Acked-by: Anson Huang <[email protected]> I also saw such issue on i.MX6SLL evk board, and also sent out patch for i.MX6SLL.
Anson Huang Best Regards! > -----Original Message----- > From: Robin Gong > Sent: Monday, June 25, 2018 8:34 PM > To: [email protected]; [email protected]; Fabio Estevam > <[email protected]>; [email protected]; [email protected]; > Anson Huang <[email protected]> > Cc: [email protected]; [email protected]; > [email protected]; dl-linux-imx <[email protected]> > Subject: [PATCH v1] ARM: dts: imx6sl-evk: keep sw4 always on > > SW4 is one power rail for LPDDR2 on i.mx6sl-evk, so it should be kept always > on. > But it's disabled after switch disabled interface implemented in pfuze driver > 'commit 5fe156f1cab4 > ("regulator: pfuze100: add enable/disable for switch")'.Thus, it breaks kernel > bootup. Add 'regulator-always-on' for SW4. > > Signed-off-by: Robin Gong <[email protected]> > --- > arch/arm/boot/dts/imx6sl-evk.dts | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm/boot/dts/imx6sl-evk.dts > b/arch/arm/boot/dts/imx6sl-evk.dts > index 37e792f..798df66 100644 > --- a/arch/arm/boot/dts/imx6sl-evk.dts > +++ b/arch/arm/boot/dts/imx6sl-evk.dts > @@ -199,6 +199,7 @@ > sw4_reg: sw4 { > regulator-min-microvolt = <800000>; > regulator-max-microvolt = <3300000>; > + regulator-always-on; > }; > > swbst_reg: swbst { > -- > 2.7.4
