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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D0453C433F5 for ; Sun, 14 Nov 2021 17:09:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AFACD6109E for ; Sun, 14 Nov 2021 17:09:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236204AbhKNRLv (ORCPT ); Sun, 14 Nov 2021 12:11:51 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:37925 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236236AbhKNRHl (ORCPT ); Sun, 14 Nov 2021 12:07:41 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1636909487; 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=VkrzRyLpI/vm0BtNuQueusLpeyS5Qzu5q0EpoAb3tQo=; b=iUw2v1+612eLMS67+AZMyp6s+L5ev88xQo124YGVPSR+xeLS8DIplFZj7gwoTi5IHeRzn5 W5NO3VFERxjgOHfdSVnDHGz2aH5+3qybzdIrFhVXx+KN3KrmCbQCpUmOJLdVxs6ZQgEevp 9C9CzPbthVgtmpBGGvtzBnZYMJ3fz50= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-219-zDr9d-1sPKOZe8rtTdVxDQ-1; Sun, 14 Nov 2021 12:04:44 -0500 X-MC-Unique: zDr9d-1sPKOZe8rtTdVxDQ-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 58C5D1080865; Sun, 14 Nov 2021 17:04:41 +0000 (UTC) Received: from x1.localdomain (unknown [10.39.192.93]) by smtp.corp.redhat.com (Postfix) with ESMTP id E49291346F; Sun, 14 Nov 2021 17:04:37 +0000 (UTC) From: Hans de Goede To: "Rafael J . Wysocki" , Mika Westerberg , Mark Gross , Andy Shevchenko , Wolfram Sang , Sebastian Reichel , MyungJoo Ham , Chanwoo Choi , Ard Biesheuvel Cc: Hans de Goede , Len Brown , linux-acpi@vger.kernel.org, Yauhen Kharuzhy , Tsuchiya Yuto , platform-driver-x86@vger.kernel.org, linux-i2c@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org Subject: [PATCH v2 16/20] extcon: intel-cht-wc: Use new intel_cht_wc_get_model() helper Date: Sun, 14 Nov 2021 18:03:31 +0100 Message-Id: <20211114170335.66994-17-hdegoede@redhat.com> In-Reply-To: <20211114170335.66994-1-hdegoede@redhat.com> References: <20211114170335.66994-1-hdegoede@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The CHT_WC_VBUS_GPIO_CTLO GPIO actually driving an external 5V Vboost converter for Vbus depends on the board on which the Cherry Trail - Whiskey Cove PMIC is actually used. Since the information about the exact PMIC setup is necessary in other places too, the drivers/mfd/intel_soc_pmic_chtwc.c code now has a new intel_cht_wc_get_model() helper. Only poke the CHT_WC_VBUS_GPIO_CTLO GPIO if this new helper returns INTEL_CHT_WC_GPD_WIN_POCKET, which indicates the Type-C (with PD and DP-altmode) setup used on the GPD pocket and GPD win; and on which this GPIO actually controls an external 5V Vboost converter. Signed-off-by: Hans de Goede --- drivers/extcon/extcon-intel-cht-wc.c | 35 +++++++++++++++++----------- 1 file changed, 21 insertions(+), 14 deletions(-) diff --git a/drivers/extcon/extcon-intel-cht-wc.c b/drivers/extcon/extcon-intel-cht-wc.c index 771f6f4cf92e..a5aeeecc44fb 100644 --- a/drivers/extcon/extcon-intel-cht-wc.c +++ b/drivers/extcon/extcon-intel-cht-wc.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include @@ -358,20 +359,26 @@ static int cht_wc_extcon_probe(struct platform_device *pdev) if (IS_ERR(ext->edev)) return PTR_ERR(ext->edev); - /* - * When a host-cable is detected the BIOS enables an external 5v boost - * converter to power connected devices there are 2 problems with this: - * 1) This gets seen by the external battery charger as a valid Vbus - * supply and it then tries to feed Vsys from this creating a - * feedback loop which causes aprox. 300 mA extra battery drain - * (and unless we drive the external-charger-disable pin high it - * also tries to charge the battery causing even more feedback). - * 2) This gets seen by the pwrsrc block as a SDP USB Vbus supply - * Since the external battery charger has its own 5v boost converter - * which does not have these issues, we simply turn the separate - * external 5v boost converter off and leave it off entirely. - */ - cht_wc_extcon_set_5v_boost(ext, false); + switch (intel_cht_wc_get_model()) { + case INTEL_CHT_WC_GPD_WIN_POCKET: + /* + * When a host-cable is detected the BIOS enables an external 5v boost + * converter to power connected devices there are 2 problems with this: + * 1) This gets seen by the external battery charger as a valid Vbus + * supply and it then tries to feed Vsys from this creating a + * feedback loop which causes aprox. 300 mA extra battery drain + * (and unless we drive the external-charger-disable pin high it + * also tries to charge the battery causing even more feedback). + * 2) This gets seen by the pwrsrc block as a SDP USB Vbus supply + * Since the external battery charger has its own 5v boost converter + * which does not have these issues, we simply turn the separate + * external 5v boost converter off and leave it off entirely. + */ + cht_wc_extcon_set_5v_boost(ext, false); + break; + default: + break; + } /* Enable sw control */ ret = cht_wc_extcon_sw_control(ext, true); -- 2.31.1