Merge tag 'i3c/for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux

Pull initial i3c support from Boris Brezillon:
 "Add initial support for I3C along with two I3C master controller
  drivers"

* tag 'i3c/for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
  i3c: master: cdns: fix I2C transfers in Cadence I3C master driver
  ic3: off by one in mode_show()
  i3c: fix an error code in i3c_master_add_i3c_dev_locked()
  i3c: master: dw: fix mask operation by using the correct operator
  MAINTAINERS: Add myself as the dw-i3c-master module maintainer
  dt-binding: i3c: Document Synopsys DesignWare I3C
  i3c: master: Add driver for Synopsys DesignWare IP
  i3c: master: Remove set but not used variable 'old_i3c_scl_lim'
  dt-bindings: i3c: Document Cadence I3C master bindings
  i3c: master: Add driver for Cadence IP
  MAINTAINERS: Add myself as the I3C subsystem maintainer
  dt-bindings: i3c: Document core bindings
  i3c: Add sysfs ABI spec
  docs: driver-api: Add I3C documentation
  i3c: Add core I3C infrastructure

MAINTAINERS

@@ -7088,6 +7088,24 @@ L:	linux-i2c@vger.kernel.org
 S:	Maintained
 F:	drivers/i2c/i2c-stub.c
 
+I3C SUBSYSTEM
+M:	Boris Brezillon <bbrezillon@kernel.org>
+L:	linux-i3c@lists.infradead.org
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux.git
+S:	Maintained
+F:	Documentation/ABI/testing/sysfs-bus-i3c
+F:	Documentation/devicetree/bindings/i3c/
+F:	Documentation/driver-api/i3c
+F:	drivers/i3c/
+F:	include/linux/i3c/
+F:	include/dt-bindings/i3c/
+
+I3C DRIVER FOR SYNOPSYS DESIGNWARE
+M:	Vitor Soares <vitor.soares@synopsys.com>
+S:	Maintained
+F:	Documentation/devicetree/bindings/i3c/snps,dw-i3c-master.txt
+F:	drivers/i3c/master/dw*
+
 IA64 (Itanium) PLATFORM
 M:	Tony Luck <tony.luck@intel.com>
 M:	Fenghua Yu <fenghua.yu@intel.com>