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authorLinus Walleij <linus.walleij@linaro.org>2014-05-09 01:16:34 +0400
committerLee Jones <lee.jones@linaro.org>2014-05-23 12:41:01 +0400
commit9e9dc7d9597bd6881b3e7ae6ae3d710319605c47 (patch)
tree86a55e9ccf8388a805eaaa4fed10b472590af6b4 /drivers/gpio
parent9c9e321455fb806108f9dbb1872bacfd42c6002b (diff)
downloadlinux-9e9dc7d9597bd6881b3e7ae6ae3d710319605c47.tar.xz
mfd: stmpe: root out static GPIO and IRQ assignments
The only platform using the STMPE expander now boots from device tree using all-dynamic GPIO and IRQ number assignments, so remove the mechanism to pass this from the device tree entirely. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/gpio-stmpe.c18
1 files changed, 5 insertions, 13 deletions
diff --git a/drivers/gpio/gpio-stmpe.c b/drivers/gpio/gpio-stmpe.c
index 2776a09bee58..628b58494294 100644
--- a/drivers/gpio/gpio-stmpe.c
+++ b/drivers/gpio/gpio-stmpe.c
@@ -23,7 +23,8 @@
enum { REG_RE, REG_FE, REG_IE };
#define CACHE_NR_REGS 3
-#define CACHE_NR_BANKS (STMPE_NR_GPIOS / 8)
+/* No variant has more than 24 GPIOs */
+#define CACHE_NR_BANKS (24 / 8)
struct stmpe_gpio {
struct gpio_chip chip;
@@ -31,8 +32,6 @@ struct stmpe_gpio {
struct device *dev;
struct mutex irq_lock;
struct irq_domain *domain;
-
- int irq_base;
unsigned norequest_mask;
/* Caches of interrupt control registers for bus_lock */
@@ -311,13 +310,8 @@ static const struct irq_domain_ops stmpe_gpio_irq_simple_ops = {
static int stmpe_gpio_irq_init(struct stmpe_gpio *stmpe_gpio,
struct device_node *np)
{
- int base = 0;
-
- if (!np)
- base = stmpe_gpio->irq_base;
-
stmpe_gpio->domain = irq_domain_add_simple(np,
- stmpe_gpio->chip.ngpio, base,
+ stmpe_gpio->chip.ngpio, 0,
&stmpe_gpio_irq_simple_ops, stmpe_gpio);
if (!stmpe_gpio->domain) {
dev_err(stmpe_gpio->dev, "failed to create irqdomain\n");
@@ -354,7 +348,7 @@ static int stmpe_gpio_probe(struct platform_device *pdev)
#ifdef CONFIG_OF
stmpe_gpio->chip.of_node = np;
#endif
- stmpe_gpio->chip.base = pdata ? pdata->gpio_base : -1;
+ stmpe_gpio->chip.base = -1;
if (pdata)
stmpe_gpio->norequest_mask = pdata->norequest_mask;
@@ -362,9 +356,7 @@ static int stmpe_gpio_probe(struct platform_device *pdev)
of_property_read_u32(np, "st,norequest-mask",
&stmpe_gpio->norequest_mask);
- if (irq >= 0)
- stmpe_gpio->irq_base = stmpe->irq_base + STMPE_INT_GPIO(0);
- else
+ if (irq < 0)
dev_info(&pdev->dev,
"device configured in no-irq mode; "
"irqs are not available\n");