7411_data *ctx, u8 type, u8 *buf, u8 len)
|
|
{
|
|
struct device *dev = &ctx->spi_client->dev;
|
|
u8 cur_50ma, vol_100mv;
|
|
|
|
switch (type) {
|
|
case TYPE_SRC_CAP:
|
|
cur_50ma = anx7411_reg_read(ctx->spi_client, REQUEST_CURRENT);
|
|
vol_100mv = anx7411_reg_read(ctx->spi_client, REQUEST_VOLTAGE);
|
|
|
|
ctx->typec.request_voltage = vol_100mv * VOLTAGE_UNIT;
|
|
ctx->typec.request_current = cur_50ma * CURRENT_UNIT;
|
|
|
|
ctx->psy_online = ANX7411_PSY_FIXED_ONLINE;
|
|
ctx->usb_type = POWER_SUPPLY_USB_TYPE_PD;
|
|
power_supply_changed(ctx->psy);
|
|
break;
|
|
case TYPE_SNK_CAP:
|
|
break;
|
|
case TYPE_SVID:
|
|
break;
|
|
case TYPE_SNK_IDENTITY:
|
|
break;
|
|
case TYPE_GET_DP_ALT_ENTER:
|
|
/* DP alt mode enter success */
|
|
if (buf[0])
|
|
anx7411_update_altmode(ctx, DP_SVID);
|
|
break;
|
|
case TYPE_DP_ALT_ENTER:
|
|
/* Update DP altmode */
|
|
anx7411_update_altmode(ctx, DP_SVID);
|
|
break;
|
|
case TYPE_OBJ_REQ:
|
|
anx7411_detect_power_mode(ctx);
|
|
break;
|
|
case TYPE_DP_CONFIGURE:
|
|
anx7411_set_mux(ctx, buf[1]);
|
|
break;
|
|
case TYPE_DP_DISCOVER_MODES_INFO:
|
|
/* Make sure discover modes valid */
|
|
if (buf[0] | buf[1])
|
|
/* Register DP Altmode */
|
|
anx7411_register_altmode(ctx, 1, buf);
|
|
break;
|
|
case TYPE_VDM:
|
|
/* Register other altmode */
|
|
anx7411_register_altmode(ctx, 0, buf);
|
|
break;
|
|
default:
|
|
dev_err(dev, "ignore message(0x%.02x).\n", type);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static u8 checksum(struct device *dev, u8 *buf, u8 len)
|
|
{
|
|
u8 ret = 0;
|
|
u8 i;
|
|
|
|
for (i = 0; i < len; i++)
|
|
ret += buf[i];
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int anx7411_read_msg_ctrl_status(struct i2c_client *client)
|
|
{
|
|
return anx7411_reg_read(client, CMD_SEND_BUF);
|
|
}
|
|
|
|
static int anx7411_wait_msg_empty(struct i2c_client *client)
|
|
{
|
|
int val;
|
|
|
|
return readx_poll_timeout(anx7411_read_msg_ctrl_status,
|
|
client, val, (val < 0) || (val == 0),
|
|
2000, 2000 * 150);
|
|
}
|
|
|
|
static int anx7411_send_msg(struct anx7411_data *ctx, u8 type, u8 *buf, u8 size)
|
|
{
|
|
struct device *dev = &ctx->spi_client->dev;
|
|
struct fw_msg *msg = &ctx->send_msg;
|
|
u8 crc;
|
|
int ret;
|
|
|
|
size = min_t(u8, size, (u8)MAX_BUF_LEN);
|
|
memcpy(msg->buf, buf, size);
|
|
msg->msg_type = type;
|
|
/* msg len equals buffer length + msg_type */
|
|
msg->msg_len = size + 1;
|
|
|
|
/* Do CRC check for all buffer data and msg_len and msg_type */
|
|
crc = checksum(dev, (u8 *)msg, size + HEADER_LEN);
|
|
msg->buf[size] = 0 - crc;
|
|
|
|
ret = anx7411_wait_msg_empty(ctx->spi_client);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = anx7411_reg_block_write(ctx->spi_client,
|
|
CMD_SEND_BUF + 1, size + HEADER_LEN,
|
|
&msg->msg_type);
|
|
ret |= anx7411_reg_write(ctx->spi_client, CMD_SEND_BUF,
|
|
msg->msg_len);
|
|
return ret;
|
|
}
|
|
|
|
static int anx7411_process_cmd(struct anx7411_data *ctx)
|
|
{
|
|
struct device *dev = &ctx->spi_client->dev;
|
|
struct fw_msg *msg = &ctx->recv_msg;
|
|
u8 len;
|
|
u8 crc;
|
|
int ret;
|
|
|
|
/* Read message from firmware */
|
|
ret = anx7411_reg_block_read(ctx->spi_client, CMD_RECV_BUF,
|
|
MSG_LEN, (u8 *)msg);
|
|
if (ret < 0)
|
|
return 0;
|
|
|
|
if (!msg->msg_len)
|
|
return 0;
|
|
|
|
ret = anx7411_reg_write(ctx->spi_client, CMD_RECV_BUF, 0);
|
|
if (ret)
|
|
return ret;
|
|
|
|
len = msg->msg_len & MSG_LEN_MASK;
|
|
crc = checksum(dev, (u8 *)msg, len + HEADER_LEN);
|
|
if (crc) {
|
|
dev_err(dev, "message error crc(0x%.02x)\n", crc);
|
|
return -ERANGE;
|
|
}
|
|
|
|
return anx7411_parse_cmd(ctx, msg->msg_type, msg->buf, len - 1);
|
|
}
|
|
|
|
static void anx7411_translate_payload(struct device *dev, __le32 *payload,
|
|
u32 *pdo, int nr, const char *type)
|
|
{
|
|
int i;
|
|
|
|
if (nr > PDO_MAX_OBJECTS) {
|
|
dev_err(dev, "nr(%d) exceed PDO_MAX_OBJECTS(%d)\n",
|
|
nr, PDO_MAX_OBJECTS);
|
|
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < nr; i++)
|
|
payload[i] = cpu_to_le32(pdo[i]);
|
|
}
|
|
|
|
static int anx7411_config(struct anx7411_data *ctx)
|
|
{
|
|
struct device *dev = &ctx->spi_client->dev;
|
|
struct typec_params *typecp = &ctx->typec;
|
|
__le32 payload[PDO_MAX_OBJECTS];
|
|
int ret;
|
|
|
|
/* Config PD FW work under PD 2.0 */
|
|
ret = anx7411_reg_write(ctx->spi_client, PD_REV_INIT, PD_REV20);
|
|
ret |= anx7411_reg_write(ctx->tcpc_client, FW_CTRL_0,
|
|
UNSTRUCT_VDM_EN | DELAY_200MS |
|
|
VSAFE1 | FRS_EN);
|
|
ret |= anx7411_reg_write(ctx->spi_client, FW_CTRL_1,
|
|
AUTO_PD_EN | FORCE_SEND_RDO);
|
|
|
|
/* Set VBUS current threshold */
|
|
ret |= anx7411_reg_write(ctx->tcpc_client, VBUS_THRESHOLD_H, 0xff);
|
|
ret |= anx7411_reg_write(ctx->tcpc_client, VBUS_THRESHOLD_L, 0x03);
|
|
|
|
/* Fix dongle compatible issue */
|
|
ret |= anx7411_reg_write(ctx->tcpc_client, FW_PARAM,
|
|
anx7411_reg_read(ctx->tcpc_client, FW_PARAM) |
|
|
DONGLE_IOP);
|
|
ret |= anx7411_reg_write(ctx->spi_client, INT_MASK, 0);
|
|
|
|
ret |= anx7411_reg_write(ctx->spi_client, PD_EXT_MSG_CTRL, 0xFF);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (typecp->caps_flags & HAS_SOURCE_CAP) {
|
|
anx7411_translate_payload(dev, payload, typecp->src_pdo,
|
|
typecp->src_pdo_nr, "source");
|
|
anx7411_send_msg(ctx, TYPE_SRC_CAP, (u8 *)&payload,
|
|
typecp->src_pdo_nr * 4);
|
|
anx7411_send_msg(ctx, TYPE_SNK_IDENTITY, snk_identity,
|
|
sizeof(snk_identity));
|
|
anx7411_send_msg(ctx, TYPE_SET_SNK_DP_CAP, dp_caps,
|
|
sizeof(dp_caps));
|
|
}
|
|
|
|
if (typecp->caps_flags & HAS_SINK_CAP) {
|
|
anx7411_translate_payload(dev, payload, typecp->sink_pdo,
|
|
typecp->sink_pdo_nr, "sink");
|
|
anx7411_send_msg(ctx, TYPE_SNK_CAP, (u8 *)&payload,
|
|
typecp->sink_pdo_nr * 4);
|
|
}
|
|
|
|
if (typecp->caps_flags & HAS_SINK_WATT) {
|
|
if (typecp->sink_watt) {
|
|
ret |= anx7411_reg_write(ctx->spi_client, MAX_POWER,
|
|
typecp->sink_watt);
|
|
/* Set min power to 1W */
|
|
ret |= anx7411_reg_write(ctx->spi_client, MIN_POWER, 2);
|
|
}
|
|
|
|
if (typecp->sink_voltage)
|
|
ret |= anx7411_reg_write(ctx->spi_client, MAX_VOLTAGE,
|
|
typecp->sink_voltage);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
if (!typecp->caps_flags)
|
|
usleep_range(5000, 6000);
|
|
|
|
ctx->fw_version = anx7411_reg_read(ctx->spi_client, FW_VER);
|
|
ctx->fw_subversion = anx7411_reg_read(ctx->spi_client, FW_SUBVER);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void anx7411_chip_standby(struct anx7411_data *ctx)
|
|
{
|
|
int ret;
|
|
u8 cc1, cc2;
|
|
struct device *dev = &ctx->spi_client->dev;
|
|
|
|
ret = anx7411_reg_write(ctx->spi_client, OCM_CTRL_0,
|
|
anx7411_reg_read(ctx->spi_client, OCM_CTRL_0) |
|
|
OCM_RESET);
|
|
ret |= anx7411_reg_write(ctx->tcpc_client, ANALOG_CTRL_10, 0x80);
|
|
/* Set TCPC to RD and DRP enable */
|
|
cc1 = TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_CC1_SHIFT;
|
|
cc2 = TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_CC2_SHIFT;
|
|
ret |= anx7411_reg_write(ctx->tcpc_client, TCPC_ROLE_CTRL,
|
|
TCPC_ROLE_CTRL_DRP | cc1 | cc2);
|
|
|
|
/* Send DRP toggle command */
|
|
ret |= anx7411_reg_write(ctx->tcpc_client, TCPC_COMMAND,
|
|
TCPC_CMD_LOOK4CONNECTION);
|
|
|
|
/* Send TCPC enter standby command */
|
|
ret |= anx7411_reg_write(ctx->tcpc_client,
|
|
TCPC_COMMAND, TCPC_CMD_I2C_IDLE);
|
|
if (ret)
|
|
dev_err(dev, "Chip standby failed\n");
|
|
}
|
|
|
|
static void anx7411_work_func(struct work_struct *work)
|
|
{
|
|
int ret;
|
|
u8 buf[STATUS_LEN];
|
|
u8 int_change; /* Interrupt change */
|
|
u8 int_status; /* Firmware status update */
|
|
u8 alert0, alert1; /* Interrupt alert source */
|
|
struct anx7411_data *ctx = container_of(work, struct anx7411_data, work);
|
|
struct device *dev = &ctx->spi_client->dev;
|
|
|
|
mutex_lock(&ctx->lock);
|
|
|
|
/* Read interrupt change status */
|
|
ret = anx7411_reg_block_read(ctx->spi_client, INT_STS, STATUS_LEN, buf);
|
|
if (ret < 0) {
|
|
/* Power standby mode, just return */
|
|
goto unlock;
|
|
}
|
|
int_change = buf[0];
|
|
int_status = buf[1];
|
|
|
|
/* Read alert register */
|
|
ret = anx7411_reg_block_read(ctx->tcpc_client, ALERT_0, STATUS_LEN, buf);
|
|
if (ret < 0)
|
|
goto unlock;
|
|
|
|
alert0 = buf[0];
|
|
alert1 = buf[1];
|
|
|
|
/* Clear interrupt and alert status */
|
|
ret = anx7411_reg_write(ctx->spi_client, INT_STS, 0);
|
|
ret |= anx7411_reg_write(ctx->tcpc_client, ALERT_0, alert0);
|
|
ret |= anx7411_reg_write(ctx->tcpc_client, ALERT_1, alert1);
|
|
if (ret)
|
|
goto unlock;
|
|
|
|
if (alert1 & INTP_POW_OFF) {
|
|
anx7411_partner_unregister_altmode(ctx);
|
|
if (anx7411_set_usb_role(ctx, USB_ROLE_NONE))
|
|
dev_err(dev, "Set usb role\n");
|
|
anx7411_unregister_partner(ctx);
|
|
ctx->psy_online = ANX7411_PSY_OFFLINE;
|
|
ctx->usb_type = POWER_SUPPLY_USB_TYPE_C;
|
|
ctx->typec.request_voltage = 0;
|
|
ctx->typec.request_current = 0;
|
|
power_supply_changed(ctx->psy);
|
|
anx7411_chip_standby(ctx);
|
|
goto unlock;
|
|
}
|
|
|
|
if ((alert0 & SOFTWARE_INT) && (int_change & OCM_BOOT_UP)) {
|
|
if (anx7411_config(ctx))
|
|
dev_err(dev, "Config failed\n");
|
|
if (anx7411_data_role_detect(ctx))
|
|
dev_err(dev, "set PD data role\n");
|
|
if (anx7411_power_role_detect(ctx))
|
|
dev_err(dev, "set PD power role\n");
|
|
anx7411_set_mux(ctx, SELECT_PIN_ASSIGMENT_C);
|
|
}
|
|
|
|
if (alert0 & RECEIVED_MSG)
|
|
anx7411_process_cmd(ctx);
|
|
|
|
ret = (int_status & DATA_ROLE) ? TYPEC_HOST : TYPEC_DEVICE;
|
|
if (ctx->typec.data_role != ret)
|
|
if (anx7411_data_role_detect(ctx))
|
|
dev_err(dev, "set PD data role\n");
|
|
|
|
ret = (int_status & SINK_STATUS) ? TYPEC_SINK : TYPEC_SOURCE;
|
|
if (ctx->typec.power_role != ret)
|
|
if (anx7411_power_role_detect(ctx))
|
|
dev_err(dev, "set PD power role\n");
|
|
|
|
if ((alert0 & SOFTWARE_INT) && (int_change & CC_STATUS_CHANGE))
|
|
anx7411_cc_status_detect(ctx);
|
|
|
|
unlock:
|
|
mutex_unlock(&ctx->lock);
|
|
}
|
|
|
|
static irqreturn_t anx7411_intr_isr(int irq, void *data)
|
|
{
|
|
struct anx7411_data *ctx = (struct anx7411_data *)data;
|
|
|
|
queue_work(ctx->workqueue, &ctx->work);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int anx7411_register_i2c_dummy_clients(struct anx7411_data *ctx,
|
|
struct i2c_client *client)
|
|
{
|
|
int i;
|
|
u8 spi_addr;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(anx7411_i2c_addr); i++) {
|
|
if (client->addr == (anx7411_i2c_addr[i].tcpc_address >> 1)) {
|
|
spi_addr = anx7411_i2c_addr[i].spi_address >> 1;
|
|
ctx->spi_client = i2c_new_dummy_device(client->adapter,
|
|
spi_addr);
|
|
if (!IS_ERR(ctx->spi_client))
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
dev_err(&client->dev, "unable to get SPI slave\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static void anx7411_port_unregister_altmodes(struct typec_altmode **adev)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < MAX_ALTMODE; i++)
|
|
if (adev[i]) {
|
|
typec_unregister_altmode(adev[i]);
|
|
adev[i] = NULL;
|
|
}
|
|
}
|
|
|
|
static int anx7411_usb_mux_set(struct typec_mux_dev *mux,
|
|
struct typec_mux_state *state)
|
|
{
|
|
struct anx7411_data *ctx = typec_mux_get_drvdata(mux);
|
|
struct device *dev = &ctx->spi_client->dev;
|
|
int has_dp;
|
|
|
|
has_dp = (state->alt && state->alt->svid == USB_TYPEC_DP_SID &&
|
|
state->alt->mode == USB_TYPEC_DP_MODE);
|
|
if (!has_dp)
|
|
dev_err(dev, "dp altmode not register\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int anx7411_usb_set_orientation(struct typec_switch_dev *sw,
|
|
enum typec_orientation orientation)
|
|
{
|
|
/* No need set */
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int anx7411_register_switch(struct anx7411_data *ctx,
|
|
struct device *dev,
|
|
struct fwnode_handle *fwnode)
|
|
{
|
|
struct typec_switch_desc sw_desc = { };
|
|
|
|
sw_desc.fwnode = fwnode;
|
|
sw_desc.drvdata = ctx;
|
|
sw_desc.name = fwnode_get_name(fwnode);
|
|
sw_desc.set = anx7411_usb_set_orientation;
|
|
|
|
ctx->typec.typec_switch = typec_switch_register(dev, &sw_desc);
|
|
if (IS_ERR(ctx->typec.typec_switch)) {
|
|
dev_err(dev, "switch register failed\n");
|
|
return PTR_ERR(ctx->typec.typec_switch);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int anx7411_register_mux(struct anx7411_data *ctx,
|
|
struct device *dev,
|
|
struct fwnode_handle *fwnode)
|
|
{
|
|
struct typec_mux_desc mux_desc = { };
|
|
|
|
mux_desc.fwnode = fwnode;
|
|
mux_desc.drvdata = ctx;
|
|
mux_desc.name = fwnode_get_name(fwnode);
|
|
mux_desc.set = anx7411_usb_mux_set;
|
|
|
|
ctx->typec.typec_mux = typec_mux_register(dev, &mux_desc);
|
|
if (IS_ERR(ctx->typec.typec_mux)) {
|
|
dev_err(dev, "mux register failed\n");
|
|
return PTR_ERR(ctx->typec.typec_mux);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void anx7411_unregister_mux(struct anx7411_data *ctx)
|
|
{
|
|
if (ctx->typec.typec_mux) {
|
|
typec_mux_unregister(ctx->typec.typec_mux);
|
|
ctx->typec.typec_mux = NULL;
|
|
}
|
|
}
|
|
|
|
static void anx7411_unregister_switch(struct anx7411_data *ctx)
|
|
{
|
|
if (ctx->typec.typec_switch) {
|
|
typec_switch_unregister(ctx->typec.typec_switch);
|
|
ctx->typec.typec_switch = NULL;
|
|
}
|
|
}
|
|
|
|
static int anx7411_typec_switch_probe(struct anx7411_data *ctx,
|
|
struct device *dev)
|
|
{
|
|
int ret;
|
|
struct device_node *node;
|
|
|
|
node = of_get_child_by_name(dev->of_node, "orientation_switch");
|
|
if (!node)
|
|
return 0;
|
|
|
|
ret = anx7411_register_switch(ctx, dev, &node->fwnode);
|
|
if (ret) {
|
|
dev_err(dev, "failed register switch");
|
|
return ret;
|
|
}
|
|
|
|
node = of_get_child_by_name(dev->of_node, "mode_switch");
|
|
if (!node) {
|
|
dev_err(dev, "no typec mux exist");
|
|
ret = -ENODEV;
|
|
goto unregister_switch;
|
|
}
|
|
|
|
ret = anx7411_register_mux(ctx, dev, &node->fwnode);
|
|
if (ret) {
|
|
dev_err(dev, "failed register mode switch");
|
|
ret = -ENODEV;
|
|
goto unregister_switch;
|
|
}
|
|
|
|
return 0;
|
|
|
|
unregister_switch:
|
|
anx7411_unregister_switch(ctx);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int anx7411_typec_port_probe(struct anx7411_data *ctx,
|
|
struct device *dev)
|
|
{
|
|
struct typec_capability *cap = &ctx->typec.caps;
|
|
struct typec_params *typecp = &ctx->typec;
|
|
struct fwnode_handle *fwnode;
|
|
const char *buf;
|
|
int ret, i;
|
|
|
|
fwnode = device_get_named_child_node(dev, "connector");
|
|
if (!fwnode)
|
|
return -EINVAL;
|
|
|
|
ret = fwnode_property_read_string(fwnode, "power-role", &buf);
|
|
if (ret) {
|
|
dev_err(dev, "power-role not found: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = typec_find_port_power_role(buf);
|
|
if (ret < 0)
|
|
return ret;
|
|
cap->type = ret;
|
|
|
|
ret = fwnode_property_read_string(fwnode, "data-role", &buf);
|
|
if (ret) {
|
|
dev_err(dev, "data-role not found: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = typec_find_port_data_role(buf);
|
|
if (ret < 0)
|
|
return ret;
|
|
cap->data = ret;
|
|
|
|
ret = fwnode_property_read_string(fwnode, "try-power-role", &buf);
|
|
if (ret) {
|
|
dev_err(dev, "try-power-role not found: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = typec_find_power_role(buf);
|
|
if (ret < 0)
|
|
return ret;
|
|
cap->prefer_role = ret;
|
|
|
|
/* Get source pdos */
|
|
ret = fwnode_property_count_u32(fwnode, "source-pdos");
|
|
if (ret > 0) {
|
|
typecp->src_pdo_nr = min_t(u8, ret, PDO_MAX_OBJECTS);
|
|
ret = fwnode_property_read_u32_array(fwnode, "source-pdos",
|
|
typecp->src_pdo,
|
|
typecp->src_pdo_nr);
|
|
if (ret < 0) {
|
|
dev_err(dev, "source cap validate failed: %d\n", ret);
|
|
return -EINVAL;
|
|
}
|
|
|
|
typecp->caps_flags |= HAS_SOURCE_CAP;
|
|
}
|
|
|
|
ret = fwnode_property_count_u32(fwnode, "sink-pdos");
|
|
if (ret > 0) {
|
|
typecp->sink_pdo_nr = min_t(u8, ret, PDO_MAX_OBJECTS);
|
|
ret = fwnode_property_read_u32_array(fwnode, "sink-pdos",
|
|
typecp->sink_pdo,
|
|
typecp->sink_pdo_nr);
|
|
if (ret < 0) {
|
|
dev_err(dev, "sink cap validate failed: %d\n", ret);
|
|
return -EINVAL;
|
|
}
|
|
|
|
for (i = 0; i < typecp->sink_pdo_nr; i++) {
|
|
ret = 0;
|
|
switch (pdo_type(typecp->sink_pdo[i])) {
|
|
case PDO_TYPE_FIXED:
|
|
ret = pdo_fixed_voltage(typecp->sink_pdo[i]);
|
|
break;
|
|
case PDO_TYPE_BATT:
|
|
case PDO_TYPE_VAR:
|
|
ret = pdo_max_voltage(typecp->sink_pdo[i]);
|
|
break;
|
|
case PDO_TYPE_APDO:
|
|
default:
|
|
ret = 0;
|
|
break;
|
|
}
|
|
|
|
/* 100mv per unit */
|
|
typecp->sink_voltage = max(5000, ret) / 100;
|
|
}
|
|
|
|
typecp->caps_flags |= HAS_SINK_CAP;
|
|
}
|
|
|
|
if (!fwnode_property_read_u32(fwnode, "op-sink-microwatt", &ret)) {
|
|
typecp->sink_watt = ret / 500000; /* 500mw per unit */
|
|
typecp->caps_flags |= HAS_SINK_WATT;
|
|
}
|
|
|
|
cap->fwnode = fwnode;
|
|
|
|
ctx->typec.role_sw = usb_role_switch_get(dev);
|
|
if (IS_ERR(ctx->typec.role_sw)) {
|
|
dev_err(dev, "USB role switch not found.\n");
|
|
ctx->typec.role_sw = NULL;
|
|
}
|
|
|
|
ctx->typec.port = typec_register_port(dev, cap);
|
|
if (IS_ERR(ctx->typec.port)) {
|
|
ret = PTR_ERR(ctx->typec.port);
|
|
ctx->typec.port = NULL;
|
|
dev_err(dev, "Failed to register type c port %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
typec_port_register_altmodes(ctx->typec.port, NULL, ctx,
|
|
ctx->typec.port_amode,
|
|
MAX_ALTMODE);
|
|
return 0;
|
|
}
|
|
|
|
static int anx7411_typec_check_connection(struct anx7411_data *ctx)
|
|
{
|
|
int ret;
|
|
|
|
ret = anx7411_reg_read(ctx->spi_client, FW_VER);
|
|
if (ret < 0)
|
|
return 0; /* No device attached in typec port */
|
|
|
|
/* Clear interrupt and alert status */
|
|
ret = anx7411_reg_write(ctx->spi_client, INT_STS, 0);
|
|
ret |= anx7411_reg_write(ctx->tcpc_client, ALERT_0, 0xFF);
|
|
ret |= anx7411_reg_write(ctx->tcpc_client, ALERT_1, 0xFF);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = anx7411_cc_status_detect(ctx);
|
|
ret |= anx7411_power_role_detect(ctx);
|
|
ret |= anx7411_data_role_detect(ctx);
|
|
ret |= anx7411_set_mux(ctx, SELECT_PIN_ASSIGMENT_C);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = anx7411_send_msg(ctx, TYPE_GET_DP_ALT_ENTER, NULL, 0);
|
|
ret |= anx7411_send_msg(ctx, TYPE_GET_DP_DISCOVER_MODES_INFO, NULL, 0);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int __maybe_unused anx7411_runtime_pm_suspend(struct device *dev)
|
|
{
|
|
struct anx7411_data *ctx = dev_get_drvdata(dev);
|
|
|
|
mutex_lock(&ctx->lock);
|
|
|
|
anx7411_partner_unregister_altmode(ctx);
|
|
|
|
if (ctx->typec.partner)
|
|
anx7411_unregister_partner(ctx);
|
|
|
|
mutex_unlock(&ctx->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __maybe_unused anx7411_runtime_pm_resume(struct device *dev)
|
|
{
|
|
struct anx7411_data *ctx = dev_get_drvdata(dev);
|
|
|
|
mutex_lock(&ctx->lock);
|
|
/* Detect PD connection */
|
|
if (anx7411_typec_check_connection(ctx))
|
|
dev_err(dev, "check connection");
|
|
|
|
mutex_unlock(&ctx->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct dev_pm_ops anx7411_pm_ops = {
|
|
SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
|
|
pm_runtime_force_resume)
|
|
SET_RUNTIME_PM_OPS(anx7411_runtime_pm_suspend,
|
|
anx7411_runtime_pm_resume, NULL)
|
|
};
|
|
|
|
static void anx7411_get_gpio_irq(struct anx7411_data *ctx)
|
|
{
|
|
struct device *dev = &ctx->tcpc_client->dev;
|
|
|
|
ctx->intp_gpiod = devm_gpiod_get_optional(dev, "interrupt", GPIOD_IN);
|
|
if (IS_ERR_OR_NULL(ctx->intp_gpiod)) {
|
|
dev_err(dev, "no interrupt gpio property\n");
|
|
return;
|
|
}
|
|
|
|
ctx->intp_irq = gpiod_to_irq(ctx->intp_gpiod);
|
|
if (ctx->intp_irq < 0)
|
|
dev_err(dev, "failed to get GPIO IRQ\n");
|
|
}
|
|
|
|
static enum power_supply_usb_type anx7411_psy_usb_types[] = {
|
|
POWER_SUPPLY_USB_TYPE_C,
|
|
POWER_SUPPLY_USB_TYPE_PD,
|
|
POWER_SUPPLY_USB_TYPE_PD_PPS,
|
|
};
|
|
|
|
static enum power_supply_property anx7411_psy_props[] = {
|
|
POWER_SUPPLY_PROP_USB_TYPE,
|
|
POWER_SUPPLY_PROP_ONLINE,
|
|
POWER_SUPPLY_PROP_VOLTAGE_MIN,
|
|
POWER_SUPPLY_PROP_VOLTAGE_MAX,
|
|
POWER_SUPPLY_PROP_VOLTAGE_NOW,
|
|
POWER_SUPPLY_PROP_CURRENT_MAX,
|
|
POWER_SUPPLY_PROP_CURRENT_NOW,
|
|
};
|
|
|
|
static int anx7411_psy_set_prop(struct power_supply *psy,
|
|
enum power_supply_property psp,
|
|
const union power_supply_propval *val)
|
|
{
|
|
struct anx7411_data *ctx = power_supply_get_drvdata(psy);
|
|
int ret = 0;
|
|
|
|
if (psp == POWER_SUPPLY_PROP_ONLINE)
|
|
ctx->psy_online = val->intval;
|
|
else
|
|
ret = -EINVAL;
|
|
|
|
power_supply_changed(ctx->psy);
|
|
return ret;
|
|
}
|
|
|
|
static int anx7411_psy_prop_writeable(struct power_supply *psy,
|
|
enum power_supply_property psp)
|
|
{
|
|
return psp == POWER_SUPPLY_PROP_ONLINE;
|
|
}
|
|
|
|
static int anx7411_psy_get_prop(struct power_supply *psy,
|
|
enum power_supply_property psp,
|
|
union power_supply_propval *val)
|
|
{
|
|
struct anx7411_data *ctx = power_supply_get_drvdata(psy);
|
|
int ret = 0;
|
|
|
|
switch (psp) {
|
|
case POWER_SUPPLY_PROP_USB_TYPE:
|
|
val->intval = ctx->usb_type;
|
|
break;
|
|
case POWER_SUPPLY_PROP_ONLINE:
|
|
val->intval = ctx->psy_online;
|
|
break;
|
|
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
|
|
case POWER_SUPPLY_PROP_VOLTAGE_MIN:
|
|
case POWER_SUPPLY_PROP_VOLTAGE_MAX:
|
|
val->intval = (ctx->psy_online) ?
|
|
ctx->typec.request_voltage * 1000 : 0;
|
|
break;
|
|
case POWER_SUPPLY_PROP_CURRENT_NOW:
|
|
case POWER_SUPPLY_PROP_CURRENT_MAX:
|
|
val->intval = (ctx->psy_online) ?
|
|
ctx->typec.request_current * 1000 : 0;
|
|
break;
|
|
default:
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int anx7411_psy_register(struct anx7411_data *ctx)
|
|
{
|
|
struct power_supply_desc *psy_desc = &ctx->psy_desc;
|
|
struct power_supply_config psy_cfg = {};
|
|
char *psy_name;
|
|
|
|
psy_name = devm_kasprintf(ctx->dev, GFP_KERNEL, "anx7411-source-psy-%s",
|
|
dev_name(ctx->dev));
|
|
if (!psy_name)
|
|
return -ENOMEM;
|
|
|
|
psy_desc->name = psy_name;
|
|
psy_desc->type = POWER_SUPPLY_TYPE_USB;
|
|
psy_desc->usb_types = anx7411_psy_usb_types;
|
|
psy_desc->num_usb_types = ARRAY_SIZE(anx7411_psy_usb_types);
|
|
psy_desc->properties = anx7411_psy_props;
|
|
psy_desc->num_properties = ARRAY_SIZE(anx7411_psy_props);
|
|
|
|
psy_desc->get_property = anx7411_psy_get_prop;
|
|
psy_desc->set_property = anx7411_psy_set_prop;
|
|
psy_desc->property_is_writeable = anx7411_psy_prop_writeable;
|
|
|
|
ctx->usb_type = POWER_SUPPLY_USB_TYPE_C;
|
|
ctx->psy = devm_power_supply_register(ctx->dev, psy_desc, &psy_cfg);
|
|
|
|
if (IS_ERR(ctx->psy))
|
|
dev_warn(ctx->dev, "unable to register psy\n");
|
|
|
|
return PTR_ERR_OR_ZERO(ctx->psy);
|
|
}
|
|
|
|
static int anx7411_i2c_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct anx7411_data *plat;
|
|
struct device *dev = &client->dev;
|
|
int ret;
|
|
|
|
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_I2C_BLOCK))
|
|
return -ENODEV;
|
|
|
|
plat = devm_kzalloc(dev, sizeof(*plat), GFP_KERNEL);
|
|
if (!plat)
|
|
return -ENOMEM;
|
|
|
|
plat->tcpc_client = client;
|
|
i2c_set_clientdata(client, plat);
|
|
|
|
mutex_init(&plat->lock);
|
|
|
|
ret = anx7411_register_i2c_dummy_clients(plat, client);
|
|
if (ret) {
|
|
dev_err(dev, "fail to reserve I2C bus\n");
|
|
return ret;
|
|
}
|
|
|
|
ret = anx7411_typec_switch_probe(plat, dev);
|
|
if (ret) {
|
|
dev_err(dev, "fail to probe typec switch\n");
|
|
goto free_i2c_dummy;
|
|
}
|
|
|
|
ret = anx7411_typec_port_probe(plat, dev);
|
|
if (ret) {
|
|
dev_err(dev, "fail to probe typec property.\n");
|
|
ret = -ENODEV;
|
|
goto free_typec_switch;
|
|
}
|
|
|
|
plat->intp_irq = client->irq;
|
|
if (!client->irq)
|
|
anx7411_get_gpio_irq(plat);
|
|
|
|
if (!plat->intp_irq) {
|
|
dev_err(dev, "fail to get interrupt IRQ\n");
|
|
ret = -EINVAL;
|
|
goto free_typec_port;
|
|
}
|
|
|
|
plat->dev = dev;
|
|
plat->psy_online = ANX7411_PSY_OFFLINE;
|
|
ret = anx7411_psy_register(plat);
|
|
if (ret) {
|
|
dev_err(dev, "register psy\n");
|
|
goto free_typec_port;
|
|
}
|
|
|
|
INIT_WORK(&plat->work, anx7411_work_func);
|
|
plat->workqueue = alloc_workqueue("anx7411_work",
|
|
WQ_FREEZABLE |
|
|
WQ_MEM_RECLAIM,
|
|
1);
|
|
if (!plat->workqueue) {
|
|
dev_err(dev, "fail to create work queue\n");
|
|
ret = -ENOMEM;
|
|
goto free_typec_port;
|
|
}
|
|
|
|
ret = devm_request_threaded_irq(dev, plat->intp_irq,
|
|
NULL, anx7411_intr_isr,
|
|
IRQF_TRIGGER_FALLING |
|
|
IRQF_ONESHOT,
|
|
"anx7411-intp", plat);
|
|
if (ret) {
|
|
dev_err(dev, "fail to request irq\n");
|
|
goto free_wq;
|
|
}
|
|
|
|
if (anx7411_typec_check_connection(plat))
|
|
dev_err(dev, "check status\n");
|
|
|
|
pm_runtime_enable(dev);
|
|
|
|
return 0;
|
|
|
|
free_wq:
|
|
destroy_workqueue(plat->workqueue);
|
|
|
|
free_typec_port:
|
|
typec_unregister_port(plat->typec.port);
|
|
anx7411_port_unregister_altmodes(plat->typec.port_amode);
|
|
|
|
free_typec_switch:
|
|
anx7411_unregister_switch(plat);
|
|
anx7411_unregister_mux(plat);
|
|
|
|
free_i2c_dummy:
|
|
i2c_unregister_device(plat->spi_client);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void anx7411_i2c_remove(struct i2c_client *client)
|
|
{
|
|
struct anx7411_data *plat = i2c_get_clientdata(client);
|
|
|
|
anx7411_partner_unregister_altmode(plat);
|
|
anx7411_unregister_partner(plat);
|
|
|
|
if (plat->workqueue)
|
|
destroy_workqueue(plat->workqueue);
|
|
|
|
if (plat->spi_client)
|
|
i2c_unregister_device(plat->spi_client);
|
|
|
|
if (plat->typec.role_sw)
|
|
usb_role_switch_put(plat->typec.role_sw);
|
|
|
|
anx7411_unregister_mux(plat);
|
|
|
|
anx7411_unregister_switch(plat);
|
|
|
|
if (plat->typec.port)
|
|
typec_unregister_port(plat->typec.port);
|
|
|
|
anx7411_port_unregister_altmodes(plat->typec.port_amode);
|
|
}
|
|
|
|
static const struct i2c_device_id anx7411_id[] = {
|
|
{"anx7411", 0},
|
|
{}
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(i2c, anx7411_id);
|
|
|
|
static const struct of_device_id anx_match_table[] = {
|
|
{.compatible = "analogix,anx7411",},
|
|
{},
|
|
};
|
|
|
|
static struct i2c_driver anx7411_driver = {
|
|
.driver = {
|
|
.name = "anx7411",
|
|
.of_match_table = anx_match_table,
|
|
.pm = &anx7411_pm_ops,
|
|
},
|
|
.probe = anx7411_i2c_probe,
|
|
.remove = anx7411_i2c_remove,
|
|
|
|
.id_table = anx7411_id,
|
|
};
|
|
|
|
module_i2c_driver(anx7411_driver);
|
|
|
|
MODULE_DESCRIPTION("Anx7411 USB Type-C PD driver");
|
|
MODULE_AUTHOR("Xin Ji <xji@analogixsemi.com>");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_VERSION("0.1.5");
|