From: Mian Yousaf Kaukab <[email protected]>
Signed-off-by: Lee Jones <[email protected]>
Signed-off-by: Bibek Basu <[email protected]>
Signed-off-by: Mian Yousaf Kaukab <[email protected]>
Reviewed-by: Jonas ABERG <[email protected]>
Tested-by: Jonas ABERG <[email protected]>
---
drivers/gpio/gpio-ab8500.c | 17 +++++++++++++++++
include/linux/mfd/abx500/ab8500-gpio.h | 3 +++
2 files changed, 20 insertions(+)
diff --git a/drivers/gpio/gpio-ab8500.c b/drivers/gpio/gpio-ab8500.c
index dd95cb3..b71bb72 100644
--- a/drivers/gpio/gpio-ab8500.c
+++ b/drivers/gpio/gpio-ab8500.c
@@ -507,6 +507,23 @@ static int __devexit ab8500_gpio_remove(struct
platform_device *pdev)
return 0;
}
+int ab8500_config_pulldown(struct device *dev,
+ enum ab8500_pin gpio, bool enable)
+{
+ u8 offset = gpio - AB8500_PIN_GPIO1;
+ u8 pos = offset % 8;
+ u8 val = enable ? 0 : 1;
+ u8 reg = AB8500_GPIO_PUD1_REG + (offset / 8);
+ int ret;
+
+ ret = abx500_mask_and_set_register_interruptible(dev,
+ AB8500_MISC, reg, 1 << pos, val << pos);
+ if (ret < 0)
+ dev_err(dev, "%s write failed\n", __func__);
+ return ret;
+}
+EXPORT_SYMBOL(ab8500_config_pulldown);
+
/*
* ab8500_gpio_config_select()
*
diff --git a/include/linux/mfd/abx500/ab8500-gpio.h
b/include/linux/mfd/abx500/ab8500-gpio.h
index 94e85ca..48325db 100644
--- a/include/linux/mfd/abx500/ab8500-gpio.h
+++ b/include/linux/mfd/abx500/ab8500-gpio.h
@@ -67,6 +67,9 @@ enum ab8500_pin {
AB8500_PIN_GPIO42,
};
+int ab8500_config_pulldown(struct device *dev,
+ enum ab8500_pin gpio, bool enable);
+
int ab8500_gpio_config_select(struct device *dev,
enum ab8500_pin gpio, bool gpio_select);
--
1.7.9.5
--
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