[PATCH 1/2] arm64: dts: ti: k3-am62: Add general purpose timers for am62

[Vignesh Raghavendra]

On 14/09/22 1:12 pm, Tony Lindgren wrote:
> There are 8 general purpose timers on am65 that can be used for things
> like PWM using pwm-omap-dmtimer driver. There are also additional four
> timers in the MCU domain that do not have interrupts routable for Linux.
> 
> We configure the timers with the 25 MHz input clock by default as the
> 32.768 kHz clock may not be wired on the device. We leave the MCU domain
> timers clock mux unconfigured, and mark the MCU domain timers reserved.
> The MCU domain timers are likely reserved by the software for the ESM
> module.
> 
> Compared to am65, the timers on am62 do not have a dedicated IO mux for
> the timers. On am62, the timers have different interrupts, clocks and
> power domains compared to am65, and the MCU timers are at a different
> IO address.
> 
> Cc: Keerthy <j-keerthy at ti.com>
> Cc: Nishanth Menon <nm at ti.com>
> Cc: Vignesh Raghavendra <vigneshr at ti.com>
> Signed-off-by: Tony Lindgren <tony at atomide.com>
> ---
>  arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 97 ++++++++++++++++++++++++
>  arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi  | 45 +++++++++++
>  2 files changed, 142 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
> --- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
> @@ -186,6 +186,103 @@ main_pmx0: pinctrl at f4000 {
>  		pinctrl-single,function-mask = <0xffffffff>;
>  	};
>  
> +	main_timer0: timer at 2400000 {
> +		compatible = "ti,am654-timer";
> +		reg = <0x00 0x2400000 0x00 0x400>;
> +		interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
> +		clocks = <&k3_clks 36 2>;
> +		clock-names = "fck";
> +		assigned-clocks = <&k3_clks 36 2>;
> +		assigned-clock-parents = <&k3_clks 36 3>;
> +		power-domains = <&k3_pds 36 TI_SCI_PD_EXCLUSIVE>;

I end up with

make dtbs_check

+/workdir/arch/arm64/boot/dts/ti/k3-am625-sk.dtb: timer at 4800000: 'power-domains' does not match any of the regexes: 'pinctrl-[0-9]+'
+/workdir/arch/arm64/boot/dts/ti/k3-am625-sk.dtb: timer at 4810000: 'power-domains' does not match any of the regexes: 'pinctrl-[0-9]+'
+/workdir/arch/arm64/boot/dts/ti/k3-am625-sk.dtb: timer at 4820000: 'power-domains' does not match any of the regexes: 'pinctrl-[0-9]+'
+/workdir/arch/arm64/boot/dts/ti/k3-am625-sk.dtb: timer at 4830000: 'power-domains' does not match any of the regexes: 'pinctrl-[0-9]+'

Looks like schema does not describe power-domains :(

[...]

Regards
Vignesh