qcom clock updates

Here are some bug fixes and updates to qcom clock driver. Mostly focused on running more drivers on msm8974 based devices and some fixes found in the process.

Stephen Boyd (7):
clk: qcom: Fix clk_rcg2_is_enabled() check
clk: qcom: Fix mmcc-8974's PLL configurations
clk: qcom: Return highest rate when round_rate() exceeds plan
clk: qcom: Support display RCG clocks
clk: qcom: Properly support display clocks on msm8974
clk: qcom: Support msm8974pro global clock control hardware
clk: qcom: Return error pointers for unimplemented clocks

 .../devicetree/bindings/clock/qcom,gcc.txt         |   2 +
 drivers/clk/qcom/clk-rcg.h                         |   3 +
 drivers/clk/qcom/clk-rcg2.c                        | 304 +++++++++++++++++++--
 drivers/clk/qcom/common.c                          |   4 +-
 drivers/clk/qcom/gcc-msm8974.c                     | 130 ++++++++-
 drivers/clk/qcom/mmcc-msm8974.c                    | 118 ++++----
 include/dt-bindings/clock/qcom,gcc-msm8974.h       |   4 +
 7 files changed, 485 insertions(+), 80 deletions(-)

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