linux-kernel - [PATCH/RFC v6 3/7] ARM: shmobile: R-Mobile: Add support for PM domain power-on/off latencies

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Date:	Mon, 27 Apr 2015 14:43:38 +0200
From:	Geert Uytterhoeven <geert+renesas@...der.be>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Kevin Hilman <khilman@...nel.org>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Axel Haslam <ahaslam@...libre.com>
Cc:	linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
	linux-sh@...r.kernel.org, linux-kernel@...r.kernel.org,
	Geert Uytterhoeven <geert+renesas@...der.be>
Subject: [PATCH/RFC v6 3/7] ARM: shmobile: R-Mobile: Add support for PM domain power-on/off latencies

Parse the optional PM domain power-on/off latencies, as specified from
DT.

Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
---
v6:
  - Rebased on top of v4.1-rc1 for new RFC.
---
 arch/arm/mach-shmobile/pm-rmobile.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/mach-shmobile/pm-rmobile.c b/arch/arm/mach-shmobile/pm-rmobile.c
index 95018209ff0b37cc..747d557b7016ec6d 100644
--- a/arch/arm/mach-shmobile/pm-rmobile.c
+++ b/arch/arm/mach-shmobile/pm-rmobile.c
@@ -367,6 +367,7 @@ static int __init rmobile_add_pm_domains(void __iomem *base,
 	for_each_child_of_node(parent, np) {
 		struct rmobile_pm_domain *pd;
 		u32 idx = ~0;
+		u32 latency;
 
 		if (of_property_read_u32(np, "reg", &idx)) {
 			/* always-on domain */
@@ -377,6 +378,10 @@ static int __init rmobile_add_pm_domains(void __iomem *base,
 			return -ENOMEM;
 
 		pd->genpd.name = np->name;
+		if (!of_property_read_u32(np, "power-on-latency", &latency))
+			pd->genpd.power_on_latency_ns = latency;
+		if (!of_property_read_u32(np, "power-off-latency", &latency))
+			pd->genpd.power_off_latency_ns = latency;
 		pd->base = base;
 		pd->bit_shift = idx;
 
-- 
1.9.1

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