From patchwork Mon Feb 14 21:44:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marcello Sylvester Bauer X-Patchwork-Id: 12746179 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 953DAC433F5 for ; Mon, 14 Feb 2022 21:45:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231585AbiBNVpg (ORCPT ); Mon, 14 Feb 2022 16:45:36 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:58902 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231557AbiBNVpc (ORCPT ); Mon, 14 Feb 2022 16:45:32 -0500 Received: from mout-p-102.mailbox.org (mout-p-102.mailbox.org [IPv6:2001:67c:2050::465:102]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B020D1867CD; Mon, 14 Feb 2022 13:45:23 -0800 (PST) Received: from smtp102.mailbox.org (smtp102.mailbox.org [80.241.60.233]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-102.mailbox.org (Postfix) with ESMTPS id 4JyHnt2vN8z9sSf; Mon, 14 Feb 2022 22:45:22 +0100 (CET) X-Virus-Scanned: amavisd-new at heinlein-support.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sylv.io; s=MBO0001; t=1644875120; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=o3OnkfNIlxKTfWCDh3v7NYShsHsY2PCO/uVwUGHHgd8=; b=vL3AOWXHN+KPGHlRoySohmFay58jWxca4fYr8IiIrG+9o3aeAUzWrzPknMIvhbYiaPt0gL B6t3tbaCACj0FY8AZK45EteP2yi8/iGEw9xASpolI6pJ7qqGsJjcJRSaMN9nu6ASsfEQS+ iM6B0NftLREklFaUa7iO2Yet1yvapnjLUBKLWXbOpXrUd6eJe8ZT0lvmWnYHk2m+WgvwDo GkBqS6rF2ycohLAKnwPUZygGmf0bhvRvCIrPUxXPFixOkKZbsC15XgbjVynjQ0SqRz1bxJ 6KVp4LYF5ifioTBHbkLEiaPqpcjM1b+/Y8lIrZ/cqjYhr2e3Jqa+6m7seyKJoQ== From: Marcello Sylvester Bauer To: Guenter Roeck , Jean Delvare Cc: linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org, Patrick Rudolph , Marcello Sylvester Bauer Subject: [PATCH v3 4/4] pmbus (pli1209bc): Add regulator support Date: Mon, 14 Feb 2022 22:44:56 +0100 Message-Id: <2b4127730fc53fceed0a6506900439f501ca42cf.1644874828.git.sylv@sylv.io> In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org Add regulator support for PLI1209BC Digital Supervisor. Signed-off-by: Marcello Sylvester Bauer --- drivers/hwmon/pmbus/Kconfig | 7 +++++++ drivers/hwmon/pmbus/pli1209bc.c | 31 +++++++++++++++++++++++++++++++ 2 files changed, 38 insertions(+) diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index 831db423bea0..8b8f0d8733b2 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -319,6 +319,13 @@ config SENSORS_PLI1209BC This driver can also be built as a module. If so, the module will be called pli1209bc. +config SENSORS_PLI1209BC_REGULATOR + bool "Regulator support for PLI1209BC" + depends on SENSORS_PLI1209BC && REGULATOR + help + If you say yes here you get regulator support for Vicor PLI1209BC + Digital Supervisor. + config SENSORS_PM6764TR tristate "ST PM6764TR" help diff --git a/drivers/hwmon/pmbus/pli1209bc.c b/drivers/hwmon/pmbus/pli1209bc.c index 5f8847307e55..05b4ee35ba27 100644 --- a/drivers/hwmon/pmbus/pli1209bc.c +++ b/drivers/hwmon/pmbus/pli1209bc.c @@ -8,6 +8,7 @@ #include #include #include +#include #include "pmbus.h" /* @@ -33,11 +34,37 @@ static int pli1209bc_read_word_data(struct i2c_client *client, int page, return data; data = sign_extend32(data, 15) * 10; return clamp_val(data, -32768, 32767) & 0xffff; + /* + * PMBUS_READ_VOUT and PMBUS_READ_TEMPERATURE_1 return invalid data + * when the BCM is turned off. Since it is not possible to return + * ENODATA error, return zero instead. + */ + case PMBUS_READ_VOUT: + case PMBUS_READ_TEMPERATURE_1: + data = pmbus_read_word_data(client, page, phase, + PMBUS_STATUS_WORD); + if (data < 0) + return data; + if (data & PB_STATUS_POWER_GOOD_N) + return 0; + return pmbus_read_word_data(client, page, phase, reg); default: return -ENODATA; } } +#if IS_ENABLED(CONFIG_SENSORS_PLI1209BC_REGULATOR) +static const struct regulator_desc pli1209bc_reg_desc = { + .name = "vout2", + .id = 1, + .of_match = of_match_ptr("vout2"), + .regulators_node = of_match_ptr("regulators"), + .ops = &pmbus_regulator_ops, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, +}; +#endif + static struct pmbus_driver_info pli1209bc_info = { .pages = 2, .format[PSC_VOLTAGE_IN] = direct, @@ -75,6 +102,10 @@ static struct pmbus_driver_info pli1209bc_info = { | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_INPUT, .read_word_data = pli1209bc_read_word_data, +#if IS_ENABLED(CONFIG_SENSORS_PLI1209BC_REGULATOR) + .num_regulators = 1, + .reg_desc = &pli1209bc_reg_desc, +#endif }; static int pli1209bc_probe(struct i2c_client *client)