[PATCH 0/2] fix cm-t54 serial console power supply

[PATCH 0/2] fix cm-t54 serial console power supply

[Dmitry Lifshitz]

Essential fix of CM-T54 serial console power supply and
minor update of SBC-T54 DT model property.

Dmitry Lifshitz (2):
  ARM: dts: cm-t54: fix serial console power supply.
  ARM: dts: sbc-t54: fix model property

 arch/arm/boot/dts/omap5-cm-t54.dts  |    5 ++---
 arch/arm/boot/dts/omap5-sbc-t54.dts |    4 ++--
 2 files changed, 4 insertions(+), 5 deletions(-)

-- 
1.7.5.4

[PATCH 1/2] ARM: dts: cm-t54: fix serial console power supply.

[Dmitry Lifshitz]

LDO8 regulator is used for act led and serial cosole power supply.

Its DT status is declared as "disabled", however the serial console was
functional until Commit 318dbb02b ("regulator: palmas: Fix SMPS
enable/disable/is_enabled") wich properly turns off LDO8 on boot.

Fix serial cosole power supply (and act led) on boot by turning LDO8 on.

Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
---
 arch/arm/boot/dts/omap5-cm-t54.dts |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/omap5-cm-t54.dts b/arch/arm/boot/dts/omap5-cm-t54.dts
index b8698ca..429471a 100644
--- a/arch/arm/boot/dts/omap5-cm-t54.dts
+++ b/arch/arm/boot/dts/omap5-cm-t54.dts
@@ -353,13 +353,12 @@
 				};
 
 				ldo8_reg: ldo8 {
-					/* VDD_3v0: Does not go anywhere */
+					/* VDD_3V_GP: act led/serial console */
 					regulator-name = "ldo8";
 					regulator-min-microvolt = <3000000>;
 					regulator-max-microvolt = <3000000>;
+					regulator-always-on;
 					regulator-boot-on;
-					/* Unused */
-					status = "disabled";
 				};
 
 				ldo9_reg: ldo9 {
-- 
1.7.5.4

Re: [PATCH 1/2] ARM: dts: cm-t54: fix serial console power supply.

[Paul Walmsley]

On Thu, 4 Sep 2014, Dmitry Lifshitz wrote:

> LDO8 regulator is used for act led and serial cosole power supply.
> 
> Its DT status is declared as "disabled", however the serial console was
> functional until Commit 318dbb02b ("regulator: palmas: Fix SMPS
> enable/disable/is_enabled") wich properly turns off LDO8 on boot.
> 
> Fix serial cosole power supply (and act led) on boot by turning LDO8 on.
> 
> Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il>

Tested-by: Paul Walmsley <paul@pwsan.com>


- Paul

Re: [PATCH 1/2] ARM: dts: cm-t54: fix serial console power supply.

[Tony Lindgren]

* Paul Walmsley <paul@pwsan.com> [140904 08:44]:
> On Thu, 4 Sep 2014, Dmitry Lifshitz wrote:
> 
> > LDO8 regulator is used for act led and serial cosole power supply.
> > 
> > Its DT status is declared as "disabled", however the serial console was
> > functional until Commit 318dbb02b ("regulator: palmas: Fix SMPS
> > enable/disable/is_enabled") wich properly turns off LDO8 on boot.
> > 
> > Fix serial cosole power supply (and act led) on boot by turning LDO8 on.
> > 
> > Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
> 
> Tested-by: Paul Walmsley <paul@pwsan.com>

Applying this into omap-for-v3.17/fixes-v2, the second into
omap-for-v3.18/dt thanks.

Tony

[PATCH 2/2] ARM: dts: sbc-t54: fix model property

[Dmitry Lifshitz]

CM-T54 CoM can be used with various custom baseboards, other
than SB-T54 (supplied with SBC-T54 single board computer).

Update model property of SBC-T54 DT to clarify this.

Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
---
 arch/arm/boot/dts/omap5-sbc-t54.dts |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/omap5-sbc-t54.dts b/arch/arm/boot/dts/omap5-sbc-t54.dts
index aa98fea..8e89793 100644
--- a/arch/arm/boot/dts/omap5-sbc-t54.dts
+++ b/arch/arm/boot/dts/omap5-sbc-t54.dts
@@ -1,11 +1,11 @@
 /*
- * Suppport for CompuLab SBC-T54 with CM-T54
+ * Suppport for CompuLab CM-T54 on SB-T54 baseboard
  */
 
 #include "omap5-cm-t54.dts"
 
 / {
-	model = "CompuLab SBC-T54 with CM-T54";
+	model = "CompuLab CM-T54 on SB-T54";
 	compatible = "compulab,omap5-sbc-t54", "compulab,omap5-cm-t54", "ti,omap5";
 };
 
-- 
1.7.5.4