The GPIO block on the very legacy IXP4xx GPIO can provide a generated clock output on GPIO 14 and GPIO 15. This provides a straight-forward solution with a flag for each clock output. More complicated solutions are thinkable, but I deemed them overdesigned for this legacy SoC. Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx> --- Changes in v2: - Fixed formatting pipe | in bindings - Fixed som blank lines in bindings - When we will just blank out the clock register settings, don't spend time reading the initial value. - Link to v1: https://lore.kernel.org/r/20230921-ixp4xx-gpio-clocks-v1-0-574942bf944a@xxxxxxxxxx --- Linus Walleij (2): gpio: Rewrite IXP4xx GPIO bindings in schema gpio: ixp4xx: Handle clock output on pin 14 and 15 .../devicetree/bindings/gpio/intel,ixp4xx-gpio.txt | 38 ----------- .../bindings/gpio/intel,ixp4xx-gpio.yaml | 73 ++++++++++++++++++++++ MAINTAINERS | 2 +- drivers/gpio/gpio-ixp4xx.c | 40 +++++++++++- 4 files changed, 112 insertions(+), 41 deletions(-) --- base-commit: 0bb80ecc33a8fb5a682236443c1e740d5c917d1d change-id: 20230921-ixp4xx-gpio-clocks-7e82289f4bb3 Best regards, -- Linus Walleij <linus.walleij@xxxxxxxxxx>
