From: Krzysztof Kozlowski Date: Mon, 7 Sep 2020 16:11:27 +0000 (+0200) Subject: ARM: dts: s5pv210: add RTC 32 KHz clock in Aries family X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=086c4498b0cc87fdb09188f3da7056e898814948;p=linux.git ARM: dts: s5pv210: add RTC 32 KHz clock in Aries family The S3C RTC requires 32768 Hz clock as input which is provided by PMIC. However there is no such clock provider but rather a regulator driver which registers the clock as a regulator. This is an old driver which will not be updated so add a workaround - a fixed-clock to fill missing clock phandle reference in S3C RTC. 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 Tested-by: Jonathan Bakker Link: https://lore.kernel.org/r/20200907161141.31034-12-krzk@kernel.org --- diff --git a/arch/arm/boot/dts/s5pv210-aries.dtsi b/arch/arm/boot/dts/s5pv210-aries.dtsi index 6ba23562da464..86c3b26fd21e3 100644 --- a/arch/arm/boot/dts/s5pv210-aries.dtsi +++ b/arch/arm/boot/dts/s5pv210-aries.dtsi @@ -47,6 +47,13 @@ }; }; + pmic_ap_clk: clock-0 { + /* Workaround for missing clock on PMIC */ + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <32768>; + }; + bt_codec: bt_sco { compatible = "linux,bt-sco"; #sound-dai-cells = <0>; @@ -825,6 +832,11 @@ samsung,pwm-outputs = <1>; }; +&rtc { + clocks = <&clocks CLK_RTC>, <&pmic_ap_clk>; + clock-names = "rtc", "rtc_src"; +}; + &sdhci1 { #address-cells = <1>; #size-cells = <0>;