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ARM: dts: s5pv210: add RTC 32 KHz clock in SMDKC110

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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 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>
Link: https://lore.kernel.org/r/20200907161141.31034-14-krzk@kernel.org
This commit is contained in:
Krzysztof Kozlowski 2020-09-07 18:11:29 +02:00
parent ebb105b59c
commit 37dea4fa98
1 changed files with 9 additions and 0 deletions
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9
arch/arm/boot/dts/s5pv210-smdkc110.dts
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@ -30,6 +30,13 @@
device_type = "memory";
reg = <0x20000000 0x20000000>;
};
pmic_ap_clk: clock-0 {
/* Workaround for missing PMIC and its clock */
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <32768>;
};
};
&xusbxti {
@ -54,6 +61,8 @@
&rtc {
status = "okay";
clocks = <&clocks CLK_RTC>, <&pmic_ap_clk>;
clock-names = "rtc", "rtc_src";
};
&i2c0 {