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ARM64: dts: rockchip: configure clock frequency for rk3399 tsadc

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As the rk3399 SoCs requires initial configuration for tsadc clock
frequency. The tsadc can be specified in a device tree node through
assigned-clocks.

The tsadc clock needs 500KHz~800KHz frequency to work on rk3399 SoCs.
We can add the assigned-clock to prevent the firmware
or loader has *not* set the division frequency from the source clock.

Change-Id: Ieb4cd5aad7d299baab20a9fb9d39211fe00896ff
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
This commit is contained in:
Caesar Wang
2016-03-24 21:18:28 +08:00
committed by Huang, Tao
parent 8ef370ed07
commit b12b3cba02
1 changed files with 2 additions and 0 deletions
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2
arch/arm64/boot/dts/rockchip/rk3399.dtsi
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@@ -688,6 +688,8 @@
rockchip,grf = <&grf>;
clocks = <&cru SCLK_TSADC>, <&cru PCLK_TSADC>;
clock-names = "tsadc", "apb_pclk";
assigned-clocks = <&cru SCLK_TSADC>;
assigned-clock-rates = <750000>;
resets = <&cru SRST_TSADC>;
reset-names = "tsadc-apb";
pinctrl-names = "init", "default", "sleep";