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ARM: dts: exynos: Correct S3C RTC bindings in SMDK5410

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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 <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200901075417.22481-5-krzk@kernel.org
This commit is contained in:
Krzysztof Kozlowski 2020-09-01 09:54:08 +02:00
parent 2495ddd2d1
commit 8dec8385be
1 changed files with 12 additions and 0 deletions
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12
arch/arm/boot/dts/exynos5410-smdk5410.dts
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@ -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>;