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gpio: twl4030: Fix passing of pdata in the device tree case

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We still have some legacy code needing the callback functions
that won't work properly without platform data. To use platform
data for twl4030-gpio, we need to not trash the possible data.

Cc: [email protected]
Acked-by: Linus Walleij <[email protected]>
Signed-off-by: Fengguang Wu <[email protected]>
[[email protected]: folded in fix from Fengguang to use struct assignment]
Signed-off-by: Tony Lindgren <[email protected]>
This commit is contained in:
Tony Lindgren 2013-11-18 15:22:50 -08:00
commit fd3a5d5b83
1 changed files with 6 additions and 2 deletions
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8
drivers/gpio/gpio-twl4030.c
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@ -436,7 +436,8 @@ static int gpio_twl4030_debounce(u32 debounce, u8 mmc_cd)
static int gpio_twl4030_remove(struct platform_device *pdev);
static struct twl4030_gpio_platform_data *of_gpio_twl4030(struct device *dev)
static struct twl4030_gpio_platform_data *of_gpio_twl4030(struct device *dev,
struct twl4030_gpio_platform_data *pdata)
{
struct twl4030_gpio_platform_data *omap_twl_info;
@ -444,6 +445,9 @@ static struct twl4030_gpio_platform_data *of_gpio_twl4030(struct device *dev)
if (!omap_twl_info)
return NULL;
if (pdata)
*omap_twl_info = *pdata;
omap_twl_info->use_leds = of_property_read_bool(dev->of_node,
"ti,use-leds");
@ -501,7 +505,7 @@ no_irqs:
mutex_init(&priv->mutex);
if (node)
pdata = of_gpio_twl4030(&pdev->dev);
pdata = of_gpio_twl4030(&pdev->dev, pdata);
if (pdata == NULL) {
dev_err(&pdev->dev, "Platform data is missing\n");