DCDC1 regulator powers many different subsystems. While some of them can
work at 3.0 V, some of them can not. For example, VCC-HDMI can only work
between 3.24 V and 3.36 V. According to OS images provided by the board
manufacturer this regulator should be set to 3.3 V.
Set DCDC1 and DCDC1SW to 3.3 V in order to fix this.
Fixes: da7ac948fa93 ("ARM: dts: sun8i: Add board dts file for Banana Pi M2
Ultra")
Signed-off-by: Jernej Skrabec <[email protected]>
---
arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts b/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
index 42d62d1ba1dc..ea15073f0c79 100644
--- a/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
+++ b/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
@@ -223,16 +223,16 @@ ®_aldo3 {
};
®_dc1sw {
- regulator-min-microvolt = <3000000>;
- regulator-max-microvolt = <3000000>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
regulator-name = "vcc-gmac-phy";
};
®_dcdc1 {
regulator-always-on;
- regulator-min-microvolt = <3000000>;
- regulator-max-microvolt = <3000000>;
- regulator-name = "vcc-3v0";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-3v3";
};
®_dcdc2 {
--
2.28.0
On 24/8/20 16:36, Jernej Skrabec wrote:
> DCDC1 regulator powers many different subsystems. While some of them can
> work at 3.0 V, some of them can not. For example, VCC-HDMI can only work
> between 3.24 V and 3.36 V. According to OS images provided by the board
> manufacturer this regulator should be set to 3.3 V.
>
> Set DCDC1 and DCDC1SW to 3.3 V in order to fix this.
>
> Fixes: da7ac948fa93 ("ARM: dts: sun8i: Add board dts file for Banana Pi M2
> Ultra")
> Signed-off-by: Jernej Skrabec <[email protected]>
> ---
> arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts b/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
> index 42d62d1ba1dc..ea15073f0c79 100644
> --- a/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
> +++ b/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
> @@ -223,16 +223,16 @@ ®_aldo3 {
> };
>
> ®_dc1sw {
> - regulator-min-microvolt = <3000000>;
> - regulator-max-microvolt = <3000000>;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> regulator-name = "vcc-gmac-phy";
> };
>
> ®_dcdc1 {
> regulator-always-on;
> - regulator-min-microvolt = <3000000>;
> - regulator-max-microvolt = <3000000>;
> - regulator-name = "vcc-3v0";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "vcc-3v3";
> };
>
> ®_dcdc2 {
Should this be done also for the bananapi-m2-berry?, it is basically the
same device
sun8i-v40-bananapi-m2-berry.dts
Pablo
Dne ponedeljek, 24. avgust 2020 ob 22:54:01 CEST je Pablo Sebasti?n Greco
napisal(a):
> On 24/8/20 16:36, Jernej Skrabec wrote:
> > DCDC1 regulator powers many different subsystems. While some of them can
> > work at 3.0 V, some of them can not. For example, VCC-HDMI can only work
> > between 3.24 V and 3.36 V. According to OS images provided by the board
> > manufacturer this regulator should be set to 3.3 V.
> >
> > Set DCDC1 and DCDC1SW to 3.3 V in order to fix this.
> >
> > Fixes: da7ac948fa93 ("ARM: dts: sun8i: Add board dts file for Banana Pi M2
> >
> > Ultra")
> >
> > Signed-off-by: Jernej Skrabec <[email protected]>
> > ---
> >
> > arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts | 10 +++++-----
> > 1 file changed, 5 insertions(+), 5 deletions(-)
> >
> > diff --git a/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
> > b/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts index
> > 42d62d1ba1dc..ea15073f0c79 100644
> > --- a/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
> > +++ b/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
> > @@ -223,16 +223,16 @@ ®_aldo3 {
> >
> > };
> >
> > ®_dc1sw {
> >
> > - regulator-min-microvolt = <3000000>;
> > - regulator-max-microvolt = <3000000>;
> > + regulator-min-microvolt = <3300000>;
> > + regulator-max-microvolt = <3300000>;
> >
> > regulator-name = "vcc-gmac-phy";
> >
> > };
> >
> > ®_dcdc1 {
> >
> > regulator-always-on;
> >
> > - regulator-min-microvolt = <3000000>;
> > - regulator-max-microvolt = <3000000>;
> > - regulator-name = "vcc-3v0";
> > + regulator-min-microvolt = <3300000>;
> > + regulator-max-microvolt = <3300000>;
> > + regulator-name = "vcc-3v3";
> >
> > };
> >
> > ®_dcdc2 {
>
> Should this be done also for the bananapi-m2-berry?, it is basically the
> same device
> sun8i-v40-bananapi-m2-berry.dts
I think so but I would rather not do that without testing and I don't have
that board.
Best regards,
Jernej
On Mon, Aug 24, 2020 at 09:36:49PM +0200, Jernej Skrabec wrote:
> DCDC1 regulator powers many different subsystems. While some of them can
> work at 3.0 V, some of them can not. For example, VCC-HDMI can only work
> between 3.24 V and 3.36 V. According to OS images provided by the board
> manufacturer this regulator should be set to 3.3 V.
>
> Set DCDC1 and DCDC1SW to 3.3 V in order to fix this.
>
> Fixes: da7ac948fa93 ("ARM: dts: sun8i: Add board dts file for Banana Pi M2
> Ultra")
> Signed-off-by: Jernej Skrabec <[email protected]>
Applied, thanks
Maxime