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[PATCH v3 1/8] arm64: dts: qcom: 8x16: Add fixed rate on-board oscillator

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Add the on-board XO oscillator. This patch prepares for adding support
for RPM controlled clocks. In order to do smooth transition and support
both cases (RPM clock driver is enabled or nor), we first move the XO to
the DT and change the GCC fixed-rate root clock to a dummy pass-through
clock. Then if the RPM driver is enabled, we set the parent of the XO
clock in the RPM clock driver to xo_board.
The advantage of doing so is that the rate of the XO clock is not hard-
coded in the GCC driver anymore, but comes from the board layout, so
that is why it should be in DT anyway.

Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
---
 arch/arm64/boot/dts/qcom/msm8916.dtsi |    9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index 8748fcca70f4..355a2acea796 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -80,6 +80,15 @@
 			     <GIC_PPI 1 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
 	};
 
+	clocks {
+		xo_board: xo_board {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <19200000>;
+			clock-output-names = "xo_board";
+		};
+	};
+
 	soc: soc {
 		#address-cells = <1>;
 		#size-cells = <1>;
--
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Thread

[PATCH v3 0/8] Add initial support for RPM clocks Georgi Djakov <georgi.djakov@linaro.org> - 2015-10-20 19:00 +0200
  [PATCH v3 2/8] clk: qcom: msm8916: Set the parent of xo to xo_board Georgi Djakov <georgi.djakov@linaro.org> - 2015-10-20 19:00 +0200
    Re: [PATCH v3 2/8] clk: qcom: msm8916: Set the parent of xo to  xo_board Stephen Boyd <sboyd@codeaurora.org> - 2015-10-26 23:50 +0100
  [PATCH v3 8/8] clk: qcom: msm8916: Remove hard-coded sleep_clk_src Georgi Djakov <georgi.djakov@linaro.org> - 2015-10-20 19:00 +0200
  [PATCH v3 6/8] clk: qcom: Add RPM clock controller driver Georgi Djakov <georgi.djakov@linaro.org> - 2015-10-20 19:00 +0200
    Re: [PATCH v3 6/8] clk: qcom: Add RPM clock controller driver Stephen Boyd <sboyd@codeaurora.org> - 2015-10-28 00:30 +0100
  [PATCH v3 5/8] clk: qcom: Add support for RPM Clocks Georgi Djakov <georgi.djakov@linaro.org> - 2015-10-20 19:10 +0200
    Re: [PATCH v3 5/8] clk: qcom: Add support for RPM Clocks Stephen Boyd <sboyd@codeaurora.org> - 2015-10-28 00:20 +0100
  [PATCH v3 1/8] arm64: dts: qcom: 8x16: Add fixed rate on-board oscillator Georgi Djakov <georgi.djakov@linaro.org> - 2015-10-20 19:10 +0200
    Re: [PATCH v3 1/8] arm64: dts: qcom: 8x16: Add fixed rate on-board  oscillator Andy Gross <agross@codeaurora.org> - 2015-10-22 05:00 +0200
    Re: [PATCH v3 1/8] arm64: dts: qcom: 8x16: Add fixed rate on-board  oscillator Stephen Boyd <sboyd@codeaurora.org> - 2015-10-28 00:20 +0100
  [PATCH v3 4/8] arm64: dts: qcom: 8x16: Add fixed rate sleep clock oscillator Georgi Djakov <georgi.djakov@linaro.org> - 2015-10-20 19:10 +0200
  [PATCH v3 3/8] clk: qcom: msm8916: Ignore sleep_clk_src registration errors Georgi Djakov <georgi.djakov@linaro.org> - 2015-10-20 19:10 +0200
    Re: [PATCH v3 3/8] clk: qcom: msm8916: Ignore sleep_clk_src  registration errors Stephen Boyd <sboyd@codeaurora.org> - 2015-10-26 23:50 +0100

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