3 Commits

Author	SHA1	Message	Date
Charles Wang	240801c5f4	Input: goodix-berlin - add sysfs interface for reading and writing touch IC registers ... Export a sysfs interface that would allow reading and writing touchscreen IC registers. With this interface many things can be done in usersapce such as firmware updates. An example tool that utilizes this interface for performing firmware updates can be found at [1]. [1] https://github.com/goodix/fwupdate_for_berlin_linux Signed-off-by: Charles Wang <charles.goodix@gmail.com> Link: https://lore.kernel.org/r/20240514115135.21410-1-charles.goodix@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>	2024-07-19 14:57:17 -07:00
Dmitry Torokhov	03db8425cc	Input: goodix_berlin - use __free() cleanup in SPI transport ... Switch the driver to use __free(kfree) cleanup facility instead of freeing memory by hand. Link: https://lore.kernel.org/r/Zmk1SGwVt3rIbbMU@google.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>	2024-06-28 15:09:05 -07:00
Neil Armstrong	3aa182bbc5	Input: goodix-berlin - add SPI support for Goodix Berlin Touchscreen IC ... Add initial support for the new Goodix "Berlin" touchscreen ICs over the SPI interface. The driver doesn't use the regmap_spi code since the SPI messages needs to be prefixed, thus this custom regmap code. This initial driver is derived from the Goodix goodix_ts_berlin available at [1] and [2] and only supports the GT9916 IC present on the Qualcomm SM8550 MTP & QRD touch panel. The current implementation only supports BerlinD, aka GT9916. [1] https://github.com/goodix/goodix_ts_berlin [2] https://git.codelinaro.org/clo/la/platform/vendor/opensource/touch-drivers Reviewed-by: Jeff LaBundy <jeff@labundy.com> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20240129-topic-goodix-berlin-upstream-initial-v15-4-6f7d096c0a0a@linaro.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>	2024-01-30 15:16:32 -08:00