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Diffstat (limited to 'arch/arm/common/locomo.c')
-rw-r--r--arch/arm/common/locomo.c72
1 files changed, 46 insertions, 26 deletions
diff --git a/arch/arm/common/locomo.c b/arch/arm/common/locomo.c
index 159ad7e..a7dc137 100644
--- a/arch/arm/common/locomo.c
+++ b/arch/arm/common/locomo.c
@@ -60,7 +60,7 @@ struct locomo {
unsigned long phys;
unsigned int irq;
spinlock_t lock;
- void *base;
+ void __iomem *base;
};
struct locomo_dev_info {
@@ -162,7 +162,7 @@ static void locomo_handler(unsigned int irq, struct irqdesc *desc,
{
int req, i;
struct irqdesc *d;
- void *mapbase = get_irq_chipdata(irq);
+ void __iomem *mapbase = get_irq_chipdata(irq);
/* Acknowledge the parent IRQ */
desc->chip->ack(irq);
@@ -189,7 +189,7 @@ static void locomo_ack_irq(unsigned int irq)
static void locomo_mask_irq(unsigned int irq)
{
- void *mapbase = get_irq_chipdata(irq);
+ void __iomem *mapbase = get_irq_chipdata(irq);
unsigned int r;
r = locomo_readl(mapbase + LOCOMO_ICR);
r &= ~(0x0010 << (irq - LOCOMO_IRQ_START));
@@ -198,7 +198,7 @@ static void locomo_mask_irq(unsigned int irq)
static void locomo_unmask_irq(unsigned int irq)
{
- void *mapbase = get_irq_chipdata(irq);
+ void __iomem *mapbase = get_irq_chipdata(irq);
unsigned int r;
r = locomo_readl(mapbase + LOCOMO_ICR);
r |= (0x0010 << (irq - LOCOMO_IRQ_START));
@@ -215,7 +215,7 @@ static void locomo_key_handler(unsigned int irq, struct irqdesc *desc,
struct pt_regs *regs)
{
struct irqdesc *d;
- void *mapbase = get_irq_chipdata(irq);
+ void __iomem *mapbase = get_irq_chipdata(irq);
if (locomo_readl(mapbase + LOCOMO_KEYBOARD + LOCOMO_KIC) & 0x0001) {
d = irq_desc + LOCOMO_IRQ_KEY_START;
@@ -225,7 +225,7 @@ static void locomo_key_handler(unsigned int irq, struct irqdesc *desc,
static void locomo_key_ack_irq(unsigned int irq)
{
- void *mapbase = get_irq_chipdata(irq);
+ void __iomem *mapbase = get_irq_chipdata(irq);
unsigned int r;
r = locomo_readl(mapbase + LOCOMO_KEYBOARD + LOCOMO_KIC);
r &= ~(0x0100 << (irq - LOCOMO_IRQ_KEY_START));
@@ -234,7 +234,7 @@ static void locomo_key_ack_irq(unsigned int irq)
static void locomo_key_mask_irq(unsigned int irq)
{
- void *mapbase = get_irq_chipdata(irq);
+ void __iomem *mapbase = get_irq_chipdata(irq);
unsigned int r;
r = locomo_readl(mapbase + LOCOMO_KEYBOARD + LOCOMO_KIC);
r &= ~(0x0010 << (irq - LOCOMO_IRQ_KEY_START));
@@ -243,7 +243,7 @@ static void locomo_key_mask_irq(unsigned int irq)
static void locomo_key_unmask_irq(unsigned int irq)
{
- void *mapbase = get_irq_chipdata(irq);
+ void __iomem *mapbase = get_irq_chipdata(irq);
unsigned int r;
r = locomo_readl(mapbase + LOCOMO_KEYBOARD + LOCOMO_KIC);
r |= (0x0010 << (irq - LOCOMO_IRQ_KEY_START));
@@ -261,7 +261,7 @@ static void locomo_gpio_handler(unsigned int irq, struct irqdesc *desc,
{
int req, i;
struct irqdesc *d;
- void *mapbase = get_irq_chipdata(irq);
+ void __iomem *mapbase = get_irq_chipdata(irq);
req = locomo_readl(mapbase + LOCOMO_GIR) &
locomo_readl(mapbase + LOCOMO_GPD) &
@@ -280,7 +280,7 @@ static void locomo_gpio_handler(unsigned int irq, struct irqdesc *desc,
static void locomo_gpio_ack_irq(unsigned int irq)
{
- void *mapbase = get_irq_chipdata(irq);
+ void __iomem *mapbase = get_irq_chipdata(irq);
unsigned int r;
r = locomo_readl(mapbase + LOCOMO_GWE);
r |= (0x0001 << (irq - LOCOMO_IRQ_GPIO_START));
@@ -297,7 +297,7 @@ static void locomo_gpio_ack_irq(unsigned int irq)
static void locomo_gpio_mask_irq(unsigned int irq)
{
- void *mapbase = get_irq_chipdata(irq);
+ void __iomem *mapbase = get_irq_chipdata(irq);
unsigned int r;
r = locomo_readl(mapbase + LOCOMO_GIE);
r &= ~(0x0001 << (irq - LOCOMO_IRQ_GPIO_START));
@@ -306,7 +306,7 @@ static void locomo_gpio_mask_irq(unsigned int irq)
static void locomo_gpio_unmask_irq(unsigned int irq)
{
- void *mapbase = get_irq_chipdata(irq);
+ void __iomem *mapbase = get_irq_chipdata(irq);
unsigned int r;
r = locomo_readl(mapbase + LOCOMO_GIE);
r |= (0x0001 << (irq - LOCOMO_IRQ_GPIO_START));
@@ -323,7 +323,7 @@ static void locomo_lt_handler(unsigned int irq, struct irqdesc *desc,
struct pt_regs *regs)
{
struct irqdesc *d;
- void *mapbase = get_irq_chipdata(irq);
+ void __iomem *mapbase = get_irq_chipdata(irq);
if (locomo_readl(mapbase + LOCOMO_LTINT) & 0x0001) {
d = irq_desc + LOCOMO_IRQ_LT_START;
@@ -333,7 +333,7 @@ static void locomo_lt_handler(unsigned int irq, struct irqdesc *desc,
static void locomo_lt_ack_irq(unsigned int irq)
{
- void *mapbase = get_irq_chipdata(irq);
+ void __iomem *mapbase = get_irq_chipdata(irq);
unsigned int r;
r = locomo_readl(mapbase + LOCOMO_LTINT);
r &= ~(0x0100 << (irq - LOCOMO_IRQ_LT_START));
@@ -342,7 +342,7 @@ static void locomo_lt_ack_irq(unsigned int irq)
static void locomo_lt_mask_irq(unsigned int irq)
{
- void *mapbase = get_irq_chipdata(irq);
+ void __iomem *mapbase = get_irq_chipdata(irq);
unsigned int r;
r = locomo_readl(mapbase + LOCOMO_LTINT);
r &= ~(0x0010 << (irq - LOCOMO_IRQ_LT_START));
@@ -351,7 +351,7 @@ static void locomo_lt_mask_irq(unsigned int irq)
static void locomo_lt_unmask_irq(unsigned int irq)
{
- void *mapbase = get_irq_chipdata(irq);
+ void __iomem *mapbase = get_irq_chipdata(irq);
unsigned int r;
r = locomo_readl(mapbase + LOCOMO_LTINT);
r |= (0x0010 << (irq - LOCOMO_IRQ_LT_START));
@@ -369,7 +369,7 @@ static void locomo_spi_handler(unsigned int irq, struct irqdesc *desc,
{
int req, i;
struct irqdesc *d;
- void *mapbase = get_irq_chipdata(irq);
+ void __iomem *mapbase = get_irq_chipdata(irq);
req = locomo_readl(mapbase + LOCOMO_SPIIR) & 0x000F;
if (req) {
@@ -386,7 +386,7 @@ static void locomo_spi_handler(unsigned int irq, struct irqdesc *desc,
static void locomo_spi_ack_irq(unsigned int irq)
{
- void *mapbase = get_irq_chipdata(irq);
+ void __iomem *mapbase = get_irq_chipdata(irq);
unsigned int r;
r = locomo_readl(mapbase + LOCOMO_SPIWE);
r |= (0x0001 << (irq - LOCOMO_IRQ_SPI_START));
@@ -403,7 +403,7 @@ static void locomo_spi_ack_irq(unsigned int irq)
static void locomo_spi_mask_irq(unsigned int irq)
{
- void *mapbase = get_irq_chipdata(irq);
+ void __iomem *mapbase = get_irq_chipdata(irq);
unsigned int r;
r = locomo_readl(mapbase + LOCOMO_SPIIE);
r &= ~(0x0001 << (irq - LOCOMO_IRQ_SPI_START));
@@ -412,7 +412,7 @@ static void locomo_spi_mask_irq(unsigned int irq)
static void locomo_spi_unmask_irq(unsigned int irq)
{
- void *mapbase = get_irq_chipdata(irq);
+ void __iomem *mapbase = get_irq_chipdata(irq);
unsigned int r;
r = locomo_readl(mapbase + LOCOMO_SPIIE);
r |= (0x0001 << (irq - LOCOMO_IRQ_SPI_START));
@@ -428,7 +428,7 @@ static struct irqchip locomo_spi_chip = {
static void locomo_setup_irq(struct locomo *lchip)
{
int irq;
- void *irqbase = lchip->base;
+ void __iomem *irqbase = lchip->base;
/*
* Install handler for IRQ_LOCOMO_HW.
@@ -501,12 +501,11 @@ locomo_init_one_child(struct locomo *lchip, struct locomo_dev_info *info)
struct locomo_dev *dev;
int ret;
- dev = kmalloc(sizeof(struct locomo_dev), GFP_KERNEL);
+ dev = kzalloc(sizeof(struct locomo_dev), GFP_KERNEL);
if (!dev) {
ret = -ENOMEM;
goto out;
}
- memset(dev, 0, sizeof(struct locomo_dev));
strncpy(dev->dev.bus_id,info->name,sizeof(dev->dev.bus_id));
/*
@@ -629,6 +628,22 @@ static int locomo_resume(struct platform_device *dev)
}
#endif
+
+#define LCM_ALC_EN 0x8000
+
+void frontlight_set(struct locomo *lchip, int duty, int vr, int bpwf)
+{
+ unsigned long flags;
+
+ 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 | LCM_ALC_EN, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS);
+ spin_unlock_irqrestore(&lchip->lock, flags);
+}
+
+
/**
* locomo_probe - probe for a single LoCoMo chip.
* @phys_addr: physical address of device.
@@ -648,12 +663,10 @@ __locomo_probe(struct device *me, struct resource *mem, int irq)
unsigned long r;
int i, ret = -ENODEV;
- lchip = kmalloc(sizeof(struct locomo), GFP_KERNEL);
+ lchip = kzalloc(sizeof(struct locomo), GFP_KERNEL);
if (!lchip)
return -ENOMEM;
- memset(lchip, 0, sizeof(struct locomo));
-
spin_lock_init(&lchip->lock);
lchip->dev = me;
@@ -688,6 +701,11 @@ __locomo_probe(struct device *me, struct resource *mem, int irq)
/* FrontLight */
locomo_writel(0, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS);
locomo_writel(0, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALD);
+
+ /* Same constants can be used for collie and poodle
+ (depending on CONFIG options in original sharp code)? */
+ frontlight_set(lchip, 163, 0, 148);
+
/* Longtime timer */
locomo_writel(0, lchip->base + LOCOMO_LTINT);
/* SPI */
@@ -767,6 +785,8 @@ static int locomo_probe(struct platform_device *dev)
if (!mem)
return -EINVAL;
irq = platform_get_irq(dev, 0);
+ if (irq < 0)
+ return -ENXIO;
return __locomo_probe(&dev->dev, mem, irq);
}
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