Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
Input: wm9713 - support five wire panels
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
authored by Mark Brown and committed by Dmitry Torokhov 43f83a8f 5de4cd43
+22
drivers/input/touchscreen/wm9713.c
+22
drivers/input/touchscreen/wm9713.c
···
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MODULE_PARM_DESC(delay, "Set adc sample delay.");
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/*
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* Set adc mask function.
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*
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* Sources of glitch noise, such as signals driving an LCD display, may feed
···
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dig3 |= WM9712_RPU(rpu);
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dev_info(wm->dev, "setting pen detect pull-up to %d Ohms\n",
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64000 / rpu);
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}
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/* touchpanel pressure */
···
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MODULE_PARM_DESC(delay, "Set adc sample delay.");
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/*
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+
* Set five_wire = 1 to use a 5 wire touchscreen.
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*
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* NOTE: Five wire mode does not allow for readback of pressure.
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+
*/
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static int five_wire;
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module_param(five_wire, int, 0);
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+
MODULE_PARM_DESC(five_wire, "Set to '1' to use 5-wire touchscreen.");
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+
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/*
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* Set adc mask function.
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*
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* Sources of glitch noise, such as signals driving an LCD display, may feed
···
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dig3 |= WM9712_RPU(rpu);
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dev_info(wm->dev, "setting pen detect pull-up to %d Ohms\n",
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64000 / rpu);
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+
}
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+
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/* Five wire panel? */
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+
if (five_wire) {
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dig3 |= WM9713_45W;
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dev_info(wm->dev, "setting 5-wire touchscreen mode.");
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+
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if (pil) {
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dev_warn(wm->dev,
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"Pressure measurement not supported in 5 "
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+
"wire mode, disabling\n");
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pil = 0;
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+
}
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}
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/* touchpanel pressure */
+1
include/linux/wm97xx.h
+1
include/linux/wm97xx.h
···
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#define WM9713_ADCSEL_Y 0x0004 /* Y measurement */
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#define WM9713_ADCSEL_PRES 0x0008 /* Pressure measurement */
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#define WM9713_COO 0x0001 /* enable coordinate mode */
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#define WM9713_PDEN 0x0800 /* measure only when pen down */
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#define WM9713_ADCSEL_MASK 0x00fe /* ADC selection mask */
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#define WM9713_WAIT 0x0200 /* coordinate wait */
···
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#define WM9713_ADCSEL_Y 0x0004 /* Y measurement */
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#define WM9713_ADCSEL_PRES 0x0008 /* Pressure measurement */
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#define WM9713_COO 0x0001 /* enable coordinate mode */
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+
#define WM9713_45W 0x1000 /* set for 5 wire panel */
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#define WM9713_PDEN 0x0800 /* measure only when pen down */
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#define WM9713_ADCSEL_MASK 0x00fe /* ADC selection mask */
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#define WM9713_WAIT 0x0200 /* coordinate wait */