This series primarily adds interrupt support to the FSI driver subsystem. There are a number of related changes and fixes. Firstly, the FSI clocking model is improved to allow FSI engine drivers to obtain real clock rates and calculate appropriate clock dividers. Secondly, much master code is made common through the use of a regmap to access master registers. This will prove more useful as additional FSI master drivers are added. Lastly, interrupt support is added to the FSI I2C driver. Changes since v2: - Add several patches to fix additional issues found during testing - For local bus frequenccy, use cfam clock-frequency property instead of hardcoded master local bus divider - Change default local bus clock divider from 8 to 2 - Zero the regmap_config structure in the common FSI initialization function - Add AST2700 direct AHB access of master registers - Remove slave interrupt handler since it's not used yet - For I2C driver, change minimum clock div to 3, use DIV_ROUND_UP instead of re-implementing it, and use better logic for checking for clock-frequency property - Add detail to I2C driver formatting change Eddie James (40): fsi: hub: Set master index to link number plus one fsi: Move slave definitions to fsi-slave.h fsi: Fix slave addressing after break command fsi: Use a defined value for default echo delay fsi: Calculate local bus clock frequency fsi: core: Improve master read/write/error traces fsi: core: Add slave error trace fsi: core: Reset errors instead of clearing interrupts fsi: aspeed: Add AST2700 support fsi: core: Add slave spinlock fsi: core: Allow cfam device type aliases fsi: core: Add common regmap master functions fsi: core: Disable relative addressing during scan fsi: hub: Use common initialization and link enable fsi: aspeed: Use common initialization and link enable fsi: aspeed: Remove cfam reset sysfs file in error path and remove fsi: aspeed: Refactor trace functions fsi: aspeed: Don't clear all IRQs during OPB transfers fsi: aspeed: Only read result register for successful read fsi: aspeed: Switch to spinlock fsi: aspeed: Disable relative addressing and IPOLL for cfam reset fsi: aspeed: Use common master error handler fsi: core: Add interrupt support fsi: aspeed: Add interrupt support fsi: hub: Add interrupt support i2c: fsi: Calculate clock divider from local bus frequency i2c: fsi: Improve formatting i2c: fsi: Change fsi_i2c_write_reg to accept data instead of a pointer i2c: fsi: Remove list structure of ports i2c: fsi: Define a function to check status error bits i2c: fsi: Add boolean for skip stop command on abort i2c: fsi: Add interrupt support fsi: hub master: Reset hub master after errors fsi: core: Add master register read-only sysfs fsi: core: Add slave register read-only sysfs fsi: i2cr: Adjust virtual CFAM ID to match Odyssey chip fsi: core: Add different types of CFAM spi: fsi: Calculate clock divider from local bus frequency ARM: dts: aspeed: P10 and tacoma: Set FSI clock frequency ARM: dts: aspeed: P10: Bump SPI max frequencies .../dts/aspeed/aspeed-bmc-ibm-everest.dts | 32 +- .../boot/dts/aspeed/aspeed-bmc-opp-tacoma.dts | 1 + .../arm/boot/dts/aspeed/ibm-power10-dual.dtsi | 17 +- .../arm/boot/dts/aspeed/ibm-power10-quad.dtsi | 16 +- drivers/fsi/Kconfig | 2 + drivers/fsi/fsi-core.c | 888 +++++++++++++++--- drivers/fsi/fsi-master-aspeed.c | 431 +++++---- drivers/fsi/fsi-master-hub.c | 244 ++--- drivers/fsi/fsi-master-i2cr.c | 2 +- drivers/fsi/fsi-master.h | 33 + drivers/fsi/fsi-slave.h | 118 +++ drivers/i2c/busses/i2c-fsi.c | 463 ++++++--- drivers/spi/spi-fsi.c | 33 +- include/linux/fsi.h | 3 + include/trace/events/fsi.h | 190 ++-- include/trace/events/fsi_master_aspeed.h | 86 +- include/trace/events/i2c_fsi.h | 45 + 17 files changed, 1917 insertions(+), 687 deletions(-) create mode 100644 include/trace/events/i2c_fsi.h -- 2.39.3
