From patchwork Mon Sep 4 13:47:02 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 809685 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-i2c-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3xmB4J0m8sz9t2c for ; Mon, 4 Sep 2017 23:47:44 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753789AbdIDNrO (ORCPT ); Mon, 4 Sep 2017 09:47:14 -0400 Received: from mx1.redhat.com ([209.132.183.28]:60690 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753574AbdIDNrM (ORCPT ); Mon, 4 Sep 2017 09:47:12 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 936C8C052435; Mon, 4 Sep 2017 13:47:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 936C8C052435 Authentication-Results: ext-mx08.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx08.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=hdegoede@redhat.com Received: from shalem.localdomain.com (unknown [10.36.118.49]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6F394C0D87; Mon, 4 Sep 2017 13:47:09 +0000 (UTC) From: Hans de Goede To: Darren Hart , Andy Shevchenko , Wolfram Sang , Guenter Roeck , Heikki Krogerus Cc: Hans de Goede , platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org Subject: [PATCH v5 2/3] i2c-cht-wc: Add device-properties for fusb302 integration Date: Mon, 4 Sep 2017 15:47:02 +0200 Message-Id: <20170904134703.25663-3-hdegoede@redhat.com> In-Reply-To: <20170904134703.25663-1-hdegoede@redhat.com> References: <20170904134703.25663-1-hdegoede@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.32]); Mon, 04 Sep 2017 13:47:11 +0000 (UTC) Sender: linux-i2c-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Add device-properties to make the bq24292i charger connected to the bus get its input-current-limit from the fusb302 Type-C port controller which is used on boards with the cht-wc PMIC, as well as regulator_init_data for the 5V boost converter on the bq24292i. Since this means we now hook-up the bq24292i to the fusb302 Type-C port controller add a check for the ACPI device which instantiates the fusb302. Signed-off-by: Hans de Goede --- Changes in v2: -Set board_info.dev_name -Define and pass regulator_init_data for the bq24292i -Add a check for the ACPI device which instantiates the fusb302 Changes in v4: -Drop the ti,input-current-limit-from-supplier property on the bq24292i this is the default now --- drivers/i2c/busses/Kconfig | 5 ++++ drivers/i2c/busses/i2c-cht-wc.c | 51 +++++++++++++++++++++++++++++++++++------ 2 files changed, 49 insertions(+), 7 deletions(-) diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index 79c33817e412..272ef10fb629 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -197,6 +197,11 @@ config I2C_CHT_WC SMBus controller found in the Intel Cherry Trail Whiskey Cove PMIC found on some Intel Cherry Trail systems. + Note this controller is hooked up to a TI bq24292i charger-IC, + combined with a FUSB302 Type-C port-controller as such it is advised + to also select CONFIG_CHARGER_BQ24190=m and CONFIG_TYPEC_FUSB302=m + (the fusb302 driver currently is in drivers/staging). + config I2C_NFORCE2 tristate "Nvidia nForce2, nForce3 and nForce4" depends on PCI diff --git a/drivers/i2c/busses/i2c-cht-wc.c b/drivers/i2c/busses/i2c-cht-wc.c index 21312eed09e4..82e331db8d98 100644 --- a/drivers/i2c/busses/i2c-cht-wc.c +++ b/drivers/i2c/busses/i2c-cht-wc.c @@ -16,6 +16,7 @@ * GNU General Public License for more details. */ +#include #include #include #include @@ -25,6 +26,7 @@ #include #include #include +#include #include #define CHT_WC_I2C_CTRL 0x5e24 @@ -232,13 +234,35 @@ static const struct irq_chip cht_wc_i2c_irq_chip = { .name = "cht_wc_ext_chrg_irq_chip", }; +static const char * const bq24190_suppliers[] = { "fusb302-typec-source" }; + static const struct property_entry bq24190_props[] = { - PROPERTY_ENTRY_STRING("extcon-name", "cht_wcove_pwrsrc"), + PROPERTY_ENTRY_STRING_ARRAY("supplied-from", bq24190_suppliers), PROPERTY_ENTRY_BOOL("omit-battery-class"), PROPERTY_ENTRY_BOOL("disable-reset"), { } }; +static struct regulator_consumer_supply fusb302_consumer = { + .supply = "vbus", + /* Must match fusb302 dev_name in intel_cht_int33fe.c */ + .dev_name = "i2c-fusb302", +}; + +static const struct regulator_init_data bq24190_vbus_init_data = { + .constraints = { + /* The name is used in intel_cht_int33fe.c do not change. */ + .name = "cht_wc_usb_typec_vbus", + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + }, + .consumer_supplies = &fusb302_consumer, + .num_consumer_supplies = 1, +}; + +static struct bq24190_platform_data bq24190_pdata = { + .regulator_init_data = &bq24190_vbus_init_data, +}; + static int cht_wc_i2c_adap_i2c_probe(struct platform_device *pdev) { struct intel_soc_pmic *pmic = dev_get_drvdata(pdev->dev.parent); @@ -246,7 +270,9 @@ static int cht_wc_i2c_adap_i2c_probe(struct platform_device *pdev) struct i2c_board_info board_info = { .type = "bq24190", .addr = 0x6b, + .dev_name = "bq24190", .properties = bq24190_props, + .platform_data = &bq24190_pdata, }; int ret, reg, irq; @@ -314,11 +340,21 @@ static int cht_wc_i2c_adap_i2c_probe(struct platform_device *pdev) if (ret) goto remove_irq_domain; - board_info.irq = adap->client_irq; - adap->client = i2c_new_device(&adap->adapter, &board_info); - if (!adap->client) { - ret = -ENOMEM; - goto del_adapter; + /* + * Normally the Whiskey Cove PMIC is paired with a TI bq24292i charger, + * connected to this i2c bus, and a max17047 fuel-gauge and a fusb302 + * USB Type-C controller connected to another i2c bus. In this setup + * the max17047 and fusb302 devices are enumerated through an INT33FE + * ACPI device. If this device is present register an i2c-client for + * the TI bq24292i charger. + */ + if (acpi_dev_present("INT33FE", NULL, -1)) { + board_info.irq = adap->client_irq; + adap->client = i2c_new_device(&adap->adapter, &board_info); + if (!adap->client) { + ret = -ENOMEM; + goto del_adapter; + } } platform_set_drvdata(pdev, adap); @@ -335,7 +371,8 @@ static int cht_wc_i2c_adap_i2c_remove(struct platform_device *pdev) { struct cht_wc_i2c_adap *adap = platform_get_drvdata(pdev); - i2c_unregister_device(adap->client); + if (adap->client) + i2c_unregister_device(adap->client); i2c_del_adapter(&adap->adapter); irq_domain_remove(adap->irq_domain);