From patchwork Fri Apr 23 13:00:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Carl Philipp Klemm X-Patchwork-Id: 426528 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=-13.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED 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 622ECC433B4 for ; Fri, 23 Apr 2021 13:01:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2E79B61467 for ; Fri, 23 Apr 2021 13:01:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229479AbhDWNBx (ORCPT ); Fri, 23 Apr 2021 09:01:53 -0400 Received: from sender11-of-o51.zoho.eu ([31.186.226.237]:21195 "EHLO sender11-of-o51.zoho.eu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242540AbhDWNBw (ORCPT ); Fri, 23 Apr 2021 09:01:52 -0400 X-Greylist: delayed 314 seconds by postgrey-1.27 at vger.kernel.org; Fri, 23 Apr 2021 09:01:51 EDT ARC-Seal: i=1; a=rsa-sha256; t=1619182859; cv=none; d=zohomail.eu; s=zohoarc; b=Xhtbc+XTfak7Fd+bd2fi+E7APArH6SvomV9WJfCt0z27NrdnUrYwtKT7KBPr/DyL6piGJFUDJgp4h3rOz55yeIiTdEiT2U9hSB+sE4D9tQ1pftS4tbIMl4YRAe5uQP3qoYEJzI3hpdnMjbkDesnL9+PuMGSkwMTdrm3vD7uwHPo= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.eu; s=zohoarc; t=1619182859; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:MIME-Version:Message-ID:Subject:To; bh=/Www13c1RRjJyZQ2ij29U6Ef95VskP+Y2GPW+4P6PrI=; b=Ya1p4d+CCeTcPNNT6qDlI80/bFDXrAu4+JbdrUDu2wo4K1gqTWAmNJsjrMntUQDqBjh5TnZVwxBiTF9cwJolW60QjI5fPGgzMfx5VLH3T2YmV0L6rAZ+4rvbEd9WLaJBMgRRyZwu8AHAFTrcPovCqPRyTGV3GN4ey4EIwqM+zOY= ARC-Authentication-Results: i=1; mx.zohomail.eu; spf=pass smtp.mailfrom=philipp@uvos.xyz; dmarc=pass header.from= header.from= Received: from UVOSLinux (ip-95-222-215-151.hsi15.unitymediagroup.de [95.222.215.151]) by mx.zoho.eu with SMTPS id 1619182858059347.3495751384486; Fri, 23 Apr 2021 15:00:58 +0200 (CEST) Date: Fri, 23 Apr 2021 15:00:57 +0200 From: Carl Philipp Klemm To: Sebastian Reichel Cc: linux-pm@vger.kernel.org, linux-omap@vger.kernel.org, Arthur Demchenkov , Tony Lindgren , Merlijn Wajer , Pavel Machek Subject: [PATCH v2] power: supply: cpcap-charger: get the battery inserted infomation from cpcap-battery Message-Id: <20210423150057.97e0a2b43f20fdc3513f4fea@uvos.xyz> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; x86_64-unknown-linux-gnu) Mime-Version: 1.0 X-ZohoMailClient: External Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org This avoids reimplementing the detection logic twice and removes the possibility of activating charging with 500mA even if a battery is not detected. Signed-off-by: Carl Philipp Klemm --- drivers/power/supply/cpcap-charger.c | 39 ++++++++++++++-------------- 1 file changed, 20 insertions(+), 19 deletions(-) diff --git a/drivers/power/supply/cpcap-charger.c b/drivers/power/supply/cpcap-charger.c index 641dcad1133f..a5983365b81a 100644 --- a/drivers/power/supply/cpcap-charger.c +++ b/drivers/power/supply/cpcap-charger.c @@ -173,23 +173,6 @@ static enum power_supply_property cpcap_charger_props[] = { POWER_SUPPLY_PROP_CURRENT_NOW, }; -/* No battery always shows temperature of -40000 */ -static bool cpcap_charger_battery_found(struct cpcap_charger_ddata *ddata) -{ - struct iio_channel *channel; - int error, temperature; - - channel = ddata->channels[CPCAP_CHARGER_IIO_BATTDET]; - error = iio_read_channel_processed(channel, &temperature); - if (error < 0) { - dev_warn(ddata->dev, "%s failed: %i\n", __func__, error); - - return false; - } - - return temperature > -20000 && temperature < 60000; -} - static int cpcap_charger_get_charge_voltage(struct cpcap_charger_ddata *ddata) { struct iio_channel *channel; @@ -697,11 +680,29 @@ static void cpcap_usb_detect(struct work_struct *work) if (!ddata->feeding_vbus && cpcap_charger_vbus_valid(ddata) && s.chrgcurr1) { - int max_current = 532000; + int max_current; int vchrg, ichrg; + union power_supply_propval val; + struct power_supply *battery; - if (cpcap_charger_battery_found(ddata)) + battery = power_supply_get_by_name("battery"); + if (IS_ERR_OR_NULL(battery)) { + dev_err(ddata->dev, "battery power_supply not available %li\n", + PTR_ERR(battery)); + return; + } + + error = power_supply_get_property(battery, POWER_SUPPLY_PROP_PRESENT, &val); + power_supply_put(battery); + if (error) + goto out_err; + + if (val.intval) { max_current = 1596000; + } else { + dev_info(ddata->dev, "battery not inserted charging disabled\n"); + max_current = 0; + } if (max_current > ddata->limit_current) max_current = ddata->limit_current;