From patchwork Sun Jan 17 21:41:58 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: 365835 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=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 4B097C433E0 for ; Sun, 17 Jan 2021 21:59:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1A3EE208A9 for ; Sun, 17 Jan 2021 21:59:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730186AbhAQV7b (ORCPT ); Sun, 17 Jan 2021 16:59:31 -0500 Received: from sender11-of-o51.zoho.eu ([31.186.226.237]:21128 "EHLO sender11-of-o51.zoho.eu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730185AbhAQV7X (ORCPT ); Sun, 17 Jan 2021 16:59:23 -0500 ARC-Seal: i=1; a=rsa-sha256; t=1610919720; cv=none; d=zohomail.eu; s=zohoarc; b=T6ZiSJEnKAgD1fHvgi9+5OBGTROu7NvHycmmlw7UvMeOPw4EVzFyCrfdA5HZTtFdFH+b0d2Y1UE2T+EI7FoVYCNiomhvy1yXYv92Vn6LHP7Fi/eXH3KaJf3wIVHA7MFUBtSOcfyqLzEiqnUBRPnWQi9WdkaV3RvfFQRucinDCXY= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.eu; s=zohoarc; t=1610919720; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:MIME-Version:Message-ID:Subject:To; bh=oya5WPtN116hQHLGQkYpVddhzhK3tPiR8VPGqrDlLac=; b=U+4FG+fY8t05ED6tIRPav8b0t+sTJTkCT0lWwK2wLf0DZp7sM/V2HjWDcZGpBu8go/oSevB3Wsn+O3havb0CRUHz0SrTuISs3PS3mxQvTMyhLLUISNreAwY6wpPZ/Dm7b5uwSwQXiaCOSEGunjFA6nsDZkIuzNaYQKtspwySVuI= ARC-Authentication-Results: i=1; mx.zohomail.eu; spf=pass smtp.mailfrom=philipp@uvos.xyz; dmarc=pass header.from= header.from= Received: from localhost.localdomain (ip-95-222-215-9.hsi15.unitymediagroup.de [95.222.215.9]) by mx.zoho.eu with SMTPS id 1610919718953679.2994000138575; Sun, 17 Jan 2021 22:41:58 +0100 (CET) Date: Sun, 17 Jan 2021 22:41:58 +0100 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 1/5] power: supply: cpcap-charger: get the battery inserted infomation from cpcap-battery Message-Id: <20210117224158.f0ac792da5f480a660ff3c89@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 | 41 ++++++++++++++-------------- 1 file changed, 21 insertions(+), 20 deletions(-) diff --git a/drivers/power/supply/cpcap-charger.c b/drivers/power/supply/cpcap-charger.c index 823d666f09e0..152090faf5b2 100644 --- a/drivers/power/supply/cpcap-charger.c +++ b/drivers/power/supply/cpcap-charger.c @@ -26,8 +26,8 @@ #include #include #include -#include #include +#include #include /* @@ -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; @@ -696,11 +679,29 @@ 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_phandle(ddata->dev->of_node, "battery"); + if (IS_ERR_OR_NULL(battery)) { + dev_err(ddata->dev, "battery described by phandle 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;