[v4,00/18] Support spread spectrum clocking for i.MX8N PLLs
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Message ID 20241201174639.742000-1-dario.binacchi@amarulasolutions.com
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  • Support spread spectrum clocking for i.MX8N PLLs
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Dario Binacchi Dec. 1, 2024, 5:46 p.m. UTC 
The series adds support for spread spectrum clocking for i.MX8MN
PLLs (audio, video and DRAM). It has been tested for the video PLL on
a board using i.MX8MN.
The patches added in version 4, such as the dt-bindings and the driver
for anatop, were inspired by the extensive email exchange from version 3:
https://lore.kernel.org/imx/20241106090549.3684963-1-dario.binacchi@amarulasolutions.com/

The series added spectrum spread support for the imx8mn platform only,
but in case it was merged, confirming that the directives and suggestions
made by the maintainers were correctly understood and implemented, I will
extend this support to the imx8mm and imx8mp platforms as well.

(no changes since v1)

Dario Binacchi (18):
  clk: imx8mm: rename video_pll1 to video_pll
  clk: imx8mp: rename video_pll1 to video_pll
  dt-bindings: clock: imx8m-anatop: define clocks/clock-names
  arm64: dts: imx8mm: add anatop clocks
  arm64: dts: imx8mn: add anatop clocks
  arm64: dts: imx8mp: add anatop clocks
  arm64: dts: imx8mq: add anatop clocks
  dt-bindings: clock: imx8mm: add binding definitions for anatop
  dt-bindings: clock: imx8mn: add binding definitions for anatop
  dt-bindings: clock: imx8mp: add binding definitions for anatop
  clk: imx: add hw API imx8m_anatop_get_clk_hw
  clk: imx: add support for i.MX8MN anatop clock driver
  dt-bindings: clock: imx8m-clock: support spread spectrum clocking
  arm64: dts: imx8mm: add PLLs to clock controller module (ccm)
  arm64: dts: imx8mn: add PLLs to clock controller module (ccm)
  arm64: dts: imx8mp: add PLLs to clock controller module (ccm)
  clk: imx: pll14xx: support spread spectrum clock generation
  clk: imx8mn: support spread spectrum clock generation

 .../bindings/clock/fsl,imx8m-anatop.yaml      |  53 +++-
 .../bindings/clock/imx8m-clock.yaml           |  77 ++++-
 arch/arm64/boot/dts/freescale/imx8mm.dtsi     |  11 +-
 arch/arm64/boot/dts/freescale/imx8mn.dtsi     |  11 +-
 arch/arm64/boot/dts/freescale/imx8mp.dtsi     |  11 +-
 arch/arm64/boot/dts/freescale/imx8mq.dtsi     |   2 +
 drivers/clk/imx/Makefile                      |   2 +-
 drivers/clk/imx/clk-imx8mm.c                  | 102 +++----
 drivers/clk/imx/clk-imx8mn-anatop.c           | 281 ++++++++++++++++++
 drivers/clk/imx/clk-imx8mn.c                  | 188 ++++++------
 drivers/clk/imx/clk-imx8mp.c                  | 118 ++++----
 drivers/clk/imx/clk-pll14xx.c                 | 127 ++++++++
 drivers/clk/imx/clk.c                         |  26 ++
 drivers/clk/imx/clk.h                         |  22 ++
 include/dt-bindings/clock/imx8mm-clock.h      |  78 ++++-
 include/dt-bindings/clock/imx8mn-clock.h      |  67 +++++
 include/dt-bindings/clock/imx8mp-clock.h      |  79 ++++-
 17 files changed, 1022 insertions(+), 233 deletions(-)
 create mode 100644 drivers/clk/imx/clk-imx8mn-anatop.c