From patchwork Thu Mar 5 22:01:23 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 11422695 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 536FA17EF for ; Thu, 5 Mar 2020 22:01:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3472420848 for ; Thu, 5 Mar 2020 22:01:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="KiuDu3us" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726251AbgCEWBn (ORCPT ); Thu, 5 Mar 2020 17:01:43 -0500 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:47628 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726181AbgCEWBn (ORCPT ); Thu, 5 Mar 2020 17:01:43 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1583445702; 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=De+JHRdBPIh56mw22aQQyfC40cvBVKOI8VAclo4yRUw=; b=KiuDu3usJPQXIsuW5avno0sUyqMLmyjbVnPFE/EL90QPig6fmP893F8B0IgsKagY0avfzG M0IsM03gVCY6G3pbIVhAo+aQ9M9Gk9X6v49Cs1T60jflNAdlfEz0e8zK7vJ+CFUpOFCBwP WcqOJ4r/O4Ui3YV38T7rbCq3rCthJPY= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-63-_Aaj2E8dMaeQTcOPcRiTmg-1; Thu, 05 Mar 2020 17:01:38 -0500 X-MC-Unique: _Aaj2E8dMaeQTcOPcRiTmg-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 0687B800D4E; Thu, 5 Mar 2020 22:01:37 +0000 (UTC) Received: from x1.localdomain.com (ovpn-116-27.ams2.redhat.com [10.36.116.27]) by smtp.corp.redhat.com (Postfix) with ESMTP id DE032272D3; Thu, 5 Mar 2020 22:01:35 +0000 (UTC) From: Hans de Goede To: Dmitry Torokhov , Bastien Nocera Cc: Hans de Goede , linux-input@vger.kernel.org, Dmitry Mastykin Subject: [PATCH v2 02/11] Input: goodix - Make loading the config from disk independent from the GPIO setup Date: Thu, 5 Mar 2020 23:01:23 +0100 Message-Id: <20200305220132.228722-2-hdegoede@redhat.com> In-Reply-To: <20200305220132.228722-1-hdegoede@redhat.com> References: <20200305220132.228722-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org At least on X86 ACPI platforms it is not necessary to load the touchscreen controller config from disk, if it needs to be loaded this has already been done by the BIOS / UEFI firmware. Even on other (e.g. devicetree) platforms the config-loading as currently done has the issue that the loaded cfg file is based on the controller model, but the actual cfg is device specific, so the cfg files are not part of linux-firmware and this can only work with a device specific OS image which includes the cfg file. And we do not need access to the GPIOs at all to load the config, if we do not have access we can still load the config. So all in all tying the decision to try to load the config from disk to being able to access the GPIOs is not desirable. This commit adds a new load_cfg_from_disk boolean to control the firmware loading instead. This commits sets the new bool to true when we set irq_pin_access_method to IRQ_PIN_ACCESS_GPIO, so there are no functional changes. BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1786317 BugLink: https://github.com/nexus511/gpd-ubuntu-packages/issues/10 BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=199207 Cc: Dmitry Mastykin Reviewed-by: Bastien Nocera Signed-off-by: Hans de Goede --- drivers/input/touchscreen/goodix.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c index 9cfbcf3cbca8..28bb4385a54d 100644 --- a/drivers/input/touchscreen/goodix.c +++ b/drivers/input/touchscreen/goodix.c @@ -56,6 +56,7 @@ struct goodix_ts_data { u16 id; u16 version; const char *cfg_name; + bool load_cfg_from_disk; struct completion firmware_loading_complete; unsigned long irq_flags; enum goodix_irq_pin_access_method irq_pin_access_method; @@ -654,8 +655,10 @@ static int goodix_get_gpio_config(struct goodix_ts_data *ts) ts->gpiod_rst = gpiod; - if (ts->gpiod_int && ts->gpiod_rst) + if (ts->gpiod_int && ts->gpiod_rst) { + ts->load_cfg_from_disk = true; ts->irq_pin_access_method = IRQ_PIN_ACCESS_GPIO; + } return 0; } @@ -952,7 +955,7 @@ static int goodix_ts_probe(struct i2c_client *client, ts->chip = goodix_get_chip_data(ts->id); - if (ts->irq_pin_access_method == IRQ_PIN_ACCESS_GPIO) { + if (ts->load_cfg_from_disk) { /* update device config */ ts->cfg_name = devm_kasprintf(&client->dev, GFP_KERNEL, "goodix_%d_cfg.bin", ts->id); @@ -983,7 +986,7 @@ static int goodix_ts_remove(struct i2c_client *client) { struct goodix_ts_data *ts = i2c_get_clientdata(client); - if (ts->irq_pin_access_method == IRQ_PIN_ACCESS_GPIO) + if (ts->load_cfg_from_disk) wait_for_completion(&ts->firmware_loading_complete); return 0; @@ -1001,7 +1004,8 @@ static int __maybe_unused goodix_suspend(struct device *dev) return 0; } - wait_for_completion(&ts->firmware_loading_complete); + if (ts->load_cfg_from_disk) + wait_for_completion(&ts->firmware_loading_complete); /* Free IRQ as IRQ pin is used as output in the suspend sequence */ goodix_free_irq(ts);