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    Subject[PATCH 03/16] gpio: remove ks8695 driver
    Date
    The platform is getting removed, so there are no remaining
    users of this driver.

    Signed-off-by: Arnd Bergmann <arnd@arndb.de>
    ---
    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 <dsilvers@simtec.co.uk>
    - */
    -#include <linux/gpio/driver.h>
    -#include <linux/kernel.h>
    -#include <linux/mm.h>
    -#include <linux/init.h>
    -#include <linux/debugfs.h>
    -#include <linux/seq_file.h>
    -#include <linux/module.h>
    -#include <linux/io.h>
    -
    -#include <mach/hardware.h>
    -#include <asm/mach/irq.h>
    -
    -#include <mach/regs-gpio.h>
    -#include <mach/gpio-ks8695.h>
    -
    -/*
    - * 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
    --
    2.20.0
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      Last update: 2019-08-09 22:29    [W:3.310 / U:0.136 seconds]
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