From: <Claudiu.Beznea@microchip.com>
To: <lgirdwood@gmail.com>, <broonie@kernel.org>, <robh+dt@kernel.org>,
<Nicolas.Ferre@microchip.com>, <alexandre.belloni@bootlin.com>,
<Ludovic.Desroches@microchip.com>, <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org, Claudiu.Beznea@microchip.com,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
boris.brezillon@bootlin.com
Subject: [PATCH v3 5/6] ARM: dts: at91: sama5d2_xplained: Add proper regulator states for suspend-to-mem
Date: Tue, 11 Dec 2018 15:56:54 +0000 [thread overview]
Message-ID: <1544543768-2066-6-git-send-email-claudiu.beznea@microchip.com> (raw)
In-Reply-To: <1544543768-2066-1-git-send-email-claudiu.beznea@microchip.com>
From: Boris Brezillon <boris.brezillon@bootlin.com>
When entering suspend-to-mem, all PMIC outputs are disabled except
VDDIODDR which is put in power saving mode, and whose voltage is
increased (probably to counter the poor accuracy of power saving mode).
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
[claudiu.beznea@microchip.com: use regulator-changeable-in-suspend,
regulator-suspend-max-microvolt, regulator-suspend-max-microvolt,
use macros for regulators' states, add regulator-inital-state]
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
arch/arm/boot/dts/at91-sama5d2_xplained.dts | 54 +++++++++++++++++++++++++++++
1 file changed, 54 insertions(+)
diff --git a/arch/arm/boot/dts/at91-sama5d2_xplained.dts b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
index 518e2b095ccf..438e6576cf7c 100644
--- a/arch/arm/boot/dts/at91-sama5d2_xplained.dts
+++ b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
@@ -47,6 +47,7 @@
#include "sama5d2-pinfunc.h"
#include <dt-bindings/mfd/atmel-flexcom.h>
#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/regulator/active-semi,8945a-regulator.h>
/ {
model = "Atmel SAMA5D2 Xplained";
@@ -181,49 +182,102 @@
regulator-name = "VDD_1V35";
regulator-min-microvolt = <1350000>;
regulator-max-microvolt = <1350000>;
+ regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_FIXED>,
+ <ACT8945A_REGULATOR_MODE_LOWPOWER>;
+ regulator-initial-mode = <ACT8945A_REGULATOR_MODE_FIXED>;
regulator-always-on;
+
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-min-microvolt=<1400000>;
+ regulator-suspend-max-microvolt=<1400000>;
+ regulator-changeable-in-suspend;
+ regulator-mode=<ACT8945A_REGULATOR_MODE_LOWPOWER>;
+ };
};
vdd_1v2_reg: REG_DCDC2 {
regulator-name = "VDD_1V2";
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1300000>;
+ regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_FIXED>,
+ <ACT8945A_REGULATOR_MODE_LOWPOWER>;
+ regulator-initial-mode = <ACT8945A_REGULATOR_MODE_FIXED>;
regulator-always-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
vdd_3v3_reg: REG_DCDC3 {
regulator-name = "VDD_3V3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
+ regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_FIXED>,
+ <ACT8945A_REGULATOR_MODE_LOWPOWER>;
+ regulator-initial-mode = <ACT8945A_REGULATOR_MODE_FIXED>;
regulator-always-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
vdd_fuse_reg: REG_LDO1 {
regulator-name = "VDD_FUSE";
regulator-min-microvolt = <2500000>;
regulator-max-microvolt = <2500000>;
+ regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_NORMAL>,
+ <ACT8945A_REGULATOR_MODE_LOWPOWER>;
+ regulator-initial-mode = <ACT8945A_REGULATOR_MODE_NORMAL>;
regulator-always-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
vdd_3v3_lp_reg: REG_LDO2 {
regulator-name = "VDD_3V3_LP";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
+ regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_NORMAL>,
+ <ACT8945A_REGULATOR_MODE_LOWPOWER>;
+ regulator-initial-mode = <ACT8945A_REGULATOR_MODE_NORMAL>;
regulator-always-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
vdd_led_reg: REG_LDO3 {
regulator-name = "VDD_LED";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
+ regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_NORMAL>,
+ <ACT8945A_REGULATOR_MODE_LOWPOWER>;
+ regulator-initial-mode = <ACT8945A_REGULATOR_MODE_NORMAL>;
regulator-always-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
vdd_sdhc_1v8_reg: REG_LDO4 {
regulator-name = "VDD_SDHC_1V8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
+ regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_NORMAL>,
+ <ACT8945A_REGULATOR_MODE_LOWPOWER>;
+ regulator-initial-mode = <ACT8945A_REGULATOR_MODE_NORMAL>;
regulator-always-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
};
--
2.7.4
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next prev parent reply other threads:[~2018-12-11 15:58 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-11 15:56 [PATCH v3 0/5] add PM functionality for act8945a PMIC Claudiu.Beznea
2018-12-11 15:56 ` [PATCH v3 1/6] regulator: act8945a-regulator: unlock expert registers Claudiu.Beznea
2018-12-11 15:56 ` [PATCH v3 2/6] regulator: act8945a-regulator: Implement PM functionalities Claudiu.Beznea
2018-12-11 15:56 ` [PATCH v3 3/6] regulator: act8945a-regulator: fix line over 80 chars warning Claudiu.Beznea
2018-12-11 15:56 ` [PATCH v3 4/6] regulator: act8945a-regulator: add shutdown function Claudiu.Beznea
2018-12-11 15:56 ` Claudiu.Beznea [this message]
2018-12-11 15:56 ` [PATCH v3 6/6] regulator: add documentation for regulator modes and suspend states Claudiu.Beznea
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