From 7260b363457a22b8723d5cbc43fee67397896d07 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Mon, 7 Sep 2020 18:11:30 +0200 Subject: [PATCH] ARM: dts: s5pv210: add RTC 32 KHz clock in SMDKV210 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 Link: https://lore.kernel.org/r/20200907161141.31034-15-krzk@kernel.org --- arch/arm/boot/dts/s5pv210-smdkv210.dts | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm/boot/dts/s5pv210-smdkv210.dts b/arch/arm/boot/dts/s5pv210-smdkv210.dts index 84b38f185199..1f20622da719 100644 --- a/arch/arm/boot/dts/s5pv210-smdkv210.dts +++ b/arch/arm/boot/dts/s5pv210-smdkv210.dts @@ -31,6 +31,13 @@ reg = <0x20000000 0x40000000>; }; + pmic_ap_clk: clock-0 { + /* Workaround for missing PMIC and its clock */ + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <32768>; + }; + ethernet@18000000 { compatible = "davicom,dm9000"; reg = <0xA8000000 0x2 0xA8000002 0x2>; @@ -147,6 +154,8 @@ &rtc { status = "okay"; + clocks = <&clocks CLK_RTC>, <&pmic_ap_clk>; + clock-names = "rtc", "rtc_src"; }; &sdhci0 { -- 2.17.1