From: Nishanth Menon <nm@ti.com>
To: "Tony Lindgren" <tony@atomide.com>,
"Benoît Cousson" <bcousson@baylibre.com>
Cc: <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-omap@vger.kernel.org>,
Tomi Valkeinen <tomi.valkeinen@ti.com>,
Nishanth Menon <nm@ti.com>
Subject: [PATCH] ARM: dts: am57xx-beagle-x15: Update Phy supplies
Date: Thu, 3 Sep 2015 14:23:45 -0500 [thread overview]
Message-ID: <1441308226-26690-1-git-send-email-nm@ti.com> (raw)
Originally, all the SoC PHY rails were supplied by LDO3. However, as a
result of characterization, it was determined that this posed a risk in
extreme load conditions. Hence the PHY rails are split between two
different LDOs. Update the related node as a result
LDO3/VDDA_1V8_PHYA supplies vdda_usb1, vdda_usb2, vdda_sata, vdda_usb3
LDO4/VDDA_1V8_PHYB supplies vdda_pcie1, vdda_pcie0, vdda_hdmi, vdda_pcie
NOTE: We break compatibility with pre-production boards with this change
since, the PMIC LDO4 is disabled at OTP level.
The new configuration is the plan of record and all pre-production
boards are supposed to be replaced with the latest boards matching the
mentioned configuration.
Signed-off-by: Nishanth Menon <nm@ti.com>
---
arch/arm/boot/dts/am57xx-beagle-x15.dts | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15.dts
index 3a05b94f59ed..ede7fb73c717 100644
--- a/arch/arm/boot/dts/am57xx-beagle-x15.dts
+++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts
@@ -432,7 +432,7 @@
};
ldo3_reg: ldo3 {
- /* VDDA_1V8_PHY */
+ /* VDDA_1V8_PHYA */
regulator-name = "ldo3";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
@@ -440,6 +440,15 @@
regulator-boot-on;
};
+ ldo4_reg: ldo4 {
+ /* VDDA_1V8_PHYB */
+ regulator-name = "ldo4";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
ldo9_reg: ldo9 {
/* VDD_RTC */
regulator-name = "ldo9";
@@ -681,7 +690,7 @@
&hdmi {
status = "ok";
- vdda-supply = <&ldo3_reg>;
+ vdda-supply = <&ldo4_reg>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_pins>;
--
1.7.9.5
WARNING: multiple messages have this Message-ID (diff)
From: Nishanth Menon <nm@ti.com>
To: "Tony Lindgren" <tony@atomide.com>,
"Benoît Cousson" <bcousson@baylibre.com>
Cc: linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
linux-omap@vger.kernel.org,
Tomi Valkeinen <tomi.valkeinen@ti.com>,
Nishanth Menon <nm@ti.com>
Subject: [PATCH] ARM: dts: am57xx-beagle-x15: Update Phy supplies
Date: Thu, 3 Sep 2015 14:23:45 -0500 [thread overview]
Message-ID: <1441308226-26690-1-git-send-email-nm@ti.com> (raw)
Originally, all the SoC PHY rails were supplied by LDO3. However, as a
result of characterization, it was determined that this posed a risk in
extreme load conditions. Hence the PHY rails are split between two
different LDOs. Update the related node as a result
LDO3/VDDA_1V8_PHYA supplies vdda_usb1, vdda_usb2, vdda_sata, vdda_usb3
LDO4/VDDA_1V8_PHYB supplies vdda_pcie1, vdda_pcie0, vdda_hdmi, vdda_pcie
NOTE: We break compatibility with pre-production boards with this change
since, the PMIC LDO4 is disabled at OTP level.
The new configuration is the plan of record and all pre-production
boards are supposed to be replaced with the latest boards matching the
mentioned configuration.
Signed-off-by: Nishanth Menon <nm@ti.com>
---
arch/arm/boot/dts/am57xx-beagle-x15.dts | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15.dts
index 3a05b94f59ed..ede7fb73c717 100644
--- a/arch/arm/boot/dts/am57xx-beagle-x15.dts
+++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts
@@ -432,7 +432,7 @@
};
ldo3_reg: ldo3 {
- /* VDDA_1V8_PHY */
+ /* VDDA_1V8_PHYA */
regulator-name = "ldo3";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
@@ -440,6 +440,15 @@
regulator-boot-on;
};
+ ldo4_reg: ldo4 {
+ /* VDDA_1V8_PHYB */
+ regulator-name = "ldo4";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
ldo9_reg: ldo9 {
/* VDD_RTC */
regulator-name = "ldo9";
@@ -681,7 +690,7 @@
&hdmi {
status = "ok";
- vdda-supply = <&ldo3_reg>;
+ vdda-supply = <&ldo4_reg>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_pins>;
--
1.7.9.5
WARNING: multiple messages have this Message-ID (diff)
From: nm@ti.com (Nishanth Menon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: dts: am57xx-beagle-x15: Update Phy supplies
Date: Thu, 3 Sep 2015 14:23:45 -0500 [thread overview]
Message-ID: <1441308226-26690-1-git-send-email-nm@ti.com> (raw)
Originally, all the SoC PHY rails were supplied by LDO3. However, as a
result of characterization, it was determined that this posed a risk in
extreme load conditions. Hence the PHY rails are split between two
different LDOs. Update the related node as a result
LDO3/VDDA_1V8_PHYA supplies vdda_usb1, vdda_usb2, vdda_sata, vdda_usb3
LDO4/VDDA_1V8_PHYB supplies vdda_pcie1, vdda_pcie0, vdda_hdmi, vdda_pcie
NOTE: We break compatibility with pre-production boards with this change
since, the PMIC LDO4 is disabled at OTP level.
The new configuration is the plan of record and all pre-production
boards are supposed to be replaced with the latest boards matching the
mentioned configuration.
Signed-off-by: Nishanth Menon <nm@ti.com>
---
arch/arm/boot/dts/am57xx-beagle-x15.dts | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15.dts
index 3a05b94f59ed..ede7fb73c717 100644
--- a/arch/arm/boot/dts/am57xx-beagle-x15.dts
+++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts
@@ -432,7 +432,7 @@
};
ldo3_reg: ldo3 {
- /* VDDA_1V8_PHY */
+ /* VDDA_1V8_PHYA */
regulator-name = "ldo3";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
@@ -440,6 +440,15 @@
regulator-boot-on;
};
+ ldo4_reg: ldo4 {
+ /* VDDA_1V8_PHYB */
+ regulator-name = "ldo4";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
ldo9_reg: ldo9 {
/* VDD_RTC */
regulator-name = "ldo9";
@@ -681,7 +690,7 @@
&hdmi {
status = "ok";
- vdda-supply = <&ldo3_reg>;
+ vdda-supply = <&ldo4_reg>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_pins>;
--
1.7.9.5
next reply other threads:[~2015-09-03 19:24 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-03 19:23 Nishanth Menon [this message]
2015-09-03 19:23 ` [PATCH] ARM: dts: am57xx-beagle-x15: Update Phy supplies Nishanth Menon
2015-09-03 19:23 ` Nishanth Menon
2015-09-16 15:11 ` Nishanth Menon
2015-09-16 15:11 ` Nishanth Menon
2015-09-16 15:11 ` Nishanth Menon
2015-09-16 23:57 ` Tony Lindgren
2015-09-16 23:57 ` Tony Lindgren
2015-09-16 23:57 ` Tony Lindgren
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