diff options
Diffstat (limited to 'target/linux/bcm63xx/patches-5.4/374-gpio-add-a-simple-GPIO-driver-for-bcm63xx.patch')
| -rw-r--r-- | target/linux/bcm63xx/patches-5.4/374-gpio-add-a-simple-GPIO-driver-for-bcm63xx.patch | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/target/linux/bcm63xx/patches-5.4/374-gpio-add-a-simple-GPIO-driver-for-bcm63xx.patch b/target/linux/bcm63xx/patches-5.4/374-gpio-add-a-simple-GPIO-driver-for-bcm63xx.patch deleted file mode 100644 index 56317410c1..0000000000 --- a/target/linux/bcm63xx/patches-5.4/374-gpio-add-a-simple-GPIO-driver-for-bcm63xx.patch +++ /dev/null @@ -1,178 +0,0 @@ -From dbe94a8daaa63ef81b7414f2a17bca8e36dd6daa Mon Sep 17 00:00:00 2001 -From: Jonas Gorski <jogo@openwrt.org> -Date: Fri, 20 Feb 2015 19:55:32 +0100 -Subject: [PATCH 1/6] gpio: add a simple GPIO driver for bcm63xx - - -Signed-off-by: Jonas Gorski <jogo@openwrt.org> ---- - drivers/gpio/Kconfig | 8 +++ - drivers/gpio/Makefile | 1 + - drivers/gpio/gpio-bcm63xx.c | 135 +++++++++++++++++++++++++++++++++++++++++++ - 3 files changed, 131 insertions(+) - create mode 100644 drivers/gpio/gpio-bcm63xx.c - ---- a/drivers/gpio/Kconfig -+++ b/drivers/gpio/Kconfig -@@ -147,6 +147,13 @@ config GPIO_BCM_KONA - help - Turn on GPIO support for Broadcom "Kona" chips. - -+config GPIO_BCM63XX -+ bool "Broadcom BCM63XX GPIO" -+ depends on MIPS || COMPILE_TEST -+ select GPIO_GENERIC -+ help -+ Turn on GPIO support for Broadcom BCM63XX xDSL chips. -+ - config GPIO_BRCMSTB - tristate "BRCMSTB GPIO support" - default y if (ARCH_BRCMSTB || BMIPS_GENERIC) ---- a/drivers/gpio/Makefile -+++ b/drivers/gpio/Makefile -@@ -34,6 +34,7 @@ obj-$(CONFIG_GPIO_ARIZONA) += gpio-ariz - obj-$(CONFIG_GPIO_ASPEED) += gpio-aspeed.o - obj-$(CONFIG_GPIO_ATH79) += gpio-ath79.o - obj-$(CONFIG_GPIO_BCM_KONA) += gpio-bcm-kona.o -+obj-$(CONFIG_GPIO_BCM63XX) += gpio-bcm63xx.o - obj-$(CONFIG_GPIO_BD70528) += gpio-bd70528.o - obj-$(CONFIG_GPIO_BD9571MWV) += gpio-bd9571mwv.o - obj-$(CONFIG_GPIO_BRCMSTB) += gpio-brcmstb.o ---- /dev/null -+++ b/drivers/gpio/gpio-bcm63xx.c -@@ -0,0 +1,135 @@ -+/* -+ * Driver for BCM63XX memory-mapped GPIO controllers, based on -+ * Generic driver for memory-mapped GPIO controllers. -+ * -+ * Copyright 2008 MontaVista Software, Inc. -+ * Copyright 2008,2010 Anton Vorontsov <cbouatmailru@gmail.com> -+ * Copyright 2015 Jonas Gorski <jogo@openwrt.org> -+ * -+ * This program is free software; you can redistribute it and/or modify it -+ * under the terms of the GNU General Public License as published by the -+ * Free Software Foundation; either version 2 of the License, or (at your -+ * option) any later version. -+ */ -+ -+#include <linux/init.h> -+#include <linux/err.h> -+#include <linux/bug.h> -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/spinlock.h> -+#include <linux/compiler.h> -+#include <linux/types.h> -+#include <linux/errno.h> -+#include <linux/log2.h> -+#include <linux/ioport.h> -+#include <linux/io.h> -+#include <linux/gpio.h> -+#include <linux/gpio/driver.h> -+#include <linux/slab.h> -+#include <linux/platform_device.h> -+#include <linux/mod_devicetable.h> -+#include <linux/of.h> -+#include <linux/of_irq.h> -+#include <linux/of_gpio.h> -+ -+static int bcm63xx_gpio_to_irq(struct gpio_chip *chip, unsigned gpio) -+{ -+ char irq_name[7]; /* "gpioXX" */ -+ -+ sprintf(irq_name, "gpio%d", gpio); -+ return of_irq_get_byname(chip->of_node, irq_name); -+} -+ -+static int bcm63xx_gpio_probe(struct platform_device *pdev) -+{ -+ struct device *dev = &pdev->dev; -+ struct resource *dat_r, *dirout_r; -+ void __iomem *dat; -+ void __iomem *dirout; -+ unsigned long sz; -+ int err; -+ struct gpio_chip *gc; -+ struct bgpio_pdata *pdata = dev_get_platdata(dev); -+ -+ dirout_r = platform_get_resource(pdev, IORESOURCE_MEM, 0); -+ dat_r = platform_get_resource(pdev, IORESOURCE_MEM, 1); -+ if (!dat_r || !dirout_r) -+ return -EINVAL; -+ -+ if (resource_size(dat_r) != resource_size(dirout_r)) -+ return -EINVAL; -+ -+ sz = resource_size(dat_r); -+ -+ dat = devm_ioremap_resource(dev, dat_r); -+ if (IS_ERR(dat)) -+ return PTR_ERR(dat); -+ -+ dirout = devm_ioremap_resource(dev, dirout_r); -+ if (IS_ERR(dirout)) -+ return PTR_ERR(dirout); -+ -+ gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL); -+ if (!gc) -+ return -ENOMEM; -+ -+ err = bgpio_init(gc, dev, sz, dat, NULL, NULL, dirout, NULL, -+ BGPIOF_BIG_ENDIAN_BYTE_ORDER); -+ if (err) -+ return err; -+ -+ platform_set_drvdata(pdev, gc); -+ -+ if (dev->of_node) { -+ int id = of_alias_get_id(dev->of_node, "gpio"); -+ u32 ngpios; -+ -+ if (id >= 0) -+ gc->label = devm_kasprintf(dev, GFP_KERNEL, -+ "bcm63xx-gpio.%d", id); -+ -+ if (!of_property_read_u32(dev->of_node, "ngpios", &ngpios)) -+ gc->ngpio = ngpios; -+ -+ if (of_get_property(dev->of_node, "interrupt-names", NULL)) -+ gc->to_irq = bcm63xx_gpio_to_irq; -+ -+ } else if (pdata) { -+ gc->base = pdata->base; -+ if (pdata->ngpio > 0) -+ gc->ngpio = pdata->ngpio; -+ } -+ -+ return gpiochip_add(gc); -+} -+ -+static int bcm63xx_gpio_remove(struct platform_device *pdev) -+{ -+ struct gpio_chip *gc = platform_get_drvdata(pdev); -+ -+ gpiochip_remove(gc); -+ return 0; -+} -+ -+#ifdef CONFIG_OF -+static struct of_device_id bcm63xx_gpio_of_match[] = { -+ { .compatible = "brcm,bcm6345-gpio" }, -+ { }, -+}; -+#endif -+ -+static struct platform_driver bcm63xx_gpio_driver = { -+ .probe = bcm63xx_gpio_probe, -+ .remove = bcm63xx_gpio_remove, -+ .driver = { -+ .name = "bcm63xx-gpio", -+ .of_match_table = of_match_ptr(bcm63xx_gpio_of_match), -+ }, -+}; -+ -+module_platform_driver(bcm63xx_gpio_driver); -+ -+MODULE_DESCRIPTION("Driver for BCM63XX memory-mapped GPIO controllers"); -+MODULE_AUTHOR("Jonas Gorski <jogo@openwrt.org>"); -+MODULE_LICENSE("GPL"); |