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

[ Upstream commit 4a2c9b9e1215c557c17a48e3fabe9b1674c1d608 ]

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
Signed-off-by: Sasha Levin <sashal@kernel.org>

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 05dcb30b07795e316b77c1527e6a96029e0fc807..c125ebcdd1e47ba3873d6f077d114850a4209533 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>;
                                };