From 1716af24998a27f9509791e07d3dcef00538e4c2 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Sun, 30 Aug 2020 15:51:58 +0200 Subject: ARM: dts: exynos: Correct S3C RTC bindings in SMDK4412 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 and silence dtbs_check warnings like: arch/arm/boot/dts/exynos4412-smdk4412.dt.yaml: rtc@10070000: clocks: [[7, 346]] is too short arch/arm/boot/dts/exynos4412-smdk4412.dt.yaml: rtc@10070000: clock-names: ['rtc'] is too short Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20200830135200.24304-31-krzk@kernel.org --- arch/arm/boot/dts/exynos4412-smdk4412.dts | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'arch/arm/boot/dts/exynos4412-smdk4412.dts') diff --git a/arch/arm/boot/dts/exynos4412-smdk4412.dts b/arch/arm/boot/dts/exynos4412-smdk4412.dts index 3667fa048e0f..49971203a8aa 100644 --- a/arch/arm/boot/dts/exynos4412-smdk4412.dts +++ b/arch/arm/boot/dts/exynos4412-smdk4412.dts @@ -37,6 +37,13 @@ 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>; + }; }; }; @@ -142,6 +149,11 @@ }; }; +&rtc { + clocks = <&clock CLK_RTC>, <&pmic_ap_clk>; + clock-names = "rtc", "rtc_src"; +}; + &sdhci_2 { bus-width = <4>; pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_bus4 &sd2_cd>; -- cgit v1.2.3-59-g8ed1b