From 81f8115305f821335cf9e16110bf0806f7b93283 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Thu, 28 Apr 2011 13:25:36 +0900 Subject: i2c: i2c-sh_mobile bus speed platform data V2 Add support to the i2c-sh_mobile driver for setting the I2C bus speed using platform data. Signed-off-by: Magnus Damm Signed-off-by: Ben Dooks --- include/linux/i2c/i2c-sh_mobile.h | 10 ++++++++++ 1 file changed, 10 insertions(+) create mode 100644 include/linux/i2c/i2c-sh_mobile.h (limited to 'include/linux/i2c') diff --git a/include/linux/i2c/i2c-sh_mobile.h b/include/linux/i2c/i2c-sh_mobile.h new file mode 100644 index 0000000..beda708 --- /dev/null +++ b/include/linux/i2c/i2c-sh_mobile.h @@ -0,0 +1,10 @@ +#ifndef __I2C_SH_MOBILE_H__ +#define __I2C_SH_MOBILE_H__ + +#include + +struct i2c_sh_mobile_platform_data { + unsigned long bus_speed; +}; + +#endif /* __I2C_SH_MOBILE_H__ */ -- cgit v1.1 From 36682b81de32090f5c9fac165e71ab8939aab8c0 Mon Sep 17 00:00:00 2001 From: Zhang Jiejing Date: Wed, 11 May 2011 14:32:01 -0700 Subject: Input: add driver FSL MPR121 capacitive touch sensor This patch adds basic support for Freescale MPR121 capacitive touch sensor. It's an i2c controller with up to 12 capacitance sensing inputs. Product information (data sheet, application notes) can be found here: http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MPR121 Signed-off-by: Zhang Jiejing Signed-off-by: Dmitry Torokhov --- include/linux/i2c/mpr121_touchkey.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 include/linux/i2c/mpr121_touchkey.h (limited to 'include/linux/i2c') diff --git a/include/linux/i2c/mpr121_touchkey.h b/include/linux/i2c/mpr121_touchkey.h new file mode 100644 index 0000000..f0bcc38 --- /dev/null +++ b/include/linux/i2c/mpr121_touchkey.h @@ -0,0 +1,20 @@ +/* Header file for Freescale MPR121 Capacitive Touch Sensor */ + +#ifndef _MPR121_TOUCHKEY_H +#define _MPR121_TOUCHKEY_H + +/** + * struct mpr121_platform_data - platform data for mpr121 sensor + * @keymap: pointer to array of KEY_* values representing keymap + * @keymap_size: size of the keymap + * @wakeup: configure the button as a wake-up source + * @vdd_uv: VDD voltage in uV + */ +struct mpr121_platform_data { + const unsigned short *keymap; + unsigned int keymap_size; + bool wakeup; + int vdd_uv; +}; + +#endif /* _MPR121_TOUCHKEY_H */ -- cgit v1.1 From 84005eb5ea2939d448047fcf6924b3b9b6ed974d Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 17 May 2011 09:31:01 -0700 Subject: Input: tsc2007 - add max_rt parameter to platform data Finger touch events or very quick stylus events on low-quality panels can cause the tsc2007 to read bogus values. Looking at oscilloscope snapshots, this seems to be caused by the touch event disappearing during the measurements. These bogus values result in misclicks, where the X and Y values deviate from the real position. Most of these misclicks can be filtered out by setting a low enough threshold for the maximum resistance (which is loosely the inverse of the pressure) allowed to consider a set of values valid. Since this behaviour is largely dependent on the type and quality of the panel, this commit introduces the max_rt parameter. The default value is kept at MAX_12BIT. Signed-off-by: Thierry Reding Signed-off-by: Dmitry Torokhov --- include/linux/i2c/tsc2007.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/i2c') diff --git a/include/linux/i2c/tsc2007.h b/include/linux/i2c/tsc2007.h index c6361fb..d95f113 100644 --- a/include/linux/i2c/tsc2007.h +++ b/include/linux/i2c/tsc2007.h @@ -6,6 +6,7 @@ struct tsc2007_platform_data { u16 model; /* 2007. */ u16 x_plate_ohms; + u16 max_rt; /* max. resistance above which samples are ignored */ int (*get_pendown_state)(void); void (*clear_penirq)(void); /* If needed, clear 2nd level -- cgit v1.1 From 2d137c7ed25f9754f52495af570897ad993e4fe7 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 17 May 2011 09:31:33 -0700 Subject: Input: tsc2007 - add poll_delay parameter to platform data Depending on the quality of the touch panel, the time for the X-, X+, Y- and Y+ inputs to settle may vary. The poll_delay parameter can be used to override the default of 1 millisecond. Cc: Dmitry Torokhov Cc: Kwangwoo Lee Signed-off-by: Thierry Reding Signed-off-by: Dmitry Torokhov --- include/linux/i2c/tsc2007.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux/i2c') diff --git a/include/linux/i2c/tsc2007.h b/include/linux/i2c/tsc2007.h index d95f113..342b130 100644 --- a/include/linux/i2c/tsc2007.h +++ b/include/linux/i2c/tsc2007.h @@ -7,6 +7,8 @@ struct tsc2007_platform_data { u16 model; /* 2007. */ u16 x_plate_ohms; u16 max_rt; /* max. resistance above which samples are ignored */ + unsigned long poll_delay; /* delay (in ms) after pen-down event + before polling starts */ int (*get_pendown_state)(void); void (*clear_penirq)(void); /* If needed, clear 2nd level -- cgit v1.1 From 1af38eac8cdb70dbad3086b4f1bf7296eb1b09b1 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 17 May 2011 09:32:02 -0700 Subject: Input: tsc2007 - add poll_period parameter to platform data This new parameter allows the polling frequency to be configured while keeping the default of once every millisecond. Signed-off-by: Thierry Reding Signed-off-by: Dmitry Torokhov --- include/linux/i2c/tsc2007.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/i2c') diff --git a/include/linux/i2c/tsc2007.h b/include/linux/i2c/tsc2007.h index 342b130..a51dac0 100644 --- a/include/linux/i2c/tsc2007.h +++ b/include/linux/i2c/tsc2007.h @@ -9,6 +9,7 @@ struct tsc2007_platform_data { u16 max_rt; /* max. resistance above which samples are ignored */ unsigned long poll_delay; /* delay (in ms) after pen-down event before polling starts */ + unsigned long poll_period; /* time (in ms) between samples */ int (*get_pendown_state)(void); void (*clear_penirq)(void); /* If needed, clear 2nd level -- cgit v1.1 From 891e376b1e864519bf7e49fa741f473078318530 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 17 May 2011 09:32:29 -0700 Subject: Input: tsc2007 - add X, Y and Z fuzz factors to platform data These new platform-specific values can be used to set the fuzz parameter passed to the input_set_abs_params() function for the ABS_X, ABS_Y and ABS_PRESSURE axes. Signed-off-by: Thierry Reding Signed-off-by: Dmitry Torokhov --- include/linux/i2c/tsc2007.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux/i2c') diff --git a/include/linux/i2c/tsc2007.h b/include/linux/i2c/tsc2007.h index a51dac0..591427a 100644 --- a/include/linux/i2c/tsc2007.h +++ b/include/linux/i2c/tsc2007.h @@ -10,6 +10,9 @@ struct tsc2007_platform_data { unsigned long poll_delay; /* delay (in ms) after pen-down event before polling starts */ unsigned long poll_period; /* time (in ms) between samples */ + int fuzzx; /* fuzz factor for X, Y and pressure axes */ + int fuzzy; + int fuzzz; int (*get_pendown_state)(void); void (*clear_penirq)(void); /* If needed, clear 2nd level -- cgit v1.1