dt-bindings: soc: mobileye: set `#clock-cells = <1>` for all compatibles

2024-11-14T22:52:26Z

Some compatibles expose a single clock. For those, we used to let them using `#clock-cells = <0>` (ie <&olb> reference rather than <&olb 0>). Switch away from that: enforce a cell for all compatibles. This is more straight forward, and avoids devicetree changes whenever a compatible goes from exposing a single clock to multiple ones. Also, dt-bindings get simpler. *This is an ABI break*. Change it while EyeQ5 platform support is at its infancy, without any user. More clocks might hide in each OLB as some registers are still unknown. Signed-off-by: Théo Lebrun Link: https://lore.kernel.org/r/20241106-mbly-clk-v2-1-84cfefb3f485@bootlin.com Reviewed-by: Krzysztof Kozlowski Reviewed-by: Rob Herring (Arm) Signed-off-by: Stephen Boyd

dt-bindings: soc: mobileye: add EyeQ OLB system controller

2024-07-03T15:15:47Z

Add documentation to describe the "Other Logic Block" system-controller. It deals with three platforms: EyeQ5, EyeQ6L and EyeQ6H. First two have a single instance, whereas EyeQ6H has seven named instances. Features provided are: - Clocks, children to main crystal. Some PLLs and divider clocks. - Resets. Some instances DO NOT have reset. - Pinctrl. Only EyeQ5 has such feature. Those are NOT the only features exposed in OLB system-controllers! Many individual registers, related to IP block integration, can be found. Additional features will be exposed over time. We simplify devicetree phandles to OLB in two ways: - Compatibles exposing a single clock do not ask for a index argument. This means we use EyeQ6H OLB south (it has four clocks): clocks = <&olb_south EQ6HC_SOUTH_PLL_PER>; But use EyeQ6H OLB east (it has one clock): clocks = <&olb_east>; - Compatibles exposing a single reset domain do not ask for a domain index, only a reset index. This means we use EyeQ5 OLB (it has three domains): resets = <&olb 0 10>; But use EyeQ6H west reset (it has one domain): resets = <&olb_west 3>; About pinctrl subnodes: all pins have two functionality, either GPIO or something-else. The latter is pin dependent, we express constraints using many if-then. Reviewed-by: Rob Herring (Arm) Signed-off-by: Théo Lebrun Signed-off-by: Thomas Bogendoerfer

pm24.git/Documentation/devicetree/bindings/soc/mobileye, branch master

dt-bindings: soc: mobileye: set `#clock-cells = <1>` for all compatibles

dt-bindings: soc: mobileye: add EyeQ OLB system controller