From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5510CC432C0 for ; Fri, 29 Nov 2019 06:07:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 214222176D for ; Fri, 29 Nov 2019 06:07:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726164AbfK2GHp (ORCPT ); Fri, 29 Nov 2019 01:07:45 -0500 Received: from segapp02.wistron.com ([103.200.3.19]:59447 "EHLO segapp03.wistron.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725892AbfK2GHp (ORCPT ); Fri, 29 Nov 2019 01:07:45 -0500 X-Greylist: delayed 302 seconds by postgrey-1.27 at vger.kernel.org; Fri, 29 Nov 2019 01:07:42 EST Received: from EXCHAPP02.whq.wistron (unverified [10.37.38.25]) by TWNHUMSW4.wistron.com (Clearswift SMTPRS 5.6.0) with ESMTP id ; Fri, 29 Nov 2019 14:02:38 +0800 Received: from EXCHAPP02.whq.wistron (10.37.38.25) by EXCHAPP02.whq.wistron (10.37.38.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Fri, 29 Nov 2019 14:02:37 +0800 Received: from gitserver.wistron.com (10.37.38.233) by EXCHAPP02.whq.wistron (10.37.38.25) with Microsoft SMTP Server id 15.1.1713.5 via Frontend Transport; Fri, 29 Nov 2019 14:02:37 +0800 From: Ben Pai To: CC: , , , , , , , , , Ben Pai Subject: [ v1] hwmon: (pmbus) Add Wistron power supply pmbus driver Date: Fri, 29 Nov 2019 14:02:30 +0800 Message-ID: <20191129060230.14522-1-Ben_Pai@wistron.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-TM-SNTS-SMTP: 2BB2C5B8A09FB1C966BBAE698742D39AE829BF86664D6743517F47263D541F492000:8 Content-Transfer-Encoding: 7bit Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add the driver to monitor Wisreon power supplies with hwmon over pmbus. Signed-off-by: Ben Pai --- drivers/hwmon/pmbus/Kconfig | 9 ++ drivers/hwmon/pmbus/Makefile | 1 + drivers/hwmon/pmbus/wistron-wps.c | 180 ++++++++++++++++++++++++++++++ 3 files changed, 190 insertions(+) create mode 100644 drivers/hwmon/pmbus/wistron-wps.c diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index d62d69bb7e49..ebb7024e58ab 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -219,6 +219,15 @@ config SENSORS_UCD9200 This driver can also be built as a module. If so, the module will be called ucd9200. +config SENSORS_WISTRON_WPS + tristate "Wistron Power Supply" + help + If you say yes here you get hardware monitoring support for the Wistron + power supply. + + This driver can also be built as a module. If so, the module will + be called wistron-wps. + config SENSORS_ZL6100 tristate "Intersil ZL6100 and compatibles" help diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile index 03bacfcfd660..cad38f99e8c5 100644 --- a/drivers/hwmon/pmbus/Makefile +++ b/drivers/hwmon/pmbus/Makefile @@ -25,4 +25,5 @@ obj-$(CONFIG_SENSORS_TPS40422) += tps40422.o obj-$(CONFIG_SENSORS_TPS53679) += tps53679.o obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o obj-$(CONFIG_SENSORS_UCD9200) += ucd9200.o +obj-$(CONFIG_SENSORS_WISTRON_WPS) += wistron-wps.o obj-$(CONFIG_SENSORS_ZL6100) += zl6100.o diff --git a/drivers/hwmon/pmbus/wistron-wps.c b/drivers/hwmon/pmbus/wistron-wps.c new file mode 100644 index 000000000000..764496aa9d4f --- /dev/null +++ b/drivers/hwmon/pmbus/wistron-wps.c @@ -0,0 +1,180 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright 2019 Wistron Corp. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "pmbus.h" + +#define WPS_ID_CMD 0x99 +#define WPS_PN_CMD 0x9A +#define WPS_FW_CMD 0x9B +#define WPS_DATE_CMD 0x9D +#define WPS_SN_CMD 0x9E + +enum { + WPS_DEBUGFS_ID, + WPS_DEBUGFS_PN, + WPS_DEBUGFS_SN, + WPS_DEBUGFS_FW, + WPS_DEBUGFS_DATE, + WPS_DEBUGFS_NUM_ENTRIES +}; + +struct wistron_wps { + + struct i2c_client *client; + + int debugfs_entries[WPS_DEBUGFS_NUM_ENTRIES]; + +}; + +#define to_psu(x, y) container_of((x), struct wistron_wps, debugfs_entries[(y)]) + +static ssize_t wistron_wps_debugfs_op(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + u8 cmd; + int rc; + int *idxp = file->private_data; + int idx = *idxp; + struct wistron_wps *psu = to_psu(idxp, idx); + char data[I2C_SMBUS_BLOCK_MAX] = { 0 }; + + switch (idx) { + case WPS_DEBUGFS_ID: + cmd = WPS_ID_CMD; + break; + case WPS_DEBUGFS_PN: + cmd = WPS_PN_CMD; + break; + case WPS_DEBUGFS_SN: + cmd = WPS_SN_CMD; + break; + case WPS_DEBUGFS_FW: + cmd = WPS_FW_CMD; + break; + case WPS_DEBUGFS_DATE: + cmd = WPS_DATE_CMD; + break; + default: + return -EINVAL; + } + + rc = i2c_smbus_read_block_data(psu->client, cmd, data); + if (rc < 0) + return rc; + +done: + data[rc] = '\n'; + rc += 2; + + return simple_read_from_buffer(buf, count, ppos, data, rc); +} + +static const struct file_operations wistron_wps_fops = { + .llseek = noop_llseek, + .read = wistron_wps_debugfs_op, + .open = simple_open, +}; + +static struct pmbus_driver_info wistron_wps_info = { + .pages = 1, + .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_IOUT | + PMBUS_HAVE_PIN | PMBUS_HAVE_POUT | 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, +}; + +static struct pmbus_platform_data wistron_wps_pdata = { + .flags = PMBUS_SKIP_STATUS_CHECK, +}; + +static int wistron_wps_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + int i, rc; + struct dentry *debugfs; + struct dentry *wistron_wps_dir; + struct wistron_wps *psu; + + client->dev.platform_data = &wistron_wps_pdata; + rc = pmbus_do_probe(client, id, &wistron_wps_info); + if (rc) + return rc; + + psu = devm_kzalloc(&client->dev, sizeof(*psu), GFP_KERNEL); + if (!psu) + return 0; + + psu->client = client; + + debugfs = pmbus_get_debugfs_dir(client); + if (!debugfs) + return 0; + + wistron_wps_dir = debugfs_create_dir(client->name, debugfs); + if (!wistron_wps_dir) + return 0; + + for (i = 0; i < WPS_DEBUGFS_NUM_ENTRIES; ++i) + psu->debugfs_entries[i] = i; + + debugfs_create_file("fru", 0444, wistron_wps_dir, + &psu->debugfs_entries[WPS_DEBUGFS_ID], + &wistron_wps_fops); + debugfs_create_file("part_number", 0444, wistron_wps_dir, + &psu->debugfs_entries[WPS_DEBUGFS_PN], + &wistron_wps_fops); + debugfs_create_file("serial_number", 0444, wistron_wps_dir, + &psu->debugfs_entries[WPS_DEBUGFS_SN], + &wistron_wps_fops); + debugfs_create_file("fw_version", 0444, wistron_wps_dir, + &psu->debugfs_entries[WPS_DEBUGFS_FW], + &wistron_wps_fops); + debugfs_create_file("mfr_date", 0444, wistron_wps_dir, + &psu->debugfs_entries[WPS_DEBUGFS_DATE], + &wistron_wps_fops); + + return 0; +} + +static const struct i2c_device_id wistron_wps_id[] = { + { "wistron_wps", 1 }, + {} +}; +MODULE_DEVICE_TABLE(i2c, wistron_wps_id); + +static const struct of_device_id wistron_wps_of_match[] = { + { .compatible = "wistron,wps" }, + {} +}; +MODULE_DEVICE_TABLE(of, wistron_wps_of_match); + +static struct i2c_driver wistron_wps_driver = { + .driver = { + .name = "wistron-wps", + .of_match_table = wistron_wps_of_match, + }, + .probe = wistron_wps_probe, + .remove = pmbus_do_remove, + .id_table = wistron_wps_id, +}; + +module_i2c_driver(wistron_wps_driver); + +MODULE_AUTHOR("Ben Pai"); +MODULE_DESCRIPTION("PMBus driver for Wistron power supplies"); +MODULE_LICENSE("GPL"); -- 2.17.1 --------------------------------------------------------------------------------------------------------------------------------------------------------------- This email contains confidential or legally privileged information and is for the sole use of its intended recipient. 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