From patchwork Thu Feb 17 09:27:29 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: 12749680 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 2F534C4332F for ; Thu, 17 Feb 2022 09:28:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238134AbiBQJ2R (ORCPT ); Thu, 17 Feb 2022 04:28:17 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:48518 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238693AbiBQJ2R (ORCPT ); Thu, 17 Feb 2022 04:28:17 -0500 Received: from mout-p-201.mailbox.org (mout-p-201.mailbox.org [80.241.56.171]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7E00C1B4010; Thu, 17 Feb 2022 01:28:02 -0800 (PST) Received: from smtp1.mailbox.org (smtp1.mailbox.org [80.241.60.240]) (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-201.mailbox.org (Postfix) with ESMTPS id 4JzqHh1mwHz9sbf; Thu, 17 Feb 2022 10:28:00 +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=1645090078; 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=7aWy03r2xG591PkmlPEtGVpU4AD/zizcWjrvxdU3HJ4=; b=NM0EVEboLNIvtV3ZZ7W5SlRL7486GsjS05YGQr2KJdZnqcKpn9b7MSCKjJqIxlaH2Be2Ha CL1A1gBlCTx2J8Go26ASK8PXjKaRefQuEtD+9udy7br+vldy1tcva7wDfSUZsCUKyBUIXR mH2UIi/vay4fWEvTLYGTDRgcBYsmA4WYUZJVlPKO9qljaX8D3N8HQASML+lNJZPxjixc+w KYU1SWkhzwiRaUcoTahrhNApsua/A5P/wMsyXUKntWnaUuLMN/uQNtqEwhVT+5ua1p7ofp IuUZb5zYejJmQT+gnwwTZMG0aQ0NpQkYJZ8/f/WBT3tGwfVzM5/elWsYuQdzTA== From: Marcello Sylvester Bauer To: Guenter Roeck , Jean Delvare , Jonathan Corbet Cc: linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org, Patrick Rudolph , Marcello Sylvester Bauer , linux-doc@vger.kernel.org Subject: [PATCH v1 2/3] hwmon (xdpe12284): Add support for xdpe11280 Date: Thu, 17 Feb 2022 10:27:29 +0100 Message-Id: <5a206f8d36b4d95c49ec65d759f720249a2cd7d9.1645088804.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 support for another family of Infineon Multi-phase controllers. The xdpe11280 uses linear instead of vid data format for VOUT. Add the required logic to detect VOUT_MODE during identification, and set the format accordingly. Signed-off-by: Marcello Sylvester Bauer --- Documentation/hwmon/xdpe12284.rst | 10 +++++++--- drivers/hwmon/pmbus/xdpe12284.c | 17 ++++++++++++++++- 2 files changed, 23 insertions(+), 4 deletions(-) diff --git a/Documentation/hwmon/xdpe12284.rst b/Documentation/hwmon/xdpe12284.rst index 67d1f87808e5..e9a5a19b0c3d 100644 --- a/Documentation/hwmon/xdpe12284.rst +++ b/Documentation/hwmon/xdpe12284.rst @@ -5,6 +5,10 @@ Kernel driver xdpe122 Supported chips: + * Infineon XDPE11280 + + Prefix: 'xdpe11280' + * Infineon XDPE12254 Prefix: 'xdpe12254' @@ -20,9 +24,9 @@ Authors: Description ----------- -This driver implements support for Infineon Multi-phase XDPE122 family -dual loop voltage regulators. -The family includes XDPE12284 and XDPE12254 devices. +This driver implements support for Infineon Multi-phase XDPE112 and XDPE122 +family dual loop voltage regulators. +These families include XDPE11280, XDPE12284 and XDPE12254 devices. The devices from this family complaint with: - Intel VR13 and VR13HC rev 1.3, IMVP8 rev 1.2 and IMPVP9 rev 1.3 DC-DC diff --git a/drivers/hwmon/pmbus/xdpe12284.c b/drivers/hwmon/pmbus/xdpe12284.c index b07da06a40c9..ec947c697670 100644 --- a/drivers/hwmon/pmbus/xdpe12284.c +++ b/drivers/hwmon/pmbus/xdpe12284.c @@ -27,6 +27,9 @@ static int xdpe122_read_word_data(struct i2c_client *client, int page, s32 mantissa; int ret; + if (info->format[PSC_VOLTAGE_OUT] == linear) + return -ENODATA; + switch (reg) { case PMBUS_VOUT_OV_FAULT_LIMIT: case PMBUS_VOUT_UV_FAULT_LIMIT: @@ -75,9 +78,19 @@ static int xdpe122_read_word_data(struct i2c_client *client, int page, static int xdpe122_identify(struct i2c_client *client, struct pmbus_driver_info *info) { - u8 vout_params; + u8 vout_mode, vout_params; int i, ret; + ret = pmbus_read_byte_data(client, 0, PMBUS_VOUT_MODE); + if (ret < 0) + return ret; + + vout_mode = ret >> 5; + if (vout_mode == 0) { + info->format[PSC_VOLTAGE_OUT] = linear; + return 0; + } + for (i = 0; i < XDPE122_PAGE_NUM; i++) { /* Read the register with VOUT scaling value.*/ ret = pmbus_read_byte_data(client, i, PMBUS_VOUT_MODE); @@ -140,6 +153,7 @@ static int xdpe122_probe(struct i2c_client *client) } static const struct i2c_device_id xdpe122_id[] = { + {"xdpe11280", 0}, {"xdpe12254", 0}, {"xdpe12284", 0}, {} @@ -148,6 +162,7 @@ static const struct i2c_device_id xdpe122_id[] = { MODULE_DEVICE_TABLE(i2c, xdpe122_id); static const struct of_device_id __maybe_unused xdpe122_of_match[] = { + {.compatible = "infineon,xdpe11280"}, {.compatible = "infineon,xdpe12254"}, {.compatible = "infineon,xdpe12284"}, {}