The S3C RTC requires 32768 Hz clock as input which is provided by PMIC.
However the PMIC is not described in DTS at all so at least add
a workaround to model its clock with a fixed-clock.
This fixes dtbs_check warnings:
rtc@e2800000: clocks: [[2, 145]] is too short
rtc@e2800000: clock-names: ['rtc'] is too short
Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
---
arch/arm/boot/dts/s5pv210-smdkc110.dts | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/arm/boot/dts/s5pv210-smdkc110.dts b/arch/arm/boot/dts/s5pv210-smdkc110.dts
index e5aec6c526fb..0c623b78af72 100644
--- a/arch/arm/boot/dts/s5pv210-smdkc110.dts
+++ b/arch/arm/boot/dts/s5pv210-smdkc110.dts
@@ -30,6 +30,13 @@
device_type = "memory";
reg = <0x20000000 0x20000000>;
};
+
+ pmic_ap_clk: clock-0 {
+ /* Workaround for missing PMIC and its clock */
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <32768>;
+ };
};
&xusbxti {
@@ -54,6 +61,8 @@
&rtc {
status = "okay";
+ clocks = <&clocks CLK_RTC>, <&pmic_ap_clk>;
+ clock-names = "rtc", "rtc_src";
};
&i2c0 {
--
2.17.1
