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Input updates for v6.11-rc4

Browse Source 
- a tweak to uinput interface to reject requests with abnormally large
   number of slots. 100 slots/contacts should be enough for real devices
 
 - support for FocalTech FT8201 added to the edt-ft5x06 driver
 
 - tweaks to i8042 to handle more devices that have issue with its
   emulation
 
 - Synaptics touchpad switched to native SMbus/RMI mode on HP Elitebook
   840 G2
 
 - other minor fixes.
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Merge tag 'input-for-v6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

Pull input fixes from Dmitry Torokhov:

 - a tweak to uinput interface to reject requests with abnormally large
   number of slots. 100 slots/contacts should be enough for real devices

 - support for FocalTech FT8201 added to the edt-ft5x06 driver

 - tweaks to i8042 to handle more devices that have issue with its
   emulation

 - Synaptics touchpad switched to native SMbus/RMI mode on HP Elitebook
   840 G2

 - other minor fixes

* tag 'input-for-v6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: himax_hx83112b - fix incorrect size when reading product ID
  Input: i8042 - use new forcenorestore quirk to replace old buggy quirk combination
  Input: i8042 - add forcenorestore quirk to leave controller untouched even on s3
  Input: i8042 - add Fujitsu Lifebook E756 to i8042 quirk table
  Input: uinput - reject requests with unreasonable number of slots
  Input: edt-ft5x06 - add support for FocalTech FT8201
  dt-bindings: input: touchscreen: edt-ft5x06: Document FT8201 support
  Input: adc-joystick - fix optional value handling
  Input: synaptics - enable SMBus for HP Elitebook 840 G2
  Input: ads7846 - ratelimit the spi_sync error message
This commit is contained in:
Linus Torvalds 2024-08-24 08:15:21 +08:00
commit 7eb61cc674
9 changed files with 54 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml
View File

@ -42,6 +42,7 @@ properties:
- focaltech,ft5426
- focaltech,ft5452
- focaltech,ft6236
- focaltech,ft8201
- focaltech,ft8719
reg:

7
drivers/input/joystick/adc-joystick.c
View File

@ -182,8 +182,11 @@ static int adc_joystick_set_axes(struct device *dev, struct adc_joystick *joy)
swap(range[0], range[1]);
}
fwnode_property_read_u32(child, "abs-fuzz", &fuzz);
fwnode_property_read_u32(child, "abs-flat", &flat);
if (fwnode_property_read_u32(child, "abs-fuzz", &fuzz))
fuzz = 0;
if (fwnode_property_read_u32(child, "abs-flat", &flat))
flat = 0;
input_set_abs_params(joy->input, axes[i].code,
range[0], range[1], fuzz, flat);

14
drivers/input/misc/uinput.c
View File

@ -417,6 +417,20 @@ static int uinput_validate_absinfo(struct input_dev *dev, unsigned int code,
return -EINVAL;
}
/*
* Limit number of contacts to a reasonable value (100). This
* ensures that we need less than 2 pages for struct input_mt
* (we are not using in-kernel slot assignment so not going to
* allocate memory for the "red" table), and we should have no
* trouble getting this much memory.
*/
if (code == ABS_MT_SLOT && max > 99) {
printk(KERN_DEBUG
"%s: unreasonably large number of slots requested: %d\n",
UINPUT_NAME, max);
return -EINVAL;
}
return 0;
}

1
drivers/input/mouse/synaptics.c
View File

@ -189,6 +189,7 @@ static const char * const smbus_pnp_ids[] = {
"LEN2054", /* E480 */
"LEN2055", /* E580 */
"LEN2068", /* T14 Gen 1 */
"SYN3015", /* HP EliteBook 840 G2 */
"SYN3052", /* HP EliteBook 840 G4 */
"SYN3221", /* HP 15-ay000 */
"SYN323d", /* HP Spectre X360 13-w013dx */

29
drivers/input/serio/i8042-acpipnpio.h
View File

@ -83,6 +83,7 @@ static inline void i8042_write_command(int val)
#define SERIO_QUIRK_KBDRESET BIT(12)
#define SERIO_QUIRK_DRITEK BIT(13)
#define SERIO_QUIRK_NOPNP BIT(14)
#define SERIO_QUIRK_FORCENORESTORE BIT(15)
/* Quirk table for different mainboards. Options similar or identical to i8042
* module parameters.
@ -626,6 +627,15 @@ static const struct dmi_system_id i8042_dmi_quirk_table[] __initconst = {
},
.driver_data = (void *)(SERIO_QUIRK_NOMUX)
},
{
/* Fujitsu Lifebook E756 */
/* https://bugzilla.suse.com/show_bug.cgi?id=1229056 */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E756"),
},
.driver_data = (void *)(SERIO_QUIRK_NOMUX)
},
{
/* Fujitsu Lifebook E5411 */
.matches = {
@ -1149,18 +1159,10 @@ static const struct dmi_system_id i8042_dmi_quirk_table[] __initconst = {
SERIO_QUIRK_NOLOOP | SERIO_QUIRK_NOPNP)
},
{
/*
* Setting SERIO_QUIRK_NOMUX or SERIO_QUIRK_RESET_ALWAYS makes
* the keyboard very laggy for ~5 seconds after boot and
* sometimes also after resume.
* However both are required for the keyboard to not fail
* completely sometimes after boot or resume.
*/
.matches = {
DMI_MATCH(DMI_BOARD_NAME, "N150CU"),
},
.driver_data = (void *)(SERIO_QUIRK_NOMUX | SERIO_QUIRK_RESET_ALWAYS |
SERIO_QUIRK_NOLOOP | SERIO_QUIRK_NOPNP)
.driver_data = (void *)(SERIO_QUIRK_FORCENORESTORE)
},
{
.matches = {
@ -1685,6 +1687,8 @@ static void __init i8042_check_quirks(void)
if (quirks & SERIO_QUIRK_NOPNP)
i8042_nopnp = true;
#endif
if (quirks & SERIO_QUIRK_FORCENORESTORE)
i8042_forcenorestore = true;
}
#else
static inline void i8042_check_quirks(void) {}
@ -1718,7 +1722,7 @@ static int __init i8042_platform_init(void)
i8042_check_quirks();
pr_debug("Active quirks (empty means none):%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
pr_debug("Active quirks (empty means none):%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
i8042_nokbd ? " nokbd" : "",
i8042_noaux ? " noaux" : "",
i8042_nomux ? " nomux" : "",
@ -1738,10 +1742,11 @@ static int __init i8042_platform_init(void)
"",
#endif
#ifdef CONFIG_PNP
i8042_nopnp ? " nopnp" : "");
i8042_nopnp ? " nopnp" : "",
#else
"");
"",
#endif
i8042_forcenorestore ? " forcenorestore" : "");
retval = i8042_pnp_init();
if (retval)

10
drivers/input/serio/i8042.c
View File

@ -115,6 +115,10 @@ module_param_named(nopnp, i8042_nopnp, bool, 0);
MODULE_PARM_DESC(nopnp, "Do not use PNP to detect controller settings");
#endif
static bool i8042_forcenorestore;
module_param_named(forcenorestore, i8042_forcenorestore, bool, 0);
MODULE_PARM_DESC(forcenorestore, "Force no restore on s3 resume, copying s2idle behaviour");
#define DEBUG
#ifdef DEBUG
static bool i8042_debug;
@ -1232,7 +1236,7 @@ static int i8042_pm_suspend(struct device *dev)
{
int i;
if (pm_suspend_via_firmware())
if (!i8042_forcenorestore && pm_suspend_via_firmware())
i8042_controller_reset(true);
/* Set up serio interrupts for system wakeup. */
@ -1248,7 +1252,7 @@ static int i8042_pm_suspend(struct device *dev)
static int i8042_pm_resume_noirq(struct device *dev)
{
if (!pm_resume_via_firmware())
if (i8042_forcenorestore || !pm_resume_via_firmware())
i8042_interrupt(0, NULL);
return 0;
@ -1271,7 +1275,7 @@ static int i8042_pm_resume(struct device *dev)
* not restore the controller state to whatever it had been at boot
* time, so we do not need to do anything.
*/
if (!pm_suspend_via_firmware())
if (i8042_forcenorestore || !pm_suspend_via_firmware())
return 0;
/*

2
drivers/input/touchscreen/ads7846.c
View File

@ -824,7 +824,7 @@ static void ads7846_read_state(struct ads7846 *ts)
m = &ts->msg[msg_idx];
error = spi_sync(ts->spi, m);
if (error) {
dev_err(&ts->spi->dev, "spi_sync --> %d\n", error);
dev_err_ratelimited(&ts->spi->dev, "spi_sync --> %d\n", error);
packet->ignore = true;
return;
}

6
drivers/input/touchscreen/edt-ft5x06.c
View File

@ -1474,6 +1474,10 @@ static const struct edt_i2c_chip_data edt_ft6236_data = {
.max_support_points = 2,
};
static const struct edt_i2c_chip_data edt_ft8201_data = {
.max_support_points = 10,
};
static const struct edt_i2c_chip_data edt_ft8719_data = {
.max_support_points = 10,
};
@ -1485,6 +1489,7 @@ static const struct i2c_device_id edt_ft5x06_ts_id[] = {
{ .name = "ft5452", .driver_data = (long)&edt_ft5452_data },
/* Note no edt- prefix for compatibility with the ft6236.c driver */
{ .name = "ft6236", .driver_data = (long)&edt_ft6236_data },
{ .name = "ft8201", .driver_data = (long)&edt_ft8201_data },
{ .name = "ft8719", .driver_data = (long)&edt_ft8719_data },
{ /* sentinel */ }
};
@ -1500,6 +1505,7 @@ static const struct of_device_id edt_ft5x06_of_match[] = {
{ .compatible = "focaltech,ft5452", .data = &edt_ft5452_data },
/* Note focaltech vendor prefix for compatibility with ft6236.c */
{ .compatible = "focaltech,ft6236", .data = &edt_ft6236_data },
{ .compatible = "focaltech,ft8201", .data = &edt_ft8201_data },
{ .compatible = "focaltech,ft8719", .data = &edt_ft8719_data },
{ /* sentinel */ }
};

14
drivers/input/touchscreen/himax_hx83112b.c
View File

@ -130,17 +130,6 @@ static int himax_bus_read(struct himax_ts_data *ts, u32 address, void *dst,
return 0;
}
static int himax_read_mcu(struct himax_ts_data *ts, u32 address, u32 *dst)
{
int error;
error = himax_bus_read(ts, address, dst, sizeof(dst));
if (error)
return error;
return 0;
}
static void himax_reset(struct himax_ts_data *ts)
{
gpiod_set_value_cansleep(ts->gpiod_rst, 1);
@ -160,7 +149,8 @@ static int himax_read_product_id(struct himax_ts_data *ts, u32 *product_id)
{
int error;
error = himax_read_mcu(ts, HIMAX_REG_ADDR_ICID, product_id);
error = himax_bus_read(ts, HIMAX_REG_ADDR_ICID, product_id,
sizeof(*product_id));
if (error)
return error;