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| author |   Linus Walleij <linus.walleij@linaro.org> | 2018-11-15 09:48:18 -0800 |
|---|---|---|
| committer |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-11-15 09:52:26 -0800 |
| commit | 1be7aa9b6eb91975800b880481f077c01ae01a26 (patch) | |
| tree | ed9a1cc32c7af7402863d785a4ae1aa0279a240e /include/linux/platform_data | |
| parent | Input: synaptics - avoid using uninitialized variable when probing (diff) | |
| download | linux-dev-1be7aa9b6eb91975800b880481f077c01ae01a26.tar.xz linux-dev-1be7aa9b6eb91975800b880481f077c01ae01a26.zip | |
Input: ad7879 - drop platform data support
This driver supports configuration via platform data but
absolutely nothing in the upstream kernel uses it. Since this
configuration allows harmful practices such as encoding the
GPIO base for the chip, delete platform data support so that
no new platform using it gets introduced.
Also: include the right driver header, not <linux/gpio.h>.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
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 | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/include/linux/platform_data/ad7879.h b/include/linux/platform_data/ad7879.h deleted file mode 100644 index 6655cc8453ac..000000000000 --- a/include/linux/platform_data/ad7879.h +++ /dev/null @@ -1,42 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* 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; -}; |