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From: Nishanth Menon <nm@ti.com>
To: "Benoît Cousson" <benoit.cousson@linaro.org>,
	"Tony Lindgren" <tony@atomide.com>
Cc: linux-omap@vger.kernel.org, devicetree-discuss@lists.ozlabs.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, J Keerthy <j-keerthy@ti.com>,
	Nishanth Menon <nm@ti.com>
Subject: [PATCH 4/9] ARM: dts: omap5-uevm: update LDO1 voltage to 1.5V and settings
Date: Wed, 17 Jul 2013 11:45:33 -0500	[thread overview]
Message-ID: <1374079538-19548-5-git-send-email-nm@ti.com> (raw)
In-Reply-To: <1374079538-19548-1-git-send-email-nm@ti.com>

commit e00c27ef3b4c23e39d0a77b7c8e5be44c28001c7
(ARM: dts: OMAP5: Add Palmas MFD node and regulator nodes)
introduced regulator entries for OMAP5uEVM.

However, The regulator information is based on an older temporary
pre-production board variant and does not reflect production board
750-2628-XXX boards.

LDO1 supplies VDDAPHY_CAM which is OMAP5's vdda_csiporta/b/c. This
can only be supplied at 1.5V or 1.8V and we currently supply 2.8V.

To prevent any potential device damage risk, use the specified
1.5V-1.8V supply.

Remove 'always-on' and 'boot-on' settings here as it is
a 'on need' supply to SoC IP and is not enabled by PMIC by
default at boot.

Reported-by: Marc Jüttner <m-juettner@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
---
 arch/arm/boot/dts/omap5-uevm.dts |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts
index 87b3e9e..a55f4d8 100644
--- a/arch/arm/boot/dts/omap5-uevm.dts
+++ b/arch/arm/boot/dts/omap5-uevm.dts
@@ -346,10 +346,8 @@
 				ldo1_reg: ldo1 {
 					/* VDDAPHY_CAM: vdda_csiport */
 					regulator-name = "ldo1";
-					regulator-min-microvolt = <2800000>;
-					regulator-max-microvolt = <2800000>;
-					regulator-always-on;
-					regulator-boot-on;
+					regulator-min-microvolt = <1500000>;
+					regulator-max-microvolt = <1800000>;
 				};
 
 				ldo2_reg: ldo2 {
-- 
1.7.9.5

  parent reply	other threads:[~2013-07-17 16:45 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-17 16:45 [PATCH 0/9] ARM: dts: omap5-uevm: fixup wrong regulator configuration Nishanth Menon
2013-07-17 16:45 ` [PATCH 1/9] ARM: dts: omap5-uevm: document regulator signals used on the actual board Nishanth Menon
2013-07-17 16:45 ` [PATCH 3/9] ARM: dts: omap5-uevm: update and disable unused regulators LDO[28] Nishanth Menon
2013-07-17 16:45 ` Nishanth Menon [this message]
     [not found] ` <1374079538-19548-1-git-send-email-nm-l0cyMroinI0@public.gmane.org>
2013-07-17 16:45   ` [PATCH 2/9] ARM: dts: omap5-uevm: update SMPS9 settings Nishanth Menon
2013-07-17 16:45   ` [PATCH 5/9] ARM: dts: omap5-uevm: update LDO3 voltage to 1.5V and settings Nishanth Menon
2013-07-17 16:45   ` [PATCH 6/9] ARM: dts: omap5-uevm: update LDO4 " Nishanth Menon
2013-07-17 16:45   ` [PATCH 8/9] ARM: dts: omap5-uevm: update LDO7 voltage to 2V " Nishanth Menon
2013-07-17 16:45 ` [PATCH 7/9] ARM: dts: omap5-uevm: update LDO6 voltage to 1.2V Nishanth Menon
2013-07-17 16:45 ` [PATCH 9/9] ARM: dts: omap5-uevm: update SDCARD LDO9 and resource REGEN3 Nishanth Menon
2013-07-29  9:57 ` [PATCH 0/9] ARM: dts: omap5-uevm: fixup wrong regulator configuration Keerthy
2013-07-29 13:17   ` Nishanth Menon
2013-07-29 13:39     ` Benoit Cousson

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