From patchwork Fri Oct 14 17:24:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Marek Vasut X-Patchwork-Id: 615199 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 5E797C43219 for ; Fri, 14 Oct 2022 17:24:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230086AbiJNRYu (ORCPT ); Fri, 14 Oct 2022 13:24:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52326 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230337AbiJNRYr (ORCPT ); Fri, 14 Oct 2022 13:24:47 -0400 Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EF8AF20356 for ; Fri, 14 Oct 2022 10:24:45 -0700 (PDT) Received: from tr.lan (ip-86-49-12-201.bb.vodafone.cz [86.49.12.201]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: marex@denx.de) by phobos.denx.de (Postfix) with ESMTPSA id B407384EA8; Fri, 14 Oct 2022 19:24:42 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1665768282; bh=MwkRKajwC9OjsHcqszKSG7RdYaNHhDBu9jjx3tOZ8vk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cnZfB++qNyCKJ5Lb/SR8NLUHe43pnnfFiAPODTtlcXNpbxpG3U9K58de89EM/HFj9 oqSUOxAGpPbckgemiB4yB6uw0CDcwL1aCNjwv9cXcom5Hi5uTwhAGn5zYbrC/O4LiR fhijz0sDybi+8YCSuGrz4HHOiW+7p8Q/H1ldiaGYGQxhrXADZp2vCPbZrbGwelhgRY 84RksGIZHxsnI6WOgUVF1J6gZGJY31O9QweyhwCKxXoTTMk3HnhYygbCYEjbSjD+BW eErR1auysQvQqKjOfWKeiH1e0y4gks17jTja2prvZ+LgwhkhRHtu2XjbR9zPjSyvhu 5wcqB91+nVwBw== From: Marek Vasut To: linux-pm@vger.kernel.org Cc: Marek Vasut , Hans de Goede , Andy Shevchenko , =?utf-8?b?TWljaGHFgiBN?= =?utf-8?b?aXJvc8WCYXc=?= , Sebastian Reichel Subject: [PATCH v2 7/7] power: supply: bq25890: Add Vsys regulator Date: Fri, 14 Oct 2022 19:24:27 +0200 Message-Id: <20221014172427.128512-7-marex@denx.de> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20221014172427.128512-1-marex@denx.de> References: <20221014172427.128512-1-marex@denx.de> MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.103.6 at phobos.denx.de X-Virus-Status: Clean Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org The chip is capable of reporting Vsys voltage supplied to the system. Add regulator which represents the Vsys supply. This can be used e.g. as a supply for system PMIC input. Reviewed-by: Hans de Goede Signed-off-by: Marek Vasut --- Cc: Andy Shevchenko Cc: Hans de Goede Cc: Michał Mirosław Cc: Sebastian Reichel To: linux-pm@vger.kernel.org --- V2: Add RB from Hans --- drivers/power/supply/bq25890_charger.c | 32 ++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/drivers/power/supply/bq25890_charger.c b/drivers/power/supply/bq25890_charger.c index ad5811304f88a..f0362dcb935e9 100644 --- a/drivers/power/supply/bq25890_charger.c +++ b/drivers/power/supply/bq25890_charger.c @@ -1102,6 +1102,20 @@ static int bq25890_vbus_get_voltage(struct regulator_dev *rdev) return bq25890_get_vbus_voltage(bq); } +static int bq25890_vsys_get_voltage(struct regulator_dev *rdev) +{ + struct bq25890_device *bq = rdev_get_drvdata(rdev); + int ret; + + /* Should be some output voltage ? */ + ret = bq25890_field_read(bq, F_SYSV); /* read measured value */ + if (ret < 0) + return ret; + + /* converted_val = 2.304V + ADC_val * 20mV (table 10.3.15) */ + return 2304000 + ret * 20000; +} + static const struct regulator_ops bq25890_vbus_ops = { .enable = bq25890_vbus_enable, .disable = bq25890_vbus_disable, @@ -1117,6 +1131,18 @@ static const struct regulator_desc bq25890_vbus_desc = { .ops = &bq25890_vbus_ops, }; +static const struct regulator_ops bq25890_vsys_ops = { + .get_voltage = bq25890_vsys_get_voltage, +}; + +static const struct regulator_desc bq25890_vsys_desc = { + .name = "vsys", + .of_match = "vsys", + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .ops = &bq25890_vsys_ops, +}; + static int bq25890_register_regulator(struct bq25890_device *bq) { struct bq25890_platform_data *pdata = dev_get_platdata(bq->dev); @@ -1135,6 +1161,12 @@ static int bq25890_register_regulator(struct bq25890_device *bq) "registering vbus regulator"); } + reg = devm_regulator_register(bq->dev, &bq25890_vsys_desc, &cfg); + if (IS_ERR(reg)) { + return dev_err_probe(bq->dev, PTR_ERR(reg), + "registering vsys regulator"); + } + return 0; } #else