diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2009-10-01 16:41:05 +0200 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2009-12-13 19:20:43 +0100 |
| commit | 6f2ecaae72910211034c4f1955da97b2ff994265 (patch) | |
| tree | 68d7217dd24f72deeb40e733e0f9f29aecdfde49 | |
| parent | mfd: Refactor WM831x chip identification (diff) | |
| download | linux-6f2ecaae72910211034c4f1955da97b2ff994265.tar.xz linux-6f2ecaae72910211034c4f1955da97b2ff994265.zip | |
gpiolib: Make WM831x GPIO count dynamic
This supports future devices with fewer GPIOs.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| -rw-r--r-- | drivers/gpio/wm831x-gpio.c | 4 | ||||
| -rw-r--r-- | drivers/mfd/wm831x-core.c | 3 | ||||
| -rw-r--r-- | include/linux/mfd/wm831x/core.h | 2 |
3 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpio/wm831x-gpio.c b/drivers/gpio/wm831x-gpio.c index f9c09a54ec7f..f5e4934f1da1 100644 --- a/drivers/gpio/wm831x-gpio.c +++ b/drivers/gpio/wm831x-gpio.c @@ -23,8 +23,6 @@ #include <linux/mfd/wm831x/pdata.h> #include <linux/mfd/wm831x/gpio.h> -#define WM831X_GPIO_MAX 16 - struct wm831x_gpio { struct wm831x *wm831x; struct gpio_chip gpio_chip; @@ -192,7 +190,7 @@ static int __devinit wm831x_gpio_probe(struct platform_device *pdev) wm831x_gpio->wm831x = wm831x; wm831x_gpio->gpio_chip = template_chip; - wm831x_gpio->gpio_chip.ngpio = WM831X_GPIO_MAX; + wm831x_gpio->gpio_chip.ngpio = wm831x->num_gpio; wm831x_gpio->gpio_chip.dev = &pdev->dev; if (pdata && pdata->gpio_base) wm831x_gpio->gpio_chip.base = pdata->gpio_base; diff --git a/drivers/mfd/wm831x-core.c b/drivers/mfd/wm831x-core.c index 8504c6ef4a16..8d386c0c8027 100644 --- a/drivers/mfd/wm831x-core.c +++ b/drivers/mfd/wm831x-core.c @@ -1293,16 +1293,19 @@ static int wm831x_device_init(struct wm831x *wm831x, unsigned long id, int irq) switch (ret) { case WM8310: parent = WM8310; + wm831x->num_gpio = 16; dev_info(wm831x->dev, "WM8310 revision %c\n", 'A' + rev); break; case WM8311: parent = WM8311; + wm831x->num_gpio = 16; dev_info(wm831x->dev, "WM8311 revision %c\n", 'A' + rev); break; case WM8312: parent = WM8312; + wm831x->num_gpio = 16; dev_info(wm831x->dev, "WM8312 revision %c\n", 'A' + rev); break; diff --git a/include/linux/mfd/wm831x/core.h b/include/linux/mfd/wm831x/core.h index 91eb493bf14c..c1bc59f6cbf2 100644 --- a/include/linux/mfd/wm831x/core.h +++ b/include/linux/mfd/wm831x/core.h @@ -253,6 +253,8 @@ struct wm831x { unsigned int irq_base; int irq_masks[5]; + int num_gpio; + struct mutex auxadc_lock; /* The WM831x has a security key blocking access to certain |