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. since the big, big patchset (v2): - Split into more easily reviewable chunks (this is the second of maybe three). The cover page describes the entire big set. This set contains new DT compatible strings, CCS ACPI ID, rudimentary support for CCS (without PLL changes most sensors need, that's for later), including CCS static data. - Fix SPDX tags. Some were left accidentally with BSD-3-Clause license only. - Remove WARN_ON() from snprintf(), but return an error instead. - Free loaded static data on error as well. - Add descriptions to ccs-data-defs.h and ccs-data.h to document the difference between the two. - Make the delay after I²C transfer error a range. - Make better use of kernel support functions. - Depends on earlier pull request here: <URL:https://patchwork.linuxtv.org/project/linux-media/patch/20201123231950.GD4351@xxxxxxxxxxxxxxxxxxxxxxxxxx/> Sakari Ailus (30): ccs: Add MIPI CCS compatible strings ccs: Add device compatible identifiers for telling SMIA and CCS apart ccs: Add CCS ACPI device ID ccs: Remove the I²C ID table ccs: Remove remaining support for platform data ccs: Make hwcfg part of the device specific struct ccs: Fix obtaining bus information from firmware 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-pll: Fix MODULE_LICENSE ccs: Change my e-mail address ccs: Allow range in between I²C retries 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: Use longer pre-I²C sleep for CCS compliant devices ccs: Remove unnecessary delays from power-up sequence dt-bindings: mipi,ccs: Don't mention vana voltage dt-bindings: mipi,ccs: Add vcore and vio supplies ccs: Use all regulators .../bindings/media/i2c/mipi-ccs.yaml | 11 +- MAINTAINERS | 4 +- drivers/media/i2c/Kconfig | 2 +- drivers/media/i2c/Makefile | 2 +- drivers/media/i2c/{smiapp-pll.c => ccs-pll.c} | 66 +- drivers/media/i2c/{smiapp-pll.h => ccs-pll.h} | 42 +- drivers/media/i2c/ccs/Kconfig | 2 +- drivers/media/i2c/ccs/Makefile | 2 +- drivers/media/i2c/ccs/ccs-core.c | 396 +++++--- drivers/media/i2c/ccs/ccs-data-defs.h | 219 ++++ drivers/media/i2c/ccs/ccs-data.c | 944 ++++++++++++++++++ drivers/media/i2c/ccs/ccs-data.h | 120 +++ drivers/media/i2c/ccs/ccs-quirk.c | 10 +- drivers/media/i2c/ccs/ccs-quirk.h | 2 +- drivers/media/i2c/ccs/ccs-reg-access.c | 227 ++++- drivers/media/i2c/ccs/ccs-reg-access.h | 6 +- drivers/media/i2c/ccs/ccs.h | 24 +- 17 files changed, 1805 insertions(+), 274 deletions(-) rename drivers/media/i2c/{smiapp-pll.c => ccs-pll.c} (89%) rename drivers/media/i2c/{smiapp-pll.h => ccs-pll.h} (66%) 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 -- 2.27.0
