471de2c027
The ARM MHU's reference manual states following: "The MHU drives the signal using a 32-bit register, with all 32 bits logically ORed together. The MHU provides a set of registers to enable software to set, clear, and check the status of each of the bits of this register independently. The use of 32 bits for each interrupt line enables software to provide more information about the source of the interrupt. For example, each bit of the register can be associated with a type of event that can contribute to raising the interrupt." This patch thus extends the MHU controller's DT binding to add support for doorbell mode. Though the same MHU hardware controller is used in the two modes, A new compatible string is added here to represent the combination of the MHU hardware and the firmware sitting on the other side (which expects each bit to represent a different signal now). Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Co-developed-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> |
||
|---|---|---|
| .. | ||
| bindings | ||
| booting-without-of.rst | ||
| changesets.rst | ||
| dynamic-resolution-notes.rst | ||
| index.rst | ||
| of_unittest.rst | ||
| overlay-notes.rst | ||
| usage-model.rst | ||
| writing-schema.rst | ||