* [PATCH] ARM: dts: stm32: Move DHCOR BUCK3 VDD 2V9 adjustment to 1V8 DTSI
@ 2022-05-04 12:50 Marek Vasut
2022-05-05 14:47 ` Patrice CHOTARD
2022-05-06 8:42 ` Patrick DELAUNAY
0 siblings, 2 replies; 6+ messages in thread
From: Marek Vasut @ 2022-05-04 12:50 UTC (permalink / raw)
To: u-boot; +Cc: Marek Vasut, Patrice Chotard, Patrick Delaunay
The Buck3 on DHCOR is used to supply IO voltage. It can output either 3V3
in the default DHCOR configuration, or 2V9 in case of AV96 DHCOR variant
which has extra Empirion DCDC converter in front of the 1V8 IO supply, or
outright 1V8 in case of 1V8 IO DHCOR without the Empirion DCDC converter.
The 2V9 mode in case of AV96 DHCOR variant is used to reduce unnecessarily
high input voltage to the Empirion DCDC converter, so move it into matching
DTSI to stop confusing users.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
---
arch/arm/dts/stm32mp15xx-dhcor-io1v8.dtsi | 5 +++++
arch/arm/dts/stm32mp15xx-dhcor-som.dtsi | 4 ++--
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/arch/arm/dts/stm32mp15xx-dhcor-io1v8.dtsi b/arch/arm/dts/stm32mp15xx-dhcor-io1v8.dtsi
index 75172314d7a..9937b28548c 100644
--- a/arch/arm/dts/stm32mp15xx-dhcor-io1v8.dtsi
+++ b/arch/arm/dts/stm32mp15xx-dhcor-io1v8.dtsi
@@ -18,6 +18,11 @@
};
};
+&vdd {
+ regulator-min-microvolt = <2900000>;
+ regulator-max-microvolt = <2900000>;
+};
+
&pwr_regulators {
vdd-supply = <&vdd_io>;
};
diff --git a/arch/arm/dts/stm32mp15xx-dhcor-som.dtsi b/arch/arm/dts/stm32mp15xx-dhcor-som.dtsi
index 44ecc470858..98033b51479 100644
--- a/arch/arm/dts/stm32mp15xx-dhcor-som.dtsi
+++ b/arch/arm/dts/stm32mp15xx-dhcor-som.dtsi
@@ -77,8 +77,8 @@
vdd: buck3 {
regulator-name = "vdd";
- regulator-min-microvolt = <2900000>;
- regulator-max-microvolt = <2900000>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
regulator-always-on;
regulator-initial-mode = <0>;
regulator-over-current-protection;
--
2.35.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH] ARM: dts: stm32: Move DHCOR BUCK3 VDD 2V9 adjustment to 1V8 DTSI
2022-05-04 12:50 [PATCH] ARM: dts: stm32: Move DHCOR BUCK3 VDD 2V9 adjustment to 1V8 DTSI Marek Vasut
@ 2022-05-05 14:47 ` Patrice CHOTARD
2022-05-06 8:42 ` Patrick DELAUNAY
1 sibling, 0 replies; 6+ messages in thread
From: Patrice CHOTARD @ 2022-05-05 14:47 UTC (permalink / raw)
To: Marek Vasut, u-boot; +Cc: Patrick Delaunay
Hi Marek
On 5/4/22 14:50, Marek Vasut wrote:
> The Buck3 on DHCOR is used to supply IO voltage. It can output either 3V3
> in the default DHCOR configuration, or 2V9 in case of AV96 DHCOR variant
> which has extra Empirion DCDC converter in front of the 1V8 IO supply, or
> outright 1V8 in case of 1V8 IO DHCOR without the Empirion DCDC converter.
>
> The 2V9 mode in case of AV96 DHCOR variant is used to reduce unnecessarily
> high input voltage to the Empirion DCDC converter, so move it into matching
> DTSI to stop confusing users.
>
> Signed-off-by: Marek Vasut <marex@denx.de>
> Cc: Patrice Chotard <patrice.chotard@foss.st.com>
> Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
> ---
> arch/arm/dts/stm32mp15xx-dhcor-io1v8.dtsi | 5 +++++
> arch/arm/dts/stm32mp15xx-dhcor-som.dtsi | 4 ++--
> 2 files changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/dts/stm32mp15xx-dhcor-io1v8.dtsi b/arch/arm/dts/stm32mp15xx-dhcor-io1v8.dtsi
> index 75172314d7a..9937b28548c 100644
> --- a/arch/arm/dts/stm32mp15xx-dhcor-io1v8.dtsi
> +++ b/arch/arm/dts/stm32mp15xx-dhcor-io1v8.dtsi
> @@ -18,6 +18,11 @@
> };
> };
>
> +&vdd {
> + regulator-min-microvolt = <2900000>;
> + regulator-max-microvolt = <2900000>;
> +};
> +
> &pwr_regulators {
> vdd-supply = <&vdd_io>;
> };
> diff --git a/arch/arm/dts/stm32mp15xx-dhcor-som.dtsi b/arch/arm/dts/stm32mp15xx-dhcor-som.dtsi
> index 44ecc470858..98033b51479 100644
> --- a/arch/arm/dts/stm32mp15xx-dhcor-som.dtsi
> +++ b/arch/arm/dts/stm32mp15xx-dhcor-som.dtsi
> @@ -77,8 +77,8 @@
>
> vdd: buck3 {
> regulator-name = "vdd";
> - regulator-min-microvolt = <2900000>;
> - regulator-max-microvolt = <2900000>;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> regulator-always-on;
> regulator-initial-mode = <0>;
> regulator-over-current-protection;
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Thanks
Patrice
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] ARM: dts: stm32: Move DHCOR BUCK3 VDD 2V9 adjustment to 1V8 DTSI
2022-05-04 12:50 [PATCH] ARM: dts: stm32: Move DHCOR BUCK3 VDD 2V9 adjustment to 1V8 DTSI Marek Vasut
2022-05-05 14:47 ` Patrice CHOTARD
@ 2022-05-06 8:42 ` Patrick DELAUNAY
2022-05-10 7:53 ` Patrice CHOTARD
1 sibling, 1 reply; 6+ messages in thread
From: Patrick DELAUNAY @ 2022-05-06 8:42 UTC (permalink / raw)
To: Marek Vasut, u-boot; +Cc: Patrice Chotard
Hi,
On 5/4/22 14:50, Marek Vasut wrote:
> The Buck3 on DHCOR is used to supply IO voltage. It can output either 3V3
> in the default DHCOR configuration, or 2V9 in case of AV96 DHCOR variant
> which has extra Empirion DCDC converter in front of the 1V8 IO supply, or
> outright 1V8 in case of 1V8 IO DHCOR without the Empirion DCDC converter.
>
> The 2V9 mode in case of AV96 DHCOR variant is used to reduce unnecessarily
> high input voltage to the Empirion DCDC converter, so move it into matching
> DTSI to stop confusing users.
>
> Signed-off-by: Marek Vasut <marex@denx.de>
> Cc: Patrice Chotard <patrice.chotard@foss.st.com>
> Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
> ---
> arch/arm/dts/stm32mp15xx-dhcor-io1v8.dtsi | 5 +++++
> arch/arm/dts/stm32mp15xx-dhcor-som.dtsi | 4 ++--
> 2 files changed, 7 insertions(+), 2 deletions(-)
>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Thanks
Patrick
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] ARM: dts: stm32: Move DHCOR BUCK3 VDD 2V9 adjustment to 1V8 DTSI
2022-05-06 8:42 ` Patrick DELAUNAY
@ 2022-05-10 7:53 ` Patrice CHOTARD
0 siblings, 0 replies; 6+ messages in thread
From: Patrice CHOTARD @ 2022-05-10 7:53 UTC (permalink / raw)
To: Patrick DELAUNAY, Marek Vasut, u-boot
On 5/6/22 10:42, Patrick DELAUNAY wrote:
> Hi,
>
> On 5/4/22 14:50, Marek Vasut wrote:
>> The Buck3 on DHCOR is used to supply IO voltage. It can output either 3V3
>> in the default DHCOR configuration, or 2V9 in case of AV96 DHCOR variant
>> which has extra Empirion DCDC converter in front of the 1V8 IO supply, or
>> outright 1V8 in case of 1V8 IO DHCOR without the Empirion DCDC converter.
>>
>> The 2V9 mode in case of AV96 DHCOR variant is used to reduce unnecessarily
>> high input voltage to the Empirion DCDC converter, so move it into matching
>> DTSI to stop confusing users.
>>
>> Signed-off-by: Marek Vasut <marex@denx.de>
>> Cc: Patrice Chotard <patrice.chotard@foss.st.com>
>> Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
>> ---
>> arch/arm/dts/stm32mp15xx-dhcor-io1v8.dtsi | 5 +++++
>> arch/arm/dts/stm32mp15xx-dhcor-som.dtsi | 4 ++--
>> 2 files changed, 7 insertions(+), 2 deletions(-)
>>
>
> Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
>
> Thanks
> Patrick
>
>
>
Applied to u-boot-stm32
Thanks
Patrice
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] ARM: dts: stm32: Move DHCOR BUCK3 VDD 2V9 adjustment to 1V8 DTSI
2022-05-04 12:49 Marek Vasut
@ 2022-06-13 7:42 ` Alexandre TORGUE
0 siblings, 0 replies; 6+ messages in thread
From: Alexandre TORGUE @ 2022-06-13 7:42 UTC (permalink / raw)
To: Marek Vasut, linux-arm-kernel; +Cc: linux-stm32
Hi Marek
On 5/4/22 14:49, Marek Vasut wrote:
> The Buck3 on DHCOR is used to supply IO voltage. It can output either 3V3
> in the default DHCOR configuration, or 2V9 in case of AV96 DHCOR variant
> which has extra Empirion DCDC converter in front of the 1V8 IO supply, or
> outright 1V8 in case of 1V8 IO DHCOR without the Empirion DCDC converter.
>
> The 2V9 mode in case of AV96 DHCOR variant is used to reduce unnecessarily
> high input voltage to the Empirion DCDC converter, so move it into matching
> DTSI to stop confusing users.
>
> Signed-off-by: Marek Vasut <marex@denx.de>
> Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
> Cc: linux-stm32@st-md-mailman.stormreply.com
> To: linux-arm-kernel@lists.infradead.org
> ---
> arch/arm/boot/dts/stm32mp15xx-dhcor-io1v8.dtsi | 5 +++++
> arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi | 4 ++--
> 2 files changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/boot/dts/stm32mp15xx-dhcor-io1v8.dtsi b/arch/arm/boot/dts/stm32mp15xx-dhcor-io1v8.dtsi
> index 75172314d7afd..9937b28548c23 100644
> --- a/arch/arm/boot/dts/stm32mp15xx-dhcor-io1v8.dtsi
> +++ b/arch/arm/boot/dts/stm32mp15xx-dhcor-io1v8.dtsi
> @@ -18,6 +18,11 @@ vdd_io: regulator-buck-io {
> };
> };
>
> +&vdd {
> + regulator-min-microvolt = <2900000>;
> + regulator-max-microvolt = <2900000>;
> +};
> +
> &pwr_regulators {
> vdd-supply = <&vdd_io>;
> };
> diff --git a/arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi b/arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi
> index 6336c3ca0f0e2..134a798ad3f23 100644
> --- a/arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi
> +++ b/arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi
> @@ -119,8 +119,8 @@ vdd_ddr: buck2 {
>
> vdd: buck3 {
> regulator-name = "vdd";
> - regulator-min-microvolt = <2900000>;
> - regulator-max-microvolt = <2900000>;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> regulator-always-on;
> regulator-initial-mode = <0>;
> regulator-over-current-protection;
Applied on stm32-next.
Thanks.
Alex
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] ARM: dts: stm32: Move DHCOR BUCK3 VDD 2V9 adjustment to 1V8 DTSI
@ 2022-05-04 12:49 Marek Vasut
2022-06-13 7:42 ` Alexandre TORGUE
0 siblings, 1 reply; 6+ messages in thread
From: Marek Vasut @ 2022-05-04 12:49 UTC (permalink / raw)
To: linux-arm-kernel; +Cc: Marek Vasut, Alexandre Torgue, linux-stm32
The Buck3 on DHCOR is used to supply IO voltage. It can output either 3V3
in the default DHCOR configuration, or 2V9 in case of AV96 DHCOR variant
which has extra Empirion DCDC converter in front of the 1V8 IO supply, or
outright 1V8 in case of 1V8 IO DHCOR without the Empirion DCDC converter.
The 2V9 mode in case of AV96 DHCOR variant is used to reduce unnecessarily
high input voltage to the Empirion DCDC converter, so move it into matching
DTSI to stop confusing users.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: linux-stm32@st-md-mailman.stormreply.com
To: linux-arm-kernel@lists.infradead.org
---
arch/arm/boot/dts/stm32mp15xx-dhcor-io1v8.dtsi | 5 +++++
arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi | 4 ++--
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/stm32mp15xx-dhcor-io1v8.dtsi b/arch/arm/boot/dts/stm32mp15xx-dhcor-io1v8.dtsi
index 75172314d7afd..9937b28548c23 100644
--- a/arch/arm/boot/dts/stm32mp15xx-dhcor-io1v8.dtsi
+++ b/arch/arm/boot/dts/stm32mp15xx-dhcor-io1v8.dtsi
@@ -18,6 +18,11 @@ vdd_io: regulator-buck-io {
};
};
+&vdd {
+ regulator-min-microvolt = <2900000>;
+ regulator-max-microvolt = <2900000>;
+};
+
&pwr_regulators {
vdd-supply = <&vdd_io>;
};
diff --git a/arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi b/arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi
index 6336c3ca0f0e2..134a798ad3f23 100644
--- a/arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi
+++ b/arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi
@@ -119,8 +119,8 @@ vdd_ddr: buck2 {
vdd: buck3 {
regulator-name = "vdd";
- regulator-min-microvolt = <2900000>;
- regulator-max-microvolt = <2900000>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
regulator-always-on;
regulator-initial-mode = <0>;
regulator-over-current-protection;
--
2.35.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 6+ messages in thread
end of thread, other threads:[~2022-06-13 7:43 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2022-05-04 12:50 [PATCH] ARM: dts: stm32: Move DHCOR BUCK3 VDD 2V9 adjustment to 1V8 DTSI Marek Vasut
2022-05-05 14:47 ` Patrice CHOTARD
2022-05-06 8:42 ` Patrick DELAUNAY
2022-05-10 7:53 ` Patrice CHOTARD
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2022-05-04 12:49 Marek Vasut
2022-06-13 7:42 ` Alexandre TORGUE
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