From patchwork Sun Apr 30 16:57:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 1775362 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-pwm-owner@vger.kernel.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=hNSksyL3; dkim-atps=neutral Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4Q8XcW49sLz1ydW for ; Mon, 1 May 2023 02:59:07 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230416AbjD3Q7D (ORCPT ); Sun, 30 Apr 2023 12:59:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37234 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230272AbjD3Q7C (ORCPT ); Sun, 30 Apr 2023 12:59:02 -0400 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 76F911BFF for ; Sun, 30 Apr 2023 09:58:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1682873900; 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=mCBm5jOnhjJEt6pe1UKwQEu4teSD01GVaLjt+SyOQmE=; b=hNSksyL3wWt5bOXvCfL6paVn/unOUIrZSGzeIenOpbao49G7rpddIg72zKQHPU6RVlm5/d 9jvEFRLcTv6vBpo9B2RUN884ft+Um0re9BgVURVi/4ZqHyTR3Apz+izW7JEscCkC8+JVe+ zjQoPGjbXQD2RXz+tW/ON+bd5wI1LYI= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-641-lf4Ik5L4OJSoaWzigonaxA-1; Sun, 30 Apr 2023 12:58:19 -0400 X-MC-Unique: lf4Ik5L4OJSoaWzigonaxA-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 769212A59553; Sun, 30 Apr 2023 16:58:18 +0000 (UTC) Received: from localhost.localdomain (unknown [10.39.192.59]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5A1832166B26; Sun, 30 Apr 2023 16:58:17 +0000 (UTC) From: Hans de Goede To: =?utf-8?q?Ilpo_J=C3=A4rvinen?= , Andy Shevchenko , Thierry Reding , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= Cc: Hans de Goede , Yauhen Kharuzhy , platform-driver-x86@vger.kernel.org, linux-pwm@vger.kernel.org Subject: [PATCH v2 01/19] pwm: Export pwm_add_table() / pwm_remove_table() Date: Sun, 30 Apr 2023 18:57:49 +0200 Message-Id: <20230430165807.472798-2-hdegoede@redhat.com> In-Reply-To: <20230430165807.472798-1-hdegoede@redhat.com> References: <20230430165807.472798-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.6 X-Spam-Status: No, score=-2.3 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-pwm@vger.kernel.org Lenovo Yoga Book 1 (yb1-x90f/l) models have a backlit keyboard where the brightness is directly controlled by one of the Intel Cherry Trail SoCs PWM controllers. To control the backlight the drivers/platform/lenovo-yogabook.c needs to add a pwm_lookup table entry so that it can call pwm_get() to get a reference to the PWM controller. The lenovo-yogabook driver can be build as a module, export pwm_add_table() and pwm_remove_table() so that the lenovo-yogabook driver can use them when build as a module. Signed-off-by: Hans de Goede --- drivers/pwm/core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index 474725714a05..c66daac6154f 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -881,6 +881,7 @@ void pwm_add_table(struct pwm_lookup *table, size_t num) mutex_unlock(&pwm_lookup_lock); } +EXPORT_SYMBOL_GPL(pwm_add_table); /** * pwm_remove_table() - unregister PWM device consumers @@ -898,6 +899,7 @@ void pwm_remove_table(struct pwm_lookup *table, size_t num) mutex_unlock(&pwm_lookup_lock); } +EXPORT_SYMBOL_GPL(pwm_remove_table); /** * pwm_get() - look up and request a PWM device