From patchwork Sun Sep 24 16:42:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Duje_Mihanovi=C4=87?= X-Patchwork-Id: 13397034 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 BD075D268 for ; Sun, 24 Sep 2023 17:17:20 +0000 (UTC) Received: from mx.skole.hr (mx1.hosting.skole.hr [161.53.165.185]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CC485101; Sun, 24 Sep 2023 10:17:18 -0700 (PDT) Received: from mx1.hosting.skole.hr (localhost.localdomain [127.0.0.1]) by mx.skole.hr (mx.skole.hr) with ESMTP id 314D38207C; Sun, 24 Sep 2023 19:11:32 +0200 (CEST) From: =?utf-8?q?Duje_Mihanovi=C4=87?= Date: Sun, 24 Sep 2023 18:42:58 +0200 Subject: [PATCH RFC 5/6] ARM: pxa: Convert Spitz hsync to GPIO descriptors Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20230924-pxa-gpio-v1-5-2805b87d8894@skole.hr> References: <20230924-pxa-gpio-v1-0-2805b87d8894@skole.hr> In-Reply-To: <20230924-pxa-gpio-v1-0-2805b87d8894@skole.hr> To: Daniel Mack , Haojian Zhuang , Robert Jarzmik , Russell King , Alan Stern , Greg Kroah-Hartman , Linus Walleij , Bartosz Golaszewski , Andy Shevchenko Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-gpio@vger.kernel.org, =?utf-8?q?Duje_Miha?= =?utf-8?q?novi=C4=87?= X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1719; i=duje.mihanovic@skole.hr; h=from:subject:message-id; bh=5895JvGZEWJwM5WNxnvl7MrpXNHBGrr2xGh6alIOeRs=; b=owEBbQKS/ZANAwAIAZoRnrBCLZbhAcsmYgBlEG28CnZS8E5xwAgzJ6CVN1PApJKF1p75dl+ro yYoGLjMX3SJAjMEAAEIAB0WIQRT351NnD/hEPs2LXiaEZ6wQi2W4QUCZRBtvAAKCRCaEZ6wQi2W 4YQfD/9LYjsoRnldDP9MME1UjvcTXrPKebJ1AlZZnkgjiTUqxRtFVja207shgBymZoSNfnYFQXK sts9x+WgMnlEaHH5XL6nRVrsBZ+v/TahgGgaEXvoq5MvERbUo9ndtbNsSZmTFAppefrqk6UK3eY tTnpgwRWJrhyybcGSqKy2RlbvnCxlBJtaKNmjbwY5OfXfgu0yu/Nzbf99f2+B9Sjfzhs7GhKINK tqhH3qpCvqMbEASiph4uIj5NoZeK3BpdSycgBAy0S5C7nP1LxhRzB57gLSBGPAu0zjKfq3cWIqY v4BXqg/OwTG/Q1IL8MxuROJoLhV+ehUFN/s6qb8crXQkTmcxWfikfIWCM7i/B/4SsFhW3G/doPY sPg7vCpWiX+ScuB7opkcFPlszjXy7Z+EkwTc0Nzq2N6saG4cbUI0OoV5rk91o0/pHZ1haAQ6FJG BMwJLJXjlIyPFAyEe/cq6oNb3AM0Z8sX74+uO3cWijv3Lt2qmzFybQrF1w3zAypi7g8mNJ9DZ+O 0MipG2lbd/oIHZ8dyfljXYMTKrWieYgZAh4FKFajPGAVwgp8rwsE63vB+EMg6119jorXG/Xp86b jBm20jjKfDGUnMG9lUoctJfg/2keNdlpp3sULGvQi0FeNWLjSQnOFKd+Kpydu/Y3nhaIsDVXF7G iRxo4ltWhHjGHUA== X-Developer-Key: i=duje.mihanovic@skole.hr; a=openpgp; fpr=53DF9D4D9C3FE110FB362D789A119EB0422D96E1 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Sharp's Spitz still uses the legacy GPIO interface in its wait_for_hsync function. Convert it to use the GPIO descriptor interface. Signed-off-by: Duje Mihanović --- arch/arm/mach-pxa/spitz.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c index 94bcb187713b..1e38069e75f7 100644 --- a/arch/arm/mach-pxa/spitz.c +++ b/arch/arm/mach-pxa/spitz.c @@ -520,12 +520,14 @@ static inline void spitz_leds_init(void) {} * SSP Devices ******************************************************************************/ #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE) +static struct gpio_desc *hsync = NULL; + static void spitz_ads7846_wait_for_hsync(void) { - while (gpio_get_value(SPITZ_GPIO_HSYNC)) + while (gpiod_get_value(hsync)) cpu_relax(); - while (!gpio_get_value(SPITZ_GPIO_HSYNC)) + while (!gpiod_get_value(hsync)) cpu_relax(); } @@ -543,6 +545,8 @@ static struct gpiod_lookup_table spitz_ads7846_gpio_table = { .table = { GPIO_LOOKUP("gpio-pxa", SPITZ_GPIO_TP_INT, "pendown", GPIO_ACTIVE_LOW), + GPIO_LOOKUP("gpio-pxa", SPITZ_GPIO_HSYNC, + "hsync", GPIO_ACTIVE_LOW), { } }, }; @@ -622,6 +626,9 @@ static void __init spitz_spi_init(void) gpiod_add_lookup_table(&spitz_ads7846_gpio_table); gpiod_add_lookup_table(&spitz_spi_gpio_table); + hsync = gpiod_get(NULL, "hsync", GPIOD_IN); + if (IS_ERR(hsync)) + pr_err("Failed to get hsync GPIO: %ld\n", PTR_ERR(hsync)); pxa2xx_set_spi_info(2, &spitz_spi_info); spi_register_board_info(ARRAY_AND_SIZE(spitz_spi_devices)); }