From patchwork Thu Mar 7 22:05:10 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?TsOtY29sYXMgRi4gUi4gQS4gUHJhZG8=?= X-Patchwork-Id: 778749 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 89E0C130AD0; Thu, 7 Mar 2024 22:06:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709849166; cv=none; b=JSuM/DXvw2KSyB5RwABfgXXzYuKIgYu2wDqKT5cUid1qmyB+p1O+ywS/3myWXj/5L62mCV3YHHNaUIuk1VhYRNzgLF0KY6QcyWDElNRhIHSxRCciMbiOdjOMRdMkVy80zE+63j5RGU3r7dAOahVrA4WdJSn9NAUIO0LZg8BXVPA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709849166; c=relaxed/simple; bh=OhHJ41vSOTMo2bLACgKWhLDz7+2yE1z6/TA3Fn3DXUk=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=rUIpT5UjGavH8uuMyitRQZMQO6lCYbqWrkZ4C0jzOyrVGG5404zuh0z/sh9i2zOJ/jGNsqwlWTU+L1Z79WLt2YyjNbFCkJP8mFRtMSFtYHNU0ghRN7CrfD+lcmkSnKK0g1RDrSnoCcAHpFmimAc1Jn+97/rblEfhrgLF0a046Kc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=kWAIt/jr; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="kWAIt/jr" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1709849161; bh=OhHJ41vSOTMo2bLACgKWhLDz7+2yE1z6/TA3Fn3DXUk=; h=From:Date:Subject:To:Cc:From; b=kWAIt/jr9o4MOnRMCXoICYinsb6YSTG9cm/Plim3+otNta5XVB36sskdeW3OEUNbx B/rrNm+U7kpuIK7EejeMlPEuZfxqydBAehqBn4Pjwm/k9imOIMTMgnH7pPxY7d/lq7 RAxCeGazTNy808CBIsvHOHyxTIvn4oqpL5eFTPPnDtHkzFkZ2TKVAg1+URApmtrFBX Ke4IWXfD6LV0hdQ/ZYIokfn+m0KdnmO23MFvzz+FsDVr8whW6JGtzwRXT7Gt6FY0V1 p5t2XHsR0U/WVAMoP0X7O10QhkDIl7SJXq0i6SAYYYtentWpA0XjSU3ck+Gg0h2I6H gI7A4j+SbgpIg== Received: from [192.168.1.3] (zone.collabora.co.uk [167.235.23.81]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: nfraprado) by madrid.collaboradmins.com (Postfix) with ESMTPSA id CA24637804B2; Thu, 7 Mar 2024 22:06:00 +0000 (UTC) From: =?utf-8?b?TsOtY29sYXMgRi4gUi4gQS4gUHJhZG8=?= Date: Thu, 07 Mar 2024 17:05:10 -0500 Subject: [PATCH] power: supply: sbs-battery: Handle unsupported PROP_TIME_TO_EMPTY_NOW Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240307-sbs-time-empty-now-error-v1-1-18d0f8702330@collabora.com> X-B4-Tracking: v=1; b=H4sIABU66mUC/x3MOQqAQAxA0atIagNjRhC8ili4RE3hjCTignh3B 8tX/P+AsQob1NkDyoeYxJBQ5BkMSxdmRhmTgRyVzrsKrTfcZWXkddtvDPFEVo2KnqgfXFWOfiJ I+aY8yfWvm/Z9P13wf55qAAAA To: Sebastian Reichel Cc: kernel@collabora.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, =?utf-8?b?TsOtY29sYXMgRi4gUi4gQS4gUHJhZG8=?= X-Mailer: b4 0.13.0 Despite the RunTimeToEmpty() (0x11) function being defined in the SBS specification as required, it seems that not all batteries implement it. On platforms with such batteries, reading the property will cause an error to be printed: power_supply sbs-8-000b: driver failed to report `time_to_empty_now' property: -5 This not only pollutes the log, distracting from real problems on the device, but also prevents the uevent file from being read since it contains all properties, including the faulty one. The following table summarizes the findings for a handful of platforms: Platform Status Manufacturer Model ------------------------------------------------------------------------ mt8186-corsola-steelix-sku131072 OK BYD L22B3PG0 mt8195-cherry-tomato-r2 NOT OK PANASON AP16L5J mt8192-asurada-spherion-r0 NOT OK PANASON AP15O5L mt8183-kukui-jacuzzi-juniper-sku16 NOT OK LGC KT0 AP16L8J mt8173-elm-hana OK Sunwoda L18D3PG1 sc7180-trogdor-lazor-limozeen-nots-r5 NOT OK Murata AP18C4K sc7180-trogdor-kingoftown NOT OK 333-AC-0D-A GG02047XL rk3399-gru-kevin OK SDI 4352D51 Identify during probe, based on the battery model, if this is one of the quirky batteries, and if so, don't register the POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW property. Signed-off-by: Nícolas F. R. A. Prado --- drivers/power/supply/sbs-battery.c | 45 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) --- base-commit: 11afac187274a6177a7ac82997f8691c0f469e41 change-id: 20240307-sbs-time-empty-now-error-322bc074d3f2 Best regards, diff --git a/drivers/power/supply/sbs-battery.c b/drivers/power/supply/sbs-battery.c index a6c204c08232..85ff331cf87a 100644 --- a/drivers/power/supply/sbs-battery.c +++ b/drivers/power/supply/sbs-battery.c @@ -1112,6 +1112,49 @@ static const struct power_supply_desc sbs_default_desc = { .external_power_changed = sbs_external_power_changed, }; +static const char * const unsupported_time_to_empty_now_models[] = { + "AP16L5J", "AP15O5L", "AP16L8J", "AP18C4K", "GG02047XL" +}; + +static void sbs_remove_unsupported_properties(struct power_supply_config *psy_cfg, + struct power_supply_desc *sbs_desc) +{ + enum power_supply_property *new_properties; + struct sbs_info *chip = psy_cfg->drv_data; + bool missing_time_to_empty_now = false; + const char *model_name; + unsigned int new_num_properties; + unsigned int i = 0, j = 0; + + model_name = sbs_get_constant_string(chip, POWER_SUPPLY_PROP_MODEL_NAME); + if (IS_ERR(model_name)) + return; + + for (i = 0; i < ARRAY_SIZE(unsupported_time_to_empty_now_models); i++) { + if (!strcmp(model_name, unsupported_time_to_empty_now_models[i])) { + missing_time_to_empty_now = true; + break; + } + } + + if (!missing_time_to_empty_now) + return; + + new_num_properties = ARRAY_SIZE(sbs_properties) - 1; + new_properties = devm_kzalloc(&chip->client->dev, new_num_properties * sizeof(sbs_properties[0]), GFP_KERNEL); + + for (i = 0; i < sbs_desc->num_properties; i++) { + if (sbs_desc->properties[i] == POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW) + continue; + + new_properties[j] = sbs_desc->properties[i]; + j++; + } + + sbs_desc->properties = new_properties; + sbs_desc->num_properties = new_num_properties; +}; + static int sbs_probe(struct i2c_client *client) { struct sbs_info *chip; @@ -1210,6 +1253,8 @@ static int sbs_probe(struct i2c_client *client) if (rc) return rc; + sbs_remove_unsupported_properties(&psy_cfg, sbs_desc); + chip->power_supply = devm_power_supply_register(&client->dev, sbs_desc, &psy_cfg); if (IS_ERR(chip->power_supply))