Add initial support for RPM clocks

This patchset adds initial support for the clocks controlled by
the RPM (Resource Power Manager) processor on Qualcomm platforms.
It depends on Bjorn's Qualcomm SMD & RPM patches, that are now in
linux-next: https://lkml.org/lkml/2015/7/27/1125

The first patch implements the RPM clock operations, which are
using a shared memory for sending requests to the RPM processor.
The second patch adds the support of RPM clocks on the MSM8916
platform.

Changes since v1 (https://lkml.org/lkml/2015/7/9/257):
* Changed the driver name to clk-smd-rpm, also build it only
  when it is needed - suggested by Srini and Bjorn.
* More detailed binding example.
* Minor changes.

Georgi Djakov (2):
  clk: qcom: Add support for RPM Clocks
  clk: qcom: Add MSM8916 RPM clock driver

 .../devicetree/bindings/clock/qcom,rpmcc.txt       |   35 ++++
 drivers/clk/qcom/Kconfig                           |    4 +
 drivers/clk/qcom/Makefile                          |    2 +
 drivers/clk/qcom/clk-smd-rpm.c                     |  165 ++++++++++++++++
 drivers/clk/qcom/clk-smd-rpm.h                     |  139 ++++++++++++++
 drivers/clk/qcom/gcc-msm8916.c                     |   13 --
 drivers/clk/qcom/rpmcc-msm8916.c                   |  196 ++++++++++++++++++++
 include/dt-bindings/clock/qcom,rpmcc-msm8916.h     |   44 +++++
 8 files changed, 585 insertions(+), 13 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/clock/qcom,rpmcc.txt
 create mode 100644 drivers/clk/qcom/clk-smd-rpm.c
 create mode 100644 drivers/clk/qcom/clk-smd-rpm.h
 create mode 100644 drivers/clk/qcom/rpmcc-msm8916.c
 create mode 100644 include/dt-bindings/clock/qcom,rpmcc-msm8916.h

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