From 5ea3939cf51f3da7cd8b97ae16ab5cee246f8e5c Mon Sep 17 00:00:00 2001 From: Douglas Anderson Date: Wed, 9 May 2018 13:05:28 -0700 Subject: arm64: dts: sdm845: Fix xo_board clock name and speed The RPMh clock driver assumes that the xo_board clock is named "xo_board", not "xo-board". Add a "clock-output-names" property to the device tree to get the right name. Also add the proper speed for the xo-clock as 38400000. This is internally divided in RPMh clock driver to get "bi_tcxo" at 19200000. After this change the clock tree in /sys/kernel/debug/clk/clk_summary looks much better. NOTES: - Technically you could argue that this clock could belong in board .dts files, not in the SoC one. However at the moment it's believed that 100% of sdm845 boards will have an external clock at 38.4. It can always be moved later if necessary. - We could rename the "xo-board" device tree node to "xo_board" to achieve the same effect as this patch. Presumably device-tree folks would rather keep node names using dashes though. - We could change the RPMh clock driver to use a dash to achieve the same effect as this patch, but all other clocks in the clock tree use underscores. It seems silly to change just this one. Fixes: 7bafa643647f ("arm64: dts: sdm845: Add minimal dts/dtsi files for sdm845 SoC and MTP") Signed-off-by: Douglas Anderson Signed-off-by: Andy Gross --- arch/arm64/boot/dts/qcom/sdm845.dtsi | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch/arm64/boot') diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi index 71e45c14abc1..eef08d4feb95 100644 --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi @@ -158,7 +158,8 @@ xo_board: xo-board { compatible = "fixed-clock"; #clock-cells = <0>; - clock-frequency = <19200000>; + clock-frequency = <38400000>; + clock-output-names = "xo_board"; }; sleep_clk: sleep-clk { -- cgit v1.2.3