Re: [PATCH v5 7/8] arm64: dts: qcom: ipq5332: add support for the NSSCC

From: Dmitry Baryshkov
Date: Thu Aug 29 2024 - 06:29:54 EST


On Thu, Aug 29, 2024 at 01:58:29PM GMT, Varadarajan Narayanan wrote:
> From: Kathiravan Thirumoorthy <quic_kathirav@xxxxxxxxxxx>
>
> Describe the NSS clock controller node and it's relevant external
> clocks.

Who generates these clocks? 300 MHz crystal?

>
> Signed-off-by: Kathiravan Thirumoorthy <quic_kathirav@xxxxxxxxxxx>
> Signed-off-by: Varadarajan Narayanan <quic_varada@xxxxxxxxxxx>
> ---
> v5: Remove #power-domain-cells
> Add #interconnect-cells
> ---
> arch/arm64/boot/dts/qcom/ipq5332.dtsi | 28 +++++++++++++++++++++++++++
> 1 file changed, 28 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/ipq5332.dtsi b/arch/arm64/boot/dts/qcom/ipq5332.dtsi
> index 71328b223531..1cc614de845c 100644
> --- a/arch/arm64/boot/dts/qcom/ipq5332.dtsi
> +++ b/arch/arm64/boot/dts/qcom/ipq5332.dtsi
> @@ -16,6 +16,18 @@ / {
> #size-cells = <2>;
>
> clocks {
> + cmn_pll_nss_200m_clk: cmn-pll-nss-200m-clk {
> + compatible = "fixed-clock";
> + clock-frequency = <200000000>;
> + #clock-cells = <0>;
> + };
> +
> + cmn_pll_nss_300m_clk: cmn-pll-nss-300m-clk {
> + compatible = "fixed-clock";
> + clock-frequency = <300000000>;
> + #clock-cells = <0>;
> + };
> +
> sleep_clk: sleep-clk {
> compatible = "fixed-clock";
> #clock-cells = <0>;
> @@ -479,6 +491,22 @@ frame@b128000 {
> status = "disabled";
> };
> };
> +
> + nsscc: clock-controller@39b00000 {
> + compatible = "qcom,ipq5332-nsscc";
> + reg = <0x39b00000 0x80000>;
> + clocks = <&cmn_pll_nss_200m_clk>,
> + <&cmn_pll_nss_300m_clk>,
> + <&gcc GPLL0_OUT_AUX>,
> + <0>,
> + <0>,
> + <0>,
> + <0>,
> + <&xo_board>;
> + #clock-cells = <1>;
> + #reset-cells = <1>;
> + #interconnect-cells = <1>;
> + };
> };
>
> timer {
> --
> 2.34.1
>

--
With best wishes
Dmitry