This is a note to let you know that I've just added the patch titled
ARM: dts: microchip: sama5d27_wlsom1_ek: Add no-1-8-v property to sdmmc0 node
to the 6.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm-dts-microchip-sama5d27_wlsom1_ek-add-no-1-8-v-pr.patch
and it can be found in the queue-6.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 4e43d3c8105c361bad89f7c78c26311ed8f25feb
Author: Cristian Birsan <cristian.birsan@xxxxxxxxxxxxx>
Date: Tue Nov 19 18:01:07 2024 +0200
ARM: dts: microchip: sama5d27_wlsom1_ek: Add no-1-8-v property to sdmmc0 node
[ Upstream commit 4d9e5965df04c0adf260c3009c55d5fe240f7286 ]
Add no-1-8-v property to sdmmc0 node to keep VDDSDMMC power rail at 3.3V.
This property will stop the LDO regulator from switching to 1.8V when the
MMC core detects an UHS SD Card. VDDSDMMC power rail is used by all the
SDMMC interface pins in GPIO mode (PA0 - PA13).
On this board, PA10 is used as GPIO to enable the power switch controlling
USB Vbus for the USB Host. The change is needed to fix the PA10 voltage
level to 3.3V instead of 1.8V.
Fixes: 5d4c3cfb63fe ("ARM: dts: at91: sama5d27_wlsom1: add SAMA5D27 wlsom1 and wlsom1-ek")
Suggested-by: Mihai Sain <mihai.sain@xxxxxxxxxxxxx>
Signed-off-by: Cristian Birsan <cristian.birsan@xxxxxxxxxxxxx>
Tested-by: Andrei Simion <andrei.simion@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20241119160107.598411-3-cristian.birsan@xxxxxxxxxxxxx
Signed-off-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1_ek.dts b/arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1_ek.dts
index 15239834d886e..35a933eec5738 100644
--- a/arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1_ek.dts
+++ b/arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1_ek.dts
@@ -197,6 +197,7 @@ qspi1_flash: flash@0 {
&sdmmc0 {
bus-width = <4>;
+ no-1-8-v;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_sdmmc0_default>;
status = "okay";
