[PATCH 10/25] ARM: dts: s5pv210: add RTC 32 KHz clock in Aquilla
From: Krzysztof Kozlowski <krzk@kernel.org>
Date: 2020-09-07 16:24:23
Also in:
linux-devicetree, linux-iio, linux-samsung-soc, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
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> --- arch/arm/boot/dts/s5pv210-aquila.dts | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/arch/arm/boot/dts/s5pv210-aquila.dts b/arch/arm/boot/dts/s5pv210-aquila.dts
index 14969b6529e8..eaeb0e921aaa 100644
--- a/arch/arm/boot/dts/s5pv210-aquila.dts
+++ b/arch/arm/boot/dts/s5pv210-aquila.dts@@ -32,6 +32,13 @@ 0x40000000 0x18000000>; }; + pmic_ap_clk: clock-0 { + /* Workaround for missing clock on PMIC */ + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <32768>; + }; + regulators { compatible = "simple-bus"; #address-cells = <1>;
@@ -228,6 +235,11 @@ regulator-always-on; }; + ap32khz_reg: EN32KHz-AP { + regulator-name = "32KHz AP"; + regulator-always-on; + }; + vichg_reg: ENVICHG { regulator-name = "VICHG"; };
@@ -326,6 +338,11 @@ status = "okay"; }; +&rtc { + clocks = <&clocks CLK_RTC>, <&pmic_ap_clk>; + clock-names = "rtc", "rtc_src"; +}; + &sdhci0 { bus-width = <4>; non-removable;
--
2.17.1
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