From patchwork Sat Oct 7 02:12:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hao Yao X-Patchwork-Id: 13412150 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 EDF67E94139 for ; Sat, 7 Oct 2023 02:13:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234050AbjJGCNF (ORCPT ); Fri, 6 Oct 2023 22:13:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58422 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233040AbjJGCNE (ORCPT ); Fri, 6 Oct 2023 22:13:04 -0400 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DE1B7C2; Fri, 6 Oct 2023 19:13:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1696644781; x=1728180781; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=rzHN8yUSG8uSjBkx+O48FATAq6MVtFpsJucGvn1kg4o=; b=fzwu0TCEqDJf4kcf5a79CPRgKmw2K/+wcIQfmym0b/hPPf8RK40K1Rlk DbviLM3LFtQR+1oObO/mwuyj1xWpSgCYNgXjQcW7qS0hIlIMTlapAOcFm Y9c0GdmaUI05k8LzoKGrGVzMIPVIFhwgntMLaiWHk82f7kDMH0yzulwo3 ZARQXPtz0FbBvoQF2+ssMUG2c+HsyQJDicDfIaCCOclY412vnM8Y/2cEl wCE8Opyy+yjv/wL6arPvQNoOvoBEJiVnf3s7FW9We+Q279GyreRFY1H63 FV8AB88pMYtv32kMrqOyjvTi6Y+17cCigYb2cs1DGitU9+RJliJf8k0Km w==; X-IronPort-AV: E=McAfee;i="6600,9927,10855"; a="414869999" X-IronPort-AV: E=Sophos;i="6.03,204,1694761200"; d="scan'208";a="414869999" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Oct 2023 19:12:56 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10855"; a="781857651" X-IronPort-AV: E=Sophos;i="6.03,204,1694761200"; d="scan'208";a="781857651" Received: from haoyao-desk.bj.intel.com ([10.238.232.41]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Oct 2023 19:12:53 -0700 From: Hao Yao To: Dan Scally , djrscally@gmail.com, Hans de Goede , Sakari Ailus Cc: Bingbu Cao , platform-driver-x86@vger.kernel.org, linux-media@vger.kernel.org, Hao Yao , Andy Shevchenko Subject: [PATCH] platform/x86: int3472: Add handshake GPIO function Date: Sat, 7 Oct 2023 10:12:25 +0800 Message-Id: <20231007021225.9240-1-hao.yao@intel.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: platform-driver-x86@vger.kernel.org Handshake pin is used for Lattice MIPI aggregator to enable the camera sensor. After pulled up, recommend to wail ~250ms to get everything ready. Signed-off-by: Hao Yao Reviewed-by: Andy Shevchenko --- drivers/platform/x86/intel/int3472/common.h | 1 + drivers/platform/x86/intel/int3472/discrete.c | 5 +++++ 2 files changed, 6 insertions(+) diff --git a/drivers/platform/x86/intel/int3472/common.h b/drivers/platform/x86/intel/int3472/common.h index 655ae3ec0593..3ad4c72afb45 100644 --- a/drivers/platform/x86/intel/int3472/common.h +++ b/drivers/platform/x86/intel/int3472/common.h @@ -23,6 +23,7 @@ #define INT3472_GPIO_TYPE_POWER_ENABLE 0x0b #define INT3472_GPIO_TYPE_CLK_ENABLE 0x0c #define INT3472_GPIO_TYPE_PRIVACY_LED 0x0d +#define INT3472_GPIO_TYPE_HANDSHAKE 0x12 #define INT3472_PDEV_MAX_NAME_LEN 23 #define INT3472_MAX_SENSOR_GPIOS 3 diff --git a/drivers/platform/x86/intel/int3472/discrete.c b/drivers/platform/x86/intel/int3472/discrete.c index b644ce65c990..4753161b4080 100644 --- a/drivers/platform/x86/intel/int3472/discrete.c +++ b/drivers/platform/x86/intel/int3472/discrete.c @@ -111,6 +111,10 @@ static void int3472_get_func_and_polarity(u8 type, const char **func, u32 *polar *func = "power-enable"; *polarity = GPIO_ACTIVE_HIGH; break; + case INT3472_GPIO_TYPE_HANDSHAKE: + *func = "handshake"; + *polarity = GPIO_ACTIVE_HIGH; + break; default: *func = "unknown"; *polarity = GPIO_ACTIVE_HIGH; @@ -201,6 +205,7 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares, switch (type) { case INT3472_GPIO_TYPE_RESET: case INT3472_GPIO_TYPE_POWERDOWN: + case INT3472_GPIO_TYPE_HANDSHAKE: ret = skl_int3472_map_gpio_to_sensor(int3472, agpio, func, polarity); if (ret) err_msg = "Failed to map GPIO pin to sensor\n";