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* [PATCH v2 00/49] atmel_mxt_ts misc
@ 2019-08-27  6:25 ` Jiada Wang
  0 siblings, 0 replies; 10+ messages in thread
From: Jiada Wang @ 2019-08-27  6:25 UTC (permalink / raw)
  To: nick, dmitry.torokhov; +Cc: linux-input, linux-kernel, jiada_wang, george_davis

This patch-set forward ports Nick Dyer's work in ndyer/linux github repository
as long as some other features and fixes

Balasubramani Vivekanandan (2):
  Input: atmel_mxt_ts: Limit the max bytes transferred in an i2c
    transaction
  Input: atmel_mxt_ts: use gpiod_set_value_cansleep for reset pin

Dean Jenkins (1):
  Input: atmel_mxt_ts: return error from
    mxt_process_messages_until_invalid()

Deepak Das (6):
  Input: Atmel: improve error handling in mxt_start()
  Input: Atmel: improve error handling in mxt_initialize()
  Input: Atmel: improve error handling in mxt_update_cfg()
  Input: Atmel: Improve error handling in mxt_initialize_input_device()
  Input: Atmel: handle ReportID "0x00" while processing T5 messages
  Input: Atmel: use T44 object to process T5 messages

George G. Davis (1):
  input: atmel_mxt_ts: export GPIO reset line via sysfs

Jiada Wang (4):
  Input: switch to use return value of input_mt_report_slot_state
  Input: introduce input_mt_report_slot_inactive
  Input: atmel_mxt_ts - eliminate data->raw_info_block
  Input: atmel_mxt_ts - Fix compilation warning

Karl Tsou (1):
  Input: atmel_mxt_ts - add debug for T92 gesture and T93 touch seq msgs

Kautuk Consul (2):
  Input: atmel_mxt_ts - Change call-points of mxt_free_* functions
  Input: atmel_mxt_ts - rely on calculated_crc rather than file
    config_crc

Naveen Chakka (2):
  input: touchscreen: atmel_mxt_ts: Added sysfs entry for touchscreen
    status
  input: atmel_mxt_ts: added sysfs interface to update atmel T38 data

Nick Dyer (26):
  Input: atmel_mxt_ts - rework sysfs init/remove
  Input: atmel_mxt_ts - only read messages in mxt_acquire_irq() when
    necessary
  Input: atmel_mxt_ts - split large i2c transfers into blocks
  Input: atmel_mxt_ts - output status from T48 Noise Supression
  Input: atmel_mxt_ts - output status from T42 Touch Suppression
  Input: atmel_mxt_ts - implement T9 vector/orientation support
  Input: atmel_mxt_ts - implement T15 Key Array support
  Input: atmel_mxt_ts - handle reports from T47 Stylus object
  Input: atmel_mxt_ts - implement support for T107 active stylus
  Input: atmel_mxt_ts - release touch state during suspend
  Input: atmel_mxt_ts - add regulator control support
  Input: atmel_mxt_ts - report failures in suspend/resume
  Input: atmel_mxt_ts - allow specification of firmware file name
  Input: atmel_mxt_ts - handle cfg filename via pdata/sysfs
  Input: atmel_mxt_ts - allow input name to be specified in platform
    data
  Input: atmel_mxt_ts - refactor firmware flash to extract context into
    struct
  Input: atmel_mxt_ts - refactor code to enter bootloader into separate
    func
  Input: atmel_mxt_ts - combine bootloader version query with probe
  Input: atmel_mxt_ts - improve bootloader state machine handling
  Input: atmel_mxt_ts - rename bl_completion to chg_completion
  Input: atmel_mxt_ts - make bootloader interrupt driven
  Input: atmel_mxt_ts - delay enabling IRQ when not using regulators
  Input: atmel_mxt_ts - implement I2C retries
  Input: atmel_mxt_ts - orientation is not present in hover
  Input: atmel_mxt_ts - implement debug output for messages
  Input: atmel_mxt_ts - implement improved debug message interface

Nikhil Ravindran (1):
  Input: atmel_mxt_ts: Add support for run self-test routine.

Sanjeev Chugh (1):
  Input: atmel_mxt_ts: Implement synchronization during various
    operation

karl tsou (1):
  Input: atmel_mxt_ts - add config checksum attribute to sysfs

keerthikumarp (1):
  input: atmel_mxt_ts: Add Missing Delay for reset handling of Atmel
    touch panel controller in detachable displays.
---
v2: 
Following commit in v1 patchset has been split into two commits
Input: introduce input_mt_report_slot_inactive

Following commits have been updated compared to v1 patchset
Input: atmel_mxt_ts - split large i2c transfers into blocks
Input: atmel_mxt_ts - output status from T42 Touch Suppression

Following commits in v1 patchset have been squashed
Input: touchscreen: Atmel: Add device tree support for T15 key array objects
Input: atmel_mxt_ts - check data->input_dev is not null in mxt_input_sync()
Input: atmel_mxt_ts - check firmware format before entering bootloader
Input: atmel_mxt_ts: update stale use_retrigen_workaround flag
input: atmel_mxt_ts: move bootloader probe from mxt_initialize()
input: Atmel: limit the max bytes transferred while reading T5 messages
Input: atmel_mxt_ts: Use msecs_to_jiffies() instead of HZ
Input: atmel_mxt_ts: Use complete when in_bootloader true 
Input: atmel_mxt_ts: Prevent crash due to freeing of input device
input: atmel_mxt_ts: Add NULL check for sysfs attribute debug_msg_attr

Following commits in v1 patchset have been dropped:
Input: atmel_mxt_ts - configure and use gpios as real gpios
Input: touchscreen: Atmel: Enable IRQ_DISABLE_UNLAZY flag for interrupt
Input: atmel_mxt_ts - add memory access interface via sysfs
Input: atmel_mxt_ts: Remove sysfs attributes during driver detach
Input: atmel_mxt_ts: Avoid race condition in freeing of input device


v1: initial version
---
 .../bindings/input/atmel,maxtouch.txt         |   14 +
 MAINTAINERS                                   |    1 +
 drivers/hid/hid-alps.c                        |    3 +-
 drivers/hid/hid-asus.c                        |    3 +-
 drivers/hid/hid-elan.c                        |    3 +-
 drivers/hid/hid-logitech-hidpp.c              |    5 +-
 drivers/hid/hid-magicmouse.c                  |    3 +-
 drivers/hid/hid-multitouch.c                  |    9 +-
 drivers/hid/hid-sony.c                        |    8 +-
 drivers/hid/wacom_wac.c                       |   15 +-
 drivers/input/input-mt.c                      |    2 +-
 drivers/input/misc/xen-kbdfront.c             |    2 +-
 drivers/input/mouse/elan_i2c_core.c           |    2 +-
 drivers/input/mouse/elantech.c                |    5 +-
 drivers/input/mouse/focaltech.c               |    3 +-
 drivers/input/mouse/sentelic.c                |    3 +-
 drivers/input/mouse/synaptics.c               |    3 +-
 drivers/input/rmi4/rmi_2d_sensor.c            |    6 +-
 drivers/input/touchscreen/atmel_mxt_ts.c      | 2269 ++++++++++++++---
 drivers/input/touchscreen/chipone_icn8505.c   |    4 +-
 drivers/input/touchscreen/cyttsp4_core.c      |    5 +-
 drivers/input/touchscreen/cyttsp_core.c       |    2 +-
 drivers/input/touchscreen/egalax_ts.c         |    3 +-
 drivers/input/touchscreen/hideep.c            |    7 +-
 drivers/input/touchscreen/ili210x.c           |    3 +-
 drivers/input/touchscreen/melfas_mip4.c       |    4 +-
 drivers/input/touchscreen/mms114.c            |    6 +-
 drivers/input/touchscreen/penmount.c          |    5 +-
 drivers/input/touchscreen/raspberrypi-ts.c    |    2 +-
 drivers/input/touchscreen/raydium_i2c_ts.c    |    4 +-
 drivers/input/touchscreen/sis_i2c.c           |    5 +-
 drivers/input/touchscreen/stmfts.c            |    2 +-
 drivers/input/touchscreen/surface3_spi.c      |    4 +-
 drivers/input/touchscreen/wacom_w8001.c       |    3 +-
 drivers/input/touchscreen/zforce_ts.c         |    6 +-
 include/dt-bindings/input/atmel_mxt_ts.h      |   22 +
 include/linux/input/mt.h                      |    5 +
 37 files changed, 2026 insertions(+), 425 deletions(-)
 create mode 100644 include/dt-bindings/input/atmel_mxt_ts.h

-- 
2.19.2


^ permalink raw reply	[flat|nested] 10+ messages in thread

* [PATCH v2 00/49] atmel_mxt_ts misc
@ 2019-08-27  6:25 ` Jiada Wang
  0 siblings, 0 replies; 10+ messages in thread
From: Jiada Wang @ 2019-08-27  6:25 UTC (permalink / raw)
  To: nick, dmitry.torokhov; +Cc: linux-input, linux-kernel, jiada_wang, george_davis

This patch-set forward ports Nick Dyer's work in ndyer/linux github repository
as long as some other features and fixes

Balasubramani Vivekanandan (2):
  Input: atmel_mxt_ts: Limit the max bytes transferred in an i2c
    transaction
  Input: atmel_mxt_ts: use gpiod_set_value_cansleep for reset pin

Dean Jenkins (1):
  Input: atmel_mxt_ts: return error from
    mxt_process_messages_until_invalid()

Deepak Das (6):
  Input: Atmel: improve error handling in mxt_start()
  Input: Atmel: improve error handling in mxt_initialize()
  Input: Atmel: improve error handling in mxt_update_cfg()
  Input: Atmel: Improve error handling in mxt_initialize_input_device()
  Input: Atmel: handle ReportID "0x00" while processing T5 messages
  Input: Atmel: use T44 object to process T5 messages

George G. Davis (1):
  input: atmel_mxt_ts: export GPIO reset line via sysfs

Jiada Wang (4):
  Input: switch to use return value of input_mt_report_slot_state
  Input: introduce input_mt_report_slot_inactive
  Input: atmel_mxt_ts - eliminate data->raw_info_block
  Input: atmel_mxt_ts - Fix compilation warning

Karl Tsou (1):
  Input: atmel_mxt_ts - add debug for T92 gesture and T93 touch seq msgs

Kautuk Consul (2):
  Input: atmel_mxt_ts - Change call-points of mxt_free_* functions
  Input: atmel_mxt_ts - rely on calculated_crc rather than file
    config_crc

Naveen Chakka (2):
  input: touchscreen: atmel_mxt_ts: Added sysfs entry for touchscreen
    status
  input: atmel_mxt_ts: added sysfs interface to update atmel T38 data

Nick Dyer (26):
  Input: atmel_mxt_ts - rework sysfs init/remove
  Input: atmel_mxt_ts - only read messages in mxt_acquire_irq() when
    necessary
  Input: atmel_mxt_ts - split large i2c transfers into blocks
  Input: atmel_mxt_ts - output status from T48 Noise Supression
  Input: atmel_mxt_ts - output status from T42 Touch Suppression
  Input: atmel_mxt_ts - implement T9 vector/orientation support
  Input: atmel_mxt_ts - implement T15 Key Array support
  Input: atmel_mxt_ts - handle reports from T47 Stylus object
  Input: atmel_mxt_ts - implement support for T107 active stylus
  Input: atmel_mxt_ts - release touch state during suspend
  Input: atmel_mxt_ts - add regulator control support
  Input: atmel_mxt_ts - report failures in suspend/resume
  Input: atmel_mxt_ts - allow specification of firmware file name
  Input: atmel_mxt_ts - handle cfg filename via pdata/sysfs
  Input: atmel_mxt_ts - allow input name to be specified in platform
    data
  Input: atmel_mxt_ts - refactor firmware flash to extract context into
    struct
  Input: atmel_mxt_ts - refactor code to enter bootloader into separate
    func
  Input: atmel_mxt_ts - combine bootloader version query with probe
  Input: atmel_mxt_ts - improve bootloader state machine handling
  Input: atmel_mxt_ts - rename bl_completion to chg_completion
  Input: atmel_mxt_ts - make bootloader interrupt driven
  Input: atmel_mxt_ts - delay enabling IRQ when not using regulators
  Input: atmel_mxt_ts - implement I2C retries
  Input: atmel_mxt_ts - orientation is not present in hover
  Input: atmel_mxt_ts - implement debug output for messages
  Input: atmel_mxt_ts - implement improved debug message interface

Nikhil Ravindran (1):
  Input: atmel_mxt_ts: Add support for run self-test routine.

Sanjeev Chugh (1):
  Input: atmel_mxt_ts: Implement synchronization during various
    operation

karl tsou (1):
  Input: atmel_mxt_ts - add config checksum attribute to sysfs

keerthikumarp (1):
  input: atmel_mxt_ts: Add Missing Delay for reset handling of Atmel
    touch panel controller in detachable displays.
---
v2: 
Following commit in v1 patchset has been split into two commits
Input: introduce input_mt_report_slot_inactive

Following commits have been updated compared to v1 patchset
Input: atmel_mxt_ts - split large i2c transfers into blocks
Input: atmel_mxt_ts - output status from T42 Touch Suppression

Following commits in v1 patchset have been squashed
Input: touchscreen: Atmel: Add device tree support for T15 key array objects
Input: atmel_mxt_ts - check data->input_dev is not null in mxt_input_sync()
Input: atmel_mxt_ts - check firmware format before entering bootloader
Input: atmel_mxt_ts: update stale use_retrigen_workaround flag
input: atmel_mxt_ts: move bootloader probe from mxt_initialize()
input: Atmel: limit the max bytes transferred while reading T5 messages
Input: atmel_mxt_ts: Use msecs_to_jiffies() instead of HZ
Input: atmel_mxt_ts: Use complete when in_bootloader true 
Input: atmel_mxt_ts: Prevent crash due to freeing of input device
input: atmel_mxt_ts: Add NULL check for sysfs attribute debug_msg_attr

Following commits in v1 patchset have been dropped:
Input: atmel_mxt_ts - configure and use gpios as real gpios
Input: touchscreen: Atmel: Enable IRQ_DISABLE_UNLAZY flag for interrupt
Input: atmel_mxt_ts - add memory access interface via sysfs
Input: atmel_mxt_ts: Remove sysfs attributes during driver detach
Input: atmel_mxt_ts: Avoid race condition in freeing of input device


v1: initial version
---
 .../bindings/input/atmel,maxtouch.txt         |   14 +
 MAINTAINERS                                   |    1 +
 drivers/hid/hid-alps.c                        |    3 +-
 drivers/hid/hid-asus.c                        |    3 +-
 drivers/hid/hid-elan.c                        |    3 +-
 drivers/hid/hid-logitech-hidpp.c              |    5 +-
 drivers/hid/hid-magicmouse.c                  |    3 +-
 drivers/hid/hid-multitouch.c                  |    9 +-
 drivers/hid/hid-sony.c                        |    8 +-
 drivers/hid/wacom_wac.c                       |   15 +-
 drivers/input/input-mt.c                      |    2 +-
 drivers/input/misc/xen-kbdfront.c             |    2 +-
 drivers/input/mouse/elan_i2c_core.c           |    2 +-
 drivers/input/mouse/elantech.c                |    5 +-
 drivers/input/mouse/focaltech.c               |    3 +-
 drivers/input/mouse/sentelic.c                |    3 +-
 drivers/input/mouse/synaptics.c               |    3 +-
 drivers/input/rmi4/rmi_2d_sensor.c            |    6 +-
 drivers/input/touchscreen/atmel_mxt_ts.c      | 2269 ++++++++++++++---
 drivers/input/touchscreen/chipone_icn8505.c   |    4 +-
 drivers/input/touchscreen/cyttsp4_core.c      |    5 +-
 drivers/input/touchscreen/cyttsp_core.c       |    2 +-
 drivers/input/touchscreen/egalax_ts.c         |    3 +-
 drivers/input/touchscreen/hideep.c            |    7 +-
 drivers/input/touchscreen/ili210x.c           |    3 +-
 drivers/input/touchscreen/melfas_mip4.c       |    4 +-
 drivers/input/touchscreen/mms114.c            |    6 +-
 drivers/input/touchscreen/penmount.c          |    5 +-
 drivers/input/touchscreen/raspberrypi-ts.c    |    2 +-
 drivers/input/touchscreen/raydium_i2c_ts.c    |    4 +-
 drivers/input/touchscreen/sis_i2c.c           |    5 +-
 drivers/input/touchscreen/stmfts.c            |    2 +-
 drivers/input/touchscreen/surface3_spi.c      |    4 +-
 drivers/input/touchscreen/wacom_w8001.c       |    3 +-
 drivers/input/touchscreen/zforce_ts.c         |    6 +-
 include/dt-bindings/input/atmel_mxt_ts.h      |   22 +
 include/linux/input/mt.h                      |    5 +
 37 files changed, 2026 insertions(+), 425 deletions(-)
 create mode 100644 include/dt-bindings/input/atmel_mxt_ts.h

-- 
2.19.2

^ permalink raw reply	[flat|nested] 10+ messages in thread

* [PATCH v2 01/49] Input: switch to use return value of input_mt_report_slot_state
  2019-08-27  6:25 ` Jiada Wang
@ 2019-08-27  6:25   ` Jiada Wang
  -1 siblings, 0 replies; 10+ messages in thread
From: Jiada Wang @ 2019-08-27  6:25 UTC (permalink / raw)
  To: nick, dmitry.torokhov; +Cc: linux-input, linux-kernel, jiada_wang, george_davis

Currently several places are calling input_mt_report_slot_state()
like following:

input_mt_report_slot_state(dev, tool_type, active)
if (active) {
    ...
    < report events for active slot >
}

when 'active' is false, input_mt_report_slot_state() will always
return false, so instead of checking 'active', switch to use
return value of input_mt_report_slot_state()

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
---
 drivers/hid/hid-asus.c                      |  3 +--
 drivers/hid/hid-elan.c                      |  3 +--
 drivers/hid/hid-logitech-hidpp.c            |  5 ++---
 drivers/hid/hid-magicmouse.c                |  3 +--
 drivers/hid/hid-multitouch.c                |  3 +--
 drivers/hid/hid-sony.c                      |  8 ++++----
 drivers/hid/wacom_wac.c                     | 15 +++++----------
 drivers/input/mouse/elantech.c              |  5 ++---
 drivers/input/mouse/focaltech.c             |  3 +--
 drivers/input/mouse/sentelic.c              |  3 +--
 drivers/input/mouse/synaptics.c             |  3 +--
 drivers/input/rmi4/rmi_2d_sensor.c          |  6 ++----
 drivers/input/touchscreen/chipone_icn8505.c |  4 ++--
 drivers/input/touchscreen/egalax_ts.c       |  3 +--
 drivers/input/touchscreen/hideep.c          |  7 +++----
 drivers/input/touchscreen/ili210x.c         |  3 +--
 drivers/input/touchscreen/mms114.c          |  4 ++--
 drivers/input/touchscreen/penmount.c        |  5 ++---
 drivers/input/touchscreen/raydium_i2c_ts.c  |  4 ++--
 drivers/input/touchscreen/sis_i2c.c         |  5 ++---
 drivers/input/touchscreen/surface3_spi.c    |  4 ++--
 drivers/input/touchscreen/wacom_w8001.c     |  3 +--
 drivers/input/touchscreen/zforce_ts.c       |  6 ++----
 23 files changed, 42 insertions(+), 66 deletions(-)

diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index 8063b1d567b1..55f1004f0e58 100644
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -240,9 +240,8 @@ static int asus_report_input(struct asus_drvdata *drvdat, u8 *data, int size)
 						MT_TOOL_PALM : MT_TOOL_FINGER;
 
 		input_mt_slot(drvdat->input, i);
-		input_mt_report_slot_state(drvdat->input, toolType, down);
 
-		if (down) {
+		if (input_mt_report_slot_state(drvdat->input, toolType, down)) {
 			asus_report_contact_down(drvdat, toolType, contactData);
 			contactData += drvdat->tp->contact_size;
 		}
diff --git a/drivers/hid/hid-elan.c b/drivers/hid/hid-elan.c
index 45c4f888b7c4..84a317c6feb6 100644
--- a/drivers/hid/hid-elan.c
+++ b/drivers/hid/hid-elan.c
@@ -216,8 +216,7 @@ static void elan_report_mt_slot(struct elan_drvdata *drvdata, u8 *data,
 	bool active = !!data;
 
 	input_mt_slot(input, slot_num);
-	input_mt_report_slot_state(input, MT_TOOL_FINGER, active);
-	if (active) {
+	if (input_mt_report_slot_state(input, MT_TOOL_FINGER, active)) {
 		x = ((data[0] & 0xF0) << 4) | data[1];
 		y = drvdata->max_y -
 		    (((data[0] & 0x07) << 8) | data[2]);
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index 21268c9fa71a..a7b552a797f1 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -2295,9 +2295,8 @@ static void wtp_touch_event(struct hidpp_device *hidpp,
 	slot = input_mt_get_slot_by_key(hidpp->input, touch_report->finger_id);
 
 	input_mt_slot(hidpp->input, slot);
-	input_mt_report_slot_state(hidpp->input, MT_TOOL_FINGER,
-					touch_report->contact_status);
-	if (touch_report->contact_status) {
+	if (input_mt_report_slot_state(hidpp->input, MT_TOOL_FINGER,
+		touch_report->contact_status)) {
 		input_event(hidpp->input, EV_ABS, ABS_MT_POSITION_X,
 				touch_report->x);
 		input_event(hidpp->input, EV_ABS, ABS_MT_POSITION_Y,
diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c
index 34138667f8af..5f9f6426d7b8 100644
--- a/drivers/hid/hid-magicmouse.c
+++ b/drivers/hid/hid-magicmouse.c
@@ -282,10 +282,9 @@ static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tda
 		msc->ntouches++;
 
 	input_mt_slot(input, id);
-	input_mt_report_slot_state(input, MT_TOOL_FINGER, down);
 
 	/* Generate the input events for this touch. */
-	if (down) {
+	if (input_mt_report_slot_state(input, MT_TOOL_FINGER, down)) {
 		input_report_abs(input, ABS_MT_TOUCH_MAJOR, touch_major << 2);
 		input_report_abs(input, ABS_MT_TOUCH_MINOR, touch_minor << 2);
 		input_report_abs(input, ABS_MT_ORIENTATION, -orientation);
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index b603c14d043b..672396ed413e 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -1020,8 +1020,7 @@ static int mt_process_slot(struct mt_device *td, struct input_dev *input,
 	}
 
 	input_mt_slot(input, slotnum);
-	input_mt_report_slot_state(input, tool, active);
-	if (active) {
+	if (input_mt_report_slot_state(input, tool, active)) {
 		/* this finger is in proximity of the sensor */
 		int wide = (*slot->w > *slot->h);
 		int major = max(*slot->w, *slot->h);
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index 49dd2d905c7f..8ba21584a84a 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -1092,9 +1092,9 @@ static void dualshock4_parse_report(struct sony_sc *sc, u8 *rd, int size)
 
 			active = !(rd[offset] >> 7);
 			input_mt_slot(sc->touchpad, n);
-			input_mt_report_slot_state(sc->touchpad, MT_TOOL_FINGER, active);
 
-			if (active) {
+			if (input_mt_report_slot_state(sc->touchpad,
+				MT_TOOL_FINGER, active)) {
 				input_report_abs(sc->touchpad, ABS_MT_POSITION_X, x);
 				input_report_abs(sc->touchpad, ABS_MT_POSITION_Y, y);
 			}
@@ -1146,9 +1146,9 @@ static void nsg_mrxu_parse_report(struct sony_sc *sc, u8 *rd, int size)
 		y = ((rd[offset+1] & 0xF0) >> 4) | (rd[offset+2] << 4);
 
 		input_mt_slot(sc->touchpad, n);
-		input_mt_report_slot_state(sc->touchpad, MT_TOOL_FINGER, active & 0x03);
 
-		if (active & 0x03) {
+		if (input_mt_report_slot_state(sc->touchpad,
+			MT_TOOL_FINGER, active & 0x03)) {
 			contactx = rd[offset+3] & 0x0F;
 			contacty = rd[offset+3] >> 4;
 			input_report_abs(sc->touchpad, ABS_MT_TOUCH_MAJOR,
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 7a8ddc999a8e..c49b261753f0 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -1504,9 +1504,8 @@ static int wacom_24hdt_irq(struct wacom_wac *wacom)
 		if (slot < 0)
 			continue;
 		input_mt_slot(input, slot);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
 
-		if (touch) {
+		if (input_mt_report_slot_state(input, MT_TOOL_FINGER, touch)) {
 			int t_x = get_unaligned_le16(&data[offset + 2]);
 			int t_y = get_unaligned_le16(&data[offset + 4 + y_offset]);
 
@@ -1570,8 +1569,7 @@ static int wacom_mt_touch(struct wacom_wac *wacom)
 			continue;
 
 		input_mt_slot(input, slot);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
-		if (touch) {
+		if (input_mt_report_slot_state(input, MT_TOOL_FINGER, touch)) {
 			int x = get_unaligned_le16(&data[offset + x_offset + 7]);
 			int y = get_unaligned_le16(&data[offset + x_offset + 9]);
 			input_report_abs(input, ABS_MT_POSITION_X, x);
@@ -1599,8 +1597,7 @@ static int wacom_tpc_mt_touch(struct wacom_wac *wacom)
 		bool touch = p && report_touch_events(wacom);
 
 		input_mt_slot(input, i);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
-		if (touch) {
+		if (input_mt_report_slot_state(input, MT_TOOL_FINGER, touch)) {
 			int x = le16_to_cpup((__le16 *)&data[i * 2 + 2]) & 0x7fff;
 			int y = le16_to_cpup((__le16 *)&data[i * 2 + 6]) & 0x7fff;
 
@@ -2842,8 +2839,7 @@ static int wacom_bpt_touch(struct wacom_wac *wacom)
 			   && (data[offset + 3] & 0x80);
 
 		input_mt_slot(input, i);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
-		if (touch) {
+		if (input_mt_report_slot_state(input, MT_TOOL_FINGER, touch)) {
 			int x = get_unaligned_be16(&data[offset + 3]) & 0x7ff;
 			int y = get_unaligned_be16(&data[offset + 5]) & 0x7ff;
 			if (features->quirks & WACOM_QUIRK_BBTOUCH_LOWRES) {
@@ -2879,9 +2875,8 @@ static void wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data)
 	touch = touch && report_touch_events(wacom);
 
 	input_mt_slot(input, slot);
-	input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
 
-	if (touch) {
+	if (input_mt_report_slot_state(input, MT_TOOL_FINGER, touch)) {
 		int x = (data[2] << 4) | (data[4] >> 4);
 		int y = (data[3] << 4) | (data[4] & 0x0f);
 		int width, height;
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 2d8434b7b623..da06490bb914 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -343,8 +343,7 @@ static void elantech_set_slot(struct input_dev *dev, int slot, bool active,
 			      unsigned int x, unsigned int y)
 {
 	input_mt_slot(dev, slot);
-	input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
-	if (active) {
+	if (input_mt_report_slot_state(dev, MT_TOOL_FINGER, active)) {
 		input_report_abs(dev, ABS_MT_POSITION_X, x);
 		input_report_abs(dev, ABS_MT_POSITION_Y, y);
 	}
@@ -608,7 +607,7 @@ static void process_packet_status_v4(struct psmouse *psmouse)
 	for (i = 0; i < ETP_MAX_FINGERS; i++) {
 		if ((fingers & (1 << i)) == 0) {
 			input_mt_slot(dev, i);
-			input_mt_report_slot_state(dev, MT_TOOL_FINGER, false);
+			input_mt_report_slot_inactive(dev);
 		}
 	}
 
diff --git a/drivers/input/mouse/focaltech.c b/drivers/input/mouse/focaltech.c
index 6fd5fff0cbff..fd627fab16c0 100644
--- a/drivers/input/mouse/focaltech.c
+++ b/drivers/input/mouse/focaltech.c
@@ -124,8 +124,7 @@ static void focaltech_report_state(struct psmouse *psmouse)
 		bool active = finger->active && finger->valid;
 
 		input_mt_slot(dev, i);
-		input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
-		if (active) {
+		if (input_mt_report_slot_state(dev, MT_TOOL_FINGER, active)) {
 			unsigned int clamped_x, clamped_y;
 			/*
 			 * The touchpad might report invalid data, so we clamp
diff --git a/drivers/input/mouse/sentelic.c b/drivers/input/mouse/sentelic.c
index e99d9bf1a267..1a8a2e19c514 100644
--- a/drivers/input/mouse/sentelic.c
+++ b/drivers/input/mouse/sentelic.c
@@ -683,8 +683,7 @@ static void fsp_set_slot(struct input_dev *dev, int slot, bool active,
 			 unsigned int x, unsigned int y)
 {
 	input_mt_slot(dev, slot);
-	input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
-	if (active) {
+	if (input_mt_report_slot_state(dev, MT_TOOL_FINGER, active)) {
 		input_report_abs(dev, ABS_MT_POSITION_X, x);
 		input_report_abs(dev, ABS_MT_POSITION_Y, y);
 	}
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index b1956ed4c0dd..6969b37ba731 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -882,8 +882,7 @@ static void synaptics_report_semi_mt_slot(struct input_dev *dev, int slot,
 					  bool active, int x, int y)
 {
 	input_mt_slot(dev, slot);
-	input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
-	if (active) {
+	if (input_mt_report_slot_state(dev, MT_TOOL_FINGER, active)) {
 		input_report_abs(dev, ABS_MT_POSITION_X, x);
 		input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(y));
 	}
diff --git a/drivers/input/rmi4/rmi_2d_sensor.c b/drivers/input/rmi4/rmi_2d_sensor.c
index ea549efe4bc4..c0f7be7c3737 100644
--- a/drivers/input/rmi4/rmi_2d_sensor.c
+++ b/drivers/input/rmi4/rmi_2d_sensor.c
@@ -76,10 +76,8 @@ void rmi_2d_sensor_abs_report(struct rmi_2d_sensor *sensor,
 	else
 		input_mt_slot(input, slot);
 
-	input_mt_report_slot_state(input, obj->mt_tool,
-				   obj->type != RMI_2D_OBJECT_NONE);
-
-	if (obj->type != RMI_2D_OBJECT_NONE) {
+	if (input_mt_report_slot_state(input, obj->mt_tool,
+		obj->type != RMI_2D_OBJECT_NONE)) {
 		obj->x = sensor->tracking_pos[slot].x;
 		obj->y = sensor->tracking_pos[slot].y;
 
diff --git a/drivers/input/touchscreen/chipone_icn8505.c b/drivers/input/touchscreen/chipone_icn8505.c
index c768186ce856..9880101cd14b 100644
--- a/drivers/input/touchscreen/chipone_icn8505.c
+++ b/drivers/input/touchscreen/chipone_icn8505.c
@@ -344,8 +344,8 @@ static irqreturn_t icn8505_irq(int irq, void *dev_id)
 		bool act = icn8505_touch_active(touch->event);
 
 		input_mt_slot(icn8505->input, touch->slot);
-		input_mt_report_slot_state(icn8505->input, MT_TOOL_FINGER, act);
-		if (!act)
+		if (!input_mt_report_slot_state(icn8505->input,
+			MT_TOOL_FINGER, act))
 			continue;
 
 		touchscreen_report_pos(icn8505->input, &icn8505->prop,
diff --git a/drivers/input/touchscreen/egalax_ts.c b/drivers/input/touchscreen/egalax_ts.c
index 83ac8c128192..c0774c29e496 100644
--- a/drivers/input/touchscreen/egalax_ts.c
+++ b/drivers/input/touchscreen/egalax_ts.c
@@ -99,12 +99,11 @@ static irqreturn_t egalax_ts_interrupt(int irq, void *dev_id)
 	}
 
 	input_mt_slot(input_dev, id);
-	input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, down);
 
 	dev_dbg(&client->dev, "%s id:%d x:%d y:%d z:%d",
 		down ? "down" : "up", id, x, y, z);
 
-	if (down) {
+	if (input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, down)) {
 		input_report_abs(input_dev, ABS_MT_POSITION_X, x);
 		input_report_abs(input_dev, ABS_MT_POSITION_Y, y);
 		input_report_abs(input_dev, ABS_MT_PRESSURE, z);
diff --git a/drivers/input/touchscreen/hideep.c b/drivers/input/touchscreen/hideep.c
index 84fbbf415c43..6f4c96f45a02 100644
--- a/drivers/input/touchscreen/hideep.c
+++ b/drivers/input/touchscreen/hideep.c
@@ -693,10 +693,9 @@ static void hideep_report_slot(struct input_dev *input,
 			       const struct hideep_event *event)
 {
 	input_mt_slot(input, event->index & 0x0f);
-	input_mt_report_slot_state(input,
-				   __GET_MT_TOOL_TYPE(event->type),
-				   !(event->flag & HIDEEP_MT_RELEASED));
-	if (!(event->flag & HIDEEP_MT_RELEASED)) {
+	if (input_mt_report_slot_state(input,
+		__GET_MT_TOOL_TYPE(event->type),
+		!(event->flag & HIDEEP_MT_RELEASED))) {
 		input_report_abs(input, ABS_MT_POSITION_X,
 				 le16_to_cpup(&event->x));
 		input_report_abs(input, ABS_MT_POSITION_Y,
diff --git a/drivers/input/touchscreen/ili210x.c b/drivers/input/touchscreen/ili210x.c
index e9006407c9bc..2a5698e129d8 100644
--- a/drivers/input/touchscreen/ili210x.c
+++ b/drivers/input/touchscreen/ili210x.c
@@ -154,8 +154,7 @@ static bool ili210x_report_events(struct ili210x *priv, u8 *touchdata)
 		}
 
 		input_mt_slot(input, i);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
-		if (!touch)
+		if (!input_mt_report_slot_state(input, MT_TOOL_FINGER, touch))
 			continue;
 		touchscreen_report_pos(input, &priv->prop, x, y,
 				       true);
diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c
index a5ab774da4cc..ea46da04e517 100644
--- a/drivers/input/touchscreen/mms114.c
+++ b/drivers/input/touchscreen/mms114.c
@@ -178,9 +178,9 @@ static void mms114_process_mt(struct mms114_data *data, struct mms114_touch *tou
 		x, y, touch->width, touch->strength);
 
 	input_mt_slot(input_dev, id);
-	input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, touch->pressed);
 
-	if (touch->pressed) {
+	if (input_mt_report_slot_state(input_dev,
+		MT_TOOL_FINGER, touch->pressed)) {
 		touchscreen_report_pos(input_dev, &data->props, x, y, true);
 		input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, touch->width);
 		input_report_abs(input_dev, ABS_MT_PRESSURE, touch->strength);
diff --git a/drivers/input/touchscreen/penmount.c b/drivers/input/touchscreen/penmount.c
index 12abb3b36128..2721a608d7fc 100644
--- a/drivers/input/touchscreen/penmount.c
+++ b/drivers/input/touchscreen/penmount.c
@@ -69,9 +69,8 @@ static void pm_mtevent(struct pm *pm, struct input_dev *input)
 
 	for (i = 0; i < pm->maxcontacts; ++i) {
 		input_mt_slot(input, i);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER,
-				pm->slots[i].active);
-		if (pm->slots[i].active) {
+		if (input_mt_report_slot_state(input, MT_TOOL_FINGER,
+			pm->slots[i].active)) {
 			input_event(input, EV_ABS, ABS_MT_POSITION_X, pm->slots[i].x);
 			input_event(input, EV_ABS, ABS_MT_POSITION_Y, pm->slots[i].y);
 		}
diff --git a/drivers/input/touchscreen/raydium_i2c_ts.c b/drivers/input/touchscreen/raydium_i2c_ts.c
index 6ed9f22e6401..d9f253a82eba 100644
--- a/drivers/input/touchscreen/raydium_i2c_ts.c
+++ b/drivers/input/touchscreen/raydium_i2c_ts.c
@@ -801,9 +801,9 @@ static void raydium_mt_event(struct raydium_data *ts)
 		u8 wx, wy;
 
 		input_mt_slot(ts->input, i);
-		input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, state);
 
-		if (!state)
+		if (!input_mt_report_slot_state(ts->input,
+			MT_TOOL_FINGER, state))
 			continue;
 
 		input_report_abs(ts->input, ABS_MT_POSITION_X,
diff --git a/drivers/input/touchscreen/sis_i2c.c b/drivers/input/touchscreen/sis_i2c.c
index 6274555f1673..55857328bbc7 100644
--- a/drivers/input/touchscreen/sis_i2c.c
+++ b/drivers/input/touchscreen/sis_i2c.c
@@ -189,10 +189,9 @@ static int sis_ts_report_contact(struct sis_ts_data *ts, const u8 *data, u8 id)
 		return -ENOENT;
 
 	input_mt_slot(input, slot);
-	input_mt_report_slot_state(input, MT_TOOL_FINGER,
-				   status == SIS_STATUS_DOWN);
 
-	if (status == SIS_STATUS_DOWN) {
+	if (input_mt_report_slot_state(input, MT_TOOL_FINGER,
+		status == SIS_STATUS_DOWN)) {
 		pressure = height = width = 1;
 		if (id != SIS_ALL_IN_ONE_PACKAGE) {
 			if (SIS_PKT_HAS_AREA(id)) {
diff --git a/drivers/input/touchscreen/surface3_spi.c b/drivers/input/touchscreen/surface3_spi.c
index ce4828b1415a..6981790dd541 100644
--- a/drivers/input/touchscreen/surface3_spi.c
+++ b/drivers/input/touchscreen/surface3_spi.c
@@ -75,8 +75,8 @@ static void surface3_spi_report_touch(struct surface3_ts_data *ts_data,
 		return;
 
 	input_mt_slot(ts_data->input_dev, slot);
-	input_mt_report_slot_state(ts_data->input_dev, MT_TOOL_FINGER, st);
-	if (st) {
+	if (input_mt_report_slot_state(ts_data->input_dev,
+		MT_TOOL_FINGER, st)) {
 		input_report_abs(ts_data->input_dev,
 				 ABS_MT_POSITION_X,
 				 get_unaligned_le16(&finger->x));
diff --git a/drivers/input/touchscreen/wacom_w8001.c b/drivers/input/touchscreen/wacom_w8001.c
index 3715d1eace92..cf2f233cdbfb 100644
--- a/drivers/input/touchscreen/wacom_w8001.c
+++ b/drivers/input/touchscreen/wacom_w8001.c
@@ -155,8 +155,7 @@ static void parse_multi_touch(struct w8001 *w8001)
 		bool touch = data[0] & (1 << i);
 
 		input_mt_slot(dev, i);
-		input_mt_report_slot_state(dev, MT_TOOL_FINGER, touch);
-		if (touch) {
+		if (input_mt_report_slot_state(dev, MT_TOOL_FINGER, touch)) {
 			x = (data[6 * i + 1] << 7) | data[6 * i + 2];
 			y = (data[6 * i + 3] << 7) | data[6 * i + 4];
 			/* data[5,6] and [11,12] is finger capacity */
diff --git a/drivers/input/touchscreen/zforce_ts.c b/drivers/input/touchscreen/zforce_ts.c
index 5230519b0f74..37ae4599c0db 100644
--- a/drivers/input/touchscreen/zforce_ts.c
+++ b/drivers/input/touchscreen/zforce_ts.c
@@ -386,10 +386,8 @@ static int zforce_touch_event(struct zforce_ts *ts, u8 *payload)
 		/* the zforce id starts with "1", so needs to be decreased */
 		input_mt_slot(ts->input, point.id - 1);
 
-		input_mt_report_slot_state(ts->input, MT_TOOL_FINGER,
-						point.state != STATE_UP);
-
-		if (point.state != STATE_UP) {
+		if (input_mt_report_slot_state(ts->input, MT_TOOL_FINGER,
+			point.state != STATE_UP)) {
 			input_report_abs(ts->input, ABS_MT_POSITION_X,
 					 point.coord_x);
 			input_report_abs(ts->input, ABS_MT_POSITION_Y,
-- 
2.19.2


^ permalink raw reply related	[flat|nested] 10+ messages in thread

* [PATCH v2 01/49] Input: switch to use return value of input_mt_report_slot_state
@ 2019-08-27  6:25   ` Jiada Wang
  0 siblings, 0 replies; 10+ messages in thread
From: Jiada Wang @ 2019-08-27  6:25 UTC (permalink / raw)
  To: nick, dmitry.torokhov; +Cc: linux-input, linux-kernel, jiada_wang, george_davis

Currently several places are calling input_mt_report_slot_state()
like following:

input_mt_report_slot_state(dev, tool_type, active)
if (active) {
    ...
    < report events for active slot >
}

when 'active' is false, input_mt_report_slot_state() will always
return false, so instead of checking 'active', switch to use
return value of input_mt_report_slot_state()

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
---
 drivers/hid/hid-asus.c                      |  3 +--
 drivers/hid/hid-elan.c                      |  3 +--
 drivers/hid/hid-logitech-hidpp.c            |  5 ++---
 drivers/hid/hid-magicmouse.c                |  3 +--
 drivers/hid/hid-multitouch.c                |  3 +--
 drivers/hid/hid-sony.c                      |  8 ++++----
 drivers/hid/wacom_wac.c                     | 15 +++++----------
 drivers/input/mouse/elantech.c              |  5 ++---
 drivers/input/mouse/focaltech.c             |  3 +--
 drivers/input/mouse/sentelic.c              |  3 +--
 drivers/input/mouse/synaptics.c             |  3 +--
 drivers/input/rmi4/rmi_2d_sensor.c          |  6 ++----
 drivers/input/touchscreen/chipone_icn8505.c |  4 ++--
 drivers/input/touchscreen/egalax_ts.c       |  3 +--
 drivers/input/touchscreen/hideep.c          |  7 +++----
 drivers/input/touchscreen/ili210x.c         |  3 +--
 drivers/input/touchscreen/mms114.c          |  4 ++--
 drivers/input/touchscreen/penmount.c        |  5 ++---
 drivers/input/touchscreen/raydium_i2c_ts.c  |  4 ++--
 drivers/input/touchscreen/sis_i2c.c         |  5 ++---
 drivers/input/touchscreen/surface3_spi.c    |  4 ++--
 drivers/input/touchscreen/wacom_w8001.c     |  3 +--
 drivers/input/touchscreen/zforce_ts.c       |  6 ++----
 23 files changed, 42 insertions(+), 66 deletions(-)

diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index 8063b1d567b1..55f1004f0e58 100644
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -240,9 +240,8 @@ static int asus_report_input(struct asus_drvdata *drvdat, u8 *data, int size)
 						MT_TOOL_PALM : MT_TOOL_FINGER;
 
 		input_mt_slot(drvdat->input, i);
-		input_mt_report_slot_state(drvdat->input, toolType, down);
 
-		if (down) {
+		if (input_mt_report_slot_state(drvdat->input, toolType, down)) {
 			asus_report_contact_down(drvdat, toolType, contactData);
 			contactData += drvdat->tp->contact_size;
 		}
diff --git a/drivers/hid/hid-elan.c b/drivers/hid/hid-elan.c
index 45c4f888b7c4..84a317c6feb6 100644
--- a/drivers/hid/hid-elan.c
+++ b/drivers/hid/hid-elan.c
@@ -216,8 +216,7 @@ static void elan_report_mt_slot(struct elan_drvdata *drvdata, u8 *data,
 	bool active = !!data;
 
 	input_mt_slot(input, slot_num);
-	input_mt_report_slot_state(input, MT_TOOL_FINGER, active);
-	if (active) {
+	if (input_mt_report_slot_state(input, MT_TOOL_FINGER, active)) {
 		x = ((data[0] & 0xF0) << 4) | data[1];
 		y = drvdata->max_y -
 		    (((data[0] & 0x07) << 8) | data[2]);
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index 21268c9fa71a..a7b552a797f1 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -2295,9 +2295,8 @@ static void wtp_touch_event(struct hidpp_device *hidpp,
 	slot = input_mt_get_slot_by_key(hidpp->input, touch_report->finger_id);
 
 	input_mt_slot(hidpp->input, slot);
-	input_mt_report_slot_state(hidpp->input, MT_TOOL_FINGER,
-					touch_report->contact_status);
-	if (touch_report->contact_status) {
+	if (input_mt_report_slot_state(hidpp->input, MT_TOOL_FINGER,
+		touch_report->contact_status)) {
 		input_event(hidpp->input, EV_ABS, ABS_MT_POSITION_X,
 				touch_report->x);
 		input_event(hidpp->input, EV_ABS, ABS_MT_POSITION_Y,
diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c
index 34138667f8af..5f9f6426d7b8 100644
--- a/drivers/hid/hid-magicmouse.c
+++ b/drivers/hid/hid-magicmouse.c
@@ -282,10 +282,9 @@ static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tda
 		msc->ntouches++;
 
 	input_mt_slot(input, id);
-	input_mt_report_slot_state(input, MT_TOOL_FINGER, down);
 
 	/* Generate the input events for this touch. */
-	if (down) {
+	if (input_mt_report_slot_state(input, MT_TOOL_FINGER, down)) {
 		input_report_abs(input, ABS_MT_TOUCH_MAJOR, touch_major << 2);
 		input_report_abs(input, ABS_MT_TOUCH_MINOR, touch_minor << 2);
 		input_report_abs(input, ABS_MT_ORIENTATION, -orientation);
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index b603c14d043b..672396ed413e 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -1020,8 +1020,7 @@ static int mt_process_slot(struct mt_device *td, struct input_dev *input,
 	}
 
 	input_mt_slot(input, slotnum);
-	input_mt_report_slot_state(input, tool, active);
-	if (active) {
+	if (input_mt_report_slot_state(input, tool, active)) {
 		/* this finger is in proximity of the sensor */
 		int wide = (*slot->w > *slot->h);
 		int major = max(*slot->w, *slot->h);
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index 49dd2d905c7f..8ba21584a84a 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -1092,9 +1092,9 @@ static void dualshock4_parse_report(struct sony_sc *sc, u8 *rd, int size)
 
 			active = !(rd[offset] >> 7);
 			input_mt_slot(sc->touchpad, n);
-			input_mt_report_slot_state(sc->touchpad, MT_TOOL_FINGER, active);
 
-			if (active) {
+			if (input_mt_report_slot_state(sc->touchpad,
+				MT_TOOL_FINGER, active)) {
 				input_report_abs(sc->touchpad, ABS_MT_POSITION_X, x);
 				input_report_abs(sc->touchpad, ABS_MT_POSITION_Y, y);
 			}
@@ -1146,9 +1146,9 @@ static void nsg_mrxu_parse_report(struct sony_sc *sc, u8 *rd, int size)
 		y = ((rd[offset+1] & 0xF0) >> 4) | (rd[offset+2] << 4);
 
 		input_mt_slot(sc->touchpad, n);
-		input_mt_report_slot_state(sc->touchpad, MT_TOOL_FINGER, active & 0x03);
 
-		if (active & 0x03) {
+		if (input_mt_report_slot_state(sc->touchpad,
+			MT_TOOL_FINGER, active & 0x03)) {
 			contactx = rd[offset+3] & 0x0F;
 			contacty = rd[offset+3] >> 4;
 			input_report_abs(sc->touchpad, ABS_MT_TOUCH_MAJOR,
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 7a8ddc999a8e..c49b261753f0 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -1504,9 +1504,8 @@ static int wacom_24hdt_irq(struct wacom_wac *wacom)
 		if (slot < 0)
 			continue;
 		input_mt_slot(input, slot);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
 
-		if (touch) {
+		if (input_mt_report_slot_state(input, MT_TOOL_FINGER, touch)) {
 			int t_x = get_unaligned_le16(&data[offset + 2]);
 			int t_y = get_unaligned_le16(&data[offset + 4 + y_offset]);
 
@@ -1570,8 +1569,7 @@ static int wacom_mt_touch(struct wacom_wac *wacom)
 			continue;
 
 		input_mt_slot(input, slot);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
-		if (touch) {
+		if (input_mt_report_slot_state(input, MT_TOOL_FINGER, touch)) {
 			int x = get_unaligned_le16(&data[offset + x_offset + 7]);
 			int y = get_unaligned_le16(&data[offset + x_offset + 9]);
 			input_report_abs(input, ABS_MT_POSITION_X, x);
@@ -1599,8 +1597,7 @@ static int wacom_tpc_mt_touch(struct wacom_wac *wacom)
 		bool touch = p && report_touch_events(wacom);
 
 		input_mt_slot(input, i);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
-		if (touch) {
+		if (input_mt_report_slot_state(input, MT_TOOL_FINGER, touch)) {
 			int x = le16_to_cpup((__le16 *)&data[i * 2 + 2]) & 0x7fff;
 			int y = le16_to_cpup((__le16 *)&data[i * 2 + 6]) & 0x7fff;
 
@@ -2842,8 +2839,7 @@ static int wacom_bpt_touch(struct wacom_wac *wacom)
 			   && (data[offset + 3] & 0x80);
 
 		input_mt_slot(input, i);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
-		if (touch) {
+		if (input_mt_report_slot_state(input, MT_TOOL_FINGER, touch)) {
 			int x = get_unaligned_be16(&data[offset + 3]) & 0x7ff;
 			int y = get_unaligned_be16(&data[offset + 5]) & 0x7ff;
 			if (features->quirks & WACOM_QUIRK_BBTOUCH_LOWRES) {
@@ -2879,9 +2875,8 @@ static void wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data)
 	touch = touch && report_touch_events(wacom);
 
 	input_mt_slot(input, slot);
-	input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
 
-	if (touch) {
+	if (input_mt_report_slot_state(input, MT_TOOL_FINGER, touch)) {
 		int x = (data[2] << 4) | (data[4] >> 4);
 		int y = (data[3] << 4) | (data[4] & 0x0f);
 		int width, height;
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 2d8434b7b623..da06490bb914 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -343,8 +343,7 @@ static void elantech_set_slot(struct input_dev *dev, int slot, bool active,
 			      unsigned int x, unsigned int y)
 {
 	input_mt_slot(dev, slot);
-	input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
-	if (active) {
+	if (input_mt_report_slot_state(dev, MT_TOOL_FINGER, active)) {
 		input_report_abs(dev, ABS_MT_POSITION_X, x);
 		input_report_abs(dev, ABS_MT_POSITION_Y, y);
 	}
@@ -608,7 +607,7 @@ static void process_packet_status_v4(struct psmouse *psmouse)
 	for (i = 0; i < ETP_MAX_FINGERS; i++) {
 		if ((fingers & (1 << i)) == 0) {
 			input_mt_slot(dev, i);
-			input_mt_report_slot_state(dev, MT_TOOL_FINGER, false);
+			input_mt_report_slot_inactive(dev);
 		}
 	}
 
diff --git a/drivers/input/mouse/focaltech.c b/drivers/input/mouse/focaltech.c
index 6fd5fff0cbff..fd627fab16c0 100644
--- a/drivers/input/mouse/focaltech.c
+++ b/drivers/input/mouse/focaltech.c
@@ -124,8 +124,7 @@ static void focaltech_report_state(struct psmouse *psmouse)
 		bool active = finger->active && finger->valid;
 
 		input_mt_slot(dev, i);
-		input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
-		if (active) {
+		if (input_mt_report_slot_state(dev, MT_TOOL_FINGER, active)) {
 			unsigned int clamped_x, clamped_y;
 			/*
 			 * The touchpad might report invalid data, so we clamp
diff --git a/drivers/input/mouse/sentelic.c b/drivers/input/mouse/sentelic.c
index e99d9bf1a267..1a8a2e19c514 100644
--- a/drivers/input/mouse/sentelic.c
+++ b/drivers/input/mouse/sentelic.c
@@ -683,8 +683,7 @@ static void fsp_set_slot(struct input_dev *dev, int slot, bool active,
 			 unsigned int x, unsigned int y)
 {
 	input_mt_slot(dev, slot);
-	input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
-	if (active) {
+	if (input_mt_report_slot_state(dev, MT_TOOL_FINGER, active)) {
 		input_report_abs(dev, ABS_MT_POSITION_X, x);
 		input_report_abs(dev, ABS_MT_POSITION_Y, y);
 	}
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index b1956ed4c0dd..6969b37ba731 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -882,8 +882,7 @@ static void synaptics_report_semi_mt_slot(struct input_dev *dev, int slot,
 					  bool active, int x, int y)
 {
 	input_mt_slot(dev, slot);
-	input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
-	if (active) {
+	if (input_mt_report_slot_state(dev, MT_TOOL_FINGER, active)) {
 		input_report_abs(dev, ABS_MT_POSITION_X, x);
 		input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(y));
 	}
diff --git a/drivers/input/rmi4/rmi_2d_sensor.c b/drivers/input/rmi4/rmi_2d_sensor.c
index ea549efe4bc4..c0f7be7c3737 100644
--- a/drivers/input/rmi4/rmi_2d_sensor.c
+++ b/drivers/input/rmi4/rmi_2d_sensor.c
@@ -76,10 +76,8 @@ void rmi_2d_sensor_abs_report(struct rmi_2d_sensor *sensor,
 	else
 		input_mt_slot(input, slot);
 
-	input_mt_report_slot_state(input, obj->mt_tool,
-				   obj->type != RMI_2D_OBJECT_NONE);
-
-	if (obj->type != RMI_2D_OBJECT_NONE) {
+	if (input_mt_report_slot_state(input, obj->mt_tool,
+		obj->type != RMI_2D_OBJECT_NONE)) {
 		obj->x = sensor->tracking_pos[slot].x;
 		obj->y = sensor->tracking_pos[slot].y;
 
diff --git a/drivers/input/touchscreen/chipone_icn8505.c b/drivers/input/touchscreen/chipone_icn8505.c
index c768186ce856..9880101cd14b 100644
--- a/drivers/input/touchscreen/chipone_icn8505.c
+++ b/drivers/input/touchscreen/chipone_icn8505.c
@@ -344,8 +344,8 @@ static irqreturn_t icn8505_irq(int irq, void *dev_id)
 		bool act = icn8505_touch_active(touch->event);
 
 		input_mt_slot(icn8505->input, touch->slot);
-		input_mt_report_slot_state(icn8505->input, MT_TOOL_FINGER, act);
-		if (!act)
+		if (!input_mt_report_slot_state(icn8505->input,
+			MT_TOOL_FINGER, act))
 			continue;
 
 		touchscreen_report_pos(icn8505->input, &icn8505->prop,
diff --git a/drivers/input/touchscreen/egalax_ts.c b/drivers/input/touchscreen/egalax_ts.c
index 83ac8c128192..c0774c29e496 100644
--- a/drivers/input/touchscreen/egalax_ts.c
+++ b/drivers/input/touchscreen/egalax_ts.c
@@ -99,12 +99,11 @@ static irqreturn_t egalax_ts_interrupt(int irq, void *dev_id)
 	}
 
 	input_mt_slot(input_dev, id);
-	input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, down);
 
 	dev_dbg(&client->dev, "%s id:%d x:%d y:%d z:%d",
 		down ? "down" : "up", id, x, y, z);
 
-	if (down) {
+	if (input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, down)) {
 		input_report_abs(input_dev, ABS_MT_POSITION_X, x);
 		input_report_abs(input_dev, ABS_MT_POSITION_Y, y);
 		input_report_abs(input_dev, ABS_MT_PRESSURE, z);
diff --git a/drivers/input/touchscreen/hideep.c b/drivers/input/touchscreen/hideep.c
index 84fbbf415c43..6f4c96f45a02 100644
--- a/drivers/input/touchscreen/hideep.c
+++ b/drivers/input/touchscreen/hideep.c
@@ -693,10 +693,9 @@ static void hideep_report_slot(struct input_dev *input,
 			       const struct hideep_event *event)
 {
 	input_mt_slot(input, event->index & 0x0f);
-	input_mt_report_slot_state(input,
-				   __GET_MT_TOOL_TYPE(event->type),
-				   !(event->flag & HIDEEP_MT_RELEASED));
-	if (!(event->flag & HIDEEP_MT_RELEASED)) {
+	if (input_mt_report_slot_state(input,
+		__GET_MT_TOOL_TYPE(event->type),
+		!(event->flag & HIDEEP_MT_RELEASED))) {
 		input_report_abs(input, ABS_MT_POSITION_X,
 				 le16_to_cpup(&event->x));
 		input_report_abs(input, ABS_MT_POSITION_Y,
diff --git a/drivers/input/touchscreen/ili210x.c b/drivers/input/touchscreen/ili210x.c
index e9006407c9bc..2a5698e129d8 100644
--- a/drivers/input/touchscreen/ili210x.c
+++ b/drivers/input/touchscreen/ili210x.c
@@ -154,8 +154,7 @@ static bool ili210x_report_events(struct ili210x *priv, u8 *touchdata)
 		}
 
 		input_mt_slot(input, i);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
-		if (!touch)
+		if (!input_mt_report_slot_state(input, MT_TOOL_FINGER, touch))
 			continue;
 		touchscreen_report_pos(input, &priv->prop, x, y,
 				       true);
diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c
index a5ab774da4cc..ea46da04e517 100644
--- a/drivers/input/touchscreen/mms114.c
+++ b/drivers/input/touchscreen/mms114.c
@@ -178,9 +178,9 @@ static void mms114_process_mt(struct mms114_data *data, struct mms114_touch *tou
 		x, y, touch->width, touch->strength);
 
 	input_mt_slot(input_dev, id);
-	input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, touch->pressed);
 
-	if (touch->pressed) {
+	if (input_mt_report_slot_state(input_dev,
+		MT_TOOL_FINGER, touch->pressed)) {
 		touchscreen_report_pos(input_dev, &data->props, x, y, true);
 		input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, touch->width);
 		input_report_abs(input_dev, ABS_MT_PRESSURE, touch->strength);
diff --git a/drivers/input/touchscreen/penmount.c b/drivers/input/touchscreen/penmount.c
index 12abb3b36128..2721a608d7fc 100644
--- a/drivers/input/touchscreen/penmount.c
+++ b/drivers/input/touchscreen/penmount.c
@@ -69,9 +69,8 @@ static void pm_mtevent(struct pm *pm, struct input_dev *input)
 
 	for (i = 0; i < pm->maxcontacts; ++i) {
 		input_mt_slot(input, i);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER,
-				pm->slots[i].active);
-		if (pm->slots[i].active) {
+		if (input_mt_report_slot_state(input, MT_TOOL_FINGER,
+			pm->slots[i].active)) {
 			input_event(input, EV_ABS, ABS_MT_POSITION_X, pm->slots[i].x);
 			input_event(input, EV_ABS, ABS_MT_POSITION_Y, pm->slots[i].y);
 		}
diff --git a/drivers/input/touchscreen/raydium_i2c_ts.c b/drivers/input/touchscreen/raydium_i2c_ts.c
index 6ed9f22e6401..d9f253a82eba 100644
--- a/drivers/input/touchscreen/raydium_i2c_ts.c
+++ b/drivers/input/touchscreen/raydium_i2c_ts.c
@@ -801,9 +801,9 @@ static void raydium_mt_event(struct raydium_data *ts)
 		u8 wx, wy;
 
 		input_mt_slot(ts->input, i);
-		input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, state);
 
-		if (!state)
+		if (!input_mt_report_slot_state(ts->input,
+			MT_TOOL_FINGER, state))
 			continue;
 
 		input_report_abs(ts->input, ABS_MT_POSITION_X,
diff --git a/drivers/input/touchscreen/sis_i2c.c b/drivers/input/touchscreen/sis_i2c.c
index 6274555f1673..55857328bbc7 100644
--- a/drivers/input/touchscreen/sis_i2c.c
+++ b/drivers/input/touchscreen/sis_i2c.c
@@ -189,10 +189,9 @@ static int sis_ts_report_contact(struct sis_ts_data *ts, const u8 *data, u8 id)
 		return -ENOENT;
 
 	input_mt_slot(input, slot);
-	input_mt_report_slot_state(input, MT_TOOL_FINGER,
-				   status == SIS_STATUS_DOWN);
 
-	if (status == SIS_STATUS_DOWN) {
+	if (input_mt_report_slot_state(input, MT_TOOL_FINGER,
+		status == SIS_STATUS_DOWN)) {
 		pressure = height = width = 1;
 		if (id != SIS_ALL_IN_ONE_PACKAGE) {
 			if (SIS_PKT_HAS_AREA(id)) {
diff --git a/drivers/input/touchscreen/surface3_spi.c b/drivers/input/touchscreen/surface3_spi.c
index ce4828b1415a..6981790dd541 100644
--- a/drivers/input/touchscreen/surface3_spi.c
+++ b/drivers/input/touchscreen/surface3_spi.c
@@ -75,8 +75,8 @@ static void surface3_spi_report_touch(struct surface3_ts_data *ts_data,
 		return;
 
 	input_mt_slot(ts_data->input_dev, slot);
-	input_mt_report_slot_state(ts_data->input_dev, MT_TOOL_FINGER, st);
-	if (st) {
+	if (input_mt_report_slot_state(ts_data->input_dev,
+		MT_TOOL_FINGER, st)) {
 		input_report_abs(ts_data->input_dev,
 				 ABS_MT_POSITION_X,
 				 get_unaligned_le16(&finger->x));
diff --git a/drivers/input/touchscreen/wacom_w8001.c b/drivers/input/touchscreen/wacom_w8001.c
index 3715d1eace92..cf2f233cdbfb 100644
--- a/drivers/input/touchscreen/wacom_w8001.c
+++ b/drivers/input/touchscreen/wacom_w8001.c
@@ -155,8 +155,7 @@ static void parse_multi_touch(struct w8001 *w8001)
 		bool touch = data[0] & (1 << i);
 
 		input_mt_slot(dev, i);
-		input_mt_report_slot_state(dev, MT_TOOL_FINGER, touch);
-		if (touch) {
+		if (input_mt_report_slot_state(dev, MT_TOOL_FINGER, touch)) {
 			x = (data[6 * i + 1] << 7) | data[6 * i + 2];
 			y = (data[6 * i + 3] << 7) | data[6 * i + 4];
 			/* data[5,6] and [11,12] is finger capacity */
diff --git a/drivers/input/touchscreen/zforce_ts.c b/drivers/input/touchscreen/zforce_ts.c
index 5230519b0f74..37ae4599c0db 100644
--- a/drivers/input/touchscreen/zforce_ts.c
+++ b/drivers/input/touchscreen/zforce_ts.c
@@ -386,10 +386,8 @@ static int zforce_touch_event(struct zforce_ts *ts, u8 *payload)
 		/* the zforce id starts with "1", so needs to be decreased */
 		input_mt_slot(ts->input, point.id - 1);
 
-		input_mt_report_slot_state(ts->input, MT_TOOL_FINGER,
-						point.state != STATE_UP);
-
-		if (point.state != STATE_UP) {
+		if (input_mt_report_slot_state(ts->input, MT_TOOL_FINGER,
+			point.state != STATE_UP)) {
 			input_report_abs(ts->input, ABS_MT_POSITION_X,
 					 point.coord_x);
 			input_report_abs(ts->input, ABS_MT_POSITION_Y,
-- 
2.19.2

^ permalink raw reply related	[flat|nested] 10+ messages in thread

* [PATCH v2 02/49] Input: introduce input_mt_report_slot_inactive
  2019-08-27  6:25 ` Jiada Wang
@ 2019-08-27  6:25   ` Jiada Wang
  -1 siblings, 0 replies; 10+ messages in thread
From: Jiada Wang @ 2019-08-27  6:25 UTC (permalink / raw)
  To: nick, dmitry.torokhov; +Cc: linux-input, linux-kernel, jiada_wang, george_davis

input_mt_report_slot_state() ignores the tool when the slot is closed.
which has caused a bit of confusion.
This patch introduces input_mt_report_slot_inactive() to report slot
inactive state.
replaces all input_mt_report_slot_state() with
input_mt_report_slot_inactive() in case of close of slot.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
---
 drivers/hid/hid-alps.c                     | 3 +--
 drivers/hid/hid-multitouch.c               | 6 ++----
 drivers/input/input-mt.c                   | 2 +-
 drivers/input/misc/xen-kbdfront.c          | 2 +-
 drivers/input/mouse/elan_i2c_core.c        | 2 +-
 drivers/input/touchscreen/atmel_mxt_ts.c   | 7 +++----
 drivers/input/touchscreen/cyttsp4_core.c   | 5 ++---
 drivers/input/touchscreen/cyttsp_core.c    | 2 +-
 drivers/input/touchscreen/melfas_mip4.c    | 4 ++--
 drivers/input/touchscreen/mms114.c         | 2 +-
 drivers/input/touchscreen/raspberrypi-ts.c | 2 +-
 drivers/input/touchscreen/stmfts.c         | 2 +-
 include/linux/input/mt.h                   | 5 +++++
 13 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c
index ae79a7c66737..36ca1d815d53 100644
--- a/drivers/hid/hid-alps.c
+++ b/drivers/hid/hid-alps.c
@@ -387,8 +387,7 @@ static int u1_raw_event(struct alps_dev *hdata, u8 *data, int size)
 				input_report_abs(hdata->input,
 					ABS_MT_PRESSURE, z);
 			} else {
-				input_mt_report_slot_state(hdata->input,
-					MT_TOOL_FINGER, 0);
+				input_mt_report_slot_inactive(hdata->input);
 			}
 		}
 
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 672396ed413e..b2221f2030c1 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -880,7 +880,7 @@ static void mt_release_pending_palms(struct mt_device *td,
 		clear_bit(slotnum, app->pending_palm_slots);
 
 		input_mt_slot(input, slotnum);
-		input_mt_report_slot_state(input, MT_TOOL_PALM, false);
+		input_mt_report_slot_inactive(input);
 
 		need_sync = true;
 	}
@@ -1620,9 +1620,7 @@ static void mt_release_contacts(struct hid_device *hid)
 		if (mt) {
 			for (i = 0; i < mt->num_slots; i++) {
 				input_mt_slot(input_dev, i);
-				input_mt_report_slot_state(input_dev,
-							   MT_TOOL_FINGER,
-							   false);
+				input_mt_report_slot_inactive(input_dev);
 			}
 			input_mt_sync_frame(input_dev);
 			input_sync(input_dev);
diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c
index a81e14148407..7626fe5bfe44 100644
--- a/drivers/input/input-mt.c
+++ b/drivers/input/input-mt.c
@@ -145,7 +145,7 @@ bool input_mt_report_slot_state(struct input_dev *dev,
 	slot->frame = mt->frame;
 
 	if (!active) {
-		input_event(dev, EV_ABS, ABS_MT_TRACKING_ID, -1);
+		input_mt_report_slot_inactive(dev);
 		return false;
 	}
 
diff --git a/drivers/input/misc/xen-kbdfront.c b/drivers/input/misc/xen-kbdfront.c
index 24bc5c5d876f..a1bba722b234 100644
--- a/drivers/input/misc/xen-kbdfront.c
+++ b/drivers/input/misc/xen-kbdfront.c
@@ -146,7 +146,7 @@ static void xenkbd_handle_mt_event(struct xenkbd_info *info,
 		break;
 
 	case XENKBD_MT_EV_UP:
-		input_mt_report_slot_state(info->mtouch, MT_TOOL_FINGER, false);
+		input_mt_report_slot_inactive(info->mtouch);
 		break;
 
 	case XENKBD_MT_EV_SYN:
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index d9b103a81a79..b72358d4b35c 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -938,7 +938,7 @@ static void elan_report_contact(struct elan_tp_data *data,
 		input_report_abs(input, ABS_MT_TOUCH_MINOR, minor);
 	} else {
 		input_mt_slot(input, contact_num);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER, false);
+		input_mt_report_slot_inactive(input);
 	}
 }
 
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 4a5f482cf1af..573b94a049b2 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -822,8 +822,7 @@ static void mxt_proc_t9_message(struct mxt_data *data, u8 *message)
 		 * have happened.
 		 */
 		if (status & MXT_T9_RELEASE) {
-			input_mt_report_slot_state(input_dev,
-						   MT_TOOL_FINGER, 0);
+			input_mt_report_slot_inactive(input_dev);
 			mxt_input_sync(data);
 		}
 
@@ -839,7 +838,7 @@ static void mxt_proc_t9_message(struct mxt_data *data, u8 *message)
 		input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, area);
 	} else {
 		/* Touch no longer active, close out slot */
-		input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, 0);
+		input_mt_report_slot_inactive(input_dev);
 	}
 
 	data->update_input = true;
@@ -947,7 +946,7 @@ static void mxt_proc_t100_message(struct mxt_data *data, u8 *message)
 		dev_dbg(dev, "[%u] release\n", id);
 
 		/* close out slot */
-		input_mt_report_slot_state(input_dev, 0, 0);
+		input_mt_report_slot_inactive(input_dev);
 	}
 
 	data->update_input = true;
diff --git a/drivers/input/touchscreen/cyttsp4_core.c b/drivers/input/touchscreen/cyttsp4_core.c
index 4b22d49a0f49..a3a85e2348a2 100644
--- a/drivers/input/touchscreen/cyttsp4_core.c
+++ b/drivers/input/touchscreen/cyttsp4_core.c
@@ -744,8 +744,7 @@ static void cyttsp4_report_slot_liftoff(struct cyttsp4_mt_data *md,
 
 	for (t = 0; t < max_slots; t++) {
 		input_mt_slot(md->input, t);
-		input_mt_report_slot_state(md->input,
-			MT_TOOL_FINGER, false);
+		input_mt_report_slot_inactive(md->input);
 	}
 }
 
@@ -845,7 +844,7 @@ static void cyttsp4_final_sync(struct input_dev *input, int max_slots, int *ids)
 		if (ids[t])
 			continue;
 		input_mt_slot(input, t);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER, false);
+		input_mt_report_slot_inactive(input);
 	}
 
 	input_sync(input);
diff --git a/drivers/input/touchscreen/cyttsp_core.c b/drivers/input/touchscreen/cyttsp_core.c
index 3f5d463dbeed..697aa2c158f7 100644
--- a/drivers/input/touchscreen/cyttsp_core.c
+++ b/drivers/input/touchscreen/cyttsp_core.c
@@ -340,7 +340,7 @@ static void cyttsp_report_tchdata(struct cyttsp *ts)
 			continue;
 
 		input_mt_slot(input, i);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER, false);
+		input_mt_report_slot_inactive(input);
 	}
 
 	input_sync(input);
diff --git a/drivers/input/touchscreen/melfas_mip4.c b/drivers/input/touchscreen/melfas_mip4.c
index 247c3aaba2d8..f67efdd040b2 100644
--- a/drivers/input/touchscreen/melfas_mip4.c
+++ b/drivers/input/touchscreen/melfas_mip4.c
@@ -391,7 +391,7 @@ static void mip4_clear_input(struct mip4_ts *ts)
 	/* Screen */
 	for (i = 0; i < MIP4_MAX_FINGERS; i++) {
 		input_mt_slot(ts->input, i);
-		input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, 0);
+		input_mt_report_slot_inactive(ts->input);
 	}
 
 	/* Keys */
@@ -534,7 +534,7 @@ static void mip4_report_touch(struct mip4_ts *ts, u8 *packet)
 	} else {
 		/* Release event */
 		input_mt_slot(ts->input, id);
-		input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, 0);
+		input_mt_report_slot_inactive(ts->input);
 	}
 
 	input_mt_sync_frame(ts->input);
diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c
index ea46da04e517..d4e088364bed 100644
--- a/drivers/input/touchscreen/mms114.c
+++ b/drivers/input/touchscreen/mms114.c
@@ -550,7 +550,7 @@ static int __maybe_unused mms114_suspend(struct device *dev)
 	/* Release all touch */
 	for (id = 0; id < MMS114_MAX_TOUCH; id++) {
 		input_mt_slot(input_dev, id);
-		input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, false);
+		input_mt_report_slot_inactive(input_dev);
 	}
 
 	input_mt_report_pointer_emulation(input_dev, true);
diff --git a/drivers/input/touchscreen/raspberrypi-ts.c b/drivers/input/touchscreen/raspberrypi-ts.c
index 69881265d121..147ea4f8f87b 100644
--- a/drivers/input/touchscreen/raspberrypi-ts.c
+++ b/drivers/input/touchscreen/raspberrypi-ts.c
@@ -102,7 +102,7 @@ static void rpi_ts_poll(struct input_polled_dev *dev)
 	released_ids = ts->known_ids & ~modified_ids;
 	for_each_set_bit(i, &released_ids, RPI_TS_MAX_SUPPORTED_POINTS) {
 		input_mt_slot(input, i);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER, 0);
+		input_mt_report_slot_inactive(input);
 		modified_ids &= ~(BIT(i));
 	}
 	ts->known_ids = modified_ids;
diff --git a/drivers/input/touchscreen/stmfts.c b/drivers/input/touchscreen/stmfts.c
index b6f95f20f924..b54cc64e4ea6 100644
--- a/drivers/input/touchscreen/stmfts.c
+++ b/drivers/input/touchscreen/stmfts.c
@@ -198,7 +198,7 @@ static void stmfts_report_contact_release(struct stmfts_data *sdata,
 	u8 slot_id = (event[0] & STMFTS_MASK_TOUCH_ID) >> 4;
 
 	input_mt_slot(sdata->input, slot_id);
-	input_mt_report_slot_state(sdata->input, MT_TOOL_FINGER, false);
+	input_mt_report_slot_inactive(sdata->input);
 
 	input_sync(sdata->input);
 }
diff --git a/include/linux/input/mt.h b/include/linux/input/mt.h
index 9e409bb13642..ab9a34c312f9 100644
--- a/include/linux/input/mt.h
+++ b/include/linux/input/mt.h
@@ -97,6 +97,11 @@ static inline bool input_is_mt_axis(int axis)
 	return axis == ABS_MT_SLOT || input_is_mt_value(axis);
 }
 
+static inline void input_mt_report_slot_inactive(struct input_dev *dev)
+{
+	input_event(dev, EV_ABS, ABS_MT_TRACKING_ID, -1);
+
+}
 bool input_mt_report_slot_state(struct input_dev *dev,
 				unsigned int tool_type, bool active);
 
-- 
2.19.2


^ permalink raw reply related	[flat|nested] 10+ messages in thread

* [PATCH v2 02/49] Input: introduce input_mt_report_slot_inactive
@ 2019-08-27  6:25   ` Jiada Wang
  0 siblings, 0 replies; 10+ messages in thread
From: Jiada Wang @ 2019-08-27  6:25 UTC (permalink / raw)
  To: nick, dmitry.torokhov; +Cc: linux-input, linux-kernel, jiada_wang, george_davis

input_mt_report_slot_state() ignores the tool when the slot is closed.
which has caused a bit of confusion.
This patch introduces input_mt_report_slot_inactive() to report slot
inactive state.
replaces all input_mt_report_slot_state() with
input_mt_report_slot_inactive() in case of close of slot.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
---
 drivers/hid/hid-alps.c                     | 3 +--
 drivers/hid/hid-multitouch.c               | 6 ++----
 drivers/input/input-mt.c                   | 2 +-
 drivers/input/misc/xen-kbdfront.c          | 2 +-
 drivers/input/mouse/elan_i2c_core.c        | 2 +-
 drivers/input/touchscreen/atmel_mxt_ts.c   | 7 +++----
 drivers/input/touchscreen/cyttsp4_core.c   | 5 ++---
 drivers/input/touchscreen/cyttsp_core.c    | 2 +-
 drivers/input/touchscreen/melfas_mip4.c    | 4 ++--
 drivers/input/touchscreen/mms114.c         | 2 +-
 drivers/input/touchscreen/raspberrypi-ts.c | 2 +-
 drivers/input/touchscreen/stmfts.c         | 2 +-
 include/linux/input/mt.h                   | 5 +++++
 13 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c
index ae79a7c66737..36ca1d815d53 100644
--- a/drivers/hid/hid-alps.c
+++ b/drivers/hid/hid-alps.c
@@ -387,8 +387,7 @@ static int u1_raw_event(struct alps_dev *hdata, u8 *data, int size)
 				input_report_abs(hdata->input,
 					ABS_MT_PRESSURE, z);
 			} else {
-				input_mt_report_slot_state(hdata->input,
-					MT_TOOL_FINGER, 0);
+				input_mt_report_slot_inactive(hdata->input);
 			}
 		}
 
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 672396ed413e..b2221f2030c1 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -880,7 +880,7 @@ static void mt_release_pending_palms(struct mt_device *td,
 		clear_bit(slotnum, app->pending_palm_slots);
 
 		input_mt_slot(input, slotnum);
-		input_mt_report_slot_state(input, MT_TOOL_PALM, false);
+		input_mt_report_slot_inactive(input);
 
 		need_sync = true;
 	}
@@ -1620,9 +1620,7 @@ static void mt_release_contacts(struct hid_device *hid)
 		if (mt) {
 			for (i = 0; i < mt->num_slots; i++) {
 				input_mt_slot(input_dev, i);
-				input_mt_report_slot_state(input_dev,
-							   MT_TOOL_FINGER,
-							   false);
+				input_mt_report_slot_inactive(input_dev);
 			}
 			input_mt_sync_frame(input_dev);
 			input_sync(input_dev);
diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c
index a81e14148407..7626fe5bfe44 100644
--- a/drivers/input/input-mt.c
+++ b/drivers/input/input-mt.c
@@ -145,7 +145,7 @@ bool input_mt_report_slot_state(struct input_dev *dev,
 	slot->frame = mt->frame;
 
 	if (!active) {
-		input_event(dev, EV_ABS, ABS_MT_TRACKING_ID, -1);
+		input_mt_report_slot_inactive(dev);
 		return false;
 	}
 
diff --git a/drivers/input/misc/xen-kbdfront.c b/drivers/input/misc/xen-kbdfront.c
index 24bc5c5d876f..a1bba722b234 100644
--- a/drivers/input/misc/xen-kbdfront.c
+++ b/drivers/input/misc/xen-kbdfront.c
@@ -146,7 +146,7 @@ static void xenkbd_handle_mt_event(struct xenkbd_info *info,
 		break;
 
 	case XENKBD_MT_EV_UP:
-		input_mt_report_slot_state(info->mtouch, MT_TOOL_FINGER, false);
+		input_mt_report_slot_inactive(info->mtouch);
 		break;
 
 	case XENKBD_MT_EV_SYN:
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index d9b103a81a79..b72358d4b35c 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -938,7 +938,7 @@ static void elan_report_contact(struct elan_tp_data *data,
 		input_report_abs(input, ABS_MT_TOUCH_MINOR, minor);
 	} else {
 		input_mt_slot(input, contact_num);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER, false);
+		input_mt_report_slot_inactive(input);
 	}
 }
 
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 4a5f482cf1af..573b94a049b2 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -822,8 +822,7 @@ static void mxt_proc_t9_message(struct mxt_data *data, u8 *message)
 		 * have happened.
 		 */
 		if (status & MXT_T9_RELEASE) {
-			input_mt_report_slot_state(input_dev,
-						   MT_TOOL_FINGER, 0);
+			input_mt_report_slot_inactive(input_dev);
 			mxt_input_sync(data);
 		}
 
@@ -839,7 +838,7 @@ static void mxt_proc_t9_message(struct mxt_data *data, u8 *message)
 		input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, area);
 	} else {
 		/* Touch no longer active, close out slot */
-		input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, 0);
+		input_mt_report_slot_inactive(input_dev);
 	}
 
 	data->update_input = true;
@@ -947,7 +946,7 @@ static void mxt_proc_t100_message(struct mxt_data *data, u8 *message)
 		dev_dbg(dev, "[%u] release\n", id);
 
 		/* close out slot */
-		input_mt_report_slot_state(input_dev, 0, 0);
+		input_mt_report_slot_inactive(input_dev);
 	}
 
 	data->update_input = true;
diff --git a/drivers/input/touchscreen/cyttsp4_core.c b/drivers/input/touchscreen/cyttsp4_core.c
index 4b22d49a0f49..a3a85e2348a2 100644
--- a/drivers/input/touchscreen/cyttsp4_core.c
+++ b/drivers/input/touchscreen/cyttsp4_core.c
@@ -744,8 +744,7 @@ static void cyttsp4_report_slot_liftoff(struct cyttsp4_mt_data *md,
 
 	for (t = 0; t < max_slots; t++) {
 		input_mt_slot(md->input, t);
-		input_mt_report_slot_state(md->input,
-			MT_TOOL_FINGER, false);
+		input_mt_report_slot_inactive(md->input);
 	}
 }
 
@@ -845,7 +844,7 @@ static void cyttsp4_final_sync(struct input_dev *input, int max_slots, int *ids)
 		if (ids[t])
 			continue;
 		input_mt_slot(input, t);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER, false);
+		input_mt_report_slot_inactive(input);
 	}
 
 	input_sync(input);
diff --git a/drivers/input/touchscreen/cyttsp_core.c b/drivers/input/touchscreen/cyttsp_core.c
index 3f5d463dbeed..697aa2c158f7 100644
--- a/drivers/input/touchscreen/cyttsp_core.c
+++ b/drivers/input/touchscreen/cyttsp_core.c
@@ -340,7 +340,7 @@ static void cyttsp_report_tchdata(struct cyttsp *ts)
 			continue;
 
 		input_mt_slot(input, i);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER, false);
+		input_mt_report_slot_inactive(input);
 	}
 
 	input_sync(input);
diff --git a/drivers/input/touchscreen/melfas_mip4.c b/drivers/input/touchscreen/melfas_mip4.c
index 247c3aaba2d8..f67efdd040b2 100644
--- a/drivers/input/touchscreen/melfas_mip4.c
+++ b/drivers/input/touchscreen/melfas_mip4.c
@@ -391,7 +391,7 @@ static void mip4_clear_input(struct mip4_ts *ts)
 	/* Screen */
 	for (i = 0; i < MIP4_MAX_FINGERS; i++) {
 		input_mt_slot(ts->input, i);
-		input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, 0);
+		input_mt_report_slot_inactive(ts->input);
 	}
 
 	/* Keys */
@@ -534,7 +534,7 @@ static void mip4_report_touch(struct mip4_ts *ts, u8 *packet)
 	} else {
 		/* Release event */
 		input_mt_slot(ts->input, id);
-		input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, 0);
+		input_mt_report_slot_inactive(ts->input);
 	}
 
 	input_mt_sync_frame(ts->input);
diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c
index ea46da04e517..d4e088364bed 100644
--- a/drivers/input/touchscreen/mms114.c
+++ b/drivers/input/touchscreen/mms114.c
@@ -550,7 +550,7 @@ static int __maybe_unused mms114_suspend(struct device *dev)
 	/* Release all touch */
 	for (id = 0; id < MMS114_MAX_TOUCH; id++) {
 		input_mt_slot(input_dev, id);
-		input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, false);
+		input_mt_report_slot_inactive(input_dev);
 	}
 
 	input_mt_report_pointer_emulation(input_dev, true);
diff --git a/drivers/input/touchscreen/raspberrypi-ts.c b/drivers/input/touchscreen/raspberrypi-ts.c
index 69881265d121..147ea4f8f87b 100644
--- a/drivers/input/touchscreen/raspberrypi-ts.c
+++ b/drivers/input/touchscreen/raspberrypi-ts.c
@@ -102,7 +102,7 @@ static void rpi_ts_poll(struct input_polled_dev *dev)
 	released_ids = ts->known_ids & ~modified_ids;
 	for_each_set_bit(i, &released_ids, RPI_TS_MAX_SUPPORTED_POINTS) {
 		input_mt_slot(input, i);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER, 0);
+		input_mt_report_slot_inactive(input);
 		modified_ids &= ~(BIT(i));
 	}
 	ts->known_ids = modified_ids;
diff --git a/drivers/input/touchscreen/stmfts.c b/drivers/input/touchscreen/stmfts.c
index b6f95f20f924..b54cc64e4ea6 100644
--- a/drivers/input/touchscreen/stmfts.c
+++ b/drivers/input/touchscreen/stmfts.c
@@ -198,7 +198,7 @@ static void stmfts_report_contact_release(struct stmfts_data *sdata,
 	u8 slot_id = (event[0] & STMFTS_MASK_TOUCH_ID) >> 4;
 
 	input_mt_slot(sdata->input, slot_id);
-	input_mt_report_slot_state(sdata->input, MT_TOOL_FINGER, false);
+	input_mt_report_slot_inactive(sdata->input);
 
 	input_sync(sdata->input);
 }
diff --git a/include/linux/input/mt.h b/include/linux/input/mt.h
index 9e409bb13642..ab9a34c312f9 100644
--- a/include/linux/input/mt.h
+++ b/include/linux/input/mt.h
@@ -97,6 +97,11 @@ static inline bool input_is_mt_axis(int axis)
 	return axis == ABS_MT_SLOT || input_is_mt_value(axis);
 }
 
+static inline void input_mt_report_slot_inactive(struct input_dev *dev)
+{
+	input_event(dev, EV_ABS, ABS_MT_TRACKING_ID, -1);
+
+}
 bool input_mt_report_slot_state(struct input_dev *dev,
 				unsigned int tool_type, bool active);
 
-- 
2.19.2

^ permalink raw reply related	[flat|nested] 10+ messages in thread

* [PATCH v2 03/49] Input: atmel_mxt_ts - rework sysfs init/remove
  2019-08-27  6:25 ` Jiada Wang
@ 2019-08-27  6:25   ` Jiada Wang
  -1 siblings, 0 replies; 10+ messages in thread
From: Jiada Wang @ 2019-08-27  6:25 UTC (permalink / raw)
  To: nick, dmitry.torokhov; +Cc: linux-input, linux-kernel, jiada_wang, george_davis

From: Nick Dyer <nick.dyer@itdev.co.uk>

An error in the sysfs init may otherwise interfere with the async return
from the firmware loader

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
(cherry picked from ndyer/linux/for-upstream commit 3114584ae77c2b03b6dad87174f010d002e9c05d)
[gdavis: Forward port and fixup conflicts. Also fixed sysfs leaks in
	 both the mxt_initialize() and mxt_probe() error return cases.]
Signed-off-by: George G. Davis <george_davis@mentor.com>
[jiada: keep call mxt_initialize() before sysfs creation]
Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
---
 drivers/input/touchscreen/atmel_mxt_ts.c | 64 +++++++++++++++++++-----
 1 file changed, 52 insertions(+), 12 deletions(-)

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 573b94a049b2..17263c260124 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -2086,10 +2086,14 @@ static int mxt_initialize_input_device(struct mxt_data *data)
 	return 0;
 
 err_free_mem:
+	data->input_dev = NULL;
 	input_free_device(input_dev);
 	return error;
 }
 
+static int mxt_sysfs_init(struct mxt_data *data);
+static void mxt_sysfs_remove(struct mxt_data *data);
+
 static int mxt_configure_objects(struct mxt_data *data,
 				 const struct firmware *cfg);
 
@@ -2141,16 +2145,24 @@ static int mxt_initialize(struct mxt_data *data)
 	if (error)
 		return error;
 
+	error = mxt_sysfs_init(data);
+	if (error)
+		return error;
+
 	error = request_firmware_nowait(THIS_MODULE, true, MXT_CFG_NAME,
 					&client->dev, GFP_KERNEL, data,
 					mxt_config_cb);
 	if (error) {
 		dev_err(&client->dev, "Failed to invoke firmware loader: %d\n",
 			error);
-		return error;
+		goto err_free_sysfs;
 	}
 
 	return 0;
+
+err_free_sysfs:
+	mxt_sysfs_remove(data);
+	return error;
 }
 
 static int mxt_set_t7_power_cfg(struct mxt_data *data, u8 sleep)
@@ -2803,6 +2815,7 @@ static int mxt_load_fw(struct device *dev, const char *fn)
 		if (ret)
 			goto release_firmware;
 
+		mxt_sysfs_remove(data);
 		mxt_free_input_device(data);
 		mxt_free_object_table(data);
 	} else {
@@ -2909,16 +2922,25 @@ static ssize_t mxt_update_fw_store(struct device *dev,
 	return count;
 }
 
+static DEVICE_ATTR(update_fw, S_IWUSR, NULL, mxt_update_fw_store);
+
+static struct attribute *mxt_fw_attrs[] = {
+	&dev_attr_update_fw.attr,
+	NULL
+};
+
+static const struct attribute_group mxt_fw_attr_group = {
+	.attrs = mxt_fw_attrs,
+};
+
 static DEVICE_ATTR(fw_version, S_IRUGO, mxt_fw_version_show, NULL);
 static DEVICE_ATTR(hw_version, S_IRUGO, mxt_hw_version_show, NULL);
 static DEVICE_ATTR(object, S_IRUGO, mxt_object_show, NULL);
-static DEVICE_ATTR(update_fw, S_IWUSR, NULL, mxt_update_fw_store);
 
 static struct attribute *mxt_attrs[] = {
 	&dev_attr_fw_version.attr,
 	&dev_attr_hw_version.attr,
 	&dev_attr_object.attr,
-	&dev_attr_update_fw.attr,
 	NULL
 };
 
@@ -2926,6 +2948,28 @@ static const struct attribute_group mxt_attr_group = {
 	.attrs = mxt_attrs,
 };
 
+static int mxt_sysfs_init(struct mxt_data *data)
+{
+	struct i2c_client *client = data->client;
+	int error;
+
+	error = sysfs_create_group(&client->dev.kobj, &mxt_attr_group);
+	if (error) {
+		dev_err(&client->dev, "Failure %d creating sysfs group\n",
+			error);
+		return error;
+	}
+
+	return 0;
+}
+
+static void mxt_sysfs_remove(struct mxt_data *data)
+{
+	struct i2c_client *client = data->client;
+
+	sysfs_remove_group(&client->dev.kobj, &mxt_attr_group);
+}
+
 static void mxt_start(struct mxt_data *data)
 {
 	switch (data->suspend_mode) {
@@ -3113,19 +3157,14 @@ static int mxt_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	if (error)
 		return error;
 
-	error = sysfs_create_group(&client->dev.kobj, &mxt_attr_group);
+	error = sysfs_create_group(&client->dev.kobj, &mxt_fw_attr_group);
 	if (error) {
-		dev_err(&client->dev, "Failure %d creating sysfs group\n",
+		dev_err(&client->dev, "Failure %d creating fw sysfs group\n",
 			error);
-		goto err_free_object;
+		return error;
 	}
 
 	return 0;
-
-err_free_object:
-	mxt_free_input_device(data);
-	mxt_free_object_table(data);
-	return error;
 }
 
 static int mxt_remove(struct i2c_client *client)
@@ -3133,7 +3172,8 @@ static int mxt_remove(struct i2c_client *client)
 	struct mxt_data *data = i2c_get_clientdata(client);
 
 	disable_irq(data->irq);
-	sysfs_remove_group(&client->dev.kobj, &mxt_attr_group);
+	sysfs_remove_group(&client->dev.kobj, &mxt_fw_attr_group);
+	mxt_sysfs_remove(data);
 	mxt_free_input_device(data);
 	mxt_free_object_table(data);
 
-- 
2.19.2


^ permalink raw reply related	[flat|nested] 10+ messages in thread

* [PATCH v2 03/49] Input: atmel_mxt_ts - rework sysfs init/remove
@ 2019-08-27  6:25   ` Jiada Wang
  0 siblings, 0 replies; 10+ messages in thread
From: Jiada Wang @ 2019-08-27  6:25 UTC (permalink / raw)
  To: nick, dmitry.torokhov; +Cc: linux-input, linux-kernel, jiada_wang, george_davis

From: Nick Dyer <nick.dyer@itdev.co.uk>

An error in the sysfs init may otherwise interfere with the async return
from the firmware loader

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
(cherry picked from ndyer/linux/for-upstream commit 3114584ae77c2b03b6dad87174f010d002e9c05d)
[gdavis: Forward port and fixup conflicts. Also fixed sysfs leaks in
	 both the mxt_initialize() and mxt_probe() error return cases.]
Signed-off-by: George G. Davis <george_davis@mentor.com>
[jiada: keep call mxt_initialize() before sysfs creation]
Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
---
 drivers/input/touchscreen/atmel_mxt_ts.c | 64 +++++++++++++++++++-----
 1 file changed, 52 insertions(+), 12 deletions(-)

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 573b94a049b2..17263c260124 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -2086,10 +2086,14 @@ static int mxt_initialize_input_device(struct mxt_data *data)
 	return 0;
 
 err_free_mem:
+	data->input_dev = NULL;
 	input_free_device(input_dev);
 	return error;
 }
 
+static int mxt_sysfs_init(struct mxt_data *data);
+static void mxt_sysfs_remove(struct mxt_data *data);
+
 static int mxt_configure_objects(struct mxt_data *data,
 				 const struct firmware *cfg);
 
@@ -2141,16 +2145,24 @@ static int mxt_initialize(struct mxt_data *data)
 	if (error)
 		return error;
 
+	error = mxt_sysfs_init(data);
+	if (error)
+		return error;
+
 	error = request_firmware_nowait(THIS_MODULE, true, MXT_CFG_NAME,
 					&client->dev, GFP_KERNEL, data,
 					mxt_config_cb);
 	if (error) {
 		dev_err(&client->dev, "Failed to invoke firmware loader: %d\n",
 			error);
-		return error;
+		goto err_free_sysfs;
 	}
 
 	return 0;
+
+err_free_sysfs:
+	mxt_sysfs_remove(data);
+	return error;
 }
 
 static int mxt_set_t7_power_cfg(struct mxt_data *data, u8 sleep)
@@ -2803,6 +2815,7 @@ static int mxt_load_fw(struct device *dev, const char *fn)
 		if (ret)
 			goto release_firmware;
 
+		mxt_sysfs_remove(data);
 		mxt_free_input_device(data);
 		mxt_free_object_table(data);
 	} else {
@@ -2909,16 +2922,25 @@ static ssize_t mxt_update_fw_store(struct device *dev,
 	return count;
 }
 
+static DEVICE_ATTR(update_fw, S_IWUSR, NULL, mxt_update_fw_store);
+
+static struct attribute *mxt_fw_attrs[] = {
+	&dev_attr_update_fw.attr,
+	NULL
+};
+
+static const struct attribute_group mxt_fw_attr_group = {
+	.attrs = mxt_fw_attrs,
+};
+
 static DEVICE_ATTR(fw_version, S_IRUGO, mxt_fw_version_show, NULL);
 static DEVICE_ATTR(hw_version, S_IRUGO, mxt_hw_version_show, NULL);
 static DEVICE_ATTR(object, S_IRUGO, mxt_object_show, NULL);
-static DEVICE_ATTR(update_fw, S_IWUSR, NULL, mxt_update_fw_store);
 
 static struct attribute *mxt_attrs[] = {
 	&dev_attr_fw_version.attr,
 	&dev_attr_hw_version.attr,
 	&dev_attr_object.attr,
-	&dev_attr_update_fw.attr,
 	NULL
 };
 
@@ -2926,6 +2948,28 @@ static const struct attribute_group mxt_attr_group = {
 	.attrs = mxt_attrs,
 };
 
+static int mxt_sysfs_init(struct mxt_data *data)
+{
+	struct i2c_client *client = data->client;
+	int error;
+
+	error = sysfs_create_group(&client->dev.kobj, &mxt_attr_group);
+	if (error) {
+		dev_err(&client->dev, "Failure %d creating sysfs group\n",
+			error);
+		return error;
+	}
+
+	return 0;
+}
+
+static void mxt_sysfs_remove(struct mxt_data *data)
+{
+	struct i2c_client *client = data->client;
+
+	sysfs_remove_group(&client->dev.kobj, &mxt_attr_group);
+}
+
 static void mxt_start(struct mxt_data *data)
 {
 	switch (data->suspend_mode) {
@@ -3113,19 +3157,14 @@ static int mxt_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	if (error)
 		return error;
 
-	error = sysfs_create_group(&client->dev.kobj, &mxt_attr_group);
+	error = sysfs_create_group(&client->dev.kobj, &mxt_fw_attr_group);
 	if (error) {
-		dev_err(&client->dev, "Failure %d creating sysfs group\n",
+		dev_err(&client->dev, "Failure %d creating fw sysfs group\n",
 			error);
-		goto err_free_object;
+		return error;
 	}
 
 	return 0;
-
-err_free_object:
-	mxt_free_input_device(data);
-	mxt_free_object_table(data);
-	return error;
 }
 
 static int mxt_remove(struct i2c_client *client)
@@ -3133,7 +3172,8 @@ static int mxt_remove(struct i2c_client *client)
 	struct mxt_data *data = i2c_get_clientdata(client);
 
 	disable_irq(data->irq);
-	sysfs_remove_group(&client->dev.kobj, &mxt_attr_group);
+	sysfs_remove_group(&client->dev.kobj, &mxt_fw_attr_group);
+	mxt_sysfs_remove(data);
 	mxt_free_input_device(data);
 	mxt_free_object_table(data);
 
-- 
2.19.2

^ permalink raw reply related	[flat|nested] 10+ messages in thread

* [PATCH v2 04/49] Input: atmel_mxt_ts - only read messages in mxt_acquire_irq() when necessary
  2019-08-27  6:25 ` Jiada Wang
@ 2019-08-27  6:25   ` Jiada Wang
  -1 siblings, 0 replies; 10+ messages in thread
From: Jiada Wang @ 2019-08-27  6:25 UTC (permalink / raw)
  To: nick, dmitry.torokhov; +Cc: linux-input, linux-kernel, jiada_wang, george_davis

From: Nick Dyer <nick.dyer@itdev.co.uk>

The workaround of reading all messages until an invalid is received is a
way of forcing the CHG line high, which means that when using
edge-triggered interrupts the interrupt can be acquired.

With level-triggered interrupts the workaround is unnecessary.

Also, most recent maXTouch chips have a feature called RETRIGEN which, when
enabled, reasserts the interrupt line every cycle if there are messages
waiting. This also makes the workaround unnecessary.

Note: the RETRIGEN feature is only in some firmware versions/chips, it's
not valid simply to enable the bit.

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Acked-by: Benson Leung <bleung@chromium.org>
Acked-by: Yufeng Shen <miletus@chromium.org>
(cherry picked from ndyer/linux/for-upstream commit 1ae4e8281e491b22442cd5acdfca1862555f8ecb)
[gdavis: Fix conflicts due to v4.6-rc7 commit eb43335c4095 ("Input:
	 atmel_mxt_ts - use mxt_acquire_irq in mxt_soft_reset").]
Signed-off-by: George G. Davis <george_davis@mentor.com>
[jiada: reset use_retrigen_workaround at beginning of mxt_check_retrigen()]
Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
---
 drivers/input/touchscreen/atmel_mxt_ts.c | 51 ++++++++++++++++++++++--
 1 file changed, 48 insertions(+), 3 deletions(-)

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 17263c260124..35cbe60094ab 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -20,6 +20,7 @@
 #include <linux/i2c.h>
 #include <linux/input/mt.h>
 #include <linux/interrupt.h>
+#include <linux/irq.h>
 #include <linux/of.h>
 #include <linux/property.h>
 #include <linux/slab.h>
@@ -129,6 +130,7 @@ struct t9_range {
 /* MXT_SPT_COMMSCONFIG_T18 */
 #define MXT_COMMS_CTRL		0
 #define MXT_COMMS_CMD		1
+#define MXT_COMMS_RETRIGEN      BIT(6)
 
 /* MXT_DEBUG_DIAGNOSTIC_T37 */
 #define MXT_DIAGNOSTIC_PAGEUP	0x01
@@ -308,6 +310,7 @@ struct mxt_data {
 	struct t7_config t7_cfg;
 	struct mxt_dbg dbg;
 	struct gpio_desc *reset_gpio;
+	bool use_retrigen_workaround;
 
 	/* Cached parameters from object table */
 	u16 T5_address;
@@ -318,6 +321,7 @@ struct mxt_data {
 	u16 T71_address;
 	u8 T9_reportid_min;
 	u8 T9_reportid_max;
+	u16 T18_address;
 	u8 T19_reportid;
 	u16 T44_address;
 	u8 T100_reportid_min;
@@ -1190,9 +1194,11 @@ static int mxt_acquire_irq(struct mxt_data *data)
 
 	enable_irq(data->irq);
 
-	error = mxt_process_messages_until_invalid(data);
-	if (error)
-		return error;
+	if (data->use_retrigen_workaround) {
+		error = mxt_process_messages_until_invalid(data);
+		if (error)
+			return error;
+	}
 
 	return 0;
 }
@@ -1282,6 +1288,33 @@ static u32 mxt_calculate_crc(u8 *base, off_t start_off, off_t end_off)
 	return crc;
 }
 
+static int mxt_check_retrigen(struct mxt_data *data)
+{
+	struct i2c_client *client = data->client;
+	int error;
+	int val;
+
+	data->use_retrigen_workaround = false;
+
+	if (irq_get_trigger_type(data->irq) & IRQF_TRIGGER_LOW)
+		return 0;
+
+	if (data->T18_address) {
+		error = __mxt_read_reg(client,
+				       data->T18_address + MXT_COMMS_CTRL,
+				       1, &val);
+		if (error)
+			return error;
+
+		if (val & MXT_COMMS_RETRIGEN)
+			return 0;
+	}
+
+	dev_warn(&client->dev, "Enabling RETRIGEN workaround\n");
+	data->use_retrigen_workaround = true;
+	return 0;
+}
+
 static int mxt_prepare_cfg_mem(struct mxt_data *data, struct mxt_cfg *cfg)
 {
 	struct device *dev = &data->client->dev;
@@ -1561,6 +1594,10 @@ static int mxt_update_cfg(struct mxt_data *data, const struct firmware *fw)
 
 	mxt_update_crc(data, MXT_COMMAND_BACKUPNV, MXT_BACKUP_VALUE);
 
+	ret = mxt_check_retrigen(data);
+	if (ret)
+		goto release_mem;
+
 	ret = mxt_soft_reset(data);
 	if (ret)
 		goto release_mem;
@@ -1604,6 +1641,7 @@ static void mxt_free_object_table(struct mxt_data *data)
 	data->T71_address = 0;
 	data->T9_reportid_min = 0;
 	data->T9_reportid_max = 0;
+	data->T18_address = 0;
 	data->T19_reportid = 0;
 	data->T44_address = 0;
 	data->T100_reportid_min = 0;
@@ -1678,6 +1716,9 @@ static int mxt_parse_object_table(struct mxt_data *data,
 						object->num_report_ids - 1;
 			data->num_touchids = object->num_report_ids;
 			break;
+		case MXT_SPT_COMMSCONFIG_T18:
+			data->T18_address = object->start_address;
+			break;
 		case MXT_SPT_MESSAGECOUNT_T44:
 			data->T44_address = object->start_address;
 			break;
@@ -2141,6 +2182,10 @@ static int mxt_initialize(struct mxt_data *data)
 		msleep(MXT_FW_RESET_TIME);
 	}
 
+	error = mxt_check_retrigen(data);
+	if (error)
+		return error;
+
 	error = mxt_acquire_irq(data);
 	if (error)
 		return error;
-- 
2.19.2


^ permalink raw reply related	[flat|nested] 10+ messages in thread

* [PATCH v2 04/49] Input: atmel_mxt_ts - only read messages in mxt_acquire_irq() when necessary
@ 2019-08-27  6:25   ` Jiada Wang
  0 siblings, 0 replies; 10+ messages in thread
From: Jiada Wang @ 2019-08-27  6:25 UTC (permalink / raw)
  To: nick, dmitry.torokhov; +Cc: linux-input, linux-kernel, jiada_wang, george_davis

From: Nick Dyer <nick.dyer@itdev.co.uk>

The workaround of reading all messages until an invalid is received is a
way of forcing the CHG line high, which means that when using
edge-triggered interrupts the interrupt can be acquired.

With level-triggered interrupts the workaround is unnecessary.

Also, most recent maXTouch chips have a feature called RETRIGEN which, when
enabled, reasserts the interrupt line every cycle if there are messages
waiting. This also makes the workaround unnecessary.

Note: the RETRIGEN feature is only in some firmware versions/chips, it's
not valid simply to enable the bit.

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Acked-by: Benson Leung <bleung@chromium.org>
Acked-by: Yufeng Shen <miletus@chromium.org>
(cherry picked from ndyer/linux/for-upstream commit 1ae4e8281e491b22442cd5acdfca1862555f8ecb)
[gdavis: Fix conflicts due to v4.6-rc7 commit eb43335c4095 ("Input:
	 atmel_mxt_ts - use mxt_acquire_irq in mxt_soft_reset").]
Signed-off-by: George G. Davis <george_davis@mentor.com>
[jiada: reset use_retrigen_workaround at beginning of mxt_check_retrigen()]
Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
---
 drivers/input/touchscreen/atmel_mxt_ts.c | 51 ++++++++++++++++++++++--
 1 file changed, 48 insertions(+), 3 deletions(-)

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 17263c260124..35cbe60094ab 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -20,6 +20,7 @@
 #include <linux/i2c.h>
 #include <linux/input/mt.h>
 #include <linux/interrupt.h>
+#include <linux/irq.h>
 #include <linux/of.h>
 #include <linux/property.h>
 #include <linux/slab.h>
@@ -129,6 +130,7 @@ struct t9_range {
 /* MXT_SPT_COMMSCONFIG_T18 */
 #define MXT_COMMS_CTRL		0
 #define MXT_COMMS_CMD		1
+#define MXT_COMMS_RETRIGEN      BIT(6)
 
 /* MXT_DEBUG_DIAGNOSTIC_T37 */
 #define MXT_DIAGNOSTIC_PAGEUP	0x01
@@ -308,6 +310,7 @@ struct mxt_data {
 	struct t7_config t7_cfg;
 	struct mxt_dbg dbg;
 	struct gpio_desc *reset_gpio;
+	bool use_retrigen_workaround;
 
 	/* Cached parameters from object table */
 	u16 T5_address;
@@ -318,6 +321,7 @@ struct mxt_data {
 	u16 T71_address;
 	u8 T9_reportid_min;
 	u8 T9_reportid_max;
+	u16 T18_address;
 	u8 T19_reportid;
 	u16 T44_address;
 	u8 T100_reportid_min;
@@ -1190,9 +1194,11 @@ static int mxt_acquire_irq(struct mxt_data *data)
 
 	enable_irq(data->irq);
 
-	error = mxt_process_messages_until_invalid(data);
-	if (error)
-		return error;
+	if (data->use_retrigen_workaround) {
+		error = mxt_process_messages_until_invalid(data);
+		if (error)
+			return error;
+	}
 
 	return 0;
 }
@@ -1282,6 +1288,33 @@ static u32 mxt_calculate_crc(u8 *base, off_t start_off, off_t end_off)
 	return crc;
 }
 
+static int mxt_check_retrigen(struct mxt_data *data)
+{
+	struct i2c_client *client = data->client;
+	int error;
+	int val;
+
+	data->use_retrigen_workaround = false;
+
+	if (irq_get_trigger_type(data->irq) & IRQF_TRIGGER_LOW)
+		return 0;
+
+	if (data->T18_address) {
+		error = __mxt_read_reg(client,
+				       data->T18_address + MXT_COMMS_CTRL,
+				       1, &val);
+		if (error)
+			return error;
+
+		if (val & MXT_COMMS_RETRIGEN)
+			return 0;
+	}
+
+	dev_warn(&client->dev, "Enabling RETRIGEN workaround\n");
+	data->use_retrigen_workaround = true;
+	return 0;
+}
+
 static int mxt_prepare_cfg_mem(struct mxt_data *data, struct mxt_cfg *cfg)
 {
 	struct device *dev = &data->client->dev;
@@ -1561,6 +1594,10 @@ static int mxt_update_cfg(struct mxt_data *data, const struct firmware *fw)
 
 	mxt_update_crc(data, MXT_COMMAND_BACKUPNV, MXT_BACKUP_VALUE);
 
+	ret = mxt_check_retrigen(data);
+	if (ret)
+		goto release_mem;
+
 	ret = mxt_soft_reset(data);
 	if (ret)
 		goto release_mem;
@@ -1604,6 +1641,7 @@ static void mxt_free_object_table(struct mxt_data *data)
 	data->T71_address = 0;
 	data->T9_reportid_min = 0;
 	data->T9_reportid_max = 0;
+	data->T18_address = 0;
 	data->T19_reportid = 0;
 	data->T44_address = 0;
 	data->T100_reportid_min = 0;
@@ -1678,6 +1716,9 @@ static int mxt_parse_object_table(struct mxt_data *data,
 						object->num_report_ids - 1;
 			data->num_touchids = object->num_report_ids;
 			break;
+		case MXT_SPT_COMMSCONFIG_T18:
+			data->T18_address = object->start_address;
+			break;
 		case MXT_SPT_MESSAGECOUNT_T44:
 			data->T44_address = object->start_address;
 			break;
@@ -2141,6 +2182,10 @@ static int mxt_initialize(struct mxt_data *data)
 		msleep(MXT_FW_RESET_TIME);
 	}
 
+	error = mxt_check_retrigen(data);
+	if (error)
+		return error;
+
 	error = mxt_acquire_irq(data);
 	if (error)
 		return error;
-- 
2.19.2

^ permalink raw reply related	[flat|nested] 10+ messages in thread

end of thread, other threads:[~2019-08-27  6:26 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-08-27  6:25 [PATCH v2 00/49] atmel_mxt_ts misc Jiada Wang
2019-08-27  6:25 ` Jiada Wang
2019-08-27  6:25 ` [PATCH v2 01/49] Input: switch to use return value of input_mt_report_slot_state Jiada Wang
2019-08-27  6:25   ` Jiada Wang
2019-08-27  6:25 ` [PATCH v2 02/49] Input: introduce input_mt_report_slot_inactive Jiada Wang
2019-08-27  6:25   ` Jiada Wang
2019-08-27  6:25 ` [PATCH v2 03/49] Input: atmel_mxt_ts - rework sysfs init/remove Jiada Wang
2019-08-27  6:25   ` Jiada Wang
2019-08-27  6:25 ` [PATCH v2 04/49] Input: atmel_mxt_ts - only read messages in mxt_acquire_irq() when necessary Jiada Wang
2019-08-27  6:25   ` Jiada Wang

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