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Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6
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Pull a few more GPIO bug fixes from Grant Likely:
 "Oops, missed a couple.  Here's an updated pull req for GPIO"

A set of PCH bug fixes, and one patch to fix up compile warnings

* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  gpio/exynos: Fix compiler warnings when non-exynos machines are selected
  gpio: pch9: Use proper flow type handlers
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@torvalds
torvalds committed May 13, 2012
2 parents cf00c55 + 2760f7a commit 1bc4a5b
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Showing 2 changed files with 40 additions and 35 deletions.
57 changes: 28 additions & 29 deletions drivers/gpio/gpio-pch.c
View file
Expand Up @@ -230,16 +230,12 @@ static void pch_gpio_setup(struct pch_gpio *chip)

static int pch_irq_type(struct irq_data *d, unsigned int type)
{
u32 im;
u32 __iomem *im_reg;
u32 ien;
u32 im_pos;
int ch;
unsigned long flags;
u32 val;
int irq = d->irq;
struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
struct pch_gpio *chip = gc->private;
u32 im, im_pos, val;
u32 __iomem *im_reg;
unsigned long flags;
int ch, irq = d->irq;

ch = irq - chip->irq_base;
if (irq <= chip->irq_base + 7) {
Expand Down Expand Up @@ -270,30 +266,22 @@ static int pch_irq_type(struct irq_data *d, unsigned int type)
case IRQ_TYPE_LEVEL_LOW:
val = PCH_LEVEL_L;
break;
case IRQ_TYPE_PROBE:
goto end;
default:
dev_warn(chip->dev, "%s: unknown type(%dd)",
__func__, type);
goto end;
goto unlock;
}

/* Set interrupt mode */
im = ioread32(im_reg) & ~(PCH_IM_MASK << (im_pos * 4));
iowrite32(im | (val << (im_pos * 4)), im_reg);

/* iclr */
iowrite32(BIT(ch), &chip->reg->iclr);
/* And the handler */
if (type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH))
__irq_set_handler_locked(d->irq, handle_level_irq);
else if (type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING))
__irq_set_handler_locked(d->irq, handle_edge_irq);

/* IMASKCLR */
iowrite32(BIT(ch), &chip->reg->imaskclr);

/* Enable interrupt */
ien = ioread32(&chip->reg->ien);
iowrite32(ien | BIT(ch), &chip->reg->ien);
end:
unlock:
spin_unlock_irqrestore(&chip->spinlock, flags);

return 0;
}

Expand All @@ -313,18 +301,24 @@ static void pch_irq_mask(struct irq_data *d)
iowrite32(1 << (d->irq - chip->irq_base), &chip->reg->imask);
}

static void pch_irq_ack(struct irq_data *d)
{
struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
struct pch_gpio *chip = gc->private;

iowrite32(1 << (d->irq - chip->irq_base), &chip->reg->iclr);
}

static irqreturn_t pch_gpio_handler(int irq, void *dev_id)
{
struct pch_gpio *chip = dev_id;
u32 reg_val = ioread32(&chip->reg->istatus);
int i;
int ret = IRQ_NONE;
int i, ret = IRQ_NONE;

for (i = 0; i < gpio_pins[chip->ioh]; i++) {
if (reg_val & BIT(i)) {
dev_dbg(chip->dev, "%s:[%d]:irq=%d status=0x%x\n",
__func__, i, irq, reg_val);
iowrite32(BIT(i), &chip->reg->iclr);
generic_handle_irq(chip->irq_base + i);
ret = IRQ_HANDLED;
}
Expand All @@ -343,6 +337,7 @@ static __devinit void pch_gpio_alloc_generic_chip(struct pch_gpio *chip,
gc->private = chip;
ct = gc->chip_types;

ct->chip.irq_ack = pch_irq_ack;
ct->chip.irq_mask = pch_irq_mask;
ct->chip.irq_unmask = pch_irq_unmask;
ct->chip.irq_set_type = pch_irq_type;
Expand All @@ -357,6 +352,7 @@ static int __devinit pch_gpio_probe(struct pci_dev *pdev,
s32 ret;
struct pch_gpio *chip;
int irq_base;
u32 msk;

chip = kzalloc(sizeof(*chip), GFP_KERNEL);
if (chip == NULL)
Expand Down Expand Up @@ -408,8 +404,13 @@ static int __devinit pch_gpio_probe(struct pci_dev *pdev,
}
chip->irq_base = irq_base;

/* Mask all interrupts, but enable them */
msk = (1 << gpio_pins[chip->ioh]) - 1;
iowrite32(msk, &chip->reg->imask);
iowrite32(msk, &chip->reg->ien);

ret = request_irq(pdev->irq, pch_gpio_handler,
IRQF_SHARED, KBUILD_MODNAME, chip);
IRQF_SHARED, KBUILD_MODNAME, chip);
if (ret != 0) {
dev_err(&pdev->dev,
"%s request_irq failed\n", __func__);
Expand All @@ -418,8 +419,6 @@ static int __devinit pch_gpio_probe(struct pci_dev *pdev,

pch_gpio_alloc_generic_chip(chip, irq_base, gpio_pins[chip->ioh]);

/* Initialize interrupt ien register */
iowrite32(0, &chip->reg->ien);
end:
return 0;

Expand Down
18 changes: 12 additions & 6 deletions drivers/gpio/gpio-samsung.c
View file
Expand Up @@ -452,12 +452,14 @@ static struct samsung_gpio_cfg s3c24xx_gpiocfg_banka = {
};
#endif

#if defined(CONFIG_ARCH_EXYNOS4) || defined(CONFIG_ARCH_EXYNOS5)
static struct samsung_gpio_cfg exynos_gpio_cfg = {
.set_pull = exynos_gpio_setpull,
.get_pull = exynos_gpio_getpull,
.set_config = samsung_gpio_setcfg_4bit,
.get_config = samsung_gpio_getcfg_4bit,
};
#endif

#if defined(CONFIG_CPU_S5P6440) || defined(CONFIG_CPU_S5P6450)
static struct samsung_gpio_cfg s5p64x0_gpio_cfg_rbank = {
Expand Down Expand Up @@ -2123,8 +2125,8 @@ static struct samsung_gpio_chip s5pv210_gpios_4bit[] = {
* uses the above macro and depends on the banks being listed in order here.
*/

static struct samsung_gpio_chip exynos4_gpios_1[] = {
#ifdef CONFIG_ARCH_EXYNOS4
static struct samsung_gpio_chip exynos4_gpios_1[] = {
{
.chip = {
.base = EXYNOS4_GPA0(0),
Expand Down Expand Up @@ -2222,11 +2224,11 @@ static struct samsung_gpio_chip exynos4_gpios_1[] = {
.label = "GPF3",
},
},
#endif
};
#endif

static struct samsung_gpio_chip exynos4_gpios_2[] = {
#ifdef CONFIG_ARCH_EXYNOS4
static struct samsung_gpio_chip exynos4_gpios_2[] = {
{
.chip = {
.base = EXYNOS4_GPJ0(0),
Expand Down Expand Up @@ -2367,20 +2369,20 @@ static struct samsung_gpio_chip exynos4_gpios_2[] = {
.to_irq = samsung_gpiolib_to_irq,
},
},
#endif
};
#endif

static struct samsung_gpio_chip exynos4_gpios_3[] = {
#ifdef CONFIG_ARCH_EXYNOS4
static struct samsung_gpio_chip exynos4_gpios_3[] = {
{
.chip = {
.base = EXYNOS4_GPZ(0),
.ngpio = EXYNOS4_GPIO_Z_NR,
.label = "GPZ",
},
},
#endif
};
#endif

#ifdef CONFIG_ARCH_EXYNOS5
static struct samsung_gpio_chip exynos5_gpios_1[] = {
Expand Down Expand Up @@ -2719,7 +2721,9 @@ static __init int samsung_gpiolib_init(void)
{
struct samsung_gpio_chip *chip;
int i, nr_chips;
#if defined(CONFIG_CPU_EXYNOS4210) || defined(CONFIG_SOC_EXYNOS5250)
void __iomem *gpio_base1, *gpio_base2, *gpio_base3, *gpio_base4;
#endif
int group = 0;

samsung_gpiolib_set_cfg(samsung_gpio_cfgs, ARRAY_SIZE(samsung_gpio_cfgs));
Expand Down Expand Up @@ -2971,6 +2975,7 @@ static __init int samsung_gpiolib_init(void)

return 0;

#if defined(CONFIG_CPU_EXYNOS4210) || defined(CONFIG_SOC_EXYNOS5250)
err_ioremap4:
iounmap(gpio_base3);
err_ioremap3:
Expand All @@ -2979,6 +2984,7 @@ static __init int samsung_gpiolib_init(void)
iounmap(gpio_base1);
err_ioremap1:
return -ENOMEM;
#endif
}
core_initcall(samsung_gpiolib_init);

Expand Down

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