diff options
| -rw-r--r-- | drivers/input/mouse/synaptics.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index 26386f9d256..ef148f997c8 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -265,11 +265,22 @@ static int synaptics_identify(struct psmouse *psmouse) * Read touchpad resolution and maximum reported coordinates * Resolution is left zero if touchpad does not support the query */ + +static const int *quirk_min_max; + static int synaptics_resolution(struct psmouse *psmouse) { struct synaptics_data *priv = psmouse->private; unsigned char resp[3]; + if (quirk_min_max) { + priv->x_min = quirk_min_max[0]; + priv->x_max = quirk_min_max[1]; + priv->y_min = quirk_min_max[2]; + priv->y_max = quirk_min_max[3]; + return 0; + } + if (SYN_ID_MAJOR(priv->identity) < 4) return 0; @@ -1485,10 +1496,46 @@ static const struct dmi_system_id olpc_dmi_table[] __initconst = { { } }; +static const struct dmi_system_id min_max_dmi_table[] __initconst = { +#if defined(CONFIG_DMI) + { + /* Lenovo ThinkPad Helix */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad Helix"), + }, + .driver_data = (int []){1024, 5052, 2258, 4832}, + }, + { + /* Lenovo ThinkPad T440s */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T440"), + }, + .driver_data = (int []){1024, 5112, 2024, 4832}, + }, + { + /* Lenovo ThinkPad T540p */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T540"), + }, + .driver_data = (int []){1024, 5056, 2058, 4832}, + }, +#endif + { } +}; + void __init synaptics_module_init(void) { + const struct dmi_system_id *min_max_dmi; + impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table); broken_olpc_ec = dmi_check_system(olpc_dmi_table); + + min_max_dmi = dmi_first_match(min_max_dmi_table); + if (min_max_dmi) + quirk_min_max = min_max_dmi->driver_data; } static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode) |