From patchwork Fri Jan 20 11:45:21 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: 645478 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 2FC88C25B50 for ; Fri, 20 Jan 2023 11:47:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229883AbjATLry (ORCPT ); Fri, 20 Jan 2023 06:47:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55554 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230016AbjATLrv (ORCPT ); Fri, 20 Jan 2023 06:47:51 -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 ESMTPS id 5E535BAF3F for ; Fri, 20 Jan 2023 03:46:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1674215177; 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=sgkJ8gjvAZ2oCUIXyOJukkzBVDQc7aYrsHkcYUv9HyA=; b=MnRNFhcIFlDpQ9OV48ynt8IYXuAJfOcjiKsbTh+8AU6O/HYgtsMF4tKvx6vDhSQfdXw1ui uVSRSlbg4MoZHrak+NcuFPfb7QFJwrLDW9Mm1e22sWNDyQUee2Pr52ZiTpOj3O69MT4GWb Az1akLcLeBPHf3fpWwIOHtX6yMFjH/I= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-369-kKUioZ9rO-SndU8ykS6VTg-1; Fri, 20 Jan 2023 06:46:06 -0500 X-MC-Unique: kKUioZ9rO-SndU8ykS6VTg-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com [10.11.54.7]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 94BD7801779; Fri, 20 Jan 2023 11:46:05 +0000 (UTC) Received: from shalem.redhat.com (unknown [10.39.195.101]) by smtp.corp.redhat.com (Postfix) with ESMTP id 89710140EBF6; Fri, 20 Jan 2023 11:46:01 +0000 (UTC) From: Hans de Goede To: Mark Gross , Andy Shevchenko , Pavel Machek , Lee Jones , Linus Walleij , Daniel Scally , Laurent Pinchart , Mauro Carvalho Chehab , Sakari Ailus Cc: Hans de Goede , platform-driver-x86@vger.kernel.org, linux-leds@vger.kernel.org, linux-gpio@vger.kernel.org, Kate Hsuan , Mark Pearson , Andy Yeh , Hao Yao , linux-media@vger.kernel.org Subject: [PATCH v5 08/11] platform/x86: int3472/discrete: Refactor GPIO to sensor mapping Date: Fri, 20 Jan 2023 12:45:21 +0100 Message-Id: <20230120114524.408368-9-hdegoede@redhat.com> In-Reply-To: <20230120114524.408368-1-hdegoede@redhat.com> References: <20230120114524.408368-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.7 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Add a helper function to map the type returned by the _DSM method to a function name + the default polarity for that function. And fold the INT3472_GPIO_TYPE_RESET and INT3472_GPIO_TYPE_POWERDOWN cases into a single generic case. This is a preparation patch for further GPIO mapping changes. Signed-off-by: Hans de Goede --- Changes in v3: - Add break to default case Changes in v2: - Make the helper function doing the type -> function mapping, also return a default polarity for the function. --- drivers/platform/x86/intel/int3472/discrete.c | 45 +++++++++++++++---- 1 file changed, 36 insertions(+), 9 deletions(-) diff --git a/drivers/platform/x86/intel/int3472/discrete.c b/drivers/platform/x86/intel/int3472/discrete.c index c42c3faa2c32..708d51f9b41d 100644 --- a/drivers/platform/x86/intel/int3472/discrete.c +++ b/drivers/platform/x86/intel/int3472/discrete.c @@ -188,6 +188,36 @@ static int skl_int3472_map_gpio_to_clk(struct int3472_discrete_device *int3472, return 0; } +static void int3472_get_func_and_polarity(u8 type, const char **func, u32 *polarity) +{ + switch (type) { + case INT3472_GPIO_TYPE_RESET: + *func = "reset"; + *polarity = GPIO_ACTIVE_LOW; + break; + case INT3472_GPIO_TYPE_POWERDOWN: + *func = "powerdown"; + *polarity = GPIO_ACTIVE_LOW; + break; + case INT3472_GPIO_TYPE_CLK_ENABLE: + *func = "clk-enable"; + *polarity = GPIO_ACTIVE_HIGH; + break; + case INT3472_GPIO_TYPE_PRIVACY_LED: + *func = "privacy-led"; + *polarity = GPIO_ACTIVE_HIGH; + break; + case INT3472_GPIO_TYPE_POWER_ENABLE: + *func = "power-enable"; + *polarity = GPIO_ACTIVE_HIGH; + break; + default: + *func = "unknown"; + *polarity = GPIO_ACTIVE_HIGH; + break; + } +} + /** * skl_int3472_handle_gpio_resources: Map PMIC resources to consuming sensor * @ares: A pointer to a &struct acpi_resource @@ -227,6 +257,8 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares, struct acpi_resource_gpio *agpio; union acpi_object *obj; const char *err_msg; + const char *func; + u32 polarity; int ret; u8 type; @@ -250,19 +282,14 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares, type = obj->integer.value & 0xff; + int3472_get_func_and_polarity(type, &func, &polarity); + switch (type) { case INT3472_GPIO_TYPE_RESET: - ret = skl_int3472_map_gpio_to_sensor(int3472, agpio, "reset", - GPIO_ACTIVE_LOW); - if (ret) - err_msg = "Failed to map reset pin to sensor\n"; - - break; case INT3472_GPIO_TYPE_POWERDOWN: - ret = skl_int3472_map_gpio_to_sensor(int3472, agpio, "powerdown", - GPIO_ACTIVE_LOW); + ret = skl_int3472_map_gpio_to_sensor(int3472, agpio, func, polarity); if (ret) - err_msg = "Failed to map powerdown pin to sensor\n"; + err_msg = "Failed to map GPIO pin to sensor\n"; break; case INT3472_GPIO_TYPE_CLK_ENABLE: