From: Marek Vasut [mailto:marex@denx.de] Sent: Monday, April 26, 2021 12:23 PM
Per schematic, both PU and SOC regulator are supplied from LTC3676 SW1 via VDDSOC_IN rail, add the PU input. Both VDD1P1, VDD2P5 are supplied from LTC3676 SW2 via VDDHIGH_IN rail, add both inputs.
While no instability or problems are currently observed, the regulators should be fully described in DT and that description should fully match the hardware, else this might lead to unforseen issues later. Fix this.
Fixes: 52c7a088badd ("ARM: dts: imx6q: Add support for the DHCOM iMX6 SoM and PDK2") Reviewed-by: Fabio Estevam festevam@gmail.com Signed-off-by: Marek Vasut marex@denx.de Cc: Christoph Niedermaier cniedermaier@dh-electronics.com Cc: Fabio Estevam festevam@gmail.com Cc: Ludwig Zenz lzenz@dh-electronics.com Cc: NXP Linux Team linux-imx@nxp.com Cc: Shawn Guo shawnguo@kernel.org Cc: stable@vger.kernel.org
V2: Amend commit message V3: Reinstate the missing SoB line, add RB
arch/arm/boot/dts/imx6q-dhcom-som.dtsi | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/arch/arm/boot/dts/imx6q-dhcom-som.dtsi b/arch/arm/boot/dts/imx6q-dhcom-som.dtsi index 236fc205c389..d0768ae429fa 100644 --- a/arch/arm/boot/dts/imx6q-dhcom-som.dtsi +++ b/arch/arm/boot/dts/imx6q-dhcom-som.dtsi @@ -406,6 +406,18 @@ ®_soc { vin-supply = <&sw1_reg>; };
+®_pu {
vin-supply = <&sw1_reg>;+};
+®_vdd1p1 {
vin-supply = <&sw2_reg>;+};
+®_vdd2p5 {
vin-supply = <&sw2_reg>;+};
&uart1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_uart1>; -- 2.30.2
Reviewed-by: Christoph Niedermaier cniedermaier@dh-electronics.com