From patchwork Sun Oct 1 14:12:56 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: 13405407 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 771BBE748F6 for ; Sun, 1 Oct 2023 14:22:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235086AbjJAOWW (ORCPT ); Sun, 1 Oct 2023 10:22:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33588 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235074AbjJAOWV (ORCPT ); Sun, 1 Oct 2023 10:22:21 -0400 X-Greylist: delayed 556 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Sun, 01 Oct 2023 07:22:18 PDT Received: from mx.skole.hr (mx1.hosting.skole.hr [161.53.165.185]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7B726A6; Sun, 1 Oct 2023 07:22:18 -0700 (PDT) Received: from mx1.hosting.skole.hr (localhost.localdomain [127.0.0.1]) by mx.skole.hr (mx.skole.hr) with ESMTP id 79DAD836EA; Sun, 1 Oct 2023 16:13:04 +0200 (CEST) From: =?utf-8?q?Duje_Mihanovi=C4=87?= Date: Sun, 01 Oct 2023 16:12:56 +0200 Subject: [PATCH RFC v4 5/6] ARM: pxa: Convert gumstix Bluetooth to GPIO descriptors MIME-Version: 1.0 Message-Id: <20231001-pxa-gpio-v4-5-0f3b975e6ed5@skole.hr> References: <20231001-pxa-gpio-v4-0-0f3b975e6ed5@skole.hr> In-Reply-To: <20231001-pxa-gpio-v4-0-0f3b975e6ed5@skole.hr> To: Daniel Mack , Haojian Zhuang , Robert Jarzmik , Russell King , Alan Stern , Greg Kroah-Hartman , Linus Walleij , Bartosz Golaszewski , Andy Shevchenko , Dmitry Torokhov , Mark Brown Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-gpio@vger.kernel.org, linux-input@vger.kernel.org, linux-spi@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=2120; i=duje.mihanovic@skole.hr; h=from:subject:message-id; bh=iuWT35T+pUGdfAj4zdYMGj+Bj0cXb5OTfKVaTOQr/5k=; b=owEBbQKS/ZANAwAIAZoRnrBCLZbhAcsmYgBlGX5oUa8Zw23lPXVy8SqVKx1jldghSwj9GmogH Dm2K+0yBZOJAjMEAAEIAB0WIQRT351NnD/hEPs2LXiaEZ6wQi2W4QUCZRl+aAAKCRCaEZ6wQi2W 4T4+D/9UXJlbUcC9ellaDRwD9fD5QSbYUvMGxUcaUIDmi/tcwO2jDFIStFEW7ZC66UkWSPAn4kb Rwo9UI1weqRgpoFLg99O8LoM7L/pcDCVoTxGfaP6/+uNWWw1gCQpXUisr6y4JZM8nsGqMAZSzLy uO2cBdPSm5Dbj8ITCepq2brfJNMSQ7s4iAMHzeWrlI851tYj/+M7CL2l7GSe+1F76e3Bwq5q7pS YmbZDAg9unl3OvKKjMVj+JQO2SGyEBbryuiePxDkb+39RgRYsSan3z4lJ8uQSwrCXAvaF56QfFK kFwV8+4PBoSaUyE2otTwUdUkhAk4ThqOipeYswz51Dnwo73OPTIVHvu3o0UD05W1LvfJ0ME3Xnq Nq7Jlv5MwueroGBtBAhGQOOB38K6FUA6B1IslCZ7hL9NX8Ut2c/QvDXNq7sse8W7eVw3Qd/2Cti 97SlxkA6OchUSUufb3l+wRQj/9ea+1tK6bX3HMSCo+d9IeBf5xDWG+orOZmwizhK5NfJoFLDdZs GvVNZbogSyTNFgtqh/K/QxuPvTp/Mxc9/H+/Lg6zZwbzsGT9DkilYChjybY36FtNorKSJ1W+xfa vH1W2JD2l3aSBR9Gbj7QNalOJegrc4LJhyCtlSNbAZhM4xvq3TiQWJmkaa+ke+Uxc9SX3NzASn4 h1EL9YyO34U5ABw== X-Developer-Key: i=duje.mihanovic@skole.hr; a=openpgp; fpr=53DF9D4D9C3FE110FB362D789A119EB0422D96E1 Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org Gumstix still uses the legacy GPIO interface for resetting the Bluetooth device. Convert it to use the GPIO descriptor interface. Reviewed-by: Linus Walleij Signed-off-by: Duje Mihanović --- arch/arm/mach-pxa/gumstix.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/arch/arm/mach-pxa/gumstix.c b/arch/arm/mach-pxa/gumstix.c index c9f0f62187bd..14e1b9274d7a 100644 --- a/arch/arm/mach-pxa/gumstix.c +++ b/arch/arm/mach-pxa/gumstix.c @@ -20,8 +20,8 @@ #include #include #include +#include #include -#include #include #include @@ -129,6 +129,9 @@ static void gumstix_udc_init(void) #endif #ifdef CONFIG_BT +GPIO_LOOKUP_SINGLE(gumstix_bt_gpio_table, "pxa2xx-uart.1", "pxa-gpio", + GPIO_GUMSTIX_BTRESET, "BTRST", GPIO_ACTIVE_LOW); + /* Normally, the bootloader would have enabled this 32kHz clock but many ** boards still have u-boot 1.1.4 so we check if it has been turned on and ** if not, we turn it on with a warning message. */ @@ -153,24 +156,23 @@ static void gumstix_setup_bt_clock(void) static void __init gumstix_bluetooth_init(void) { - int err; + struct gpio_desc *desc; + + gpiod_add_lookup_table(&gumstix_bt_gpio_table); gumstix_setup_bt_clock(); - err = gpio_request(GPIO_GUMSTIX_BTRESET, "BTRST"); - if (err) { + desc = gpiod_get(&pxa_device_btuart.dev, "BTRST", GPIOD_OUT_HIGH); + if (IS_ERR(desc)) { pr_err("gumstix: failed request gpio for bluetooth reset\n"); return; } - err = gpio_direction_output(GPIO_GUMSTIX_BTRESET, 1); - if (err) { - pr_err("gumstix: can't reset bluetooth\n"); - return; - } - gpio_set_value(GPIO_GUMSTIX_BTRESET, 0); + gpiod_set_value(desc, 0); udelay(100); - gpio_set_value(GPIO_GUMSTIX_BTRESET, 1); + gpiod_set_value(desc, 1); + + gpiod_put(desc); } #else static void gumstix_bluetooth_init(void)