| From 78e085790394eba360888a3bd9939678038f3bbb Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| Date: Mon, 7 Sep 2020 18:11:27 +0200 |
| Subject: ARM: dts: s5pv210: add RTC 32 KHz clock in Aries family |
| |
| From: Krzysztof Kozlowski <krzk@kernel.org> |
| |
| [ Upstream commit 086c4498b0cc87fdb09188f3da7056e898814948 ] |
| |
| 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 <krzk@kernel.org> |
| Tested-by: Jonathan Bakker <xc-racer2@live.ca> |
| Link: https://lore.kernel.org/r/20200907161141.31034-12-krzk@kernel.org |
| Signed-off-by: Sasha Levin <sashal@kernel.org> |
| --- |
| arch/arm/boot/dts/s5pv210-aries.dtsi | 12 ++++++++++++ |
| 1 file changed, 12 insertions(+) |
| |
| diff --git a/arch/arm/boot/dts/s5pv210-aries.dtsi b/arch/arm/boot/dts/s5pv210-aries.dtsi |
| index a3f83f668ce14..8a98b35b9b0de 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>; |
| -- |
| 2.27.0 |
| |
