Hello everyone, Here's a set of patches that turn the existing SMIA driver into a MIPI CCS driver while maintaining SMIA support. A number of bugs in the existing code are fixed in this set, too. The changes at this point are primarily focused on dealing with new mandatory driver features related to PLL configuration (as CCS allows for much more variation there) and things such as integer conversion from U16.U16 format instead of float. There are some other new features as well such as digital gain and support for getting device specific analogue gain coefficients. A new feature in CCS is CCS static data which makes it possible to obtain sensor's capabilities and limits from a file chosen based on sensor identification. CCS static data is used also for storing MSR registers so supporting new, CCS compliant devices requires no driver changes. Note that the library as well as the register definitions are dual licensed under GNU GPL v2 OR BSD 3-clause licenses for use outside the Linux kernel. Also DT bindings are updated accordingly and converted to YAML format. More information on MIPI CCS can be found here: <URL:https://www.mipi.org/specifications/camera-command-set> Comments are welcome. Sakari Ailus (100): smiapp: Add CCS register definitions and limits smiapp: Use CCS register flags smiapp: Calculate CCS limit offsets and limit buffer size smiapp: Remove macros for defining registers, merge definitions smiapp: Add macros for accessing CCS registers smiapp: Use MIPI CCS version and manufacturer ID information smiapp: Read CCS limit values smiapp: Switch to CCS limits smiapp: Obtain frame descriptor from CCS limits smiapp: Use CCS limits in reading data format descriptors smiapp: Use CCS limits in reading binning capabilities smiapp: Use CCS registers smiapp: Remove quirk function for writing a single 8-bit register smiapp: Rename register access functions smiapp: Internal rename to CCS smiapp: Differentiate CCS sensors from SMIA in subdev naming smiapp: Rename as "ccs" ccs: Remove profile concept ccs: Give all subdevs a function dt-bindings: Add vendor prefix for MIPI Alliance dt-bindings: nokia,smia: Fix link-frequencies documentation dt-bindings: nokia,smia: Make vana-supply optional dt-bindings: nokia,smia: Convert to YAML dt-bindings: nokia,smia: Use better active polarity for reset dt-bindings: Amend SMIA bindings with MIPI CCS support dt-bindings: Add bus-type for C-PHY support ccs: Request for "reset" GPIO ccs: Add "mipi,ccs" compatible string ccs: Remove the I²C ID table ccs: Remove remaining support for platform data ccs: Make hwcfg part of the device specific struct ccs: Add CCS static data parser library ccs: Combine revision number major and minor into one ccs: Read CCS static data from firmware binaries ccs: Stop reading arrays after the first zero ccs: The functions to get compose or crop rectangle never return NULL ccs: Replace somewhat harsh internal checks based on BUG with WARN_ON ccs: Refactor register reading a little ccs: Make real to integer number conversion optional ccs: Move limit value real to integer conversion from read to access time ccs: Read ireal numbers correctly smiapp-pll: Rename as ccs-pll ccs: Change my e-mail address ccs: Add support for manufacturer regs from sensor and module files ccs: Use static data read-only registers ccs: Clean up runtime PM usage ccs: Wrap long lines, unwrap short ones ccs: Add device compatible identifiers for telling SMIA and CCS apart ccs: Use longer pre-I²C sleep for CCS compliant devices ccs-pll: Don't use div_u64 to divide a 32-bit number ccs-pll: Split limits and PLL configuration into front and back parts ccs-pll: Use correct VT divisor for calculating VT SYS divisor ccs-pll: End search if there are no better values available ccs-pll: Remove parallel bus support ccs-pll: Differentiate between CSI-2 D-PHY and C-PHY ccs-pll: Move the flags field down, away from 8-bit fields ccs-pll: Document the structs in the header as well as the function ccs-pll: Use the BIT macro ccs-pll: Begin calculation from OP system clock frequency ccs-pll: Fix condition for pre-PLL divider lower bound ccs-pll: Avoid overflow in pre-PLL divisor lower bound search ccs-pll: Fix comment on check against maximum PLL multiplier ccs-pll: Fix check for PLL multiplier upper bound ccs-pll: Use explicit 32-bit unsigned type ccs-pll: Add support for lane speed model ccs: Add support for lane speed model ccs-pll: Add support for decoupled OP domain calculation ccs-pll: Add support for extended input PLL clock divider ccs-pll: Support two cycles per pixel on OP domain ccs-pll: Add support flexible OP PLL pixel clock divider ccs-pll: Add sanity checks ccs-pll: Add C-PHY support ccs-pll: Split off VT subtree calculation ccs-pll: Check for derating and overrating, support non-derating sensors ccs-pll: Better separate OP and VT sub-tree calculation ccs-pll: Print relevant information on PLL tree ccs-pll: Rework bounds checks ccs-pll: Make VT divisors 16-bit ccs-pll: Fix VT post-PLL divisor calculation ccs-pll: Separate VT divisor limit calculation from the rest ccs-pll: Add trivial dual PLL support ccs: Dual PLL support ccs-pll: Add support for DDR OP system and pixel clocks ccs: Add support for DDR OP SYS and OP PIX clocks ccs: Print written register values ccs-pll: Print pixel rates ccs: Add support for obtaining C-PHY configuration from firmware ccs: Add digital gain support ccs: Add support for old-style SMIA digital gain ccs: Remove analogue gain field ccs: Only add analogue gain control if the device supports it v4l: Add user control base for CCS controls v4l: uapi: Add controls for analogue gain constants ccs: Add support for analogue gain coefficient controls v4l: uapi: Add controls for CCS alternative analogue gain ccs: Add support for alternate analogue global gain ccs: Add debug prints for MSR registers v4l: uapi: Add CCS controls for correction configuration and capabilities ccs: Add shading correction and luminance correction level controls smiapp: Add CCS ACPI device ID .../bindings/media/i2c/mipi,ccs.yaml | 164 + .../bindings/media/i2c/nokia,smia.txt | 66 - .../devicetree/bindings/vendor-prefixes.yaml | 2 + MAINTAINERS | 20 +- drivers/media/i2c/Kconfig | 4 +- drivers/media/i2c/Makefile | 4 +- drivers/media/i2c/ccs-pll.c | 885 ++++ drivers/media/i2c/ccs-pll.h | 211 + drivers/media/i2c/ccs/Kconfig | 11 + drivers/media/i2c/ccs/Makefile | 6 + drivers/media/i2c/ccs/ccs-core.c | 3665 +++++++++++++++++ drivers/media/i2c/ccs/ccs-data-defs.h | 215 + drivers/media/i2c/ccs/ccs-data.c | 949 +++++ drivers/media/i2c/ccs/ccs-data.h | 116 + drivers/media/i2c/ccs/ccs-limits.c | 239 ++ drivers/media/i2c/ccs/ccs-limits.h | 258 ++ drivers/media/i2c/ccs/ccs-os.h | 15 + .../smiapp-quirk.c => ccs/ccs-quirk.c} | 105 +- .../smiapp-quirk.h => ccs/ccs-quirk.h} | 54 +- drivers/media/i2c/ccs/ccs-reg-access.c | 417 ++ drivers/media/i2c/ccs/ccs-reg-access.h | 42 + drivers/media/i2c/ccs/ccs-regs.h | 953 +++++ .../media/i2c/{smiapp/smiapp.h => ccs/ccs.h} | 183 +- drivers/media/i2c/ccs/smiapp-reg-defs.h | 582 +++ drivers/media/i2c/smiapp-pll.c | 482 --- drivers/media/i2c/smiapp-pll.h | 99 - drivers/media/i2c/smiapp/Kconfig | 10 - drivers/media/i2c/smiapp/Makefile | 6 - drivers/media/i2c/smiapp/smiapp-core.c | 3173 -------------- drivers/media/i2c/smiapp/smiapp-limits.c | 118 - drivers/media/i2c/smiapp/smiapp-limits.h | 114 - drivers/media/i2c/smiapp/smiapp-reg-defs.h | 489 --- drivers/media/i2c/smiapp/smiapp-reg.h | 116 - drivers/media/i2c/smiapp/smiapp-regs.c | 261 -- drivers/media/i2c/smiapp/smiapp-regs.h | 36 - include/uapi/linux/ccs.h | 21 + include/uapi/linux/v4l2-controls.h | 6 + 37 files changed, 8939 insertions(+), 5158 deletions(-) create mode 100644 Documentation/devicetree/bindings/media/i2c/mipi,ccs.yaml delete mode 100644 Documentation/devicetree/bindings/media/i2c/nokia,smia.txt create mode 100644 drivers/media/i2c/ccs-pll.c create mode 100644 drivers/media/i2c/ccs-pll.h create mode 100644 drivers/media/i2c/ccs/Kconfig create mode 100644 drivers/media/i2c/ccs/Makefile create mode 100644 drivers/media/i2c/ccs/ccs-core.c create mode 100644 drivers/media/i2c/ccs/ccs-data-defs.h create mode 100644 drivers/media/i2c/ccs/ccs-data.c create mode 100644 drivers/media/i2c/ccs/ccs-data.h create mode 100644 drivers/media/i2c/ccs/ccs-limits.c create mode 100644 drivers/media/i2c/ccs/ccs-limits.h create mode 100644 drivers/media/i2c/ccs/ccs-os.h rename drivers/media/i2c/{smiapp/smiapp-quirk.c => ccs/ccs-quirk.c} (63%) rename drivers/media/i2c/{smiapp/smiapp-quirk.h => ccs/ccs-quirk.h} (53%) create mode 100644 drivers/media/i2c/ccs/ccs-reg-access.c create mode 100644 drivers/media/i2c/ccs/ccs-reg-access.h create mode 100644 drivers/media/i2c/ccs/ccs-regs.h rename drivers/media/i2c/{smiapp/smiapp.h => ccs/ccs.h} (53%) create mode 100644 drivers/media/i2c/ccs/smiapp-reg-defs.h delete mode 100644 drivers/media/i2c/smiapp-pll.c delete mode 100644 drivers/media/i2c/smiapp-pll.h delete mode 100644 drivers/media/i2c/smiapp/Kconfig delete mode 100644 drivers/media/i2c/smiapp/Makefile delete mode 100644 drivers/media/i2c/smiapp/smiapp-core.c delete mode 100644 drivers/media/i2c/smiapp/smiapp-limits.c delete mode 100644 drivers/media/i2c/smiapp/smiapp-limits.h delete mode 100644 drivers/media/i2c/smiapp/smiapp-reg-defs.h delete mode 100644 drivers/media/i2c/smiapp/smiapp-reg.h delete mode 100644 drivers/media/i2c/smiapp/smiapp-regs.c delete mode 100644 drivers/media/i2c/smiapp/smiapp-regs.h create mode 100644 include/uapi/linux/ccs.h -- 2.27.0
