[PATCH v2] arm64: dts: renesas: r8a779g3: Invert microSD voltage selector on Retronix R-Car V4H Sparrow Hawk EVTB1

Marek Vasut marek.vasut+renesas at mailbox.org
Wed Aug 13 23:26:27 CEST 2025


Invert the polarity of microSD voltage selector on Retronix R-Car V4H
Sparrow Hawk board. The voltage selector was not populated on prototype
EVTA1 boards, and is implemented slightly different on EVTB1 boards. As
the EVTA1 boards are from a limited run and generally not available,
update the DT to make it compatible with EVTB1 microSD voltage selector.

Signed-off-by: Marek Vasut <marek.vasut+renesas at mailbox.org>
---
Cc: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
Cc: Tom Rini <trini at konsulko.com>
---
V2: Move DT change to arch/arm/dts/r8a779g3-sparrow-hawk-u-boot.dtsi
    until the same fix lands in mainline Linux
---
 arch/arm/dts/r8a779g3-sparrow-hawk-u-boot.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/dts/r8a779g3-sparrow-hawk-u-boot.dtsi b/arch/arm/dts/r8a779g3-sparrow-hawk-u-boot.dtsi
index 3210360ebe2..b5f226f2f2a 100644
--- a/arch/arm/dts/r8a779g3-sparrow-hawk-u-boot.dtsi
+++ b/arch/arm/dts/r8a779g3-sparrow-hawk-u-boot.dtsi
@@ -53,3 +53,7 @@
 		spi-rx-bus-width = <1>;
 	};
 };
+
+&vcc_sdhi {
+	states = <1800000 0>, <3300000 1>;
+};
-- 
2.47.2



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