xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mfd: stmpe: root out static GPIO and IRQ assignments

Browse Source 
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>
This commit is contained in:
Linus Walleij
2014-05-08 23:16:34 +02:00
committed by Lee Jones
parent 9c9e321455
commit 9e9dc7d959
3 changed files with 6 additions and 32 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/gpio/gpio-stmpe.c
View File

@@ -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");