[PATCH v2 17/17] ARM: drop old LoCoMo driver
Dmitry Eremin-Solenikov
dbaryshkov at gmail.com
Mon Apr 27 16:55:54 PDT 2015
As there are no in-kernel users of old locomo driver, drop all
alltogether. Remove Kconfig entry, driver and header.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov at gmail.com>
---
arch/arm/common/Kconfig | 3 -
arch/arm/common/Makefile | 1 -
arch/arm/common/locomo.c | 914 ---------------------------------
arch/arm/include/asm/hardware/locomo.h | 221 --------
4 files changed, 1139 deletions(-)
delete mode 100644 arch/arm/common/locomo.c
delete mode 100644 arch/arm/include/asm/hardware/locomo.h
diff --git a/arch/arm/common/Kconfig b/arch/arm/common/Kconfig
index c3a4e9c..76c9970 100644
--- a/arch/arm/common/Kconfig
+++ b/arch/arm/common/Kconfig
@@ -9,9 +9,6 @@ config DMABOUNCE
bool
select ZONE_DMA
-config SHARP_LOCOMO
- bool
-
config SHARP_PARAM
bool
diff --git a/arch/arm/common/Makefile b/arch/arm/common/Makefile
index 70b1eff..437c79a 100644
--- a/arch/arm/common/Makefile
+++ b/arch/arm/common/Makefile
@@ -7,7 +7,6 @@ obj-y += firmware.o
obj-$(CONFIG_ICST) += icst.o
obj-$(CONFIG_SA1111) += sa1111.o
obj-$(CONFIG_DMABOUNCE) += dmabounce.o
-obj-$(CONFIG_SHARP_LOCOMO) += locomo.o
obj-$(CONFIG_SHARP_PARAM) += sharpsl_param.o
obj-$(CONFIG_SHARP_SCOOP) += scoop.o
obj-$(CONFIG_PCI_HOST_ITE8152) += it8152.o
diff --git a/arch/arm/common/locomo.c b/arch/arm/common/locomo.c
deleted file mode 100644
index b55c362..0000000
--- a/arch/arm/common/locomo.c
+++ /dev/null
@@ -1,914 +0,0 @@
-/*
- * linux/arch/arm/common/locomo.c
- *
- * Sharp LoCoMo support
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This file contains all generic LoCoMo support.
- *
- * All initialization functions provided here are intended to be called
- * from machine specific code with proper arguments when required.
- *
- * Based on sa1111.c
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/io.h>
-
-#include <mach/hardware.h>
-#include <asm/irq.h>
-#include <asm/mach/irq.h>
-
-#include <asm/hardware/locomo.h>
-
-/* LoCoMo Interrupts */
-#define IRQ_LOCOMO_KEY (0)
-#define IRQ_LOCOMO_GPIO (1)
-#define IRQ_LOCOMO_LT (2)
-#define IRQ_LOCOMO_SPI (3)
-
-/* M62332 output channel selection */
-#define M62332_EVR_CH 1 /* M62332 volume channel number */
- /* 0 : CH.1 , 1 : CH. 2 */
-/* DAC send data */
-#define M62332_SLAVE_ADDR 0x4e /* Slave address */
-#define M62332_W_BIT 0x00 /* W bit (0 only) */
-#define M62332_SUB_ADDR 0x00 /* Sub address */
-#define M62332_A_BIT 0x00 /* A bit (0 only) */
-
-/* DAC setup and hold times (expressed in us) */
-#define DAC_BUS_FREE_TIME 5 /* 4.7 us */
-#define DAC_START_SETUP_TIME 5 /* 4.7 us */
-#define DAC_STOP_SETUP_TIME 4 /* 4.0 us */
-#define DAC_START_HOLD_TIME 5 /* 4.7 us */
-#define DAC_SCL_LOW_HOLD_TIME 5 /* 4.7 us */
-#define DAC_SCL_HIGH_HOLD_TIME 4 /* 4.0 us */
-#define DAC_DATA_SETUP_TIME 1 /* 250 ns */
-#define DAC_DATA_HOLD_TIME 1 /* 300 ns */
-#define DAC_LOW_SETUP_TIME 1 /* 300 ns */
-#define DAC_HIGH_SETUP_TIME 1 /* 1000 ns */
-
-/* the following is the overall data for the locomo chip */
-struct locomo {
- struct device *dev;
- unsigned long phys;
- unsigned int irq;
- int irq_base;
- spinlock_t lock;
- void __iomem *base;
-#ifdef CONFIG_PM
- void *saved_state;
-#endif
-};
-
-struct locomo_dev_info {
- unsigned long offset;
- unsigned long length;
- unsigned int devid;
- unsigned int irq[1];
- const char * name;
-};
-
-/* All the locomo devices. If offset is non-zero, the mapbase for the
- * locomo_dev will be set to the chip base plus offset. If offset is
- * zero, then the mapbase for the locomo_dev will be set to zero. An
- * offset of zero means the device only uses GPIOs or other helper
- * functions inside this file */
-static struct locomo_dev_info locomo_devices[] = {
- {
- .devid = LOCOMO_DEVID_KEYBOARD,
- .irq = { IRQ_LOCOMO_KEY },
- .name = "locomo-keyboard",
- .offset = LOCOMO_KEYBOARD,
- .length = 16,
- },
- {
- .devid = LOCOMO_DEVID_FRONTLIGHT,
- .irq = {},
- .name = "locomo-frontlight",
- .offset = LOCOMO_FRONTLIGHT,
- .length = 8,
-
- },
- {
- .devid = LOCOMO_DEVID_BACKLIGHT,
- .irq = {},
- .name = "locomo-backlight",
- .offset = LOCOMO_BACKLIGHT,
- .length = 8,
- },
- {
- .devid = LOCOMO_DEVID_AUDIO,
- .irq = {},
- .name = "locomo-audio",
- .offset = LOCOMO_AUDIO,
- .length = 4,
- },
- {
- .devid = LOCOMO_DEVID_LED,
- .irq = {},
- .name = "locomo-led",
- .offset = LOCOMO_LED,
- .length = 8,
- },
- {
- .devid = LOCOMO_DEVID_UART,
- .irq = {},
- .name = "locomo-uart",
- .offset = 0,
- .length = 0,
- },
- {
- .devid = LOCOMO_DEVID_SPI,
- .irq = {},
- .name = "locomo-spi",
- .offset = LOCOMO_SPI,
- .length = 0x30,
- },
-};
-
-static void locomo_handler(unsigned int irq, struct irq_desc *desc)
-{
- struct locomo *lchip = irq_get_chip_data(irq);
- int req, i;
-
- /* Acknowledge the parent IRQ */
- desc->irq_data.chip->irq_ack(&desc->irq_data);
-
- /* check why this interrupt was generated */
- req = locomo_readl(lchip->base + LOCOMO_ICR) & 0x0f00;
-
- if (req) {
- /* generate the next interrupt(s) */
- irq = lchip->irq_base;
- for (i = 0; i <= 3; i++, irq++) {
- if (req & (0x0100 << i)) {
- generic_handle_irq(irq);
- }
-
- }
- }
-}
-
-static void locomo_ack_irq(struct irq_data *d)
-{
-}
-
-static void locomo_mask_irq(struct irq_data *d)
-{
- struct locomo *lchip = irq_data_get_irq_chip_data(d);
- unsigned int r;
- r = locomo_readl(lchip->base + LOCOMO_ICR);
- r &= ~(0x0010 << (d->irq - lchip->irq_base));
- locomo_writel(r, lchip->base + LOCOMO_ICR);
-}
-
-static void locomo_unmask_irq(struct irq_data *d)
-{
- struct locomo *lchip = irq_data_get_irq_chip_data(d);
- unsigned int r;
- r = locomo_readl(lchip->base + LOCOMO_ICR);
- r |= (0x0010 << (d->irq - lchip->irq_base));
- locomo_writel(r, lchip->base + LOCOMO_ICR);
-}
-
-static struct irq_chip locomo_chip = {
- .name = "LOCOMO",
- .irq_ack = locomo_ack_irq,
- .irq_mask = locomo_mask_irq,
- .irq_unmask = locomo_unmask_irq,
-};
-
-static void locomo_setup_irq(struct locomo *lchip)
-{
- int irq = lchip->irq_base;
-
- /*
- * Install handler for IRQ_LOCOMO_HW.
- */
- irq_set_irq_type(lchip->irq, IRQ_TYPE_EDGE_FALLING);
- irq_set_chip_data(lchip->irq, lchip);
- irq_set_chained_handler(lchip->irq, locomo_handler);
-
- /* Install handlers for IRQ_LOCOMO_* */
- for ( ; irq <= lchip->irq_base + 3; irq++) {
- irq_set_chip_and_handler(irq, &locomo_chip, handle_level_irq);
- irq_set_chip_data(irq, lchip);
- set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
- }
-}
-
-
-static void locomo_dev_release(struct device *_dev)
-{
- struct locomo_dev *dev = LOCOMO_DEV(_dev);
-
- kfree(dev);
-}
-
-static int
-locomo_init_one_child(struct locomo *lchip, struct locomo_dev_info *info)
-{
- struct locomo_dev *dev;
- int ret;
-
- dev = kzalloc(sizeof(struct locomo_dev), GFP_KERNEL);
- if (!dev) {
- ret = -ENOMEM;
- goto out;
- }
-
- /*
- * If the parent device has a DMA mask associated with it,
- * propagate it down to the children.
- */
- if (lchip->dev->dma_mask) {
- dev->dma_mask = *lchip->dev->dma_mask;
- dev->dev.dma_mask = &dev->dma_mask;
- }
-
- dev_set_name(&dev->dev, "%s", info->name);
- dev->devid = info->devid;
- dev->dev.parent = lchip->dev;
- dev->dev.bus = &locomo_bus_type;
- dev->dev.release = locomo_dev_release;
- dev->dev.coherent_dma_mask = lchip->dev->coherent_dma_mask;
-
- if (info->offset)
- dev->mapbase = lchip->base + info->offset;
- else
- dev->mapbase = 0;
- dev->length = info->length;
-
- dev->irq[0] = (lchip->irq_base == NO_IRQ) ?
- NO_IRQ : lchip->irq_base + info->irq[0];
-
- ret = device_register(&dev->dev);
- if (ret) {
- out:
- kfree(dev);
- }
- return ret;
-}
-
-#ifdef CONFIG_PM
-
-struct locomo_save_data {
- u16 LCM_GPO;
- u16 LCM_SPICT;
- u16 LCM_GPE;
- u16 LCM_ASD;
- u16 LCM_SPIMD;
-};
-
-static int locomo_suspend(struct platform_device *dev, pm_message_t state)
-{
- struct locomo *lchip = platform_get_drvdata(dev);
- struct locomo_save_data *save;
- unsigned long flags;
-
- save = kmalloc(sizeof(struct locomo_save_data), GFP_KERNEL);
- if (!save)
- return -ENOMEM;
-
- lchip->saved_state = save;
-
- spin_lock_irqsave(&lchip->lock, flags);
-
- save->LCM_GPO = locomo_readl(lchip->base + LOCOMO_GPO); /* GPIO */
- locomo_writel(0x00, lchip->base + LOCOMO_GPO);
- save->LCM_SPICT = locomo_readl(lchip->base + LOCOMO_SPI + LOCOMO_SPICT); /* SPI */
- locomo_writel(0x40, lchip->base + LOCOMO_SPI + LOCOMO_SPICT);
- save->LCM_GPE = locomo_readl(lchip->base + LOCOMO_GPE); /* GPIO */
- locomo_writel(0x00, lchip->base + LOCOMO_GPE);
- save->LCM_ASD = locomo_readl(lchip->base + LOCOMO_ASD); /* ADSTART */
- locomo_writel(0x00, lchip->base + LOCOMO_ASD);
- save->LCM_SPIMD = locomo_readl(lchip->base + LOCOMO_SPI + LOCOMO_SPIMD); /* SPI */
- locomo_writel(0x3C14, lchip->base + LOCOMO_SPI + LOCOMO_SPIMD);
-
- locomo_writel(0x00, lchip->base + LOCOMO_PAIF);
- locomo_writel(0x00, lchip->base + LOCOMO_DAC);
- locomo_writel(0x00, lchip->base + LOCOMO_BACKLIGHT + LOCOMO_TC);
-
- if ((locomo_readl(lchip->base + LOCOMO_LED + LOCOMO_LPT0) & 0x88) && (locomo_readl(lchip->base + LOCOMO_LED + LOCOMO_LPT1) & 0x88))
- locomo_writel(0x00, lchip->base + LOCOMO_C32K); /* CLK32 off */
- else
- /* 18MHz already enabled, so no wait */
- locomo_writel(0xc1, lchip->base + LOCOMO_C32K); /* CLK32 on */
-
- locomo_writel(0x00, lchip->base + LOCOMO_TADC); /* 18MHz clock off*/
- locomo_writel(0x00, lchip->base + LOCOMO_AUDIO + LOCOMO_ACC); /* 22MHz/24MHz clock off */
- locomo_writel(0x00, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS); /* FL */
-
- spin_unlock_irqrestore(&lchip->lock, flags);
-
- return 0;
-}
-
-static int locomo_resume(struct platform_device *dev)
-{
- struct locomo *lchip = platform_get_drvdata(dev);
- struct locomo_save_data *save;
- unsigned long r;
- unsigned long flags;
-
- save = lchip->saved_state;
- if (!save)
- return 0;
-
- spin_lock_irqsave(&lchip->lock, flags);
-
- locomo_writel(save->LCM_GPO, lchip->base + LOCOMO_GPO);
- locomo_writel(save->LCM_SPICT, lchip->base + LOCOMO_SPI + LOCOMO_SPICT);
- locomo_writel(save->LCM_GPE, lchip->base + LOCOMO_GPE);
- locomo_writel(save->LCM_ASD, lchip->base + LOCOMO_ASD);
- locomo_writel(save->LCM_SPIMD, lchip->base + LOCOMO_SPI + LOCOMO_SPIMD);
-
- locomo_writel(0x00, lchip->base + LOCOMO_C32K);
- locomo_writel(0x90, lchip->base + LOCOMO_TADC);
-
- locomo_writel(0, lchip->base + LOCOMO_KEYBOARD + LOCOMO_KSC);
- r = locomo_readl(lchip->base + LOCOMO_KEYBOARD + LOCOMO_KIC);
- r &= 0xFEFF;
- locomo_writel(r, lchip->base + LOCOMO_KEYBOARD + LOCOMO_KIC);
- locomo_writel(0x1, lchip->base + LOCOMO_KEYBOARD + LOCOMO_KCMD);
-
- spin_unlock_irqrestore(&lchip->lock, flags);
-
- lchip->saved_state = NULL;
- kfree(save);
-
- return 0;
-}
-#endif
-
-
-/**
- * locomo_probe - probe for a single LoCoMo chip.
- * @phys_addr: physical address of device.
- *
- * Probe for a LoCoMo chip. This must be called
- * before any other locomo-specific code.
- *
- * Returns:
- * %-ENODEV device not found.
- * %-EBUSY physical address already marked in-use.
- * %0 successful.
- */
-static int
-__locomo_probe(struct device *me, struct resource *mem, int irq)
-{
- struct locomo_platform_data *pdata = me->platform_data;
- struct locomo *lchip;
- unsigned long r;
- int i, ret = -ENODEV;
-
- lchip = kzalloc(sizeof(struct locomo), GFP_KERNEL);
- if (!lchip)
- return -ENOMEM;
-
- spin_lock_init(&lchip->lock);
-
- lchip->dev = me;
- dev_set_drvdata(lchip->dev, lchip);
-
- lchip->phys = mem->start;
- lchip->irq = irq;
- lchip->irq_base = (pdata) ? pdata->irq_base : NO_IRQ;
-
- /*
- * Map the whole region. This also maps the
- * registers for our children.
- */
- lchip->base = ioremap(mem->start, PAGE_SIZE);
- if (!lchip->base) {
- ret = -ENOMEM;
- goto out;
- }
-
- /* locomo initialize */
- locomo_writel(0, lchip->base + LOCOMO_ICR);
- /* KEYBOARD */
- locomo_writel(0, lchip->base + LOCOMO_KEYBOARD + LOCOMO_KIC);
-
- /* GPIO */
- locomo_writel(0, lchip->base + LOCOMO_GPO);
- locomo_writel((LOCOMO_GPIO(1) | LOCOMO_GPIO(2) | LOCOMO_GPIO(13) | LOCOMO_GPIO(14))
- , lchip->base + LOCOMO_GPE);
- locomo_writel((LOCOMO_GPIO(1) | LOCOMO_GPIO(2) | LOCOMO_GPIO(13) | LOCOMO_GPIO(14))
- , lchip->base + LOCOMO_GPD);
- locomo_writel(0, lchip->base + LOCOMO_GIE);
-
- /* Frontlight */
- locomo_writel(0, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS);
- locomo_writel(0, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALD);
-
- /* Longtime timer */
- locomo_writel(0, lchip->base + LOCOMO_LTINT);
- /* SPI */
- locomo_writel(0, lchip->base + LOCOMO_SPI + LOCOMO_SPIIE);
-
- locomo_writel(6 + 8 + 320 + 30 - 10, lchip->base + LOCOMO_ASD);
- r = locomo_readl(lchip->base + LOCOMO_ASD);
- r |= 0x8000;
- locomo_writel(r, lchip->base + LOCOMO_ASD);
-
- locomo_writel(6 + 8 + 320 + 30 - 10 - 128 + 4, lchip->base + LOCOMO_HSD);
- r = locomo_readl(lchip->base + LOCOMO_HSD);
- r |= 0x8000;
- locomo_writel(r, lchip->base + LOCOMO_HSD);
-
- locomo_writel(128 / 8, lchip->base + LOCOMO_HSC);
-
- /* XON */
- locomo_writel(0x80, lchip->base + LOCOMO_TADC);
- udelay(1000);
- /* CLK9MEN */
- r = locomo_readl(lchip->base + LOCOMO_TADC);
- r |= 0x10;
- locomo_writel(r, lchip->base + LOCOMO_TADC);
- udelay(100);
-
- /* init DAC */
- r = locomo_readl(lchip->base + LOCOMO_DAC);
- r |= LOCOMO_DAC_SCLOEB | LOCOMO_DAC_SDAOEB;
- locomo_writel(r, lchip->base + LOCOMO_DAC);
-
- r = locomo_readl(lchip->base + LOCOMO_VER);
- printk(KERN_INFO "LoCoMo Chip: %lu%lu\n", (r >> 8), (r & 0xff));
-
- /*
- * The interrupt controller must be initialised before any
- * other device to ensure that the interrupts are available.
- */
- if (lchip->irq != NO_IRQ && lchip->irq_base != NO_IRQ)
- locomo_setup_irq(lchip);
-
- for (i = 0; i < ARRAY_SIZE(locomo_devices); i++)
- locomo_init_one_child(lchip, &locomo_devices[i]);
- return 0;
-
- out:
- kfree(lchip);
- return ret;
-}
-
-static int locomo_remove_child(struct device *dev, void *data)
-{
- device_unregister(dev);
- return 0;
-}
-
-static void __locomo_remove(struct locomo *lchip)
-{
- device_for_each_child(lchip->dev, NULL, locomo_remove_child);
-
- if (lchip->irq != NO_IRQ) {
- irq_set_chained_handler(lchip->irq, NULL);
- irq_set_handler_data(lchip->irq, NULL);
- }
-
- iounmap(lchip->base);
- kfree(lchip);
-}
-
-static int locomo_probe(struct platform_device *dev)
-{
- struct resource *mem;
- int irq;
-
- mem = platform_get_resource(dev, IORESOURCE_MEM, 0);
- if (!mem)
- return -EINVAL;
- irq = platform_get_irq(dev, 0);
- if (irq < 0)
- return -ENXIO;
-
- return __locomo_probe(&dev->dev, mem, irq);
-}
-
-static int locomo_remove(struct platform_device *dev)
-{
- struct locomo *lchip = platform_get_drvdata(dev);
-
- if (lchip) {
- __locomo_remove(lchip);
- platform_set_drvdata(dev, NULL);
- }
-
- return 0;
-}
-
-/*
- * Not sure if this should be on the system bus or not yet.
- * We really want some way to register a system device at
- * the per-machine level, and then have this driver pick
- * up the registered devices.
- */
-static struct platform_driver locomo_device_driver = {
- .probe = locomo_probe,
- .remove = locomo_remove,
-#ifdef CONFIG_PM
- .suspend = locomo_suspend,
- .resume = locomo_resume,
-#endif
- .driver = {
- .name = "locomo",
- },
-};
-
-/*
- * Get the parent device driver (us) structure
- * from a child function device
- */
-static inline struct locomo *locomo_chip_driver(struct locomo_dev *ldev)
-{
- return (struct locomo *)dev_get_drvdata(ldev->dev.parent);
-}
-
-void locomo_gpio_set_dir(struct device *dev, unsigned int bits, unsigned int dir)
-{
- struct locomo *lchip = dev_get_drvdata(dev);
- unsigned long flags;
- unsigned int r;
-
- if (!lchip)
- return;
-
- spin_lock_irqsave(&lchip->lock, flags);
-
- r = locomo_readl(lchip->base + LOCOMO_GPD);
- if (dir)
- r |= bits;
- else
- r &= ~bits;
- locomo_writel(r, lchip->base + LOCOMO_GPD);
-
- r = locomo_readl(lchip->base + LOCOMO_GPE);
- if (dir)
- r |= bits;
- else
- r &= ~bits;
- locomo_writel(r, lchip->base + LOCOMO_GPE);
-
- spin_unlock_irqrestore(&lchip->lock, flags);
-}
-EXPORT_SYMBOL(locomo_gpio_set_dir);
-
-int locomo_gpio_read_level(struct device *dev, unsigned int bits)
-{
- struct locomo *lchip = dev_get_drvdata(dev);
- unsigned long flags;
- unsigned int ret;
-
- if (!lchip)
- return -ENODEV;
-
- spin_lock_irqsave(&lchip->lock, flags);
- ret = locomo_readl(lchip->base + LOCOMO_GPL);
- spin_unlock_irqrestore(&lchip->lock, flags);
-
- ret &= bits;
- return ret;
-}
-EXPORT_SYMBOL(locomo_gpio_read_level);
-
-int locomo_gpio_read_output(struct device *dev, unsigned int bits)
-{
- struct locomo *lchip = dev_get_drvdata(dev);
- unsigned long flags;
- unsigned int ret;
-
- if (!lchip)
- return -ENODEV;
-
- spin_lock_irqsave(&lchip->lock, flags);
- ret = locomo_readl(lchip->base + LOCOMO_GPO);
- spin_unlock_irqrestore(&lchip->lock, flags);
-
- ret &= bits;
- return ret;
-}
-EXPORT_SYMBOL(locomo_gpio_read_output);
-
-void locomo_gpio_write(struct device *dev, unsigned int bits, unsigned int set)
-{
- struct locomo *lchip = dev_get_drvdata(dev);
- unsigned long flags;
- unsigned int r;
-
- if (!lchip)
- return;
-
- spin_lock_irqsave(&lchip->lock, flags);
-
- r = locomo_readl(lchip->base + LOCOMO_GPO);
- if (set)
- r |= bits;
- else
- r &= ~bits;
- locomo_writel(r, lchip->base + LOCOMO_GPO);
-
- spin_unlock_irqrestore(&lchip->lock, flags);
-}
-EXPORT_SYMBOL(locomo_gpio_write);
-
-static void locomo_m62332_sendbit(void *mapbase, int bit)
-{
- unsigned int r;
-
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SCLOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
- udelay(DAC_DATA_HOLD_TIME); /* 300 nsec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SCLOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
- udelay(DAC_SCL_LOW_HOLD_TIME); /* 4.7 usec */
-
- if (bit & 1) {
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r |= LOCOMO_DAC_SDAOEB;
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
- } else {
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SDAOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
- }
-
- udelay(DAC_DATA_SETUP_TIME); /* 250 nsec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r |= LOCOMO_DAC_SCLOEB;
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
- udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4.0 usec */
-}
-
-void locomo_m62332_senddata(struct locomo_dev *ldev, unsigned int dac_data, int channel)
-{
- struct locomo *lchip = locomo_chip_driver(ldev);
- int i;
- unsigned char data;
- unsigned int r;
- void *mapbase = lchip->base;
- unsigned long flags;
-
- spin_lock_irqsave(&lchip->lock, flags);
-
- /* Start */
- udelay(DAC_BUS_FREE_TIME); /* 5.0 usec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r |= LOCOMO_DAC_SCLOEB | LOCOMO_DAC_SDAOEB;
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
- udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4.0 usec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SDAOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_START_HOLD_TIME); /* 5.0 usec */
- udelay(DAC_DATA_HOLD_TIME); /* 300 nsec */
-
- /* Send slave address and W bit (LSB is W bit) */
- data = (M62332_SLAVE_ADDR << 1) | M62332_W_BIT;
- for (i = 1; i <= 8; i++) {
- locomo_m62332_sendbit(mapbase, data >> (8 - i));
- }
-
- /* Check A bit */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SCLOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
- udelay(DAC_SCL_LOW_HOLD_TIME); /* 4.7 usec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SDAOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r |= LOCOMO_DAC_SCLOEB;
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
- udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4.7 usec */
- if (locomo_readl(mapbase + LOCOMO_DAC) & LOCOMO_DAC_SDAOEB) { /* High is error */
- printk(KERN_WARNING "locomo: m62332_senddata Error 1\n");
- goto out;
- }
-
- /* Send Sub address (LSB is channel select) */
- /* channel = 0 : ch1 select */
- /* = 1 : ch2 select */
- data = M62332_SUB_ADDR + channel;
- for (i = 1; i <= 8; i++) {
- locomo_m62332_sendbit(mapbase, data >> (8 - i));
- }
-
- /* Check A bit */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SCLOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
- udelay(DAC_SCL_LOW_HOLD_TIME); /* 4.7 usec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SDAOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r |= LOCOMO_DAC_SCLOEB;
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
- udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4.7 usec */
- if (locomo_readl(mapbase + LOCOMO_DAC) & LOCOMO_DAC_SDAOEB) { /* High is error */
- printk(KERN_WARNING "locomo: m62332_senddata Error 2\n");
- goto out;
- }
-
- /* Send DAC data */
- for (i = 1; i <= 8; i++) {
- locomo_m62332_sendbit(mapbase, dac_data >> (8 - i));
- }
-
- /* Check A bit */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SCLOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
- udelay(DAC_SCL_LOW_HOLD_TIME); /* 4.7 usec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SDAOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r |= LOCOMO_DAC_SCLOEB;
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
- udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4.7 usec */
- if (locomo_readl(mapbase + LOCOMO_DAC) & LOCOMO_DAC_SDAOEB) { /* High is error */
- printk(KERN_WARNING "locomo: m62332_senddata Error 3\n");
- }
-
-out:
- /* stop */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SCLOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
- udelay(DAC_SCL_LOW_HOLD_TIME); /* 4.7 usec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r |= LOCOMO_DAC_SCLOEB;
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
- udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4 usec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r |= LOCOMO_DAC_SDAOEB;
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
- udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4 usec */
-
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r |= LOCOMO_DAC_SCLOEB | LOCOMO_DAC_SDAOEB;
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 1000 nsec */
- udelay(DAC_SCL_LOW_HOLD_TIME); /* 4.7 usec */
-
- spin_unlock_irqrestore(&lchip->lock, flags);
-}
-EXPORT_SYMBOL(locomo_m62332_senddata);
-
-/*
- * Frontlight control
- */
-
-void locomo_frontlight_set(struct locomo_dev *dev, int duty, int vr, int bpwf)
-{
- unsigned long flags;
- struct locomo *lchip = locomo_chip_driver(dev);
-
- if (vr)
- locomo_gpio_write(dev->dev.parent, LOCOMO_GPIO_FL_VR, 1);
- else
- locomo_gpio_write(dev->dev.parent, LOCOMO_GPIO_FL_VR, 0);
-
- spin_lock_irqsave(&lchip->lock, flags);
- locomo_writel(bpwf, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS);
- udelay(100);
- locomo_writel(duty, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALD);
- locomo_writel(bpwf | LOCOMO_ALC_EN, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS);
- spin_unlock_irqrestore(&lchip->lock, flags);
-}
-EXPORT_SYMBOL(locomo_frontlight_set);
-
-/*
- * LoCoMo "Register Access Bus."
- *
- * We model this as a regular bus type, and hang devices directly
- * off this.
- */
-static int locomo_match(struct device *_dev, struct device_driver *_drv)
-{
- struct locomo_dev *dev = LOCOMO_DEV(_dev);
- struct locomo_driver *drv = LOCOMO_DRV(_drv);
-
- return dev->devid == drv->devid;
-}
-
-static int locomo_bus_suspend(struct device *dev, pm_message_t state)
-{
- struct locomo_dev *ldev = LOCOMO_DEV(dev);
- struct locomo_driver *drv = LOCOMO_DRV(dev->driver);
- int ret = 0;
-
- if (drv && drv->suspend)
- ret = drv->suspend(ldev, state);
- return ret;
-}
-
-static int locomo_bus_resume(struct device *dev)
-{
- struct locomo_dev *ldev = LOCOMO_DEV(dev);
- struct locomo_driver *drv = LOCOMO_DRV(dev->driver);
- int ret = 0;
-
- if (drv && drv->resume)
- ret = drv->resume(ldev);
- return ret;
-}
-
-static int locomo_bus_probe(struct device *dev)
-{
- struct locomo_dev *ldev = LOCOMO_DEV(dev);
- struct locomo_driver *drv = LOCOMO_DRV(dev->driver);
- int ret = -ENODEV;
-
- if (drv->probe)
- ret = drv->probe(ldev);
- return ret;
-}
-
-static int locomo_bus_remove(struct device *dev)
-{
- struct locomo_dev *ldev = LOCOMO_DEV(dev);
- struct locomo_driver *drv = LOCOMO_DRV(dev->driver);
- int ret = 0;
-
- if (drv->remove)
- ret = drv->remove(ldev);
- return ret;
-}
-
-struct bus_type locomo_bus_type = {
- .name = "locomo-bus",
- .match = locomo_match,
- .probe = locomo_bus_probe,
- .remove = locomo_bus_remove,
- .suspend = locomo_bus_suspend,
- .resume = locomo_bus_resume,
-};
-
-int locomo_driver_register(struct locomo_driver *driver)
-{
- driver->drv.bus = &locomo_bus_type;
- return driver_register(&driver->drv);
-}
-EXPORT_SYMBOL(locomo_driver_register);
-
-void locomo_driver_unregister(struct locomo_driver *driver)
-{
- driver_unregister(&driver->drv);
-}
-EXPORT_SYMBOL(locomo_driver_unregister);
-
-static int __init locomo_init(void)
-{
- int ret = bus_register(&locomo_bus_type);
- if (ret == 0)
- platform_driver_register(&locomo_device_driver);
- return ret;
-}
-
-static void __exit locomo_exit(void)
-{
- platform_driver_unregister(&locomo_device_driver);
- bus_unregister(&locomo_bus_type);
-}
-
-module_init(locomo_init);
-module_exit(locomo_exit);
-
-MODULE_DESCRIPTION("Sharp LoCoMo core driver");
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("John Lenz <lenz at cs.wisc.edu>");
diff --git a/arch/arm/include/asm/hardware/locomo.h b/arch/arm/include/asm/hardware/locomo.h
deleted file mode 100644
index 74e51d6b..0000000
--- a/arch/arm/include/asm/hardware/locomo.h
+++ /dev/null
@@ -1,221 +0,0 @@
-/*
- * arch/arm/include/asm/hardware/locomo.h
- *
- * This file contains the definitions for the LoCoMo G/A Chip
- *
- * (C) Copyright 2004 John Lenz
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * Based on sa1111.h
- */
-#ifndef _ASM_ARCH_LOCOMO
-#define _ASM_ARCH_LOCOMO
-
-#define locomo_writel(val,addr) ({ *(volatile u16 *)(addr) = (val); })
-#define locomo_readl(addr) (*(volatile u16 *)(addr))
-
-/* LOCOMO version */
-#define LOCOMO_VER 0x00
-
-/* Pin status */
-#define LOCOMO_ST 0x04
-
-/* Pin status */
-#define LOCOMO_C32K 0x08
-
-/* Interrupt controller */
-#define LOCOMO_ICR 0x0C
-
-/* MCS decoder for boot selecting */
-#define LOCOMO_MCSX0 0x10
-#define LOCOMO_MCSX1 0x14
-#define LOCOMO_MCSX2 0x18
-#define LOCOMO_MCSX3 0x1c
-
-/* Touch panel controller */
-#define LOCOMO_ASD 0x20 /* AD start delay */
-#define LOCOMO_HSD 0x28 /* HSYS delay */
-#define LOCOMO_HSC 0x2c /* HSYS period */
-#define LOCOMO_TADC 0x30 /* tablet ADC clock */
-
-
-/* Long time timer */
-#define LOCOMO_LTC 0xd8 /* LTC interrupt setting */
-#define LOCOMO_LTINT 0xdc /* LTC interrupt */
-
-/* DAC control signal for LCD (COMADJ ) */
-#define LOCOMO_DAC 0xe0
-/* DAC control */
-#define LOCOMO_DAC_SCLOEB 0x08 /* SCL pin output data */
-#define LOCOMO_DAC_TEST 0x04 /* Test bit */
-#define LOCOMO_DAC_SDA 0x02 /* SDA pin level (read-only) */
-#define LOCOMO_DAC_SDAOEB 0x01 /* SDA pin output data */
-
-/* SPI interface */
-#define LOCOMO_SPI 0x60
-#define LOCOMO_SPIMD 0x00 /* SPI mode setting */
-#define LOCOMO_SPICT 0x04 /* SPI mode control */
-#define LOCOMO_SPIST 0x08 /* SPI status */
-#define LOCOMO_SPI_TEND (1 << 3) /* Transfer end bit */
-#define LOCOMO_SPI_REND (1 << 2) /* Receive end bit */
-#define LOCOMO_SPI_RFW (1 << 1) /* write buffer bit */
-#define LOCOMO_SPI_RFR (1) /* read buffer bit */
-
-#define LOCOMO_SPIIS 0x10 /* SPI interrupt status */
-#define LOCOMO_SPIWE 0x14 /* SPI interrupt status write enable */
-#define LOCOMO_SPIIE 0x18 /* SPI interrupt enable */
-#define LOCOMO_SPIIR 0x1c /* SPI interrupt request */
-#define LOCOMO_SPITD 0x20 /* SPI transfer data write */
-#define LOCOMO_SPIRD 0x24 /* SPI receive data read */
-#define LOCOMO_SPITS 0x28 /* SPI transfer data shift */
-#define LOCOMO_SPIRS 0x2C /* SPI receive data shift */
-
-/* GPIO */
-#define LOCOMO_GPD 0x90 /* GPIO direction */
-#define LOCOMO_GPE 0x94 /* GPIO input enable */
-#define LOCOMO_GPL 0x98 /* GPIO level */
-#define LOCOMO_GPO 0x9c /* GPIO out data setting */
-#define LOCOMO_GRIE 0xa0 /* GPIO rise detection */
-#define LOCOMO_GFIE 0xa4 /* GPIO fall detection */
-#define LOCOMO_GIS 0xa8 /* GPIO edge detection status */
-#define LOCOMO_GWE 0xac /* GPIO status write enable */
-#define LOCOMO_GIE 0xb0 /* GPIO interrupt enable */
-#define LOCOMO_GIR 0xb4 /* GPIO interrupt request */
-#define LOCOMO_GPIO(Nb) (0x01 << (Nb))
-#define LOCOMO_GPIO_RTS LOCOMO_GPIO(0)
-#define LOCOMO_GPIO_CTS LOCOMO_GPIO(1)
-#define LOCOMO_GPIO_DSR LOCOMO_GPIO(2)
-#define LOCOMO_GPIO_DTR LOCOMO_GPIO(3)
-#define LOCOMO_GPIO_LCD_VSHA_ON LOCOMO_GPIO(4)
-#define LOCOMO_GPIO_LCD_VSHD_ON LOCOMO_GPIO(5)
-#define LOCOMO_GPIO_LCD_VEE_ON LOCOMO_GPIO(6)
-#define LOCOMO_GPIO_LCD_MOD LOCOMO_GPIO(7)
-#define LOCOMO_GPIO_DAC_ON LOCOMO_GPIO(8)
-#define LOCOMO_GPIO_FL_VR LOCOMO_GPIO(9)
-#define LOCOMO_GPIO_DAC_SDATA LOCOMO_GPIO(10)
-#define LOCOMO_GPIO_DAC_SCK LOCOMO_GPIO(11)
-#define LOCOMO_GPIO_DAC_SLOAD LOCOMO_GPIO(12)
-#define LOCOMO_GPIO_CARD_DETECT LOCOMO_GPIO(13)
-#define LOCOMO_GPIO_WRITE_PROT LOCOMO_GPIO(14)
-#define LOCOMO_GPIO_CARD_POWER LOCOMO_GPIO(15)
-
-/* Start the definitions of the devices. Each device has an initial
- * base address and a series of offsets from that base address. */
-
-/* Keyboard controller */
-#define LOCOMO_KEYBOARD 0x40
-#define LOCOMO_KIB 0x00 /* KIB level */
-#define LOCOMO_KSC 0x04 /* KSTRB control */
-#define LOCOMO_KCMD 0x08 /* KSTRB command */
-#define LOCOMO_KIC 0x0c /* Key interrupt */
-
-/* Front light adjustment controller */
-#define LOCOMO_FRONTLIGHT 0xc8
-#define LOCOMO_ALS 0x00 /* Adjust light cycle */
-#define LOCOMO_ALD 0x04 /* Adjust light duty */
-
-#define LOCOMO_ALC_EN 0x8000
-
-/* Backlight controller: TFT signal */
-#define LOCOMO_BACKLIGHT 0x38
-#define LOCOMO_TC 0x00 /* TFT control signal */
-#define LOCOMO_CPSD 0x04 /* CPS delay */
-
-/* Audio controller */
-#define LOCOMO_AUDIO 0x54
-#define LOCOMO_ACC 0x00 /* Audio clock */
-#define LOCOMO_PAIF 0xD0 /* PCM audio interface */
-/* Audio clock */
-#define LOCOMO_ACC_XON 0x80
-#define LOCOMO_ACC_XEN 0x40
-#define LOCOMO_ACC_XSEL0 0x00
-#define LOCOMO_ACC_XSEL1 0x20
-#define LOCOMO_ACC_MCLKEN 0x10
-#define LOCOMO_ACC_64FSEN 0x08
-#define LOCOMO_ACC_CLKSEL000 0x00 /* mclk 2 */
-#define LOCOMO_ACC_CLKSEL001 0x01 /* mclk 3 */
-#define LOCOMO_ACC_CLKSEL010 0x02 /* mclk 4 */
-#define LOCOMO_ACC_CLKSEL011 0x03 /* mclk 6 */
-#define LOCOMO_ACC_CLKSEL100 0x04 /* mclk 8 */
-#define LOCOMO_ACC_CLKSEL101 0x05 /* mclk 12 */
-/* PCM audio interface */
-#define LOCOMO_PAIF_SCINV 0x20
-#define LOCOMO_PAIF_SCEN 0x10
-#define LOCOMO_PAIF_LRCRST 0x08
-#define LOCOMO_PAIF_LRCEVE 0x04
-#define LOCOMO_PAIF_LRCINV 0x02
-#define LOCOMO_PAIF_LRCEN 0x01
-
-/* LED controller */
-#define LOCOMO_LED 0xe8
-#define LOCOMO_LPT0 0x00
-#define LOCOMO_LPT1 0x04
-/* LED control */
-#define LOCOMO_LPT_TOFH 0x80
-#define LOCOMO_LPT_TOFL 0x08
-#define LOCOMO_LPT_TOH(TOH) ((TOH & 0x7) << 4)
-#define LOCOMO_LPT_TOL(TOL) ((TOL & 0x7))
-
-extern struct bus_type locomo_bus_type;
-
-#define LOCOMO_DEVID_KEYBOARD 0
-#define LOCOMO_DEVID_FRONTLIGHT 1
-#define LOCOMO_DEVID_BACKLIGHT 2
-#define LOCOMO_DEVID_AUDIO 3
-#define LOCOMO_DEVID_LED 4
-#define LOCOMO_DEVID_UART 5
-#define LOCOMO_DEVID_SPI 6
-
-struct locomo_dev {
- struct device dev;
- unsigned int devid;
- unsigned int irq[1];
-
- void *mapbase;
- unsigned long length;
-
- u64 dma_mask;
-};
-
-#define LOCOMO_DEV(_d) container_of((_d), struct locomo_dev, dev)
-
-#define locomo_get_drvdata(d) dev_get_drvdata(&(d)->dev)
-#define locomo_set_drvdata(d,p) dev_set_drvdata(&(d)->dev, p)
-
-struct locomo_driver {
- struct device_driver drv;
- unsigned int devid;
- int (*probe)(struct locomo_dev *);
- int (*remove)(struct locomo_dev *);
- int (*suspend)(struct locomo_dev *, pm_message_t);
- int (*resume)(struct locomo_dev *);
-};
-
-#define LOCOMO_DRV(_d) container_of((_d), struct locomo_driver, drv)
-
-#define LOCOMO_DRIVER_NAME(_ldev) ((_ldev)->dev.driver->name)
-
-void locomo_lcd_power(struct locomo_dev *, int, unsigned int);
-
-int locomo_driver_register(struct locomo_driver *);
-void locomo_driver_unregister(struct locomo_driver *);
-
-/* GPIO control functions */
-void locomo_gpio_set_dir(struct device *dev, unsigned int bits, unsigned int dir);
-int locomo_gpio_read_level(struct device *dev, unsigned int bits);
-int locomo_gpio_read_output(struct device *dev, unsigned int bits);
-void locomo_gpio_write(struct device *dev, unsigned int bits, unsigned int set);
-
-/* M62332 control function */
-void locomo_m62332_senddata(struct locomo_dev *ldev, unsigned int dac_data, int channel);
-
-/* Frontlight control */
-void locomo_frontlight_set(struct locomo_dev *dev, int duty, int vr, int bpwf);
-
-struct locomo_platform_data {
- int irq_base; /* IRQ base for cascaded on-chip IRQs */
-};
-
-#endif
--
2.1.4
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