654 lines
16 KiB
C
654 lines
16 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright 2017 IBM Corp.
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*/
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#include <linux/bitfield.h>
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#include <linux/bitops.h>
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#include <linux/debugfs.h>
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#include <linux/device.h>
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#include <linux/fs.h>
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#include <linux/i2c.h>
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#include <linux/jiffies.h>
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#include <linux/leds.h>
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#include <linux/module.h>
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#include <linux/mutex.h>
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#include <linux/of_device.h>
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#include <linux/pmbus.h>
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#include "pmbus.h"
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#define CFFPS_MFG_ID_CMD 0x99
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#define CFFPS_FRU_CMD 0x9A
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#define CFFPS_PN_CMD 0x9B
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#define CFFPS_HEADER_CMD 0x9C
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#define CFFPS_SN_CMD 0x9E
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#define CFFPS_MAX_POWER_OUT_CMD 0xA7
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#define CFFPS_CCIN_CMD 0xBD
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#define CFFPS_FW_CMD 0xFA
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#define CFFPS1_FW_NUM_BYTES 4
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#define CFFPS2_FW_NUM_WORDS 3
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#define CFFPS_SYS_CONFIG_CMD 0xDA
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#define CFFPS_12VCS_VOUT_CMD 0xDE
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#define CFFPS_INPUT_HISTORY_CMD 0xD6
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#define CFFPS_INPUT_HISTORY_SIZE 100
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#define CFFPS_CCIN_REVISION GENMASK(7, 0)
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#define CFFPS_CCIN_REVISION_LEGACY 0xde
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#define CFFPS_CCIN_VERSION GENMASK(15, 8)
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#define CFFPS_CCIN_VERSION_1 0x2b
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#define CFFPS_CCIN_VERSION_2 0x2e
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#define CFFPS_CCIN_VERSION_3 0x51
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/* STATUS_MFR_SPECIFIC bits */
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#define CFFPS_MFR_FAN_FAULT BIT(0)
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#define CFFPS_MFR_THERMAL_FAULT BIT(1)
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#define CFFPS_MFR_OV_FAULT BIT(2)
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#define CFFPS_MFR_UV_FAULT BIT(3)
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#define CFFPS_MFR_PS_KILL BIT(4)
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#define CFFPS_MFR_OC_FAULT BIT(5)
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#define CFFPS_MFR_VAUX_FAULT BIT(6)
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#define CFFPS_MFR_CURRENT_SHARE_WARNING BIT(7)
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#define CFFPS_LED_BLINK (BIT(0) | BIT(6))
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#define CFFPS_LED_ON (BIT(1) | BIT(6))
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#define CFFPS_LED_OFF (BIT(2) | BIT(6))
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#define CFFPS_BLINK_RATE_MS 250
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enum {
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CFFPS_DEBUGFS_INPUT_HISTORY = 0,
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CFFPS_DEBUGFS_MFG_ID,
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CFFPS_DEBUGFS_FRU,
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CFFPS_DEBUGFS_PN,
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CFFPS_DEBUGFS_HEADER,
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CFFPS_DEBUGFS_SN,
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CFFPS_DEBUGFS_MAX_POWER_OUT,
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CFFPS_DEBUGFS_CCIN,
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CFFPS_DEBUGFS_FW,
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CFFPS_DEBUGFS_ON_OFF_CONFIG,
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CFFPS_DEBUGFS_NUM_ENTRIES
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};
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enum versions { cffps1, cffps2, cffps_unknown };
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struct ibm_cffps_input_history {
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struct mutex update_lock;
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unsigned long last_update;
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u8 byte_count;
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u8 data[CFFPS_INPUT_HISTORY_SIZE];
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};
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struct ibm_cffps {
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enum versions version;
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struct i2c_client *client;
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struct ibm_cffps_input_history input_history;
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int debugfs_entries[CFFPS_DEBUGFS_NUM_ENTRIES];
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char led_name[32];
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u8 led_state;
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struct led_classdev led;
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};
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static const struct i2c_device_id ibm_cffps_id[];
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#define to_psu(x, y) container_of((x), struct ibm_cffps, debugfs_entries[(y)])
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static ssize_t ibm_cffps_read_input_history(struct ibm_cffps *psu,
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char __user *buf, size_t count,
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loff_t *ppos)
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{
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int rc;
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u8 msgbuf0[1] = { CFFPS_INPUT_HISTORY_CMD };
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u8 msgbuf1[CFFPS_INPUT_HISTORY_SIZE + 1] = { 0 };
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struct i2c_msg msg[2] = {
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{
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.addr = psu->client->addr,
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.flags = psu->client->flags,
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.len = 1,
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.buf = msgbuf0,
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}, {
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.addr = psu->client->addr,
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.flags = psu->client->flags | I2C_M_RD,
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.len = CFFPS_INPUT_HISTORY_SIZE + 1,
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.buf = msgbuf1,
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},
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};
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if (!*ppos) {
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mutex_lock(&psu->input_history.update_lock);
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if (time_after(jiffies, psu->input_history.last_update + HZ)) {
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/*
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* Use a raw i2c transfer, since we need more bytes
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* than Linux I2C supports through smbus xfr (only 32).
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*/
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rc = i2c_transfer(psu->client->adapter, msg, 2);
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if (rc < 0) {
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mutex_unlock(&psu->input_history.update_lock);
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return rc;
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}
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psu->input_history.byte_count = msgbuf1[0];
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memcpy(psu->input_history.data, &msgbuf1[1],
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CFFPS_INPUT_HISTORY_SIZE);
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psu->input_history.last_update = jiffies;
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}
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mutex_unlock(&psu->input_history.update_lock);
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}
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return simple_read_from_buffer(buf, count, ppos,
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psu->input_history.data,
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psu->input_history.byte_count);
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}
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static ssize_t ibm_cffps_debugfs_read(struct file *file, char __user *buf,
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size_t count, loff_t *ppos)
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{
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u8 cmd;
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int i, rc;
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int *idxp = file->private_data;
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int idx = *idxp;
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struct ibm_cffps *psu = to_psu(idxp, idx);
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char data[I2C_SMBUS_BLOCK_MAX + 2] = { 0 };
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pmbus_set_page(psu->client, 0, 0xff);
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switch (idx) {
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case CFFPS_DEBUGFS_INPUT_HISTORY:
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return ibm_cffps_read_input_history(psu, buf, count, ppos);
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case CFFPS_DEBUGFS_MFG_ID:
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cmd = CFFPS_MFG_ID_CMD;
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break;
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case CFFPS_DEBUGFS_FRU:
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cmd = CFFPS_FRU_CMD;
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break;
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case CFFPS_DEBUGFS_PN:
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cmd = CFFPS_PN_CMD;
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break;
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case CFFPS_DEBUGFS_HEADER:
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cmd = CFFPS_HEADER_CMD;
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break;
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case CFFPS_DEBUGFS_SN:
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cmd = CFFPS_SN_CMD;
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break;
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case CFFPS_DEBUGFS_MAX_POWER_OUT:
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if (psu->version == cffps1) {
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rc = i2c_smbus_read_word_swapped(psu->client,
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CFFPS_MAX_POWER_OUT_CMD);
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} else {
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rc = i2c_smbus_read_word_data(psu->client,
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CFFPS_MAX_POWER_OUT_CMD);
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}
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if (rc < 0)
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return rc;
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rc = snprintf(data, I2C_SMBUS_BLOCK_MAX, "%d", rc);
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goto done;
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case CFFPS_DEBUGFS_CCIN:
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rc = i2c_smbus_read_word_swapped(psu->client, CFFPS_CCIN_CMD);
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if (rc < 0)
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return rc;
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rc = snprintf(data, 5, "%04X", rc);
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goto done;
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case CFFPS_DEBUGFS_FW:
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switch (psu->version) {
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case cffps1:
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for (i = 0; i < CFFPS1_FW_NUM_BYTES; ++i) {
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rc = i2c_smbus_read_byte_data(psu->client,
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CFFPS_FW_CMD +
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i);
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if (rc < 0)
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return rc;
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snprintf(&data[i * 2], 3, "%02X", rc);
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}
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rc = i * 2;
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break;
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case cffps2:
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for (i = 0; i < CFFPS2_FW_NUM_WORDS; ++i) {
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rc = i2c_smbus_read_word_data(psu->client,
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CFFPS_FW_CMD +
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i);
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if (rc < 0)
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return rc;
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snprintf(&data[i * 4], 5, "%04X", rc);
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}
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rc = i * 4;
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break;
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default:
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return -EOPNOTSUPP;
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}
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goto done;
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case CFFPS_DEBUGFS_ON_OFF_CONFIG:
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rc = i2c_smbus_read_byte_data(psu->client,
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PMBUS_ON_OFF_CONFIG);
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if (rc < 0)
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return rc;
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rc = snprintf(data, 3, "%02x", rc);
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goto done;
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default:
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return -EINVAL;
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}
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rc = i2c_smbus_read_block_data(psu->client, cmd, data);
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if (rc < 0)
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return rc;
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done:
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data[rc] = '\n';
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rc += 2;
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return simple_read_from_buffer(buf, count, ppos, data, rc);
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}
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static ssize_t ibm_cffps_debugfs_write(struct file *file,
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const char __user *buf, size_t count,
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loff_t *ppos)
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{
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u8 data;
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ssize_t rc;
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int *idxp = file->private_data;
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int idx = *idxp;
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struct ibm_cffps *psu = to_psu(idxp, idx);
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switch (idx) {
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case CFFPS_DEBUGFS_ON_OFF_CONFIG:
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pmbus_set_page(psu->client, 0, 0xff);
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rc = simple_write_to_buffer(&data, 1, ppos, buf, count);
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if (rc <= 0)
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return rc;
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rc = i2c_smbus_write_byte_data(psu->client,
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PMBUS_ON_OFF_CONFIG, data);
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if (rc)
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return rc;
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rc = 1;
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break;
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default:
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return -EINVAL;
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}
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return rc;
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}
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static const struct file_operations ibm_cffps_fops = {
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.llseek = noop_llseek,
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.read = ibm_cffps_debugfs_read,
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.write = ibm_cffps_debugfs_write,
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.open = simple_open,
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};
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static int ibm_cffps_read_byte_data(struct i2c_client *client, int page,
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int reg)
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{
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int rc, mfr;
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switch (reg) {
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case PMBUS_STATUS_VOUT:
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case PMBUS_STATUS_IOUT:
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case PMBUS_STATUS_TEMPERATURE:
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case PMBUS_STATUS_FAN_12:
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rc = pmbus_read_byte_data(client, page, reg);
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if (rc < 0)
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return rc;
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mfr = pmbus_read_byte_data(client, page,
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PMBUS_STATUS_MFR_SPECIFIC);
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if (mfr < 0)
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/*
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* Return the status register instead of an error,
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* since we successfully read status.
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*/
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return rc;
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/* Add MFR_SPECIFIC bits to the standard pmbus status regs. */
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if (reg == PMBUS_STATUS_FAN_12) {
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if (mfr & CFFPS_MFR_FAN_FAULT)
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rc |= PB_FAN_FAN1_FAULT;
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} else if (reg == PMBUS_STATUS_TEMPERATURE) {
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if (mfr & CFFPS_MFR_THERMAL_FAULT)
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rc |= PB_TEMP_OT_FAULT;
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} else if (reg == PMBUS_STATUS_VOUT) {
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if (mfr & (CFFPS_MFR_OV_FAULT | CFFPS_MFR_VAUX_FAULT))
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rc |= PB_VOLTAGE_OV_FAULT;
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if (mfr & CFFPS_MFR_UV_FAULT)
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rc |= PB_VOLTAGE_UV_FAULT;
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} else if (reg == PMBUS_STATUS_IOUT) {
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if (mfr & CFFPS_MFR_OC_FAULT)
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rc |= PB_IOUT_OC_FAULT;
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if (mfr & CFFPS_MFR_CURRENT_SHARE_WARNING)
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rc |= PB_CURRENT_SHARE_FAULT;
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}
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break;
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default:
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rc = -ENODATA;
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break;
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}
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return rc;
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}
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static int ibm_cffps_read_word_data(struct i2c_client *client, int page,
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int phase, int reg)
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{
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int rc, mfr;
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switch (reg) {
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case PMBUS_STATUS_WORD:
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rc = pmbus_read_word_data(client, page, phase, reg);
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if (rc < 0)
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return rc;
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mfr = pmbus_read_byte_data(client, page,
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PMBUS_STATUS_MFR_SPECIFIC);
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if (mfr < 0)
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/*
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* Return the status register instead of an error,
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* since we successfully read status.
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*/
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return rc;
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|
|
||
|
|
if (mfr & CFFPS_MFR_PS_KILL)
|
||
|
|
rc |= PB_STATUS_OFF;
|
||
|
|
break;
|
||
|
|
case PMBUS_VIRT_READ_VMON:
|
||
|
|
rc = pmbus_read_word_data(client, page, phase,
|
||
|
|
CFFPS_12VCS_VOUT_CMD);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
rc = -ENODATA;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
return rc;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int ibm_cffps_led_brightness_set(struct led_classdev *led_cdev,
|
||
|
|
enum led_brightness brightness)
|
||
|
|
{
|
||
|
|
int rc;
|
||
|
|
u8 next_led_state;
|
||
|
|
struct ibm_cffps *psu = container_of(led_cdev, struct ibm_cffps, led);
|
||
|
|
|
||
|
|
if (brightness == LED_OFF) {
|
||
|
|
next_led_state = CFFPS_LED_OFF;
|
||
|
|
} else {
|
||
|
|
brightness = LED_FULL;
|
||
|
|
|
||
|
|
if (psu->led_state != CFFPS_LED_BLINK)
|
||
|
|
next_led_state = CFFPS_LED_ON;
|
||
|
|
else
|
||
|
|
next_led_state = CFFPS_LED_BLINK;
|
||
|
|
}
|
||
|
|
|
||
|
|
dev_dbg(&psu->client->dev, "LED brightness set: %d. Command: %d.\n",
|
||
|
|
brightness, next_led_state);
|
||
|
|
|
||
|
|
pmbus_set_page(psu->client, 0, 0xff);
|
||
|
|
|
||
|
|
rc = i2c_smbus_write_byte_data(psu->client, CFFPS_SYS_CONFIG_CMD,
|
||
|
|
next_led_state);
|
||
|
|
if (rc < 0)
|
||
|
|
return rc;
|
||
|
|
|
||
|
|
psu->led_state = next_led_state;
|
||
|
|
led_cdev->brightness = brightness;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int ibm_cffps_led_blink_set(struct led_classdev *led_cdev,
|
||
|
|
unsigned long *delay_on,
|
||
|
|
unsigned long *delay_off)
|
||
|
|
{
|
||
|
|
int rc;
|
||
|
|
struct ibm_cffps *psu = container_of(led_cdev, struct ibm_cffps, led);
|
||
|
|
|
||
|
|
dev_dbg(&psu->client->dev, "LED blink set.\n");
|
||
|
|
|
||
|
|
pmbus_set_page(psu->client, 0, 0xff);
|
||
|
|
|
||
|
|
rc = i2c_smbus_write_byte_data(psu->client, CFFPS_SYS_CONFIG_CMD,
|
||
|
|
CFFPS_LED_BLINK);
|
||
|
|
if (rc < 0)
|
||
|
|
return rc;
|
||
|
|
|
||
|
|
psu->led_state = CFFPS_LED_BLINK;
|
||
|
|
led_cdev->brightness = LED_FULL;
|
||
|
|
*delay_on = CFFPS_BLINK_RATE_MS;
|
||
|
|
*delay_off = CFFPS_BLINK_RATE_MS;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void ibm_cffps_create_led_class(struct ibm_cffps *psu)
|
||
|
|
{
|
||
|
|
int rc;
|
||
|
|
struct i2c_client *client = psu->client;
|
||
|
|
struct device *dev = &client->dev;
|
||
|
|
|
||
|
|
snprintf(psu->led_name, sizeof(psu->led_name), "%s-%02x", client->name,
|
||
|
|
client->addr);
|
||
|
|
psu->led.name = psu->led_name;
|
||
|
|
psu->led.max_brightness = LED_FULL;
|
||
|
|
psu->led.brightness_set_blocking = ibm_cffps_led_brightness_set;
|
||
|
|
psu->led.blink_set = ibm_cffps_led_blink_set;
|
||
|
|
|
||
|
|
rc = devm_led_classdev_register(dev, &psu->led);
|
||
|
|
if (rc)
|
||
|
|
dev_warn(dev, "failed to register led class: %d\n", rc);
|
||
|
|
else
|
||
|
|
i2c_smbus_write_byte_data(client, CFFPS_SYS_CONFIG_CMD,
|
||
|
|
CFFPS_LED_OFF);
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct pmbus_driver_info ibm_cffps_info[] = {
|
||
|
|
[cffps1] = {
|
||
|
|
.pages = 1,
|
||
|
|
.func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_IOUT |
|
||
|
|
PMBUS_HAVE_PIN | PMBUS_HAVE_FAN12 | PMBUS_HAVE_TEMP |
|
||
|
|
PMBUS_HAVE_TEMP2 | PMBUS_HAVE_TEMP3 |
|
||
|
|
PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_IOUT |
|
||
|
|
PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_STATUS_TEMP |
|
||
|
|
PMBUS_HAVE_STATUS_FAN12,
|
||
|
|
.read_byte_data = ibm_cffps_read_byte_data,
|
||
|
|
.read_word_data = ibm_cffps_read_word_data,
|
||
|
|
},
|
||
|
|
[cffps2] = {
|
||
|
|
.pages = 2,
|
||
|
|
.func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_IOUT |
|
||
|
|
PMBUS_HAVE_PIN | PMBUS_HAVE_FAN12 | PMBUS_HAVE_TEMP |
|
||
|
|
PMBUS_HAVE_TEMP2 | PMBUS_HAVE_TEMP3 |
|
||
|
|
PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_IOUT |
|
||
|
|
PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_STATUS_TEMP |
|
||
|
|
PMBUS_HAVE_STATUS_FAN12 | PMBUS_HAVE_VMON,
|
||
|
|
.func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_IOUT |
|
||
|
|
PMBUS_HAVE_TEMP | PMBUS_HAVE_TEMP2 | PMBUS_HAVE_TEMP3 |
|
||
|
|
PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_IOUT,
|
||
|
|
.read_byte_data = ibm_cffps_read_byte_data,
|
||
|
|
.read_word_data = ibm_cffps_read_word_data,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct pmbus_platform_data ibm_cffps_pdata = {
|
||
|
|
.flags = PMBUS_SKIP_STATUS_CHECK | PMBUS_NO_CAPABILITY,
|
||
|
|
};
|
||
|
|
|
||
|
|
static int ibm_cffps_probe(struct i2c_client *client)
|
||
|
|
{
|
||
|
|
int i, rc;
|
||
|
|
enum versions vs = cffps_unknown;
|
||
|
|
struct dentry *debugfs;
|
||
|
|
struct dentry *ibm_cffps_dir;
|
||
|
|
struct ibm_cffps *psu;
|
||
|
|
const void *md = of_device_get_match_data(&client->dev);
|
||
|
|
const struct i2c_device_id *id;
|
||
|
|
|
||
|
|
if (md) {
|
||
|
|
vs = (enum versions)md;
|
||
|
|
} else {
|
||
|
|
id = i2c_match_id(ibm_cffps_id, client);
|
||
|
|
if (id)
|
||
|
|
vs = (enum versions)id->driver_data;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (vs == cffps_unknown) {
|
||
|
|
u16 ccin_revision = 0;
|
||
|
|
u16 ccin_version = CFFPS_CCIN_VERSION_1;
|
||
|
|
int ccin = i2c_smbus_read_word_swapped(client, CFFPS_CCIN_CMD);
|
||
|
|
char mfg_id[I2C_SMBUS_BLOCK_MAX + 2] = { 0 };
|
||
|
|
|
||
|
|
if (ccin > 0) {
|
||
|
|
ccin_revision = FIELD_GET(CFFPS_CCIN_REVISION, ccin);
|
||
|
|
ccin_version = FIELD_GET(CFFPS_CCIN_VERSION, ccin);
|
||
|
|
}
|
||
|
|
|
||
|
|
rc = i2c_smbus_read_block_data(client, PMBUS_MFR_ID, mfg_id);
|
||
|
|
if (rc < 0) {
|
||
|
|
dev_err(&client->dev, "Failed to read Manufacturer ID\n");
|
||
|
|
return rc;
|
||
|
|
}
|
||
|
|
|
||
|
|
switch (ccin_version) {
|
||
|
|
default:
|
||
|
|
case CFFPS_CCIN_VERSION_1:
|
||
|
|
if ((strncmp(mfg_id, "ACBE", 4) == 0) ||
|
||
|
|
(strncmp(mfg_id, "ARTE", 4) == 0))
|
||
|
|
vs = cffps1;
|
||
|
|
else
|
||
|
|
vs = cffps2;
|
||
|
|
break;
|
||
|
|
case CFFPS_CCIN_VERSION_2:
|
||
|
|
vs = cffps2;
|
||
|
|
break;
|
||
|
|
case CFFPS_CCIN_VERSION_3:
|
||
|
|
if (ccin_revision == CFFPS_CCIN_REVISION_LEGACY)
|
||
|
|
vs = cffps1;
|
||
|
|
else
|
||
|
|
vs = cffps2;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Set the client name to include the version number. */
|
||
|
|
snprintf(client->name, I2C_NAME_SIZE, "cffps%d", vs + 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
client->dev.platform_data = &ibm_cffps_pdata;
|
||
|
|
rc = pmbus_do_probe(client, &ibm_cffps_info[vs]);
|
||
|
|
if (rc)
|
||
|
|
return rc;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Don't fail the probe if there isn't enough memory for leds and
|
||
|
|
* debugfs.
|
||
|
|
*/
|
||
|
|
psu = devm_kzalloc(&client->dev, sizeof(*psu), GFP_KERNEL);
|
||
|
|
if (!psu)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
psu->version = vs;
|
||
|
|
psu->client = client;
|
||
|
|
mutex_init(&psu->input_history.update_lock);
|
||
|
|
psu->input_history.last_update = jiffies - HZ;
|
||
|
|
|
||
|
|
ibm_cffps_create_led_class(psu);
|
||
|
|
|
||
|
|
/* Don't fail the probe if we can't create debugfs */
|
||
|
|
debugfs = pmbus_get_debugfs_dir(client);
|
||
|
|
if (!debugfs)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
ibm_cffps_dir = debugfs_create_dir(client->name, debugfs);
|
||
|
|
if (!ibm_cffps_dir)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
for (i = 0; i < CFFPS_DEBUGFS_NUM_ENTRIES; ++i)
|
||
|
|
psu->debugfs_entries[i] = i;
|
||
|
|
|
||
|
|
debugfs_create_file("input_history", 0444, ibm_cffps_dir,
|
||
|
|
&psu->debugfs_entries[CFFPS_DEBUGFS_INPUT_HISTORY],
|
||
|
|
&ibm_cffps_fops);
|
||
|
|
debugfs_create_file("mfg_id", 0444, ibm_cffps_dir,
|
||
|
|
&psu->debugfs_entries[CFFPS_DEBUGFS_MFG_ID],
|
||
|
|
&ibm_cffps_fops);
|
||
|
|
debugfs_create_file("fru", 0444, ibm_cffps_dir,
|
||
|
|
&psu->debugfs_entries[CFFPS_DEBUGFS_FRU],
|
||
|
|
&ibm_cffps_fops);
|
||
|
|
debugfs_create_file("part_number", 0444, ibm_cffps_dir,
|
||
|
|
&psu->debugfs_entries[CFFPS_DEBUGFS_PN],
|
||
|
|
&ibm_cffps_fops);
|
||
|
|
debugfs_create_file("header", 0444, ibm_cffps_dir,
|
||
|
|
&psu->debugfs_entries[CFFPS_DEBUGFS_HEADER],
|
||
|
|
&ibm_cffps_fops);
|
||
|
|
debugfs_create_file("serial_number", 0444, ibm_cffps_dir,
|
||
|
|
&psu->debugfs_entries[CFFPS_DEBUGFS_SN],
|
||
|
|
&ibm_cffps_fops);
|
||
|
|
debugfs_create_file("max_power_out", 0444, ibm_cffps_dir,
|
||
|
|
&psu->debugfs_entries[CFFPS_DEBUGFS_MAX_POWER_OUT],
|
||
|
|
&ibm_cffps_fops);
|
||
|
|
debugfs_create_file("ccin", 0444, ibm_cffps_dir,
|
||
|
|
&psu->debugfs_entries[CFFPS_DEBUGFS_CCIN],
|
||
|
|
&ibm_cffps_fops);
|
||
|
|
debugfs_create_file("fw_version", 0444, ibm_cffps_dir,
|
||
|
|
&psu->debugfs_entries[CFFPS_DEBUGFS_FW],
|
||
|
|
&ibm_cffps_fops);
|
||
|
|
debugfs_create_file("on_off_config", 0644, ibm_cffps_dir,
|
||
|
|
&psu->debugfs_entries[CFFPS_DEBUGFS_ON_OFF_CONFIG],
|
||
|
|
&ibm_cffps_fops);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct i2c_device_id ibm_cffps_id[] = {
|
||
|
|
{ "ibm_cffps1", cffps1 },
|
||
|
|
{ "ibm_cffps2", cffps2 },
|
||
|
|
{ "ibm_cffps", cffps_unknown },
|
||
|
|
{}
|
||
|
|
};
|
||
|
|
MODULE_DEVICE_TABLE(i2c, ibm_cffps_id);
|
||
|
|
|
||
|
|
static const struct of_device_id ibm_cffps_of_match[] = {
|
||
|
|
{
|
||
|
|
.compatible = "ibm,cffps1",
|
||
|
|
.data = (void *)cffps1
|
||
|
|
},
|
||
|
|
{
|
||
|
|
.compatible = "ibm,cffps2",
|
||
|
|
.data = (void *)cffps2
|
||
|
|
},
|
||
|
|
{
|
||
|
|
.compatible = "ibm,cffps",
|
||
|
|
.data = (void *)cffps_unknown
|
||
|
|
},
|
||
|
|
{}
|
||
|
|
};
|
||
|
|
MODULE_DEVICE_TABLE(of, ibm_cffps_of_match);
|
||
|
|
|
||
|
|
static struct i2c_driver ibm_cffps_driver = {
|
||
|
|
.driver = {
|
||
|
|
.name = "ibm-cffps",
|
||
|
|
.of_match_table = ibm_cffps_of_match,
|
||
|
|
},
|
||
|
|
.probe_new = ibm_cffps_probe,
|
||
|
|
.id_table = ibm_cffps_id,
|
||
|
|
};
|
||
|
|
|
||
|
|
module_i2c_driver(ibm_cffps_driver);
|
||
|
|
|
||
|
|
MODULE_AUTHOR("Eddie James");
|
||
|
|
MODULE_DESCRIPTION("PMBus driver for IBM Common Form Factor power supplies");
|
||
|
|
MODULE_LICENSE("GPL");
|
||
|
|
MODULE_IMPORT_NS(PMBUS);
|