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ARM: dts: s5pv210: add RTC 32 KHz clock in SMDKV210

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[ Upstream commit 7260b36345 ]

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/20200907161141.31034-15-krzk@kernel.org
Stable-dep-of: 982655cb0e ("ARM: dts: samsung: s5pv210-smdkv210: correct ethernet reg addresses (split)")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Krzysztof Kozlowski 2020-09-07 18:11:30 +02:00 committed by Greg Kroah-Hartman
parent fc4fc6aaa7
commit 420f9a2380
1 changed files with 9 additions and 0 deletions
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9
arch/arm/boot/dts/s5pv210-smdkv210.dts
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@ -31,6 +31,13 @@ memory@20000000 {
reg = <0x20000000 0x40000000>;
};
pmic_ap_clk: clock-0 {
/* Workaround for missing PMIC and its clock */
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <32768>;
};
ethernet@18000000 {
compatible = "davicom,dm9000";
reg = <0xA8000000 0x2 0xA8000002 0x2>;
@ -147,6 +154,8 @@ &uart3 {
&rtc {
status = "okay";
clocks = <&clocks CLK_RTC>, <&pmic_ap_clk>;
clock-names = "rtc", "rtc_src";
};
&sdhci0 {