From patchwork Thu Jun 1 13:17:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Wilczynski, Michal" X-Patchwork-Id: 13263759 Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 105E721CC9 for ; Thu, 1 Jun 2023 13:44:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1685627056; x=1717163056; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=/zOt8Ip/74RNexXI8wybJ/13PRTBt2DlRVAtzxRcwFc=; b=RNCf9kLucznwD/QqcJdtyVSQUaWDQ+aYnzBz4Bjrb8GHbmhVC13OGCFi IUr7C7Px4RqN+a9rZpSWklIUG50xOWfiqhbWJ6kWfj9YUKvu+Tr9ul7kp SS/BSoaX+2EKc0ZI6+zTnQnxwMCWc5FQNcuJHswTkyrnfYBtm0w5RLE1a ZoxrK8SV878HvH6oNhLX19PWqWBkJU9nV6Ofb4Retnvp2ydse4p1EToFm igNNwVQlxsMbCkKJwR7QXxiO+EQiZiGCrQwqkfAVE3YKdmeinw+wEZ5cq hfge5KCcMhBAPvqansNrtCeRoE6OkQzld+ZyIRu6Fm5bLcm5BJdQeHd09 A==; X-IronPort-AV: E=McAfee;i="6600,9927,10728"; a="419067547" X-IronPort-AV: E=Sophos;i="6.00,210,1681196400"; d="scan'208";a="419067547" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Jun 2023 06:19:13 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10728"; a="881601714" X-IronPort-AV: E=Sophos;i="6.00,210,1681196400"; d="scan'208";a="881601714" Received: from hextor.igk.intel.com ([10.123.220.6]) by orsmga005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Jun 2023 06:19:12 -0700 From: Michal Wilczynski To: Benson Leung Cc: Michal Wilczynski , chrome-platform@lists.linux.dev, linux-acpi@vger.kernel.org, platform-driver-x86@vger.kernel.org, rafael@kernel.org Subject: [PATCH v4 13/35] platform/wilco_ec: Move handler installing logic to driver Date: Thu, 1 Jun 2023 15:17:16 +0200 Message-Id: <20230601131739.300760-14-michal.wilczynski@intel.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230601131739.300760-3-michal.wilczynski@intel.com> References: <20230601131739.300760-3-michal.wilczynski@intel.com> Precedence: bulk X-Mailing-List: chrome-platform@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Currently logic for installing notifications from ACPI devices is implemented using notify callback in struct acpi_driver. Preparations are being made to replace acpi_driver with more generic struct platform_driver, which doesn't contain notify callback. Furthermore as of now handlers are being called indirectly through acpi_notify_device(), which decreases performance. Call acpi_device_install_event_handler() at the end of .add() callback. Call acpi_device_remove_event_handler() at the beginning of .remove() callback. Change arguments passed to the notify callback to match with what's required by acpi_device_install_event_handler(). Signed-off-by: Michal Wilczynski --- drivers/platform/chrome/wilco_ec/event.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/drivers/platform/chrome/wilco_ec/event.c b/drivers/platform/chrome/wilco_ec/event.c index a40f60bcefb6..23fd6de623f4 100644 --- a/drivers/platform/chrome/wilco_ec/event.c +++ b/drivers/platform/chrome/wilco_ec/event.c @@ -251,16 +251,10 @@ static int enqueue_events(struct acpi_device *adev, const u8 *buf, u32 length) return 0; } -/** - * event_device_notify() - Callback when EC generates an event over ACPI. - * @adev: The device that the event is coming from. - * @value: Value passed to Notify() in ACPI. - * - * This function will read the events from the device and enqueue them. - */ -static void event_device_notify(struct acpi_device *adev, u32 value) +static void event_device_notify(acpi_handle handle, u32 value, void *data) { struct acpi_buffer event_buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + struct acpi_device *adev = data; union acpi_object *obj; acpi_status status; @@ -490,6 +484,11 @@ static int event_device_add(struct acpi_device *adev) if (error) goto free_dev_data; + error = acpi_device_install_event_handler(adev, ACPI_DEVICE_NOTIFY, + event_device_notify); + if (error) + goto free_dev_data; + return 0; free_dev_data: @@ -503,6 +502,7 @@ static void event_device_remove(struct acpi_device *adev) { struct event_device_data *dev_data = adev->driver_data; + acpi_device_remove_event_handler(adev, ACPI_DEVICE_NOTIFY, event_device_notify); cdev_device_del(&dev_data->cdev, &dev_data->dev); ida_simple_remove(&event_ida, MINOR(dev_data->dev.devt)); hangup_device(dev_data); @@ -520,7 +520,6 @@ static struct acpi_driver event_driver = { .ids = event_acpi_ids, .ops = { .add = event_device_add, - .notify = event_device_notify, .remove = event_device_remove, }, .owner = THIS_MODULE,