From patchwork Tue Apr 19 16:37:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 12819116 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 8B017C43219 for ; Tue, 19 Apr 2022 16:45:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1354925AbiDSQsS (ORCPT ); Tue, 19 Apr 2022 12:48:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54736 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1354860AbiDSQpJ (ORCPT ); Tue, 19 Apr 2022 12:45:09 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 421432A249; Tue, 19 Apr 2022 09:42:26 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id F29EEB81BF1; Tue, 19 Apr 2022 16:42:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 553D4C385B2; Tue, 19 Apr 2022 16:42:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1650386543; bh=6Eb0nGTaa7inf2nC5qlMl31pJtmtNV3Kf+5eTPa8gHA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CO7rCBuiK9AhgJ1IN4juEhgPNA30YC1p9bh8jWaUqHGuF4U7X5oPW4dLW8Qx7dH/V jvdLKFa39OvNa7NZiQZbpgXdY+4Y0fqRg3TgoutA+QCdu2NJzIaHcruOhT9c3p1SDy 3KlM2qB9EABeNVlsHNOzcPl2/Lnre9Pp72kx4xJWxjfgCC05fTm6GM4XpLJuyyFN7h yMNiNpSV8C2fa04ZvzNIZlUIWviLtB4PbO9u6GRPuJD4EH8ktQOkKpk8PSuyFz+kwt 5PbzTtheQR4cPnNU0VxZP6tU2sx1Pr8qNnC/9Jq0pXnEmKBR6/jlL/DmG5xx/wjiXz T4Z3ivbgbNP9A== From: Arnd Bergmann To: robert.jarzmik@free.fr, linux-arm-kernel@lists.infradead.org Cc: Arnd Bergmann , Daniel Mack , Haojian Zhuang , Marek Vasut , Philipp Zabel , Lubomir Rintel , Paul Parsons , Tomas Cech , Sergey Lapin , Thomas Bogendoerfer , Michael Turquette , Stephen Boyd , "Rafael J. Wysocki" , Viresh Kumar , Dmitry Torokhov , Ulf Hansson , Dominik Brodowski , Helge Deller , Mark Brown , Linus Walleij , linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, linux-ide@vger.kernel.org, linux-clk@vger.kernel.org, linux-pm@vger.kernel.org, linux-input@vger.kernel.org, patches@opensource.cirrus.com, linux-leds@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, linux-rtc@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, alsa-devel@alsa-project.org Subject: [PATCH 27/48] input: touchscreen: mainstone: sync with zylonite driver Date: Tue, 19 Apr 2022 18:37:49 +0200 Message-Id: <20220419163810.2118169-28-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220419163810.2118169-1-arnd@kernel.org> References: <20220419163810.2118169-1-arnd@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org From: Arnd Bergmann The two drivers are almost identical and can work on a variety of hardware in principle. The mainstone driver supports additional hardware, and the zylonite driver has a few cleanup patches. Sync the two by adding the zylonite changes into the mainstone one, and checking for the zylonite board to order to keep the default behavior (interrupt enabled) there. Acked-by: Dmitry Torokhov Cc: linux-input@vger.kernel.org Signed-off-by: Arnd Bergmann --- drivers/input/touchscreen/mainstone-wm97xx.c | 59 ++++++++++---------- 1 file changed, 31 insertions(+), 28 deletions(-) diff --git a/drivers/input/touchscreen/mainstone-wm97xx.c b/drivers/input/touchscreen/mainstone-wm97xx.c index 618c80847d9f..940d3c92b1f8 100644 --- a/drivers/input/touchscreen/mainstone-wm97xx.c +++ b/drivers/input/touchscreen/mainstone-wm97xx.c @@ -24,9 +24,9 @@ #include #include #include -#include #include -#include +#include +#include #include @@ -42,23 +42,22 @@ struct continuous { #define WM_READS(sp) ((sp / HZ) + 1) static const struct continuous cinfo[] = { - {WM9705_ID2, 0, WM_READS(94), 94}, - {WM9705_ID2, 1, WM_READS(188), 188}, - {WM9705_ID2, 2, WM_READS(375), 375}, - {WM9705_ID2, 3, WM_READS(750), 750}, - {WM9712_ID2, 0, WM_READS(94), 94}, - {WM9712_ID2, 1, WM_READS(188), 188}, - {WM9712_ID2, 2, WM_READS(375), 375}, - {WM9712_ID2, 3, WM_READS(750), 750}, - {WM9713_ID2, 0, WM_READS(94), 94}, - {WM9713_ID2, 1, WM_READS(120), 120}, - {WM9713_ID2, 2, WM_READS(154), 154}, - {WM9713_ID2, 3, WM_READS(188), 188}, + { WM9705_ID2, 0, WM_READS(94), 94 }, + { WM9705_ID2, 1, WM_READS(188), 188 }, + { WM9705_ID2, 2, WM_READS(375), 375 }, + { WM9705_ID2, 3, WM_READS(750), 750 }, + { WM9712_ID2, 0, WM_READS(94), 94 }, + { WM9712_ID2, 1, WM_READS(188), 188 }, + { WM9712_ID2, 2, WM_READS(375), 375 }, + { WM9712_ID2, 3, WM_READS(750), 750 }, + { WM9713_ID2, 0, WM_READS(94), 94 }, + { WM9713_ID2, 1, WM_READS(120), 120 }, + { WM9713_ID2, 2, WM_READS(154), 154 }, + { WM9713_ID2, 3, WM_READS(188), 188 }, }; /* continuous speed index */ static int sp_idx; -static u16 last, tries; static struct gpio_desc *gpiod_irq; /* @@ -102,7 +101,7 @@ static void wm97xx_acc_pen_up(struct wm97xx *wm) { unsigned int count; - schedule_timeout_uninterruptible(1); + msleep(1); if (cpu_is_pxa27x()) { while (MISR & (1 << 2)) @@ -117,13 +116,14 @@ static int wm97xx_acc_pen_down(struct wm97xx *wm) { u16 x, y, p = 0x100 | WM97XX_ADCSEL_PRES; int reads = 0; + static u16 last, tries; /* When the AC97 queue has been drained we need to allow time * to buffer up samples otherwise we end up spinning polling * for samples. The controller can't have a suitably low * threshold set to use the notifications it gives. */ - schedule_timeout_uninterruptible(1); + msleep(1); if (tries > 5) { tries = 0; @@ -193,6 +193,8 @@ static int wm97xx_acc_startup(struct wm97xx *wm) /* There is some obscure mutant of WM9712 interbred with WM9713 * used on Palm HW */ wm->variant = WM97xx_WM1613; + } else if (machine_is_zylonite()) { + pen_int = 1; } if (pen_int) { @@ -253,13 +255,13 @@ static void wm97xx_irq_enable(struct wm97xx *wm, int enable) } static struct wm97xx_mach_ops mainstone_mach_ops = { - .acc_enabled = 1, - .acc_pen_up = wm97xx_acc_pen_up, - .acc_pen_down = wm97xx_acc_pen_down, - .acc_startup = wm97xx_acc_startup, - .acc_shutdown = wm97xx_acc_shutdown, - .irq_enable = wm97xx_irq_enable, - .irq_gpio = WM97XX_GPIO_2, + .acc_enabled = 1, + .acc_pen_up = wm97xx_acc_pen_up, + .acc_pen_down = wm97xx_acc_pen_down, + .acc_startup = wm97xx_acc_startup, + .acc_shutdown = wm97xx_acc_shutdown, + .irq_enable = wm97xx_irq_enable, + .irq_gpio = WM97XX_GPIO_2, }; static int mainstone_wm97xx_probe(struct platform_device *pdev) @@ -274,14 +276,15 @@ static int mainstone_wm97xx_remove(struct platform_device *pdev) struct wm97xx *wm = platform_get_drvdata(pdev); wm97xx_unregister_mach_ops(wm); + return 0; } static struct platform_driver mainstone_wm97xx_driver = { - .probe = mainstone_wm97xx_probe, - .remove = mainstone_wm97xx_remove, - .driver = { - .name = "wm97xx-touch", + .probe = mainstone_wm97xx_probe, + .remove = mainstone_wm97xx_remove, + .driver = { + .name = "wm97xx-touch", }, }; module_platform_driver(mainstone_wm97xx_driver);