[v9] clk: qcom: clk-rpmh: Add QCOM RPMh clock driver

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 [v9]
   * clean up recalc function to use integer division.
   * Add back type casting the desc data passed to "getter" function and
   added comment for the same.

 [v8]
   * cleanup code to remove of rpmh_client handle.
   * pass the hw_clks array to the devm_of_clk_add_hw_provider getter function.

 [v7]
   * Addressed comments from Stephen
	- Keep only xo_board as clock parent.
	- Associate divs from SoC specific clock listing to calculate
	   the clock rate.
	- Add back the recalc_rate clock ops to return the clock rate
	   based on the parent rate and div associated with clock.
	- void cast kept to avoid compiler warnings.

 [v6]
   * Addressed comments from Rob
   * Addressed comments from Stephen

 [v5]
   * Addressed comments from Stephen
   * Introduced a new DT property to take clock divs

 [v4]
  * Addressed comments from Stephen

 [v3]
  * Addressed documentation & code review comments from Bjorn
  * Addressed bindings comments from Rob
  * Updated the patch series order for bindings

 [v2]
  * Addressed comments from Stephen
  * Addressed comments from Evan

This patch series adds a driver and device tree documentation binding
for the clock control via Resource Power Manager-hardened (RPMh) on some
Qualcomm Technologies, Inc, SoCs such as SDM845. The clock RPMh driver
would send requests for the RPMh managed clock resources.

The RPMh clock driver depends upon the RPMh driver [1] and command DB
driver [2] which are both still undergoing review.

Thanks,
Taniya

[1]: https://lkml.org/lkml/2018/3/9/979
[2]: https://lkml.org/lkml/2018/3/14/787

Taniya Das (1):
  clk: qcom: clk-rpmh: Add QCOM RPMh clock driver

 drivers/clk/qcom/Kconfig    |   9 ++
 drivers/clk/qcom/Makefile   |   1 +
 drivers/clk/qcom/clk-rpmh.c | 333 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 343 insertions(+)
 create mode 100644 drivers/clk/qcom/clk-rpmh.c

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