From patchwork Tue Apr 19 16:37:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 564924 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B0783C433F5 for ; Fri, 22 Apr 2022 13:43:25 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id E5362172C; Fri, 22 Apr 2022 15:42:33 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz E5362172C DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1650635004; bh=ZitIFNWOGNclnWEkC5k5wKgP8LZADBB8lqdOWZNB8wQ=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=V4/TPEjneVg8kPMZtIcHMs60FYsSt8wzhDOyo1qLAaCB79Q1GayMMttoiQFzAdJri x1SmPBfP0thDZZ6W+IAajOuwJb6FV1b885/x5iJ9LccQ1Zrq2jVEj/q8CDhHbOejW+ /EH4pG2D3HV9A1GX0HyAJQtHsUPVRv+njlbOHDsE= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id B94BCF80622; Fri, 22 Apr 2022 15:32:12 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 30D13F8025D; Tue, 19 Apr 2022 18:42:39 +0200 (CEST) Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 158C5F80116 for ; Tue, 19 Apr 2022 18:42:33 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 158C5F80116 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="M+b/M4GG" 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 dfw.source.kernel.org (Postfix) with ESMTPS id ED60461870; Tue, 19 Apr 2022 16:42:31 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1A777C385AC; Tue, 19 Apr 2022 16:42:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1650386551; bh=ZitIFNWOGNclnWEkC5k5wKgP8LZADBB8lqdOWZNB8wQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=M+b/M4GGqpVoZ/vtuDGOrUAXIOp7QmnE+sliunl9FKuasZGbZF8J7WC0f5+dwHIfV QC+dZIBkk7Hf4pg+kZCT8EC/A41AqH2ENGG3vZIkxJLPpRBM+Aex4V3HjClb5ZY2s8 QXyUz7wFF1e86cNx2J/LH32cIfYAT9jRVz/3EZvQYWNJDZXGGvuD5wmAvR7FCCQYz2 NZPv5X3QIar8bWv9pUOFMdDuQHRolS5csdfPn4P7i2wmWxafJsowCMdw66MeqUo3e4 4cfMCEif39tK7z2xRA3fIStlRIiOkBAdJrgnC88utYEWooh/HHVaMdBdkWFUYWuz/m 6oQTHQqp34oXw== From: Arnd Bergmann To: robert.jarzmik@free.fr, linux-arm-kernel@lists.infradead.org Subject: [PATCH 28/48] Input: touchscreen: use wrapper for pxa2xx ac97 registers Date: Tue, 19 Apr 2022 18:37:50 +0200 Message-Id: <20220419163810.2118169-29-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 X-Mailman-Approved-At: Fri, 22 Apr 2022 15:31:41 +0200 Cc: Ulf Hansson , linux-usb@vger.kernel.org, Philipp Zabel , "Rafael J. Wysocki" , Viresh Kumar , Sergey Lapin , linux-fbdev@vger.kernel.org, Dominik Brodowski , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, linux-mtd@lists.infradead.org, Tomas Cech , linux-clk@vger.kernel.org, linux-leds@vger.kernel.org, linux-rtc@vger.kernel.org, Helge Deller , Marek Vasut , Paul Parsons , Linus Walleij , Arnd Bergmann , linux-pm@vger.kernel.org, linux-input@vger.kernel.org, Haojian Zhuang , Lubomir Rintel , Mark Brown , dri-devel@lists.freedesktop.org, Thomas Bogendoerfer , Stephen Boyd , patches@opensource.cirrus.com, Dmitry Torokhov , linux-mmc@vger.kernel.org, linux-mips@vger.kernel.org, Michael Turquette , alsa-devel@alsa-project.org, Daniel Mack X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" From: Arnd Bergmann To avoid a dependency on the pxa platform header files with hardcoded registers, change the driver to call a wrapper in the pxa2xx-ac97-lib that encapsulates all the other ac97 stuff. Acked-by: Dmitry Torokhov Acked-by: Robert Jarzmik Cc: linux-input@vger.kernel.org Cc: alsa-devel@alsa-project.org Signed-off-by: Arnd Bergmann --- drivers/input/touchscreen/Kconfig | 2 ++ drivers/input/touchscreen/mainstone-wm97xx.c | 16 ++++++++-------- drivers/input/touchscreen/zylonite-wm97xx.c | 12 ++++++------ include/sound/pxa2xx-lib.h | 4 ++++ sound/arm/pxa2xx-ac97-lib.c | 12 ++++++++++++ 5 files changed, 32 insertions(+), 14 deletions(-) diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 43c7d6e5bdc0..2d70c945b20a 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -902,6 +902,7 @@ config TOUCHSCREEN_WM9713 config TOUCHSCREEN_WM97XX_MAINSTONE tristate "WM97xx Mainstone/Palm accelerated touch" depends on TOUCHSCREEN_WM97XX && ARCH_PXA + depends on SND_PXA2XX_LIB_AC97 help Say Y here for support for streaming mode with WM97xx touchscreens on Mainstone, Palm Tungsten T5, TX and LifeDrive systems. @@ -914,6 +915,7 @@ config TOUCHSCREEN_WM97XX_MAINSTONE config TOUCHSCREEN_WM97XX_ZYLONITE tristate "Zylonite accelerated touch" depends on TOUCHSCREEN_WM97XX && MACH_ZYLONITE + depends on SND_PXA2XX_LIB_AC97 select TOUCHSCREEN_WM9713 help Say Y here for support for streaming mode with the touchscreen diff --git a/drivers/input/touchscreen/mainstone-wm97xx.c b/drivers/input/touchscreen/mainstone-wm97xx.c index 940d3c92b1f8..8f6fe68f1f99 100644 --- a/drivers/input/touchscreen/mainstone-wm97xx.c +++ b/drivers/input/touchscreen/mainstone-wm97xx.c @@ -28,7 +28,7 @@ #include #include -#include +#include #include @@ -104,11 +104,11 @@ static void wm97xx_acc_pen_up(struct wm97xx *wm) msleep(1); if (cpu_is_pxa27x()) { - while (MISR & (1 << 2)) - MODR; + while (pxa2xx_ac97_read_misr() & (1 << 2)) + pxa2xx_ac97_read_modr(); } else if (cpu_is_pxa3xx()) { for (count = 0; count < 16; count++) - MODR; + pxa2xx_ac97_read_modr(); } } @@ -130,7 +130,7 @@ static int wm97xx_acc_pen_down(struct wm97xx *wm) return RC_PENUP; } - x = MODR; + x = pxa2xx_ac97_read_modr(); if (x == last) { tries++; return RC_AGAIN; @@ -138,10 +138,10 @@ static int wm97xx_acc_pen_down(struct wm97xx *wm) last = x; do { if (reads) - x = MODR; - y = MODR; + x = pxa2xx_ac97_read_modr(); + y = pxa2xx_ac97_read_modr(); if (pressure) - p = MODR; + p = pxa2xx_ac97_read_modr(); dev_dbg(wm->dev, "Raw coordinates: x=%x, y=%x, p=%x\n", x, y, p); diff --git a/drivers/input/touchscreen/zylonite-wm97xx.c b/drivers/input/touchscreen/zylonite-wm97xx.c index cabdd6e3c6f8..ed7eae638713 100644 --- a/drivers/input/touchscreen/zylonite-wm97xx.c +++ b/drivers/input/touchscreen/zylonite-wm97xx.c @@ -24,7 +24,7 @@ #include #include -#include +#include struct continuous { u16 id; /* codec id */ @@ -79,7 +79,7 @@ static void wm97xx_acc_pen_up(struct wm97xx *wm) msleep(1); for (i = 0; i < 16; i++) - MODR; + pxa2xx_ac97_read_modr(); } static int wm97xx_acc_pen_down(struct wm97xx *wm) @@ -100,7 +100,7 @@ static int wm97xx_acc_pen_down(struct wm97xx *wm) return RC_PENUP; } - x = MODR; + x = pxa2xx_ac97_read_modr(); if (x == last) { tries++; return RC_AGAIN; @@ -108,10 +108,10 @@ static int wm97xx_acc_pen_down(struct wm97xx *wm) last = x; do { if (reads) - x = MODR; - y = MODR; + x = pxa2xx_ac97_read_modr(); + y = pxa2xx_ac97_read_modr(); if (pressure) - p = MODR; + p = pxa2xx_ac97_read_modr(); dev_dbg(wm->dev, "Raw coordinates: x=%x, y=%x, p=%x\n", x, y, p); diff --git a/include/sound/pxa2xx-lib.h b/include/sound/pxa2xx-lib.h index 95100cff25d1..0a6f8dabf8c4 100644 --- a/include/sound/pxa2xx-lib.h +++ b/include/sound/pxa2xx-lib.h @@ -52,4 +52,8 @@ extern int pxa2xx_ac97_hw_resume(void); extern int pxa2xx_ac97_hw_probe(struct platform_device *dev); extern void pxa2xx_ac97_hw_remove(struct platform_device *dev); +/* modem registers, used by touchscreen driver */ +u32 pxa2xx_ac97_read_modr(void); +u32 pxa2xx_ac97_read_misr(void); + #endif diff --git a/sound/arm/pxa2xx-ac97-lib.c b/sound/arm/pxa2xx-ac97-lib.c index 8c79d224f03b..572b73d73762 100644 --- a/sound/arm/pxa2xx-ac97-lib.c +++ b/sound/arm/pxa2xx-ac97-lib.c @@ -428,6 +428,18 @@ void pxa2xx_ac97_hw_remove(struct platform_device *dev) } EXPORT_SYMBOL_GPL(pxa2xx_ac97_hw_remove); +u32 pxa2xx_ac97_read_modr(void) +{ + return MODR; +} +EXPORT_SYMBOL_GPL(pxa2xx_ac97_read_modr); + +u32 pxa2xx_ac97_read_misr(void) +{ + return MISR; +} +EXPORT_SYMBOL_GPL(pxa2xx_ac97_read_misr); + MODULE_AUTHOR("Nicolas Pitre"); MODULE_DESCRIPTION("Intel/Marvell PXA sound library"); MODULE_LICENSE("GPL");