From 8dec8385bee4f77e9d09a897a01cab8643c78a7d Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Tue, 1 Sep 2020 09:54:08 +0200 Subject: [PATCH] ARM: dts: exynos: Correct S3C RTC bindings in SMDK5410 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 S3C RTC and silences dtbs_check warnings like: arch/arm/boot/dts/exynos5410-smdk5410.dt.yaml: rtc@101e0000: clocks: [[5, 317]] is too short arch/arm/boot/dts/exynos5410-smdk5410.dt.yaml: rtc@101e0000: clock-names: ['rtc'] is too short Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20200901075417.22481-5-krzk@kernel.org --- arch/arm/boot/dts/exynos5410-smdk5410.dts | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm/boot/dts/exynos5410-smdk5410.dts b/arch/arm/boot/dts/exynos5410-smdk5410.dts index 5282b5deca860..2a3ade77a2de3 100644 --- a/arch/arm/boot/dts/exynos5410-smdk5410.dts +++ b/arch/arm/boot/dts/exynos5410-smdk5410.dts @@ -29,6 +29,13 @@ #clock-cells = <0>; }; + pmic_ap_clk: pmic-ap-clk { + /* Workaround for missing PMIC and its clock */ + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <32768>; + }; + firmware@2037000 { compatible = "samsung,secure-firmware"; reg = <0x02037000 0x1000>; @@ -79,6 +86,11 @@ }; }; +&rtc { + clocks = <&clock CLK_RTC>, <&pmic_ap_clk>; + clock-names = "rtc", "rtc_src"; +}; + &sromc { pinctrl-names = "default"; pinctrl-0 = <&srom_ctl>, <&srom_ebi>; -- 2.49.0