Hi Kim, On Fri, Jan 11, 2019 at 02:54:30PM -0600, Kim Phillips wrote: > This patch is the result of seeing this message: > > psmouse serio1: synaptics: Your touchpad (PNP: DLL087c PNP0f13) says it can support a different bus. If i2c-hid and hid-rmi are not used, you might want to try setting psmouse.synaptics_intertouch to 1 and report this to linux-input@xxxxxxxxxxxxxxx. > > If I set psmouse.synaptics_intertouch=1, or add the PNP ID to > smbus_pnp_ids, the touchpad continues to work, and the above message > goes away, but we now get: > > psmouse serio1: synaptics: Trying to set up SMBus access > psmouse serio1: synaptics: SMbus companion is not ready yet > > With this patch applied, i.e., the PNP IDs are added to the forcepad > array, the touchpad continues to work and all of the above messages > disappear. Are you sure the touchpad in XPSes is a forcepad (i.e. it does not have physical button underneath it)? As far as I know there were only couple of HP laptops with forcepads and when switching to RMI mode forcepads need F21 handler that we do not currently have in the kernel. > > Tested on a Dell XPS 15 9570. The other IDs - for Dell XPS 13 > 9350/9360/9370 and XPS 15 9550/9560 - were obtained by searching > for the model numbers and "says it can support a different bus". > E.g, this is one such instance: > > https://lkml.org/lkml/2018/2/15/52 > > Cc: Paul Menzel <pmenzel@xxxxxxxxxxxxx> > Cc: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx> > Cc: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx> > Cc: linux-input@xxxxxxxxxxxxxxx > Signed-off-by: Kim Phillips <kim@xxxxxxxxxxxxxxx> > --- > With or without this patch, I'm seeing a problem where when the XPS 15 > comes out of a resume, and without even touching the touchpad, I notice > about 600 interrupts per second firing on the "IR-IO-APIC 51-fasteoi > SYNA2393:00" line in /proc/interrupts. If I start using the touchpad, > then leave it alone, I check if there are still interrupts firing, and > they have indeed stopped. This adversely affects my battery life when > using an external mouse. Any ideas on how to debug the situation? > Could it be related to the 'vdd not found' messages?: > > $ dmesg | grep -C 1 -i syna > probe of 1-12 returned 1 after 2343 usecs > psmouse serio1: synaptics: queried max coordinates: x [..5664], y [..4646] > psmouse serio1: synaptics: queried min coordinates: x [1278..], y [1206..] > psmouse serio1: synaptics: Touchpad model: 1, fw: 8.2, id: 0x1e2b1, caps: 0xf00123/0x840300/0x12e800/0x0, board id: 3125, fw id: 2378871 > input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input6 > probe of serio1 returned 1 after 939332 usecs > -- > probe of idma64.1 returned 1 after 72 usecs > i2c_hid i2c-SYNA2393:00: i2c-SYNA2393:00 supply vdd not found, using dummy regulator > i2c_hid i2c-SYNA2393:00: Linked as a consumer to regulator.0 > i2c_hid i2c-SYNA2393:00: i2c-SYNA2393:00 supply vddl not found, using dummy regulator > ath10k_pci 0000:3b:00.0: qca6174 hw3.2 target 0x05030000 chip_id 0x00340aff sub 1a56:1535 > -- > ath10k_pci 0000:3b:00.0: firmware ver WLAN.RM.4.4.1-00079-QCARMSWPZ-1 api 6 features wowlan,ignore-otp crc32 fd869beb > probe of i2c-SYNA2393:00 returned 1 after 23978 usecs > ath10k_pci 0000:3b:00.0: board_file api 2 bmi_id N/A crc32 20d869c3 > -- > probe of 0018:056A:488F.0001 returned 1 after 1366 usecs > input: SYNA2393:00 06CB:7A13 Mouse as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-10/i2c-SYNA2393:00/0018:06CB:7A13.0002/input/input23 > input: SYNA2393:00 06CB:7A13 Touchpad as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-10/i2c-SYNA2393:00/0018:06CB:7A13.0002/input/input24 > hid-generic 0018:06CB:7A13.0002: input,hidraw1: I2C HID v1.00 Mouse [SYNA2393:00 06CB:7A13] on i2c-SYNA2393:00 > probe of 0018:06CB:7A13.0002 returned 1 after 320 usecs > -- > probe of 0018:06CB:7A13.0002 returned 0 after 5 usecs > input: SYNA2393:00 06CB:7A13 Touchpad as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-10/i2c-SYNA2393:00/0018:06CB:7A13.0002/input/input27 > hid-multitouch 0018:06CB:7A13.0002: input,hidraw1: I2C HID v1.00 Mouse [SYNA2393:00 06CB:7A13] on i2c-SYNA2393:00 > probe of 0018:06CB:7A13.0002 returned 1 after 25104 usecs > > drivers/input/mouse/synaptics.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c > index b6da0c1267e3..e3fb4b9346c0 100644 > --- a/drivers/input/mouse/synaptics.c > +++ b/drivers/input/mouse/synaptics.c > @@ -185,6 +185,12 @@ static const char * const smbus_pnp_ids[] = { > }; > > static const char * const forcepad_pnp_ids[] = { > + "DLL06e4", /* Dell XPS 15 9550 */ > + "DLL0704", /* Dell XPS 13 9350 */ > + "DLL075b", /* Dell XPS 13 9360 */ > + "DLL07be", /* Dell XPS 15 9560 */ > + "DLL07e6", /* Dell XPS 13 9370 */ > + "DLL087c", /* Dell XPS 15 9570 */ > "SYN300D", > "SYN3014", > NULL > -- > 2.20.1 > Thanks. -- Dmitry
