[PATCH 15/25] ARM: dts: s5pv210: add RTC 32 KHz clock in Torbreck
From: Krzysztof Kozlowski <krzk@kernel.org>
Date: 2020-09-07 16:19:39
Also in:
linux-devicetree, linux-iio, linux-samsung-soc, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
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@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
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