From e09b41010ba33a20a87472ee821fa407a5b8da36 Mon Sep 17 00:00:00 2001 From: José Pekkarinen Date: Mon, 11 Apr 2016 10:41:07 +0300 Subject: These changes are the raw update to linux-4.4.6-rt14. Kernel sources are taken from kernel.org, and rt patch from the rt wiki download page. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen --- kernel/drivers/input/touchscreen/of_touchscreen.c | 101 +++++++++++++--------- 1 file changed, 61 insertions(+), 40 deletions(-) (limited to 'kernel/drivers/input/touchscreen/of_touchscreen.c') diff --git a/kernel/drivers/input/touchscreen/of_touchscreen.c b/kernel/drivers/input/touchscreen/of_touchscreen.c index b82b5207c..bb6f2fe14 100644 --- a/kernel/drivers/input/touchscreen/of_touchscreen.c +++ b/kernel/drivers/input/touchscreen/of_touchscreen.c @@ -9,19 +9,27 @@ * */ -#include +#include #include #include #include -static u32 of_get_optional_u32(struct device_node *np, - const char *property) +static bool touchscreen_get_prop_u32(struct device *dev, + const char *property, + unsigned int default_value, + unsigned int *value) { - u32 val = 0; + u32 val; + int error; - of_property_read_u32(np, property, &val); + error = device_property_read_u32(dev, property, &val); + if (error) { + *value = default_value; + return false; + } - return val; + *value = val; + return true; } static void touchscreen_set_params(struct input_dev *dev, @@ -31,13 +39,9 @@ static void touchscreen_set_params(struct input_dev *dev, struct input_absinfo *absinfo; if (!test_bit(axis, dev->absbit)) { - /* - * Emit a warning only if the axis is not a multitouch - * axis, which might not be set by the driver. - */ - if (!input_is_mt_axis(axis)) - dev_warn(&dev->dev, - "DT specifies parameters but the axis is not set up\n"); + dev_warn(&dev->dev, + "DT specifies parameters but the axis %lu is not set up\n", + axis); return; } @@ -47,41 +51,58 @@ static void touchscreen_set_params(struct input_dev *dev, } /** - * touchscreen_parse_of_params - parse common touchscreen DT properties - * @dev: device that should be parsed + * touchscreen_parse_properties - parse common touchscreen DT properties + * @input: input device that should be parsed + * @multitouch: specifies whether parsed properties should be applied to + * single-touch or multi-touch axes * * This function parses common DT properties for touchscreens and setups the - * input device accordingly. The function keeps previously setuped default + * input device accordingly. The function keeps previously set up default * values if no value is specified via DT. */ -void touchscreen_parse_of_params(struct input_dev *dev) +void touchscreen_parse_properties(struct input_dev *input, bool multitouch) { - struct device_node *np = dev->dev.parent->of_node; - u32 maximum, fuzz; + struct device *dev = input->dev.parent; + unsigned int axis; + unsigned int maximum, fuzz; + bool data_present; - input_alloc_absinfo(dev); - if (!dev->absinfo) + input_alloc_absinfo(input); + if (!input->absinfo) return; - maximum = of_get_optional_u32(np, "touchscreen-size-x"); - fuzz = of_get_optional_u32(np, "touchscreen-fuzz-x"); - if (maximum || fuzz) { - touchscreen_set_params(dev, ABS_X, maximum, fuzz); - touchscreen_set_params(dev, ABS_MT_POSITION_X, maximum, fuzz); - } + axis = multitouch ? ABS_MT_POSITION_X : ABS_X; + data_present = touchscreen_get_prop_u32(dev, "touchscreen-size-x", + input_abs_get_max(input, + axis) + 1, + &maximum) | + touchscreen_get_prop_u32(dev, "touchscreen-fuzz-x", + input_abs_get_fuzz(input, axis), + &fuzz); + if (data_present) + touchscreen_set_params(input, axis, maximum - 1, fuzz); - maximum = of_get_optional_u32(np, "touchscreen-size-y"); - fuzz = of_get_optional_u32(np, "touchscreen-fuzz-y"); - if (maximum || fuzz) { - touchscreen_set_params(dev, ABS_Y, maximum, fuzz); - touchscreen_set_params(dev, ABS_MT_POSITION_Y, maximum, fuzz); - } + axis = multitouch ? ABS_MT_POSITION_Y : ABS_Y; + data_present = touchscreen_get_prop_u32(dev, "touchscreen-size-y", + input_abs_get_max(input, + axis) + 1, + &maximum) | + touchscreen_get_prop_u32(dev, "touchscreen-fuzz-y", + input_abs_get_fuzz(input, axis), + &fuzz); + if (data_present) + touchscreen_set_params(input, axis, maximum - 1, fuzz); - maximum = of_get_optional_u32(np, "touchscreen-max-pressure"); - fuzz = of_get_optional_u32(np, "touchscreen-fuzz-pressure"); - if (maximum || fuzz) { - touchscreen_set_params(dev, ABS_PRESSURE, maximum, fuzz); - touchscreen_set_params(dev, ABS_MT_PRESSURE, maximum, fuzz); - } + axis = multitouch ? ABS_MT_PRESSURE : ABS_PRESSURE; + data_present = touchscreen_get_prop_u32(dev, + "touchscreen-max-pressure", + input_abs_get_max(input, axis), + &maximum) | + touchscreen_get_prop_u32(dev, + "touchscreen-fuzz-pressure", + input_abs_get_fuzz(input, axis), + &fuzz); + if (data_present) + touchscreen_set_params(input, axis, maximum, fuzz); } -EXPORT_SYMBOL(touchscreen_parse_of_params); +EXPORT_SYMBOL(touchscreen_parse_properties); -- cgit 1.2.3-korg