[PATCH 0/3] clk: si5351: add option to adjust PLL without glitches

Alvin Šipraga posted 3 patches 2 years, 4 months ago
There is a newer version of this series
.../bindings/clock/silabs,si5351.txt          | 126 --------
.../bindings/clock/silabs,si5351.yaml         | 270 ++++++++++++++++++
drivers/clk/clk-si5351.c                      |  47 ++-
include/linux/platform_data/si5351.h          |   2 +
4 files changed, 316 insertions(+), 129 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/clock/silabs,si5351.txt
create mode 100644 Documentation/devicetree/bindings/clock/silabs,si5351.yaml
[PATCH 0/3] clk: si5351: add option to adjust PLL without glitches
Posted by Alvin Šipraga 2 years, 4 months ago
From: Alvin Šipraga <alsi@bang-olufsen.dk>

This series intends to address a problem I had when using the Si5351A as
a runtime adjustable audio bit clock. The basic issue is that the driver
in its current form unconditionally resets the PLL whenever adjusting
its rate. But this reset causes an unwanted ~1.4 ms LOW signal glitch in
the clock output.

As a remedy, a new property is added to control the reset behaviour of
the PLLs more precisely. In the process I also converted the bindings to
YAML.

Alvin Šipraga (3):
  dt-bindings: clock: si5351: convert to yaml
  dt-bindings: clock: si5351: add PLL reset mode property
  clk: si5351: allow PLLs to be adjusted without reset

 .../bindings/clock/silabs,si5351.txt          | 126 --------
 .../bindings/clock/silabs,si5351.yaml         | 270 ++++++++++++++++++
 drivers/clk/clk-si5351.c                      |  47 ++-
 include/linux/platform_data/si5351.h          |   2 +
 4 files changed, 316 insertions(+), 129 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/clock/silabs,si5351.txt
 create mode 100644 Documentation/devicetree/bindings/clock/silabs,si5351.yaml

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2.41.0