Hi, this patchset provides support for the ST-Microelectronics FingerTip S touchscreen device. It's tested on top of mainline kernel on TM2 and TM2e boards. Thanks, Andi Changelog V3-V4 =============== V3: https://marc.info/?l=linux-kernel&m=149062016401170&w=2 After an offline discussion, I applied some changes suggested by Dmitry. - some cosmetic changes - interrupt gets disabled explicitly instead of using IRQ_NOAUTOEN - cleaner management of the input reports - the parsing of the event has been split into two major switch chunks, this might cause some event id overlapping, but the probability is quite rare Changelog V2-V3 =============== V2: https://marc.info/?l=linux-kernel&m=148669314305915&w=2 - fixed multi touch broken protocol reported by Chanwoo; - disabled irqs at the registration by setting the IRQ_NOAUTOEN flag, as suggested by Andrzej; - changed the interrupt handling policy: in the V1 and V2 the events were read one by one (8 each), this was increasing the overhead. Now all the events are read in a single operation, but because the stack is deep 32 events (256bytes, 32*8), it's impossible to use the smbus protocol. The i2c_transfer() functions is used instead; - random code changes; - patch 3 in the V1 and V2 patchset has been omitted because Krzysztof already merged it. Changelog V1-V2 =============== V1: https://marc.info/?l=linux-kernel&m=148466204431327&w=2 - fixed Javier's, Krzysztof's and Dmitry's reviews - added Javier's review tag on patch 1 and 3 - the main difference of the driver from v2 is that the driver generates only one input interface instead of two (one for the touchscreen and one for the touchkeys). The job of filtering the events is demanded to userspace applications that are accessing the device. This is done by making an ioctl call: ioctl(fd, EVIOCSMASK, &mask); where 'mask' is an 'input_mask' structure that contains the type variable of the EV_* that needs to be filtered out. Andi Shyti (2): Input: add STMicroelectronics FingerTip touchscreen driver Input: add support for the STMicroelectronics FingerTip touchscreen .../bindings/input/touchscreen/st,stmfts.txt | 43 ++ drivers/input/touchscreen/Kconfig | 11 + drivers/input/touchscreen/Makefile | 1 + drivers/input/touchscreen/stmfts.c | 823 +++++++++++++++++++++ 4 files changed, 878 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/touchscreen/st,stmfts.txt create mode 100644 drivers/input/touchscreen/stmfts.c -- 2.11.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
