[PATCH v10 3/4] ARM: dts: add RK3288 suspend support

From: Chris Zhong <zyw@rock-chips.com>
To: heiko@sntech.de, dianders@chromium.org
Cc: mturquette@linaro.org,
	Ian Campbell <ijc+devicetree@hellion.org.uk>,
	Russell King <linux@arm.linux.org.uk>,
	Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Linus Walleij <linus.walleij@linaro.org>,
	khilman@kernel.org, linux-rockchip@lists.infradead.org,
	Chris Zhong <zyw@rock-chips.com>, Tony Xie <xxx@rock-chips.com>,
	Kumar Gala <galak@codeaurora.org>,
	linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v10 3/4] ARM: dts: add RK3288 suspend support
Date: Mon,  1 Dec 2014 16:52:19 +0800	[thread overview]
Message-ID: <1417423940-1669-4-git-send-email-zyw@rock-chips.com> (raw)
In-Reply-To: <1417423940-1669-1-git-send-email-zyw@rock-chips.com>

add pmu sram node for suspend, add global_pwroff pinctrl.
The pmu sram is used to store the resume code.
global_pwroff is held low level at work, it would be pull to high
when entering suspend. reference this in the board DTS file since
some boards need it.

Signed-off-by: Tony Xie <xxx@rock-chips.com>
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>

---

Changes in v10: None
Changes in v9: None
Changes in v8:
- add ddr pinctrl for suspend

Changes in v7: None
Changes in v6:
- change pmu_intmem@ff720000 to sram@ff720000

Changes in v5:
- change size to 4k

Changes in v4: None
Changes in v3: None
Changes in v2:
- put "rockchip,rk3288-pmu-sram" to first

 arch/arm/boot/dts/rk3288.dtsi | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index 0f50d5d..eede3c6 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -480,6 +480,11 @@
 		};
 	};
 
+	sram@ff720000 {
+		compatible = "rockchip,rk3288-pmu-sram", "mmio-sram";
+		reg = <0xff720000 0x1000>;
+	};
+
 	pmu: power-management@ff730000 {
 		compatible = "rockchip,rk3288-pmu", "syscon";
 		reg = <0xff730000 0x100>;
@@ -703,6 +708,24 @@
 			bias-disable;
 		};
 
+		sleep {
+			global_pwroff: global-pwroff {
+				rockchip,pins = <0 0 RK_FUNC_1 &pcfg_pull_none>;
+			};
+
+			ddrio_pwroff: ddrio-pwroff {
+				rockchip,pins = <0 1 RK_FUNC_1 &pcfg_pull_none>;
+			};
+
+			ddr0_retention: ddr0-retention {
+				rockchip,pins = <0 2 RK_FUNC_1 &pcfg_pull_up>;
+			};
+
+			ddr1_retention: ddr1-retention {
+				rockchip,pins = <0 3 RK_FUNC_1 &pcfg_pull_up>;
+			};
+		};
+
 		i2c0 {
 			i2c0_xfer: i2c0-xfer {
 				rockchip,pins = <0 15 RK_FUNC_1 &pcfg_pull_none>,
-- 
1.9.1

