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| author | Stefan Agner <stefan@agner.ch> | 2016-03-08 21:34:04 +0300 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2016-03-08 21:51:10 +0300 |
| commit | 4774f400935fbb44a25f5e8fd5c5583431e28ac1 (patch) | |
| tree | 657ed1110320ca33ac3ab33073e30e8bffcae5e4 /include/linux/platform_data | |
| parent | cd1480ae4dd0bbfd3d7339d00c3573e4c64ebbd5 (diff) | |
| download | linux-4774f400935fbb44a25f5e8fd5c5583431e28ac1.tar.xz | |
Input: ad7879 - move header to platform_data directory
The header file is used by the SPI and I2C variant of the driver.
Therefore, move it to a more generic place under platform_data.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'include/linux/platform_data')
| -rw-r--r-- | include/linux/platform_data/ad7879.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/include/linux/platform_data/ad7879.h b/include/linux/platform_data/ad7879.h new file mode 100644 index 000000000000..69e2e1fd2bc8 --- /dev/null +++ b/include/linux/platform_data/ad7879.h @@ -0,0 +1,41 @@ +/* linux/platform_data/ad7879.h */ + +/* Touchscreen characteristics vary between boards and models. The + * platform_data for the device's "struct device" holds this information. + * + * It's OK if the min/max values are zero. + */ +struct ad7879_platform_data { + u16 model; /* 7879 */ + u16 x_plate_ohms; + u16 x_min, x_max; + u16 y_min, y_max; + u16 pressure_min, pressure_max; + + bool swap_xy; /* swap x and y axes */ + + /* [0..255] 0=OFF Starts at 1=550us and goes + * all the way to 9.440ms in steps of 35us. + */ + u8 pen_down_acc_interval; + /* [0..15] Starts at 0=128us and goes all the + * way to 4.096ms in steps of 128us. + */ + u8 first_conversion_delay; + /* [0..3] 0 = 2us, 1 = 4us, 2 = 8us, 3 = 16us */ + u8 acquisition_time; + /* [0..3] Average X middle samples 0 = 2, 1 = 4, 2 = 8, 3 = 16 */ + u8 averaging; + /* [0..3] Perform X measurements 0 = OFF, + * 1 = 4, 2 = 8, 3 = 16 (median > averaging) + */ + u8 median; + /* 1 = AUX/VBAT/GPIO export GPIO to gpiolib + * requires CONFIG_GPIOLIB + */ + bool gpio_export; + /* identifies the first GPIO number handled by this chip; + * or, if negative, requests dynamic ID allocation. + */ + s32 gpio_base; +}; |