clk: clocking-wizard: Add static-config clock provider support

 The Xilinx clocking-wizard IP can be used in a static-config mode
 where the hardware is pre-programmed at boot and no dynamic register
 access is required. In that case the driver should skip ioremap,
 read the fixed multiplier/divisor pairs from the device tree, and
 register fixed-factor clocks derived from clk_in1.

 Currently the xlnx,static-config is not functional as it doesnot
 model the output clocks. The series fixes the same.

 This series:
   - adds the xlnx,clk-mul-div binding to carry mul/div pairs
   - makes the reg property optional for static-config nodes
   - skips ioremap when xlnx,static-config is present
   - moves clk_in1 acquisition before the static-config check so it
     is available in both code paths
   - registers fixed-factor output clocks in static-config mode


Shubhrajyoti Datta (8):
  dt-bindings: clock: clocking-wizard: Add xlnx,clk-mul-div property
  dt-bindings: clock: clocking-wizard: Make reg optional for
    static-config
  dt-bindings: clock: clocking-wizard: Make s_axi_aclk optional for
    static-config
  clk: clocking-wizard: Do not map the memory for static-config
  clk: clocking-wizard: Move clk_in1 acquisition before static-config
    check
  clk: clocking-wizard: Add static-config clock provider support
  clk: clocking-wizard: Skip s_axi_aclk for static-config
  clk: clocking-wizard: Use dev_err_probe() when mapping registers

 .../bindings/clock/xlnx,clocking-wizard.yaml  |  50 ++++-
 drivers/clk/xilinx/clk-xlnx-clock-wizard.c    | 181 ++++++++++++++++--
 2 files changed, 205 insertions(+), 26 deletions(-)

-- 
2.34.1