diff options
author | Hauke Mehrtens <hauke@hauke-m.de> | 2012-11-20 22:24:34 (GMT) |
---|---|---|
committer | John Crispin <blogic@openwrt.org> | 2012-12-12 17:57:49 (GMT) |
commit | 2da4c74dc3711275e82856e62884c99f7a45f541 (patch) | |
tree | 4d557c633a005a86c4bedebb1bd4cd32752f93d9 /arch/mips/bcm47xx | |
parent | ec43b08b5733494ad88aa618ecdf534320dd8207 (diff) | |
download | linux-2da4c74dc3711275e82856e62884c99f7a45f541.tar.xz |
MIPS: BCM47XX: remove GPIO driver
Instated of providing an own GPIO driver use the one provided by ssb and
bcma.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Patchwork: http://patchwork.linux-mips.org/patch/4592
Acked-by: Florian Fainelli <florian@openwrt.org>
Diffstat (limited to 'arch/mips/bcm47xx')
-rw-r--r-- | arch/mips/bcm47xx/Kconfig | 2 | ||||
-rw-r--r-- | arch/mips/bcm47xx/Makefile | 2 | ||||
-rw-r--r-- | arch/mips/bcm47xx/gpio.c | 102 | ||||
-rw-r--r-- | arch/mips/bcm47xx/wgt634u.c | 8 |
4 files changed, 9 insertions, 105 deletions
diff --git a/arch/mips/bcm47xx/Kconfig b/arch/mips/bcm47xx/Kconfig index b311be4..d7af29f 100644 --- a/arch/mips/bcm47xx/Kconfig +++ b/arch/mips/bcm47xx/Kconfig @@ -9,6 +9,7 @@ config BCM47XX_SSB select SSB_EMBEDDED select SSB_B43_PCI_BRIDGE if PCI select SSB_PCICORE_HOSTMODE if PCI + select SSB_DRIVER_GPIO default y help Add support for old Broadcom BCM47xx boards with Sonics Silicon Backplane support. @@ -23,6 +24,7 @@ config BCM47XX_BCMA select BCMA_DRIVER_MIPS select BCMA_HOST_PCI if PCI select BCMA_DRIVER_PCI_HOSTMODE if PCI + select BCMA_DRIVER_GPIO default y help Add support for new Broadcom BCM47xx boards with Broadcom specific Advanced Microcontroller Bus. diff --git a/arch/mips/bcm47xx/Makefile b/arch/mips/bcm47xx/Makefile index 4389de1..1a3567f 100644 --- a/arch/mips/bcm47xx/Makefile +++ b/arch/mips/bcm47xx/Makefile @@ -3,5 +3,5 @@ # under Linux. # -obj-y += gpio.o irq.o nvram.o prom.o serial.o setup.o time.o sprom.o +obj-y += irq.o nvram.o prom.o serial.o setup.o time.o sprom.o obj-$(CONFIG_BCM47XX_SSB) += wgt634u.o diff --git a/arch/mips/bcm47xx/gpio.c b/arch/mips/bcm47xx/gpio.c deleted file mode 100644 index 5ebdf62..0000000 --- a/arch/mips/bcm47xx/gpio.c +++ /dev/null @@ -1,102 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net> - */ - -#include <linux/export.h> -#include <linux/ssb/ssb.h> -#include <linux/ssb/ssb_driver_chipcommon.h> -#include <linux/ssb/ssb_driver_extif.h> -#include <asm/mach-bcm47xx/bcm47xx.h> -#include <asm/mach-bcm47xx/gpio.h> - -#if (BCM47XX_CHIPCO_GPIO_LINES > BCM47XX_EXTIF_GPIO_LINES) -static DECLARE_BITMAP(gpio_in_use, BCM47XX_CHIPCO_GPIO_LINES); -#else -static DECLARE_BITMAP(gpio_in_use, BCM47XX_EXTIF_GPIO_LINES); -#endif - -int gpio_request(unsigned gpio, const char *tag) -{ - switch (bcm47xx_bus_type) { -#ifdef CONFIG_BCM47XX_SSB - case BCM47XX_BUS_TYPE_SSB: - if (ssb_chipco_available(&bcm47xx_bus.ssb.chipco) && - ((unsigned)gpio >= BCM47XX_CHIPCO_GPIO_LINES)) - return -EINVAL; - - if (ssb_extif_available(&bcm47xx_bus.ssb.extif) && - ((unsigned)gpio >= BCM47XX_EXTIF_GPIO_LINES)) - return -EINVAL; - - if (test_and_set_bit(gpio, gpio_in_use)) - return -EBUSY; - - return 0; -#endif -#ifdef CONFIG_BCM47XX_BCMA - case BCM47XX_BUS_TYPE_BCMA: - if (gpio >= BCM47XX_CHIPCO_GPIO_LINES) - return -EINVAL; - - if (test_and_set_bit(gpio, gpio_in_use)) - return -EBUSY; - - return 0; -#endif - } - return -EINVAL; -} -EXPORT_SYMBOL(gpio_request); - -void gpio_free(unsigned gpio) -{ - switch (bcm47xx_bus_type) { -#ifdef CONFIG_BCM47XX_SSB - case BCM47XX_BUS_TYPE_SSB: - if (ssb_chipco_available(&bcm47xx_bus.ssb.chipco) && - ((unsigned)gpio >= BCM47XX_CHIPCO_GPIO_LINES)) - return; - - if (ssb_extif_available(&bcm47xx_bus.ssb.extif) && - ((unsigned)gpio >= BCM47XX_EXTIF_GPIO_LINES)) - return; - - clear_bit(gpio, gpio_in_use); - return; -#endif -#ifdef CONFIG_BCM47XX_BCMA - case BCM47XX_BUS_TYPE_BCMA: - if (gpio >= BCM47XX_CHIPCO_GPIO_LINES) - return; - - clear_bit(gpio, gpio_in_use); - return; -#endif - } -} -EXPORT_SYMBOL(gpio_free); - -int gpio_to_irq(unsigned gpio) -{ - switch (bcm47xx_bus_type) { -#ifdef CONFIG_BCM47XX_SSB - case BCM47XX_BUS_TYPE_SSB: - if (ssb_chipco_available(&bcm47xx_bus.ssb.chipco)) - return ssb_mips_irq(bcm47xx_bus.ssb.chipco.dev) + 2; - else if (ssb_extif_available(&bcm47xx_bus.ssb.extif)) - return ssb_mips_irq(bcm47xx_bus.ssb.extif.dev) + 2; - else - return -EINVAL; -#endif -#ifdef CONFIG_BCM47XX_BCMA - case BCM47XX_BUS_TYPE_BCMA: - return bcma_core_mips_irq(bcm47xx_bus.bcma.bus.drv_cc.core) + 2; -#endif - } - return -EINVAL; -} -EXPORT_SYMBOL_GPL(gpio_to_irq); diff --git a/arch/mips/bcm47xx/wgt634u.c b/arch/mips/bcm47xx/wgt634u.c index e9f9ec8..6c28f6d 100644 --- a/arch/mips/bcm47xx/wgt634u.c +++ b/arch/mips/bcm47xx/wgt634u.c @@ -11,6 +11,7 @@ #include <linux/leds.h> #include <linux/mtd/physmap.h> #include <linux/ssb/ssb.h> +#include <linux/ssb/ssb_embedded.h> #include <linux/interrupt.h> #include <linux/reboot.h> #include <linux/gpio.h> @@ -116,7 +117,8 @@ static irqreturn_t gpio_interrupt(int irq, void *ignored) /* Interrupt are level triggered, revert the interrupt polarity to clear the interrupt. */ - gpio_polarity(WGT634U_GPIO_RESET, state); + ssb_gpio_polarity(&bcm47xx_bus.ssb, 1 << WGT634U_GPIO_RESET, + state ? 1 << WGT634U_GPIO_RESET : 0); if (!state) { printk(KERN_INFO "Reset button pressed"); @@ -150,7 +152,9 @@ static int __init wgt634u_init(void) gpio_interrupt, IRQF_SHARED, "WGT634U GPIO", &bcm47xx_bus.ssb.chipco)) { gpio_direction_input(WGT634U_GPIO_RESET); - gpio_intmask(WGT634U_GPIO_RESET, 1); + ssb_gpio_intmask(&bcm47xx_bus.ssb, + 1 << WGT634U_GPIO_RESET, + 1 << WGT634U_GPIO_RESET); ssb_chipco_irq_mask(&bcm47xx_bus.ssb.chipco, SSB_CHIPCO_IRQ_GPIO, SSB_CHIPCO_IRQ_GPIO); |