From patchwork Sun Nov 27 18:02:31 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 628941 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 25C6FC352A1 for ; Sun, 27 Nov 2022 18:03:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229518AbiK0SDu (ORCPT ); Sun, 27 Nov 2022 13:03:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60450 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229538AbiK0SDs (ORCPT ); Sun, 27 Nov 2022 13:03:48 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EBA28D94 for ; Sun, 27 Nov 2022 10:02:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1669572173; 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=q8kJwWQaKJBkNmx8PHMokTdpIeK6mUWMQuiJmZufQsk=; b=ZNlfigVB2pUm9Q1Uru/z1vcQCvwTMZ0tZIVei8OR/WxW9FjHcHnA8brwebvsueWGzbHP+1 +j8Z9PS8/0t+Z3iutXzExMITRXvghijlDywjRKZbICiXJaWNxxU9jjk/lambnDhyFOGC+7 yUWDW+ca/vSAJYQs09ME6lmOPgAUZSo= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-509-SjXBSJVUM-i2XQ1v2er9dQ-1; Sun, 27 Nov 2022 13:02:51 -0500 X-MC-Unique: SjXBSJVUM-i2XQ1v2er9dQ-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com [10.11.54.7]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 209D8101A528; Sun, 27 Nov 2022 18:02:51 +0000 (UTC) Received: from localhost.localdomain (unknown [10.39.192.80]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6E1BA140EBF5; Sun, 27 Nov 2022 18:02:50 +0000 (UTC) From: Hans de Goede To: Sebastian Reichel , Marek Vasut Cc: Hans de Goede , linux-pm@vger.kernel.org Subject: [PATCH 08/10] power: supply: bq25890: Support boards with more then one charger IC Date: Sun, 27 Nov 2022 19:02:31 +0100 Message-Id: <20221127180233.103678-9-hdegoede@redhat.com> In-Reply-To: <20221127180233.103678-1-hdegoede@redhat.com> References: <20221127180233.103678-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.7 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Some devices, such as the Lenovo Yoga Tab 3 Pro (YT3-X90F) have multiple batteries with a separate bq25890 charger for each battery. This requires the bq25890_charger code to use a unique name per registered power_supply class device, rather then hardcoding "bq25890-charger" as power_supply class device name. Add a "-%d" prefix to the name, allocated through idr in the same way as several other power_supply drivers are already doing this. Note this also updates: drivers/platform/x86/x86-android-tablets.c which refers to the charger by power_supply-class-device-name for the purpose of setting the "supplied-from" property on the fuel-gauge to this name. Signed-off-by: Hans de Goede --- As the subsystem maintainer for drivers/platform/x86 I'm fine with the small x86-android-tablets.c being merged through the linux-power-supply tree. Also note I did a full grep for "bq25890-charger" and x86-android-tablets.c is the only file in the kernel tree referring to this name. --- drivers/platform/x86/x86-android-tablets.c | 2 +- drivers/power/supply/bq25890_charger.c | 29 +++++++++++++++++++--- 2 files changed, 26 insertions(+), 5 deletions(-) diff --git a/drivers/platform/x86/x86-android-tablets.c b/drivers/platform/x86/x86-android-tablets.c index dd933cf32b38..916e37a4f85e 100644 --- a/drivers/platform/x86/x86-android-tablets.c +++ b/drivers/platform/x86/x86-android-tablets.c @@ -187,7 +187,7 @@ struct x86_dev_info { /* Generic / shared charger / battery settings */ static const char * const tusb1211_chg_det_psy[] = { "tusb1211-charger-detect" }; static const char * const bq24190_psy[] = { "bq24190-charger" }; -static const char * const bq25890_psy[] = { "bq25890-charger" }; +static const char * const bq25890_psy[] = { "bq25890-charger-0" }; static const struct property_entry fg_bq24190_supply_props[] = { PROPERTY_ENTRY_STRING_ARRAY("supplied-from", bq24190_psy), diff --git a/drivers/power/supply/bq25890_charger.c b/drivers/power/supply/bq25890_charger.c index 03e31c5b0df5..a0e20cbadeb8 100644 --- a/drivers/power/supply/bq25890_charger.c +++ b/drivers/power/supply/bq25890_charger.c @@ -108,6 +108,9 @@ struct bq25890_device { struct i2c_client *client; struct device *dev; struct power_supply *charger; + struct power_supply_desc desc; + char name[28]; /* "bq25890-charger-%d" */ + int id; struct usb_phy *usb_phy; struct notifier_block usb_nb; @@ -129,6 +132,9 @@ struct bq25890_device { struct mutex lock; /* protect state data */ }; +static DEFINE_IDR(bq25890_id); +static DEFINE_MUTEX(bq25890_id_mutex); + static const struct regmap_range bq25890_readonly_reg_ranges[] = { regmap_reg_range(0x0b, 0x0c), regmap_reg_range(0x0e, 0x13), @@ -989,7 +995,6 @@ static char *bq25890_charger_supplied_to[] = { }; static const struct power_supply_desc bq25890_power_supply_desc = { - .name = "bq25890-charger", .type = POWER_SUPPLY_TYPE_USB, .properties = bq25890_power_supply_props, .num_properties = ARRAY_SIZE(bq25890_power_supply_props), @@ -1003,12 +1008,21 @@ static int bq25890_power_supply_init(struct bq25890_device *bq) { struct power_supply_config psy_cfg = { .drv_data = bq, }; + /* Get ID for the device */ + mutex_lock(&bq25890_id_mutex); + bq->id = idr_alloc(&bq25890_id, bq, 0, 0, GFP_KERNEL); + mutex_unlock(&bq25890_id_mutex); + if (bq->id < 0) + return bq->id; + + snprintf(bq->name, sizeof(bq->name), "bq25890-charger-%d", bq->id); + bq->desc = bq25890_power_supply_desc; + bq->desc.name = bq->name; + psy_cfg.supplied_to = bq25890_charger_supplied_to; psy_cfg.num_supplicants = ARRAY_SIZE(bq25890_charger_supplied_to); - bq->charger = devm_power_supply_register(bq->dev, - &bq25890_power_supply_desc, - &psy_cfg); + bq->charger = devm_power_supply_register(bq->dev, &bq->desc, &psy_cfg); return PTR_ERR_OR_ZERO(bq->charger); } @@ -1354,6 +1368,12 @@ static void bq25890_non_devm_cleanup(void *data) struct bq25890_device *bq = data; cancel_delayed_work_sync(&bq->pump_express_work); + + if (bq->id >= 0) { + mutex_lock(&bq25890_id_mutex); + idr_remove(&bq25890_id, bq->id); + mutex_unlock(&bq25890_id_mutex); + } } static int bq25890_probe(struct i2c_client *client) @@ -1368,6 +1388,7 @@ static int bq25890_probe(struct i2c_client *client) bq->client = client; bq->dev = dev; + bq->id = -1; mutex_init(&bq->lock); INIT_DELAYED_WORK(&bq->pump_express_work, bq25890_pump_express_work);