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| author | Matt Ranostay <mranostay@gmail.com> | 2014-11-01 04:02:08 +0100 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-11-02 08:09:11 +0100 |
| commit | 6bdd2fd1ed6f66597f3cff75c1bb1569beec2fc9 (patch) | |
| tree | 2f7bb73033c425f4762292f1cc0dcc67d8e155ea /drivers/input | |
| parent | Input: cap11xx - add support for various cap11xx devices (diff) | |
| download | linux-6bdd2fd1ed6f66597f3cff75c1bb1569beec2fc9.tar.xz linux-6bdd2fd1ed6f66597f3cff75c1bb1569beec2fc9.zip | |
Input: cap11xx - support for irq-active-high option
Some applications need to use the irq-active-high push-pull option.
This allows it be enabled in the device tree child node.
Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/keyboard/cap11xx.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/input/keyboard/cap11xx.c b/drivers/input/keyboard/cap11xx.c index eeda1f9359cd..4f59f0bab28f 100644 --- a/drivers/input/keyboard/cap11xx.c +++ b/drivers/input/keyboard/cap11xx.c @@ -45,6 +45,7 @@ #define CAP11XX_REG_STANDBY_SENSITIVITY 0x42 #define CAP11XX_REG_STANDBY_THRESH 0x43 #define CAP11XX_REG_CONFIG2 0x44 +#define CAP11XX_REG_CONFIG2_ALT_POL BIT(6) #define CAP11XX_REG_SENSOR_BASE_CNT(X) (0x50 + (X)) #define CAP11XX_REG_SENSOR_CALIB (0xb1 + (X)) #define CAP11XX_REG_SENSOR_CALIB_LSB1 0xb9 @@ -263,6 +264,13 @@ static int cap11xx_i2c_probe(struct i2c_client *i2c_client, dev_err(dev, "Invalid sensor-gain value %d\n", gain32); } + if (of_property_read_bool(node, "microchip,irq-active-high")) { + error = regmap_update_bits(priv->regmap, CAP11XX_REG_CONFIG2, + CAP11XX_REG_CONFIG2_ALT_POL, 0); + if (error) + return error; + } + /* Provide some useful defaults */ for (i = 0; i < cap->num_channels; i++) priv->keycodes[i] = KEY_A + i; |