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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 <krzk@kernel.org>
Tested-by: Jonathan Bakker <xc-racer2@live.ca>
Link: https://lore.kernel.org/r/20200907161141.31034-12-krzk@kernel.org
This commit is contained in:
Krzysztof Kozlowski 2020-09-07 18:11:27 +02:00
parent e59cb2fb3b
commit 086c4498b0
1 changed files with 12 additions and 0 deletions
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12
arch/arm/boot/dts/s5pv210-aries.dtsi
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@ -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>;