On Mon, 6 Jan 2025, Even Xu wrote: > Intel Touch Host Controller (THC) is a new high performance input IP > which can benefit HID device's data transaction, such as touch screen, > touch pad, stylus. > > THC IP now evoluates to V4, it can support 3 different modes: IPTS, > HIDSPI and HIDI2C. Here are upgrade history: > - THC v1, for TGL/LKF, supports intel private IPTS (Intel Precise Touch > and Stylus) protocol ( IPTS mode) > - THC v2, for ADL, adds industrial standard HID over SPI protocol > support (HIDSPI mode) > - THC v3, for MTL, enhances HID over SPI mode > - THC v4, for LNL, adds inudstrial standard HID over I2C protocol > support (HIDI2C mode) > > Linux Surface community (https://github.com/linux-surface) already > implemented IPTS mode. These patch series provides THC HIDSPI mode and > THC HIDI2C mode support on Linux. > > These patch series includes: > 1. Document for THC hardware and software introduction. > 2. Intel THC Hardware layer driver which provides control interfaces > for protocol layer. > 3. Intel QuickSPI (R) driver working as a HIDSPI device driver which > implements HID over SPI protocol and flow. > 4. Intel QuickI2C (R) driver working as a HIDI2C device driver which > implements HID over I2C protocol and flow. > > Change logs: > v4: > - Minor fix in documents > - Typo fixes in patch 6 & patch 7 commit descriptions > > v3: > - Change tables in documents from literal block to table format > - Change symbol namespace to string literal according to patch: > commit cdd30ebb1b9f ("module: Convert symbol namespace to string literal") > - Refine Kconfig description > - Enhance Quickspi and Quicki2c driver by clearing THC hardware internal > state before doing initialization to avoid BIOS impacts. > - A fix in Quicki2c driver when does set_report > > v2: > - Fix document format issues > - Add THC device IDs for Intel Panther Lake (PTL) platform > > Even Xu (13): > HID: THC: Add documentation > HID: intel-thc-hid: intel-thc: Add THC DMA interfaces > HID: intel-thc-hid: intel-thc: Add THC I2C config interfaces > HID: intel-thc-hid: intel-quickspi: Add THC QuickSPI driver hid layer > HID: intel-thc-hid: intel-quickspi: Add THC QuickSPI ACPI interfaces > HID: intel-thc-hid: intel-quickspi: Add HIDSPI protocol implementation > HID: intel-thc-hid: intel-quickspi: Add PM implementation > HID: intel-thc-hid: intel-quicki2c: Add THC QuickI2C driver skeleton > HID: intel-thc-hid: intel-quicki2c: Add THC QuickI2C driver hid layer > HID: intel-thc-hid: intel-quicki2c: Add THC QuickI2C ACPI interfaces > HID: intel-thc-hid: intel-quicki2c: Add HIDI2C protocol implementation > HID: intel-thc-hid: intel-quicki2c: Complete THC QuickI2C driver > HID: intel-thc-hid: intel-quicki2c: Add PM implementation > > Xinpeng Sun (9): > HID: intel-thc-hid: Add basic THC driver skeleton > HID: intel-thc-hid: intel-thc: Add THC registers definition > HID: intel-thc-hid: intel-thc: Add THC PIO operation APIs > HID: intel-thc-hid: intel-thc: Add APIs for interrupt > HID: intel-thc-hid: intel-thc: Add THC LTR interfaces > HID: intel-thc-hid: intel-thc: Add THC interrupt handler > HID: intel-thc-hid: intel-thc: Add THC SPI config interfaces > HID: intel-thc-hid: intel-quickspi: Add THC QuickSPI driver skeleton > HID: intel-thc-hid: intel-quickspi: Complete THC QuickSPI driver Now queued in hid.git#for-6.14/intel-thc. Thanks, -- Jiri Kosina SUSE Labs
