From patchwork Fri Aug 9 20:27:31 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 1144933 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=arndb.de Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 464xdp6DlMz9sNF for ; Sat, 10 Aug 2019 06:28:30 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727642AbfHIU2a (ORCPT ); Fri, 9 Aug 2019 16:28:30 -0400 Received: from mout.kundenserver.de ([212.227.126.187]:56133 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725860AbfHIU23 (ORCPT ); Fri, 9 Aug 2019 16:28:29 -0400 Received: from threadripper.lan ([149.172.19.189]) by mrelayeu.kundenserver.de (mreue009 [212.227.15.129]) with ESMTPA (Nemesis) id 1MatZr-1iTKFv1eOZ-00cNuB; Fri, 09 Aug 2019 22:28:24 +0200 From: Arnd Bergmann To: soc@kernel.org Cc: Arnd Bergmann , Linus Walleij , Bartosz Golaszewski , linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org Subject: [PATCH 03/16] gpio: remove ks8695 driver Date: Fri, 9 Aug 2019 22:27:31 +0200 Message-Id: <20190809202749.742267-4-arnd@arndb.de> X-Mailer: git-send-email 2.20.0 In-Reply-To: <20190809202749.742267-1-arnd@arndb.de> References: <20190809202749.742267-1-arnd@arndb.de> MIME-Version: 1.0 X-Provags-ID: V03:K1:E7nBF4LfPcGf1UtY9oqFhzllxYnnt4naJwExzBwiSQrlI4pVGRN aRwUaUtGC5jSU68hoOJidiwrAHd2X0W1UoURS2/YF3tJIAv3W6jeJHjjEPlzwj40hTQ7P9Q lw+X26NIvRR62yUaHo1+bd6KT2Ke5PexYl0jtHTVGDQZl5QecRja7VrCyGL8s329BIi/gAe /zUEmiKVJM08nSIeFGQfQ== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1; V03:K0:84GdanFCoFU=:izKT5wpwMWi6/RUL+CkXBs IYpBhnUt6UJEPOusKrqVak8lqHc5fe3+UiJnY8em4Pj0ViYXyg6ao2sOrGnF5a0T4EPfvBdxg yigdk9u2t+hEnr7t6oa9sTzfM140op8cZYQMLI341fW7G9zYMegwWB6DwenjgRo+EweIPsmyr P/nF/UHR/a32SoHVp8LTGVUgM4zq055qZifbHyjRzXo0i7LcA+5ZMnAFVrZVk46ZU3fhZB089 ThBAeaI0d0S6/o80okSNGmyzgk0Ad0ktM8JX+TOfI9KId6JGJXeGTE+TRiEuOeRtslk4C7L8i OxDwYaxBPbrf02Vwwge72NHZAlnzRB3/F35pgIdSB6aO3IaxYX1Gy9x9QmmgXDnACK3S0VksI C6onNyuGxja5iWnx0RBvVwvSDgflawW1hZ4D4yw6LQKObQZYVBr47PfrOdSNWS26soSq0H4uy C5BT5z+eWQ72oO7NDsYRNCZs+ppzcwBp6EnQ36fh01UKDJIikj5a4efCWoRa4bmOnIE8y/jTP Bmdjn5tZ5lbBlQKVawgZgMqfGrrRht88UDnptEXXaAY6gbbfko99zvpQbwUXW+L2WWCRPmTfy muxJnjEHjv1wzLEHDUbyqCy4PeYpV6kVC9AVa2RMuS56jntzMHXl6FgynDWIllD7efvWLS5vA HHMRSvutbdLR8zAJkoJ0c+ZoJo+coKzQVjgODPGFYuHbrhdbLGQ19TfTXF/OeoX5p72RT55dy xkrKi1aOr8ids8e99Qckk4nc0B2H02SewP17Zg== Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org The platform is getting removed, so there are no remaining users of this driver. Signed-off-by: Arnd Bergmann --- drivers/gpio/Makefile | 1 - drivers/gpio/gpio-ks8695.c | 284 ------------------------------------- 2 files changed, 285 deletions(-) delete mode 100644 drivers/gpio/gpio-ks8695.c diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index a4e91175c708..65d74084c9b2 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -67,7 +67,6 @@ obj-$(CONFIG_GPIO_IT87) += gpio-it87.o obj-$(CONFIG_GPIO_IXP4XX) += gpio-ixp4xx.o obj-$(CONFIG_GPIO_JANZ_TTL) += gpio-janz-ttl.o obj-$(CONFIG_GPIO_KEMPLD) += gpio-kempld.o -obj-$(CONFIG_ARCH_KS8695) += gpio-ks8695.o obj-$(CONFIG_GPIO_LOONGSON1) += gpio-loongson1.o obj-$(CONFIG_GPIO_LOONGSON) += gpio-loongson.o obj-$(CONFIG_GPIO_LP3943) += gpio-lp3943.o diff --git a/drivers/gpio/gpio-ks8695.c b/drivers/gpio/gpio-ks8695.c deleted file mode 100644 index a0f87c124894..000000000000 --- a/drivers/gpio/gpio-ks8695.c +++ /dev/null @@ -1,284 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * arch/arm/mach-ks8695/gpio.c - * - * Copyright (C) 2006 Andrew Victor - * Updated to GPIOLIB, Copyright 2008 Simtec Electronics - * Daniel Silverstone - */ -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -#include -#include - -/* - * Configure a GPIO line for either GPIO function, or its internal - * function (Interrupt, Timer, etc). - */ -static void ks8695_gpio_mode(unsigned int pin, short gpio) -{ - unsigned int enable[] = { IOPC_IOEINT0EN, IOPC_IOEINT1EN, IOPC_IOEINT2EN, IOPC_IOEINT3EN, IOPC_IOTIM0EN, IOPC_IOTIM1EN }; - unsigned long x, flags; - - if (pin > KS8695_GPIO_5) /* only GPIO 0..5 have internal functions */ - return; - - local_irq_save(flags); - - x = __raw_readl(KS8695_GPIO_VA + KS8695_IOPC); - if (gpio) /* GPIO: set bit to 0 */ - x &= ~enable[pin]; - else /* Internal function: set bit to 1 */ - x |= enable[pin]; - __raw_writel(x, KS8695_GPIO_VA + KS8695_IOPC); - - local_irq_restore(flags); -} - - -static unsigned short gpio_irq[] = { KS8695_IRQ_EXTERN0, KS8695_IRQ_EXTERN1, KS8695_IRQ_EXTERN2, KS8695_IRQ_EXTERN3 }; - -/* - * Configure GPIO pin as external interrupt source. - */ -int ks8695_gpio_interrupt(unsigned int pin, unsigned int type) -{ - unsigned long x, flags; - - if (pin > KS8695_GPIO_3) /* only GPIO 0..3 can generate IRQ */ - return -EINVAL; - - local_irq_save(flags); - - /* set pin as input */ - x = __raw_readl(KS8695_GPIO_VA + KS8695_IOPM); - x &= ~IOPM(pin); - __raw_writel(x, KS8695_GPIO_VA + KS8695_IOPM); - - local_irq_restore(flags); - - /* Set IRQ triggering type */ - irq_set_irq_type(gpio_irq[pin], type); - - /* enable interrupt mode */ - ks8695_gpio_mode(pin, 0); - - return 0; -} -EXPORT_SYMBOL(ks8695_gpio_interrupt); - - - -/* .... Generic GPIO interface .............................................. */ - -/* - * Configure the GPIO line as an input. - */ -static int ks8695_gpio_direction_input(struct gpio_chip *gc, unsigned int pin) -{ - unsigned long x, flags; - - if (pin > KS8695_GPIO_15) - return -EINVAL; - - /* set pin to GPIO mode */ - ks8695_gpio_mode(pin, 1); - - local_irq_save(flags); - - /* set pin as input */ - x = __raw_readl(KS8695_GPIO_VA + KS8695_IOPM); - x &= ~IOPM(pin); - __raw_writel(x, KS8695_GPIO_VA + KS8695_IOPM); - - local_irq_restore(flags); - - return 0; -} - - -/* - * Configure the GPIO line as an output, with default state. - */ -static int ks8695_gpio_direction_output(struct gpio_chip *gc, - unsigned int pin, int state) -{ - unsigned long x, flags; - - if (pin > KS8695_GPIO_15) - return -EINVAL; - - /* set pin to GPIO mode */ - ks8695_gpio_mode(pin, 1); - - local_irq_save(flags); - - /* set line state */ - x = __raw_readl(KS8695_GPIO_VA + KS8695_IOPD); - if (state) - x |= IOPD(pin); - else - x &= ~IOPD(pin); - __raw_writel(x, KS8695_GPIO_VA + KS8695_IOPD); - - /* set pin as output */ - x = __raw_readl(KS8695_GPIO_VA + KS8695_IOPM); - x |= IOPM(pin); - __raw_writel(x, KS8695_GPIO_VA + KS8695_IOPM); - - local_irq_restore(flags); - - return 0; -} - - -/* - * Set the state of an output GPIO line. - */ -static void ks8695_gpio_set_value(struct gpio_chip *gc, - unsigned int pin, int state) -{ - unsigned long x, flags; - - if (pin > KS8695_GPIO_15) - return; - - local_irq_save(flags); - - /* set output line state */ - x = __raw_readl(KS8695_GPIO_VA + KS8695_IOPD); - if (state) - x |= IOPD(pin); - else - x &= ~IOPD(pin); - __raw_writel(x, KS8695_GPIO_VA + KS8695_IOPD); - - local_irq_restore(flags); -} - - -/* - * Read the state of a GPIO line. - */ -static int ks8695_gpio_get_value(struct gpio_chip *gc, unsigned int pin) -{ - unsigned long x; - - if (pin > KS8695_GPIO_15) - return -EINVAL; - - x = __raw_readl(KS8695_GPIO_VA + KS8695_IOPD); - return (x & IOPD(pin)) != 0; -} - - -/* - * Map GPIO line to IRQ number. - */ -static int ks8695_gpio_to_irq(struct gpio_chip *gc, unsigned int pin) -{ - if (pin > KS8695_GPIO_3) /* only GPIO 0..3 can generate IRQ */ - return -EINVAL; - - return gpio_irq[pin]; -} - -/* GPIOLIB interface */ - -static struct gpio_chip ks8695_gpio_chip = { - .label = "KS8695", - .direction_input = ks8695_gpio_direction_input, - .direction_output = ks8695_gpio_direction_output, - .get = ks8695_gpio_get_value, - .set = ks8695_gpio_set_value, - .to_irq = ks8695_gpio_to_irq, - .base = 0, - .ngpio = 16, - .can_sleep = false, -}; - -/* Register the GPIOs */ -void ks8695_register_gpios(void) -{ - if (gpiochip_add_data(&ks8695_gpio_chip, NULL)) - printk(KERN_ERR "Unable to register core GPIOs\n"); -} - -/* .... Debug interface ..................................................... */ - -#ifdef CONFIG_DEBUG_FS - -static int ks8695_gpio_show(struct seq_file *s, void *unused) -{ - unsigned int enable[] = { IOPC_IOEINT0EN, IOPC_IOEINT1EN, IOPC_IOEINT2EN, IOPC_IOEINT3EN, IOPC_IOTIM0EN, IOPC_IOTIM1EN }; - unsigned int intmask[] = { IOPC_IOEINT0TM, IOPC_IOEINT1TM, IOPC_IOEINT2TM, IOPC_IOEINT3TM }; - unsigned long mode, ctrl, data; - int i; - - mode = __raw_readl(KS8695_GPIO_VA + KS8695_IOPM); - ctrl = __raw_readl(KS8695_GPIO_VA + KS8695_IOPC); - data = __raw_readl(KS8695_GPIO_VA + KS8695_IOPD); - - seq_printf(s, "Pin\tI/O\tFunction\tState\n\n"); - - for (i = KS8695_GPIO_0; i <= KS8695_GPIO_15 ; i++) { - seq_printf(s, "%i:\t", i); - - seq_printf(s, "%s\t", (mode & IOPM(i)) ? "Output" : "Input"); - - if (i <= KS8695_GPIO_3) { - if (ctrl & enable[i]) { - seq_printf(s, "EXT%i ", i); - - switch ((ctrl & intmask[i]) >> (4 * i)) { - case IOPC_TM_LOW: - seq_printf(s, "(Low)"); break; - case IOPC_TM_HIGH: - seq_printf(s, "(High)"); break; - case IOPC_TM_RISING: - seq_printf(s, "(Rising)"); break; - case IOPC_TM_FALLING: - seq_printf(s, "(Falling)"); break; - case IOPC_TM_EDGE: - seq_printf(s, "(Edges)"); break; - } - } else - seq_printf(s, "GPIO\t"); - } else if (i <= KS8695_GPIO_5) { - if (ctrl & enable[i]) - seq_printf(s, "TOUT%i\t", i - KS8695_GPIO_4); - else - seq_printf(s, "GPIO\t"); - } else { - seq_printf(s, "GPIO\t"); - } - - seq_printf(s, "\t"); - - seq_printf(s, "%i\n", (data & IOPD(i)) ? 1 : 0); - } - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ks8695_gpio); - -static int __init ks8695_gpio_debugfs_init(void) -{ - /* /sys/kernel/debug/ks8695_gpio */ - debugfs_create_file("ks8695_gpio", S_IFREG | S_IRUGO, NULL, NULL, - &ks8695_gpio_fops); - return 0; -} -postcore_initcall(ks8695_gpio_debugfs_init); - -#endif