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gpio: pl061: delete platform data handling 

Platform data is a remnant of board files and all boards using
the PL061 have been migrated to use device tree or ACPI instead.
The custom mechanism to set line by default as inputs/outputs has
been superceded by the GPIO-internal hogging mechanism.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
hifive-unleashed-5.1
Linus Walleij 2016-11-25 11:02:19 +01:00
parent 562b488443
commit 6da7b0dd51
1 changed files with 3 additions and 38 deletions
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41
drivers/gpio/gpio-pl061.c
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@ -38,19 +38,6 @@
#define PL061_GPIO_NR 8
struct pl061_platform_data {
/* number of the first GPIO */
unsigned gpio_base;
/* number of the first IRQ.
* If the IRQ functionality in not desired this must be set to 0.
*/
unsigned irq_base;
u8 directions; /* startup directions, 1: out, 0: in */
u8 values; /* startup values */
};
#ifdef CONFIG_PM
struct pl061_context_save_regs {
u8 gpio_data;
@ -306,26 +293,13 @@ static struct irq_chip pl061_irqchip = {
static int pl061_probe(struct amba_device *adev, const struct amba_id *id)
{
struct device *dev = &adev->dev;
struct pl061_platform_data *pdata = dev_get_platdata(dev);
struct pl061 *pl061;
int ret, irq, i, irq_base;
int ret, irq;
pl061 = devm_kzalloc(dev, sizeof(*pl061), GFP_KERNEL);
if (pl061 == NULL)
return -ENOMEM;
if (pdata) {
pl061->gc.base = pdata->gpio_base;
irq_base = pdata->irq_base;
if (irq_base <= 0) {
dev_err(&adev->dev, "invalid IRQ base in pdata\n");
return -ENODEV;
}
} else {
pl061->gc.base = -1;
irq_base = 0;
}
pl061->base = devm_ioremap_resource(dev, &adev->res);
if (IS_ERR(pl061->base))
return PTR_ERR(pl061->base);
@ -336,6 +310,7 @@ static int pl061_probe(struct amba_device *adev, const struct amba_id *id)
pl061->gc.free = gpiochip_generic_free;
}
pl061->gc.base = -1;
pl061->gc.get_direction = pl061_get_direction;
pl061->gc.direction_input = pl061_direction_input;
pl061->gc.direction_output = pl061_direction_output;
@ -362,7 +337,7 @@ static int pl061_probe(struct amba_device *adev, const struct amba_id *id)
pl061->parent_irq = irq;
ret = gpiochip_irqchip_add(&pl061->gc, &pl061_irqchip,
irq_base, handle_bad_irq,
0, handle_bad_irq,
IRQ_TYPE_NONE);
if (ret) {
dev_info(&adev->dev, "could not add irqchip\n");
@ -371,16 +346,6 @@ static int pl061_probe(struct amba_device *adev, const struct amba_id *id)
gpiochip_set_chained_irqchip(&pl061->gc, &pl061_irqchip,
irq, pl061_irq_handler);
for (i = 0; i < PL061_GPIO_NR; i++) {
if (pdata) {
if (pdata->directions & (BIT(i)))
pl061_direction_output(&pl061->gc, i,
pdata->values & (BIT(i)));
else
pl061_direction_input(&pl061->gc, i);
}
}
amba_set_drvdata(adev, pl061);
dev_info(&adev->dev, "PL061 GPIO chip @%pa registered\n",
&adev->res.start);