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From: Robert Nelson <robertcnelson@gmail.com>
To: tony@atomide.com, devicetree@vger.kernel.org
Cc: linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	Robert Nelson <robertcnelson@gmail.com>,
	Felipe Balbi <balbi@ti.com>, Johan Hovold <johan@kernel.org>
Subject: [PATCH] ARM: dts: am335x-boneblack: disable RTC-only sleep
Date: Wed, 20 May 2015 10:38:42 -0500	[thread overview]
Message-ID: <1432136322-7609-1-git-send-email-robertcnelson@gmail.com> (raw)

Fixes: http://bugs.elinux.org/issues/143

Entering RTC-only sleep is only properly supported on early prototypes series
(pre-A6) of the BeagleBone Black.  Since rev (A6A), which include all production
versions, it is not support at due to.

(rev A6) enable of the 3v3b regulator moved from LDO2 to LDO4 (3v3a)
side-effect: 3v3b rail remains on in sleep-mode (also in off-mode when battery-powered)

(rev A6A) am335x vdds supply moved from LDO3 to LDO1
side-effect: vdds remains supplied in sleep-mode

Reported-by: Matthijs van Duin <matthijsvanduin@gmail.com>
Tested-by: Matthijs van Duin <matthijsvanduin@gmail.com>
Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Johan Hovold <johan@kernel.org>
---
 arch/arm/boot/dts/am335x-boneblack.dts | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/arm/boot/dts/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts
index 5c42d25..901739f 100644
--- a/arch/arm/boot/dts/am335x-boneblack.dts
+++ b/arch/arm/boot/dts/am335x-boneblack.dts
@@ -80,7 +80,3 @@
 		status = "okay";
 	};
 };
-
-&rtc {
-	system-power-controller;
-};
-- 
2.1.4


             reply	other threads:[~2015-05-20 15:38 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-20 15:38 Robert Nelson [this message]
2015-05-20 16:47 ` [PATCH] ARM: dts: am335x-boneblack: disable RTC-only sleep Tony Lindgren
2015-06-01  0:20 ` Matthijs van Duin
2015-06-01  2:18   ` Robert Nelson
2015-06-01  5:14     ` Matthijs van Duin
2015-06-01 17:23       ` Tony Lindgren
2015-06-01 19:33         ` Matthijs van Duin
     [not found]           ` <20150601193328.GA27640-2pNSKKP3PSK44ywRPIzf9A@public.gmane.org>
2015-06-01 20:01             ` Tony Lindgren
2015-06-11 14:18               ` [PATCH] Revert "ARM: dts: am335x-boneblack: disable RTC-only sleep" Johan Hovold
     [not found]                 ` <1434032318-3557-1-git-send-email-johan-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2015-07-06 12:16                   ` Tony Lindgren
2015-06-01 17:12     ` [PATCH] ARM: dts: am335x-boneblack: disable RTC-only sleep Tony Lindgren

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