[PATCH 15/25] ARM: dts: s5pv210: add RTC 32 KHz clock in Torbreck

[Krzysztof Kozlowski]

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 <k...@kernel.org>
---
 arch/arm/boot/dts/s5pv210-torbreck.dts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/boot/dts/s5pv210-torbreck.dts 
b/arch/arm/boot/dts/s5pv210-torbreck.dts
index cd25e72ccd84..e18259737684 100644
--- a/arch/arm/boot/dts/s5pv210-torbreck.dts
+++ b/arch/arm/boot/dts/s5pv210-torbreck.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";
 };
 
 &sdhci0 {
-- 
2.17.1