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hwmon: lis3: Adjust fuzziness for 8 bit device
Default fuziness is set smaller for 8 device. In 12 bit device LSB is quite close to 1 mg (mg = 1 / 1000 of earth gravity). In 8bit device LSB is about 18 mg. Set fuziness to 1 for 8 bit device. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Acked-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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1 changed files with 14 additions and 4 deletions
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@ -71,8 +71,10 @@
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#define LIS3_SENSITIVITY_12B ((LIS3_ACCURACY * 1000) / 1024)
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#define LIS3_SENSITIVITY_8B (18 * LIS3_ACCURACY)
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#define LIS3_DEFAULT_FUZZ 3
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#define LIS3_DEFAULT_FLAT 3
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#define LIS3_DEFAULT_FUZZ_12B 3
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#define LIS3_DEFAULT_FLAT_12B 3
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#define LIS3_DEFAULT_FUZZ_8B 1
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#define LIS3_DEFAULT_FLAT_8B 1
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struct lis3lv02d lis3_dev = {
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.misc_wait = __WAIT_QUEUE_HEAD_INITIALIZER(lis3_dev.misc_wait),
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@ -564,8 +566,16 @@ int lis3lv02d_joystick_enable(void)
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set_bit(EV_ABS, input_dev->evbit);
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max_val = (lis3_dev.mdps_max_val * lis3_dev.scale) / LIS3_ACCURACY;
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fuzz = (LIS3_DEFAULT_FUZZ * lis3_dev.scale) / LIS3_ACCURACY;
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flat = (LIS3_DEFAULT_FLAT * lis3_dev.scale) / LIS3_ACCURACY;
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if (lis3_dev.whoami == WAI_12B) {
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fuzz = LIS3_DEFAULT_FUZZ_12B;
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flat = LIS3_DEFAULT_FLAT_12B;
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} else {
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fuzz = LIS3_DEFAULT_FUZZ_8B;
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flat = LIS3_DEFAULT_FLAT_8B;
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}
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fuzz = (fuzz * lis3_dev.scale) / LIS3_ACCURACY;
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flat = (flat * lis3_dev.scale) / LIS3_ACCURACY;
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input_set_abs_params(input_dev, ABS_X, -max_val, max_val, fuzz, flat);
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input_set_abs_params(input_dev, ABS_Y, -max_val, max_val, fuzz, flat);
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input_set_abs_params(input_dev, ABS_Z, -max_val, max_val, fuzz, flat);
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