ARM: dts: exynos: Use S2MPS11 clock in S3C RTC in SMDK5420

Use the 32 kHz clock from S2MPS11 PMIC in the S3C RTC node. Except
making the S3C RTC working, this also fixes dtbs_check warnings:

  arch/arm/boot/dts/exynos5420-smdk5420.dt.yaml: rtc@101e0000: clocks: [[2, 317]] is too short
  arch/arm/boot/dts/exynos5420-smdk5420.dt.yaml: rtc@101e0000: clock-names: ['rtc'] is too short

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200901075417.22481-14-krzk@kernel.org

diff --git a/arch/arm/boot/dts/exynos5420-smdk5420.dts b/arch/arm/boot/dts/exynos5420-smdk5420.dts
index 83fa800fa1eb9b43f0788080a80d2ae2fcfd73a0..4e49d8095b2927d8d31849916d1bee1637824429 100644 (file)
--- a/arch/arm/boot/dts/exynos5420-smdk5420.dts
+++ b/arch/arm/boot/dts/exynos5420-smdk5420.dts
@@ -9,6 +9,7 @@
 /dts-v1/;
 #include "exynos5420.dtsi"
 #include "exynos5420-cpus.dtsi"
+#include <dt-bindings/clock/samsung,s2mps11.h>
 #include <dt-bindings/gpio/gpio.h>
 
 / {
@@ -401,6 +402,8 @@
 
 &rtc {
        status = "okay";
+       clocks = <&clock CLK_RTC>, <&s2mps11_osc S2MPS11_CLK_AP>;
+       clock-names = "rtc", "rtc_src";
 };
 
 &usbdrd_phy0 {