[PATCH 32/33] ARM: dts: exynos: Correct S3C RTC bindings in Tiny4412
From: Krzysztof Kozlowski <krzk@kernel.org>
Date: 2020-08-30 14:05:30
Also in:
linux-devicetree, 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 fixed-clock. This fixes S3C RTC and silences dtbs_check warnings like: arch/arm/boot/dts/exynos4412-tiny4412.dt.yaml: rtc@10070000: clocks: [[7, 346]] is too short arch/arm/boot/dts/exynos4412-tiny4412.dt.yaml: rtc@10070000: clock-names: ['rtc'] is too short Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> --- arch/arm/boot/dts/exynos4412-tiny4412.dts | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/arch/arm/boot/dts/exynos4412-tiny4412.dts b/arch/arm/boot/dts/exynos4412-tiny4412.dts
index 7512c86e634e..017b26108bb0 100644
--- a/arch/arm/boot/dts/exynos4412-tiny4412.dts
+++ b/arch/arm/boot/dts/exynos4412-tiny4412.dts@@ -65,6 +65,13 @@ compatible = "samsung,clock-xusbxti"; clock-frequency = <24000000>; }; + + pmic_ap_clk: pmic-ap-clk { + /* Workaround for missing clock on PMIC */ + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <32768>; + }; }; panel {
@@ -110,6 +117,8 @@ &rtc { status = "okay"; + clocks = <&clock CLK_RTC>, <&pmic_ap_clk>; + clock-names = "rtc", "rtc_src"; }; &sdhci_2 {
--
2.17.1
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