Hi,
On 21-01-17 20:04, Dmitry Torokhov wrote:
Hi Hans,
On Mon, Jan 02, 2017 at 11:55:38AM +0100, Hans de Goede wrote:
On ACPI based tablets, the ACPI touchscreen node only contains info on
the gpio and the irq, and is missing any info on the axis. This info is
expected to be built into the tablet model specific version of the driver
shipped with the os-image for the device.
Add support for getting the missing info from a table built into the
driver, using dmi data to identify which entry of the table to use and
add info for the CUBE iwork8 Air and Jumper EZpad mini3 tablets on which
this code was tested / developed.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=187531
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
Changes in v2:
-Put the dmi code in a separate silead_dmi.c file
-Use device_add_properties to add the info
This leaks data (device_add_properties() does deep copy of properties)
you unbind and rebind the driver.
Also I would prefer this all be kept in the swamp that is platform
drivers and I believe we have enough infrastructure to do just that.
Could you please tell me if the following version of the patch works on
your devices?
I had to drop the unregistering of the bus-notifier, as the i2c controller
driver may be a module (and in my case is as I'm testing with a Fedora
distro kernel based .config) so the device may not get registered
till after late_init.
With that + the ACPI names fixed it works. I still need to test on the
ezpad (only tested on the cube so far) then I'll submit this (as v3)
to the platform drivers maintainer with you in the Cc.
Regards,
Hans
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