linux-dev/drivers/hid/i2c-hid, branch master

Merge tag 'for-linus-2022100501' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid

2022-10-07T18:13:42Z

Pull HID updates from Benjamin Tissoires: - handle of all Logitech Bluetooth HID++ devices in the Logitech HID++ drivers (Bastien Nocera) - fix broken atomic checks in hid-multitouch by adding memory barriers (Andri Yngvason) - better handling of devices with AMD SFH1.1 (Basavaraj Natikar) - better support of Nintendo clone controllers (Icenowy Zheng and Johnothan King) - Support for various RC controllers (Marcus Folkesson) - Add UGEEv2 support in hid-uclogic (XP-PEN Deco Pro S and Parblo A610 PRO) (José Expósito) - some conversions to use dev_groups (Greg Kroah-Hartman) - HID-BPF preparatory patches, mostly to convert blank defines as enums (Benjamin Tissoires) * tag 'for-linus-2022100501' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (38 commits) HID: wacom: add three styli to wacom_intuos_get_tool_type HID: amd_sfh: Handle condition of "no sensors" for SFH1.1 HID: amd_sfh: Change dev_err to dev_dbg for additional debug info HID: nintendo: check analog user calibration for plausibility HID: nintendo: deregister home LED when it fails HID: roccat: Fix use-after-free in roccat_read() hid: topre: Add driver fixing report descriptor HID: multitouch: Add memory barriers HID: convert defines of HID class requests into a proper enum HID: export hid_report_type to uapi HID: core: store the unique system identifier in hid_device HID: Add driver for PhoenixRC Flight Controller HID: Add driver for VRC-2 Car Controller HID: sony: Fix double word in comments hid: hid-logitech-hidpp: avoid unnecessary assignments in hidpp_connect_event HID: logitech-hidpp: Detect hi-res scrolling support HID: logitech-hidpp: Remove hard-coded "Sw. Id." for HID++ 2.0 commands HID: logitech-hidpp: Fix "Sw. Id." for HID++ 2.0 commands HID: logitech-hidpp: Remove special-casing of Bluetooth devices HID: logitech-hidpp: Enable HID++ for all the Logitech Bluetooth devices ...

HID: move from strlcpy with unused retval to strscpy

2022-08-25T09:44:27Z

Follow the advice of the below link and prefer 'strscpy' in this subsystem. Conversion is 1:1 because the return value is not used. Generated by a coccinelle script. Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/ Signed-off-by: Wolfram Sang Signed-off-by: Jiri Kosina

i2c: Make remove callback return void

2022-08-16T10:46:26Z

The value returned by an i2c driver's remove function is mostly ignored. (Only an error message is printed if the value is non-zero that the error is ignored.) So change the prototype of the remove function to return no value. This way driver authors are not tempted to assume that passing an error to the upper layer is a good idea. All drivers are adapted accordingly. There is no intended change of behaviour, all callbacks were prepared to return 0 before. Reviewed-by: Peter Senna Tschudin Reviewed-by: Jeremy Kerr Reviewed-by: Benjamin Mugnier Reviewed-by: Javier Martinez Canillas Reviewed-by: Crt Mori Reviewed-by: Heikki Krogerus Acked-by: Greg Kroah-Hartman Acked-by: Marek Behún # for leds-turris-omnia Acked-by: Andy Shevchenko Reviewed-by: Petr Machata # for mlxsw Reviewed-by: Maximilian Luz # for surface3_power Acked-by: Srinivas Pandruvada # for bmc150-accel-i2c + kxcjk-1013 Reviewed-by: Hans Verkuil # for media/* + staging/media/* Acked-by: Miguel Ojeda # for auxdisplay/ht16k33 + auxdisplay/lcd2s Reviewed-by: Luca Ceresoli # for versaclock5 Reviewed-by: Ajay Gupta # for ucsi_ccg Acked-by: Jonathan Cameron # for iio Acked-by: Peter Rosin # for i2c-mux-*, max9860 Acked-by: Adrien Grassein # for lontium-lt8912b Reviewed-by: Jean Delvare # for hwmon, i2c-core and i2c/muxes Acked-by: Corey Minyard # for IPMI Reviewed-by: Vladimir Oltean Acked-by: Dmitry Torokhov Acked-by: Sebastian Reichel # for drivers/power Acked-by: Krzysztof Hałasa Signed-off-by: Uwe Kleine-König Signed-off-by: Wolfram Sang

HID: i2c-hid: elan: Add support for Elan eKTH6915 i2c-hid touchscreens

2022-06-08T09:46:23Z

Like many i2c-hid touchscreen controllers, the Elan eKTH6915 has a reset GPIO hooked up to it. According to the datasheet, the way we're supposed to turn the touchscreen on is: 1. Turn on the 3.3V supply. 2. Turn on the IO supply. It's OK if this is hardwired to the 3.3V supply, but if it's not then it must be turned on _after_ the 3.3V supply. 3. Wait >= 1 ms. 4. Deassert the reset GPIO (reset GPIO is active low, so there would be a leakage path if this was deasserted _before_ the IO supply). 5. Wait 300 ms. Much of the above can be handled by the generic i2c-hid-of driver, but the "reset" GPIO is not supported by that driver. Thus we'll do the same as we did for Goodix and add a new tiny driver that uses the i2c-hid core. NOTE: support for this new touchscreen could theorically fit into the Goodix driver. I've made it a separate driver because the Elan driver supports _two_ regulators and it's unclear exactly how that would fit in with commit 18eeef46d359 ("HID: i2c-hid: goodix: Tie the reset line to true state of the regulator"). Signed-off-by: Douglas Anderson Reviewed-by: Dmitry Torokhov Reviewed-by: Matthias Kaehlcke Signed-off-by: Jiri Kosina

Merge branch 'for-5.18/i2c-hid' into for-linus

2022-03-23T09:04:40Z

- fixes for handling unnumbered reports fully correctly (Angela Czubak Dmitry Torokhov) - untangling of intermingled code for sending and handling output reports in __i2c_hid_command() (Dmitry Torokhov)

HID: i2c-hid: remove unneeded semicolon

2022-02-16T15:30:00Z

Eliminate the following coccicheck warning: ./drivers/hid/i2c-hid/i2c-hid-core.c:357:56-57: Unneeded semicolon Reported-by: Abaci Robot Signed-off-by: Yang Li Signed-off-by: Jiri Kosina

HID: i2c-hid: note that I2C xfer buffers are DMA-safe

2022-02-14T09:52:29Z

All I2C communications in the driver use driver-private buffers that are DMA-safe, so mark them as such. Signed-off-by: Dmitry Torokhov Tested-by: Benjamin Tissoires Signed-off-by: Jiri Kosina

HID: i2c-hid: no longer need raw access to HID descriptor structure

2022-02-14T09:52:29Z

We can stop defining a union for HID descriptor data as we now only access individual members of it by names and using proper types instead of accessing by offset from the beginning of the data structure. Signed-off-by: Dmitry Torokhov Tested-by: Benjamin Tissoires Signed-off-by: Jiri Kosina

HID: i2c-hid: use helpers to do endian conversion in i2c_hid_get_input()

2022-02-14T09:52:29Z

It is better to use helpers to do endian conversion as it documents and draws attention to it, and might be a bit more performant as well. Signed-off-by: Dmitry Torokhov Tested-by: Benjamin Tissoires Signed-off-by: Jiri Kosina

HID: i2c-hid: rework i2c_hid_get_report() to use i2c_hid_xfer()

2022-02-14T09:51:08Z

Explicitly prepare command for i2c_hid_get_report() which makes the logic clearer and allows us to get rid of __i2c_hid_command() and related command definitions. Signed-off-by: Dmitry Torokhov Tested-by: Benjamin Tissoires Signed-off-by: Jiri Kosina