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From: Rabin Vincent on 9 Aug 2010 09:50
For board-specific initialization.

Cc: Samuel Ortiz <sameo(a)linux.intel.com>
Cc: linux-kernel(a)vger.kernel.org
Acked-by: Linus Walleij <linus.walleij(a)stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent(a)stericsson.com>
---
drivers/gpio/tc35892-gpio.c | 8 ++++++++
include/linux/mfd/tc35892.h | 4 ++++
2 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/drivers/gpio/tc35892-gpio.c b/drivers/gpio/tc35892-gpio.c
index 1be6288..7e10c93 100644
--- a/drivers/gpio/tc35892-gpio.c
+++ b/drivers/gpio/tc35892-gpio.c
@@ -322,6 +322,9 @@ static int __devinit tc35892_gpio_probe(struct platform_device *pdev)
goto out_freeirq;
}

+ if (pdata->setup)
+ pdata->setup(tc35892, tc35892_gpio->chip.base);
+
platform_set_drvdata(pdev, tc35892_gpio);

return 0;
@@ -338,9 +341,14 @@ out_free:
static int __devexit tc35892_gpio_remove(struct platform_device *pdev)
{
struct tc35892_gpio *tc35892_gpio = platform_get_drvdata(pdev);
+ struct tc35892 *tc35892 = tc35892_gpio->tc35892;
+ struct tc35892_gpio_platform_data *pdata = tc35892->pdata->gpio;
int irq = platform_get_irq(pdev, 0);
int ret;

+ if (pdata->remove)
+ pdata->remove(tc35892, tc35892_gpio->chip.base);
+
ret = gpiochip_remove(&tc35892_gpio->chip);
if (ret < 0) {
dev_err(tc35892_gpio->dev,
diff --git a/include/linux/mfd/tc35892.h b/include/linux/mfd/tc35892.h
index e47f770..eff3094 100644
--- a/include/linux/mfd/tc35892.h
+++ b/include/linux/mfd/tc35892.h
@@ -111,9 +111,13 @@ extern int tc35892_set_bits(struct tc35892 *tc35892, u8 reg, u8 mask, u8 val);
* struct tc35892_gpio_platform_data - TC35892 GPIO platform data
* @gpio_base: first gpio number assigned to TC35892. A maximum of
* %TC35892_NR_GPIOS GPIOs will be allocated.
+ * @setup: callback for board-specific initialization
+ * @remove: callback for board-specific teardown
*/
struct tc35892_gpio_platform_data {
int gpio_base;
+ void (*setup)(struct tc35892 *tc35892, unsigned gpio_base);
+ void (*remove)(struct tc35892 *tc35892, unsigned gpio_base);
};

/**
--
1.7.2.dirty

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Prev: [PATCH 3/3] usb gadget: don't save bind callback in struct usb_configuration
Next: lpfc: change spin_lock_irq() to spin_lock()