arm64: dts: qcom: msm8976: Add and provide xo clk to rpmcc

In order for consumers of RPMCC XO clock to probe successfully
their parent needs to be feed with reference clock to obtain proper rate,
add fixed xo-board clock and supply it to rpmcc to make consumers happy.
Frequency setting is left per board basis just like on other recent trees.

Fixes: 0484d3ce0902 ("arm64: dts: qcom: Add DTS for MSM8976 and MSM8956 SoCs")
Fixes: ff7f6d34ca07 ("arm64: dts: qcom: Add support for SONY Xperia X/X Compact")
Signed-off-by: Adam Skladowski <a39.skl@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
[bjorn: Squashed the two patches]
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230302123051.12440-1-a39.skl@gmail.com
Link: https://lore.kernel.org/r/20230302123051.12440-2-a39.skl@gmail.com

diff --git a/arch/arm64/boot/dts/qcom/msm8956-sony-xperia-loire.dtsi b/arch/arm64/boot/dts/qcom/msm8956-sony-xperia-loire.dtsi
index 67baced639c9139da4c7afd62635e2acac7d6499..085d79542e1bbc35cb88e0abe1fc1f5f737b4b9f 100644 (file)
--- a/arch/arm64/boot/dts/qcom/msm8956-sony-xperia-loire.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8956-sony-xperia-loire.dtsi
@@ -280,3 +280,7 @@
        vdda3p3-supply = <&pm8950_l13>;
        status = "okay";
 };
+
+&xo_board {
+       clock-frequency = <19200000>;
+};

diff --git a/arch/arm64/boot/dts/qcom/msm8976.dtsi b/arch/arm64/boot/dts/qcom/msm8976.dtsi
index 712f80fc865c49b0153f22235a6c90482083b16e..05929d7a1d23ca4e99400ef4580ba56cdd6fcee4 100644 (file)
--- a/arch/arm64/boot/dts/qcom/msm8976.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8976.dtsi
@@ -20,6 +20,13 @@
 
        chosen { };
 
+       clocks {
+               xo_board: xo-board {
+                       compatible = "fixed-clock";
+                       #clock-cells = <0>;
+               };
+       };
+
        cpus {
                #address-cells = <1>;
                #size-cells = <0>;
@@ -351,6 +358,8 @@
 
                                rpmcc: clock-controller {
                                        compatible = "qcom,rpmcc-msm8976", "qcom,rpmcc";
+                                       clocks = <&xo_board>;
+                                       clock-names = "xo";
                                        #clock-cells = <1>;
                                };