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Bug#900799: linux-image-arm64: dts: rockchip: correct voltage selector Firefly-RK3399



Package: linux-image-arm64
Version: 4.16.12-1
Severity: normal
Tags: patch

Please, add this patch to the Debian kernel patches until it is added
upstream. Cf.
https://lkml.org/lkml/2018/6/4/781

Without this patch the Firefly-RK3399 board boot process hangs after these
lines:

   fan53555-regulator 0-0040: FAN53555 Option[8] Rev[1] Detected!
   fan53555-reg: supplied by vcc_sys
   vcc1v8_s3: supplied by vcc_1v8

Blacklisting driver fan53555 allows booting.

The device tree uses a value of fcs,suspend-voltage-selector different to
any other board.

Changing this setting to the usual value is sufficient to enable booting.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
 arch/arm64/boot/dts/rockchip/rk3399-firefly.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts b/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
index 4f28628aa091..50940ef844a7 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
@@ -458,7 +458,7 @@
 	vdd_cpu_b: regulator@40 {
 		compatible = "silergy,syr827";
 		reg = <0x40>;
-		fcs,suspend-voltage-selector = <0>;
+		fcs,suspend-voltage-selector = <1>;
 		regulator-name = "vdd_cpu_b";
 		regulator-min-microvolt = <712500>;
 		regulator-max-microvolt = <1500000>;
-- 
2.17.1


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