Linux on ARM based TI OMAP SoCs
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From: Felipe Balbi <balbi@ti.com>
To: Tony Lindgren <tony@atomide.com>
Cc: Nishanth Menon <nm@ti.com>,
	Linux OMAP Mailing List <linux-omap@vger.kernel.org>,
	Felipe Balbi <balbi@ti.com>,
	Linux ARM Kernel Mailing List
	<linux-arm-kernel@lists.infradead.org>
Subject: [PATCH] arm: dts: dra7: arch timer sits in always-on power domain
Date: Mon, 13 Jul 2015 15:41:41 -0500	[thread overview]
Message-ID: <1436820101-2172-1-git-send-email-balbi@ti.com> (raw)

According to DRA7x TRM section 4.3.5 Realtime Counter (Master Counter),
the realtime counter sits in the Wakeup Always-On Power domain.
Furthermore, the counter will automatically switch the 32K clock source
when MPU goes into standby and automatically switch back to SYS_CLK or
ABE_LP when MPU goes out of standby.

Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 arch/arm/boot/dts/dra7.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index 8f1e25bcecbd..c1e6fd82485f 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -50,6 +50,7 @@
 			     <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
 		interrupt-parent = <&gic>;
+		always-on;
 	};
 
 	gic: interrupt-controller@48211000 {
-- 
2.4.4

             reply	other threads:[~2015-07-13 20:41 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-13 20:41 Felipe Balbi [this message]
2015-07-13 20:53 ` [PATCH] arm: dts: dra7: arch timer sits in always-on power domain Nishanth Menon
2015-07-14  4:49   ` Tony Lindgren
2015-07-14  7:05     ` Tony Lindgren
2015-07-15  9:24 ` Mark Rutland
2015-07-15 10:00   ` Tony Lindgren

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