* [PATCH v2] ARM: dts: AM43XX: Remove min and max voltage values for dcdc3
@ 2017-06-02 9:24 ` Keerthy
0 siblings, 0 replies; 6+ messages in thread
From: Keerthy @ 2017-06-02 9:24 UTC (permalink / raw)
To: tony
Cc: devicetree, j-keerthy, linux-kernel, t-kristo, robh+dt,
linux-omap, linux-arm-kernel
dcdc3 supplies to DDR on AM43x series. When we set both
min and max values to the same value. The regulator framework
sets that particular voltage. This is bad as we are changing
the ddr voltage when executing from ddr. Hence remove the min and
max values. The ddr supply voltage shall be set from bootloader
when not executing from ddr and not while executing from kernel.
The previous discussion can be found here:
http://www.spinics.net/lists/devicetree/msg56399.html
Signed-off-by: Keerthy <j-keerthy@ti.com>
---
Changes in v2:
* Corrected $subject
arch/arm/boot/dts/am437x-gp-evm.dts | 2 --
arch/arm/boot/dts/am437x-sk-evm.dts | 2 --
arch/arm/boot/dts/am43x-epos-evm.dts | 2 --
3 files changed, 6 deletions(-)
diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts
index 397e98b..29a538e 100644
--- a/arch/arm/boot/dts/am437x-gp-evm.dts
+++ b/arch/arm/boot/dts/am437x-gp-evm.dts
@@ -549,8 +549,6 @@
dcdc3: regulator-dcdc3 {
regulator-name = "vdcdc3";
- regulator-min-microvolt = <1500000>;
- regulator-max-microvolt = <1500000>;
regulator-boot-on;
regulator-always-on;
regulator-state-mem {
diff --git a/arch/arm/boot/dts/am437x-sk-evm.dts b/arch/arm/boot/dts/am437x-sk-evm.dts
index a62e158..2c6bf06 100644
--- a/arch/arm/boot/dts/am437x-sk-evm.dts
+++ b/arch/arm/boot/dts/am437x-sk-evm.dts
@@ -451,8 +451,6 @@
dcdc3: regulator-dcdc3 {
regulator-name = "vdds_ddr";
- regulator-min-microvolt = <1500000>;
- regulator-max-microvolt = <1500000>;
regulator-boot-on;
regulator-always-on;
regulator-state-mem {
diff --git a/arch/arm/boot/dts/am43x-epos-evm.dts b/arch/arm/boot/dts/am43x-epos-evm.dts
index f6648ab..54f40f3 100644
--- a/arch/arm/boot/dts/am43x-epos-evm.dts
+++ b/arch/arm/boot/dts/am43x-epos-evm.dts
@@ -442,8 +442,6 @@
dcdc3: regulator-dcdc3 {
regulator-name = "vdcdc3";
- regulator-min-microvolt = <1500000>;
- regulator-max-microvolt = <1500000>;
regulator-boot-on;
regulator-always-on;
};
--
1.9.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH v2] ARM: dts: AM43XX: Remove min and max voltage values for dcdc3
@ 2017-06-02 9:24 ` Keerthy
0 siblings, 0 replies; 6+ messages in thread
From: Keerthy @ 2017-06-02 9:24 UTC (permalink / raw)
To: linux-arm-kernel
dcdc3 supplies to DDR on AM43x series. When we set both
min and max values to the same value. The regulator framework
sets that particular voltage. This is bad as we are changing
the ddr voltage when executing from ddr. Hence remove the min and
max values. The ddr supply voltage shall be set from bootloader
when not executing from ddr and not while executing from kernel.
The previous discussion can be found here:
http://www.spinics.net/lists/devicetree/msg56399.html
Signed-off-by: Keerthy <j-keerthy@ti.com>
---
Changes in v2:
* Corrected $subject
arch/arm/boot/dts/am437x-gp-evm.dts | 2 --
arch/arm/boot/dts/am437x-sk-evm.dts | 2 --
arch/arm/boot/dts/am43x-epos-evm.dts | 2 --
3 files changed, 6 deletions(-)
diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts
index 397e98b..29a538e 100644
--- a/arch/arm/boot/dts/am437x-gp-evm.dts
+++ b/arch/arm/boot/dts/am437x-gp-evm.dts
@@ -549,8 +549,6 @@
dcdc3: regulator-dcdc3 {
regulator-name = "vdcdc3";
- regulator-min-microvolt = <1500000>;
- regulator-max-microvolt = <1500000>;
regulator-boot-on;
regulator-always-on;
regulator-state-mem {
diff --git a/arch/arm/boot/dts/am437x-sk-evm.dts b/arch/arm/boot/dts/am437x-sk-evm.dts
index a62e158..2c6bf06 100644
--- a/arch/arm/boot/dts/am437x-sk-evm.dts
+++ b/arch/arm/boot/dts/am437x-sk-evm.dts
@@ -451,8 +451,6 @@
dcdc3: regulator-dcdc3 {
regulator-name = "vdds_ddr";
- regulator-min-microvolt = <1500000>;
- regulator-max-microvolt = <1500000>;
regulator-boot-on;
regulator-always-on;
regulator-state-mem {
diff --git a/arch/arm/boot/dts/am43x-epos-evm.dts b/arch/arm/boot/dts/am43x-epos-evm.dts
index f6648ab..54f40f3 100644
--- a/arch/arm/boot/dts/am43x-epos-evm.dts
+++ b/arch/arm/boot/dts/am43x-epos-evm.dts
@@ -442,8 +442,6 @@
dcdc3: regulator-dcdc3 {
regulator-name = "vdcdc3";
- regulator-min-microvolt = <1500000>;
- regulator-max-microvolt = <1500000>;
regulator-boot-on;
regulator-always-on;
};
--
1.9.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH v2] ARM: dts: AM43XX: Remove min and max voltage values for dcdc3
@ 2017-06-02 9:24 ` Keerthy
0 siblings, 0 replies; 6+ messages in thread
From: Keerthy @ 2017-06-02 9:24 UTC (permalink / raw)
To: tony
Cc: j-keerthy, robh+dt, linux-omap, devicetree, linux-arm-kernel,
linux-kernel, t-kristo
dcdc3 supplies to DDR on AM43x series. When we set both
min and max values to the same value. The regulator framework
sets that particular voltage. This is bad as we are changing
the ddr voltage when executing from ddr. Hence remove the min and
max values. The ddr supply voltage shall be set from bootloader
when not executing from ddr and not while executing from kernel.
The previous discussion can be found here:
http://www.spinics.net/lists/devicetree/msg56399.html
Signed-off-by: Keerthy <j-keerthy@ti.com>
---
Changes in v2:
* Corrected $subject
arch/arm/boot/dts/am437x-gp-evm.dts | 2 --
arch/arm/boot/dts/am437x-sk-evm.dts | 2 --
arch/arm/boot/dts/am43x-epos-evm.dts | 2 --
3 files changed, 6 deletions(-)
diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts
index 397e98b..29a538e 100644
--- a/arch/arm/boot/dts/am437x-gp-evm.dts
+++ b/arch/arm/boot/dts/am437x-gp-evm.dts
@@ -549,8 +549,6 @@
dcdc3: regulator-dcdc3 {
regulator-name = "vdcdc3";
- regulator-min-microvolt = <1500000>;
- regulator-max-microvolt = <1500000>;
regulator-boot-on;
regulator-always-on;
regulator-state-mem {
diff --git a/arch/arm/boot/dts/am437x-sk-evm.dts b/arch/arm/boot/dts/am437x-sk-evm.dts
index a62e158..2c6bf06 100644
--- a/arch/arm/boot/dts/am437x-sk-evm.dts
+++ b/arch/arm/boot/dts/am437x-sk-evm.dts
@@ -451,8 +451,6 @@
dcdc3: regulator-dcdc3 {
regulator-name = "vdds_ddr";
- regulator-min-microvolt = <1500000>;
- regulator-max-microvolt = <1500000>;
regulator-boot-on;
regulator-always-on;
regulator-state-mem {
diff --git a/arch/arm/boot/dts/am43x-epos-evm.dts b/arch/arm/boot/dts/am43x-epos-evm.dts
index f6648ab..54f40f3 100644
--- a/arch/arm/boot/dts/am43x-epos-evm.dts
+++ b/arch/arm/boot/dts/am43x-epos-evm.dts
@@ -442,8 +442,6 @@
dcdc3: regulator-dcdc3 {
regulator-name = "vdcdc3";
- regulator-min-microvolt = <1500000>;
- regulator-max-microvolt = <1500000>;
regulator-boot-on;
regulator-always-on;
};
--
1.9.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v2] ARM: dts: AM43XX: Remove min and max voltage values for dcdc3
2017-06-02 9:24 ` Keerthy
(?)
@ 2017-06-06 7:32 ` Tony Lindgren
-1 siblings, 0 replies; 6+ messages in thread
From: Tony Lindgren @ 2017-06-06 7:32 UTC (permalink / raw)
To: Keerthy
Cc: robh+dt-DgEjT+Ai2ygdnm+yROfE0A, linux-omap-u79uwXL29TY76Z2rM5mHXA,
devicetree-u79uwXL29TY76Z2rM5mHXA,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
linux-kernel-u79uwXL29TY76Z2rM5mHXA, t-kristo-l0cyMroinI0
* Keerthy <j-keerthy-l0cyMroinI0@public.gmane.org> [170602 02:27]:
> dcdc3 supplies to DDR on AM43x series. When we set both
> min and max values to the same value. The regulator framework
> sets that particular voltage. This is bad as we are changing
> the ddr voltage when executing from ddr. Hence remove the min and
> max values. The ddr supply voltage shall be set from bootloader
> when not executing from ddr and not while executing from kernel.
>
> The previous discussion can be found here:
>
> http://www.spinics.net/lists/devicetree/msg56399.html
>
> Signed-off-by: Keerthy <j-keerthy-l0cyMroinI0@public.gmane.org>
Applying into omap-for-v4.13/dt thanks.
Tony
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v2] ARM: dts: AM43XX: Remove min and max voltage values for dcdc3
@ 2017-06-06 7:32 ` Tony Lindgren
0 siblings, 0 replies; 6+ messages in thread
From: Tony Lindgren @ 2017-06-06 7:32 UTC (permalink / raw)
To: linux-arm-kernel
* Keerthy <j-keerthy@ti.com> [170602 02:27]:
> dcdc3 supplies to DDR on AM43x series. When we set both
> min and max values to the same value. The regulator framework
> sets that particular voltage. This is bad as we are changing
> the ddr voltage when executing from ddr. Hence remove the min and
> max values. The ddr supply voltage shall be set from bootloader
> when not executing from ddr and not while executing from kernel.
>
> The previous discussion can be found here:
>
> http://www.spinics.net/lists/devicetree/msg56399.html
>
> Signed-off-by: Keerthy <j-keerthy@ti.com>
Applying into omap-for-v4.13/dt thanks.
Tony
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v2] ARM: dts: AM43XX: Remove min and max voltage values for dcdc3
@ 2017-06-06 7:32 ` Tony Lindgren
0 siblings, 0 replies; 6+ messages in thread
From: Tony Lindgren @ 2017-06-06 7:32 UTC (permalink / raw)
To: Keerthy
Cc: robh+dt, linux-omap, devicetree, linux-arm-kernel, linux-kernel,
t-kristo
* Keerthy <j-keerthy@ti.com> [170602 02:27]:
> dcdc3 supplies to DDR on AM43x series. When we set both
> min and max values to the same value. The regulator framework
> sets that particular voltage. This is bad as we are changing
> the ddr voltage when executing from ddr. Hence remove the min and
> max values. The ddr supply voltage shall be set from bootloader
> when not executing from ddr and not while executing from kernel.
>
> The previous discussion can be found here:
>
> http://www.spinics.net/lists/devicetree/msg56399.html
>
> Signed-off-by: Keerthy <j-keerthy@ti.com>
Applying into omap-for-v4.13/dt thanks.
Tony
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2017-06-06 7:32 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2017-06-02 9:24 [PATCH v2] ARM: dts: AM43XX: Remove min and max voltage values for dcdc3 Keerthy
2017-06-02 9:24 ` Keerthy
2017-06-02 9:24 ` Keerthy
[not found] ` <1496395441-29526-1-git-send-email-j-keerthy-l0cyMroinI0@public.gmane.org>
2017-06-06 7:32 ` Tony Lindgren
2017-06-06 7:32 ` Tony Lindgren
2017-06-06 7:32 ` Tony Lindgren
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.