Commit b3ed1b7f authored by Barnabás Pőcze's avatar Barnabás Pőcze Committed by Hans de Goede
Browse files

platform/x86: ideapad-laptop: check for touchpad support in _CFG 



Bit 30 of _CFG is set if the device has a touchpad, check that
in is_visible() for the touchpad attribute. Show 'touchpad', if
supported, in the list of capabilities in the 'cfg' debugfs file.

Signed-off-by: default avatarBarnabás Pőcze <pobrn@protonmail.com>
Reviewed-by: default avatarHans de Goede <hdegoede@redhat.com>
Reviewed-by: default avatarAndy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210203215403.290792-21-pobrn@protonmail.com


Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
parent 392cbf0a

drivers/platform/x86/ideapad-laptop.c

+9 −5
Original line number Diff line number Diff line
@@ -45,6 +45,7 @@ enum { 
	CFG_CAP_3G_BIT       = 17,

	CFG_CAP_WIFI_BIT     = 18,

	CFG_CAP_CAM_BIT      = 19,

	CFG_CAP_TOUCHPAD_BIT = 30,

};



enum {
@@ -337,6 +338,8 @@ static int debugfs_cfg_show(struct seq_file *s, void *data) 
		seq_printf(s, "Wireless ");

	if (test_bit(CFG_CAP_CAM_BIT, &priv->cfg))

		seq_printf(s, "Camera ");

	if (test_bit(CFG_CAP_TOUCHPAD_BIT, &priv->cfg))

		seq_printf(s, "Touchpad ");

	seq_printf(s, "\nGraphic: ");

	switch ((priv->cfg)&0x700) {

	case 0x100:
@@ -579,7 +582,8 @@ static umode_t ideapad_is_visible(struct kobject *kobj, 
	else if (attr == &dev_attr_fn_lock.attr)

		supported = priv->features.fn_lock;

	else if (attr == &dev_attr_touchpad.attr)

		supported = priv->features.touchpad_ctrl_via_ec;

		supported = priv->features.touchpad_ctrl_via_ec &&

			    test_bit(CFG_CAP_TOUCHPAD_BIT, &priv->cfg);



	return supported ? attr->mode : 0;

}