On Thu, May 29, 2025 at 11:53:19AM GMT, David Lechner wrote:
Fix a shortcoming in the bindings that doesn't allow for a separate external clock.
The AXI PWMGEN IP block has a compile option ASYNC_CLK_EN that allows the use of an external clock for the PWM output separate from the AXI clock that runs the peripheral.
This was missed in the original bindings and so users were writing dts files where the one and only clock specified would be the external clock, if there was one, incorrectly missing the separate AXI clock.
The correct bindings are that the AXI clock is always required and the external clock is optional (must be given only when HDL compile option ASYNC_CLK_EN=1).
Cc: stable@vger.kernel.org Fixes: 1edf2c2a2841 ("dt-bindings: pwm: Add AXI PWM generator") Signed-off-by: David Lechner dlechner@baylibre.com
Documentation/devicetree/bindings/pwm/adi,axi-pwmgen.yaml | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-)
Reviewed-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org
Best regards, Krzysztof