* [PATCH] ARM: dts: imx53: enable PMIC RTC on imx53-qsrb
@ 2025-10-11 6:02 Alexander Kurz
2025-10-27 5:50 ` Shawn Guo
0 siblings, 1 reply; 2+ messages in thread
From: Alexander Kurz @ 2025-10-11 6:02 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Shawn Guo,
Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam, devicetree,
linux-input
Cc: linux-kernel, Alexander Kurz
The RTC inside mc34708 is supported by RTC_DRV_MC13XXX since v3.6-rc1.
Enable the PMIC RTC on the imx53-qsrb. Without a battery the RTC may be
powered via the micro-USB connector when main 5V power is not available.
Signed-off-by: Alexander Kurz <akurz@blala.de>
---
arch/arm/boot/dts/nxp/imx/imx53-qsrb.dts | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/nxp/imx/imx53-qsrb.dts b/arch/arm/boot/dts/nxp/imx/imx53-qsrb.dts
index 2f06ad61a766..6938ad6dbc2c 100644
--- a/arch/arm/boot/dts/nxp/imx/imx53-qsrb.dts
+++ b/arch/arm/boot/dts/nxp/imx/imx53-qsrb.dts
@@ -28,6 +28,7 @@ pmic: mc34708@8 {
reg = <0x08>;
interrupt-parent = <&gpio5>;
interrupts = <23 IRQ_TYPE_LEVEL_HIGH>;
+ fsl,mc13xxx-uses-rtc;
regulators {
sw1_reg: sw1a {
regulator-name = "SW1";
--
2.39.5
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH] ARM: dts: imx53: enable PMIC RTC on imx53-qsrb
2025-10-11 6:02 [PATCH] ARM: dts: imx53: enable PMIC RTC on imx53-qsrb Alexander Kurz
@ 2025-10-27 5:50 ` Shawn Guo
0 siblings, 0 replies; 2+ messages in thread
From: Shawn Guo @ 2025-10-27 5:50 UTC (permalink / raw)
To: Alexander Kurz
Cc: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Shawn Guo,
Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam, devicetree,
linux-input, linux-kernel
On Sat, Oct 11, 2025 at 06:02:51AM +0000, Alexander Kurz wrote:
> The RTC inside mc34708 is supported by RTC_DRV_MC13XXX since v3.6-rc1.
> Enable the PMIC RTC on the imx53-qsrb. Without a battery the RTC may be
> powered via the micro-USB connector when main 5V power is not available.
>
> Signed-off-by: Alexander Kurz <akurz@blala.de>
Applied, thanks!
^ permalink raw reply [flat|nested] 2+ messages in thread
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