From mboxrd@z Thu Jan 1 00:00:00 1970 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 43A63C433EF for ; Wed, 23 Feb 2022 13:42:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241027AbiBWNnK (ORCPT ); Wed, 23 Feb 2022 08:43:10 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41390 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241014AbiBWNnG (ORCPT ); Wed, 23 Feb 2022 08:43:06 -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 ESMTP id 3E6667E08F for ; Wed, 23 Feb 2022 05:42:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1645623757; 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=nrEfsZuwsjWuVlBFFkYGaMRJ/6UsClz6L7Lhouykops=; b=G/BIYgyu5ukx4xW4gAiGbPXXeljmmdiV/9R1Gqbp5UdZBMbDN1NODw50mWNy11AGpZ10Ov 53/XnpcqZMIuvpvPYs0vTdfOSbge1kTZOv3SiV2RAbvj+xMrbjiXxOg7flGqhbFNtEIhgT jvU1NUUr5DSdl6guS8Vc0c8OdxNosr4= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-371-zQcL41JvN3-yxFLJOnTLbw-1; Wed, 23 Feb 2022 08:42:34 -0500 X-MC-Unique: zQcL41JvN3-yxFLJOnTLbw-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 0AD47804B8A; Wed, 23 Feb 2022 13:42:33 +0000 (UTC) Received: from localhost.localdomain (unknown [10.39.195.37]) by smtp.corp.redhat.com (Postfix) with ESMTP id 1804427BC4; Wed, 23 Feb 2022 13:42:31 +0000 (UTC) From: Hans de Goede To: Lee Jones Cc: Hans de Goede , patches@opensource.cirrus.com, linux-kernel@vger.kernel.org Subject: [PATCH 2/2] mfd: arizona-spi: Add Android board ACPI table handling Date: Wed, 23 Feb 2022 14:42:22 +0100 Message-Id: <20220223134222.730886-2-hdegoede@redhat.com> In-Reply-To: <20220223134222.730886-1-hdegoede@redhat.com> References: <20220223134222.730886-1-hdegoede@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org x86/ACPI boards with an arizona WM5102 codec ship with either Windows or Android as factory installed OS. The ACPI fwnode for the codec on Android boards misses 2 things compared to the Windows boards (this is hardcoded in the Android board kernels): 1. There is no CLKE ACPI method to enabe the 32 KHz clock the codec needs for jack-detection. 2. The GPIOs used by the codec are not listed in the fwnode for the codec. The ACPI tables on x86/ACPI boards shipped with Android being incomplete happens a lot. The special drivers/platform/x86/x86-android-tablets.c module contains DMI based per model handling to compensate for this. This module will enable the 32KHz clock through the pinctrl framework to fix 1. and it will also register a gpio-lookup table for all GPIOs needed by the codec + machine driver, including the GPIOs coming from the codec itself. Add an arizona_spi_acpi_android_probe() function which waits for the x86-android-tablets to have set things up before continue with probing the arizona WM5102 codec. Signed-off-by: Hans de Goede --- drivers/mfd/arizona-spi.c | 34 +++++++++++++++++++++++++++++++++- 1 file changed, 33 insertions(+), 1 deletion(-) diff --git a/drivers/mfd/arizona-spi.c b/drivers/mfd/arizona-spi.c index 238355542ab1..2c686e71db21 100644 --- a/drivers/mfd/arizona-spi.c +++ b/drivers/mfd/arizona-spi.c @@ -81,6 +81,29 @@ static int arizona_spi_acpi_windows_probe(struct arizona *arizona) return 0; } +/* For ACPI tables from boards which ship with Android as factory OS */ +static int arizona_spi_acpi_android_probe(struct arizona *arizona) +{ + int ret; + + /* + * Get the reset GPIO, treating -ENOENT as -EPROBE_DEFER to wait for + * the x86-android-tablets module to register the board specific GPIO + * lookup table. + */ + arizona->pdata.reset = devm_gpiod_get(arizona->dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(arizona->pdata.reset)) { + ret = PTR_ERR(arizona->pdata.reset); + if (ret == -ENOENT) { + dev_info_once(arizona->dev, "Deferring probe till GPIO lookup is registered\n"); + ret = -EPROBE_DEFER; + } + return dev_err_probe(arizona->dev, ret, "getting reset GPIO\n"); + } + + return 0; +} + /* * The AOSP 3.5 mm Headset: Accessory Specification gives the following values: * Function A Play/Pause: 0 ohm @@ -102,9 +125,14 @@ static const struct arizona_micd_range arizona_micd_aosp_ranges[] = { static int arizona_spi_acpi_probe(struct arizona *arizona) { + struct acpi_device *adev = ACPI_COMPANION(arizona->dev); int ret; - ret = arizona_spi_acpi_windows_probe(arizona); + if (acpi_dev_hid_uid_match(adev, "10WM5102", NULL)) + ret = arizona_spi_acpi_android_probe(arizona); + else + ret = arizona_spi_acpi_windows_probe(arizona); + if (ret) return ret; @@ -142,6 +170,10 @@ static const struct acpi_device_id arizona_acpi_match[] = { .id = "WM510205", .driver_data = WM5102, }, + { + .id = "10WM5102", + .driver_data = WM5102, + }, { } }; MODULE_DEVICE_TABLE(acpi, arizona_acpi_match); -- 2.35.1