ARM: dts: at91: sama5d2_xplained: Add proper regulator states for suspend-to-mem

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>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>

diff --git a/arch/arm/boot/dts/at91-sama5d2_xplained.dts b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
index fa54e8866f1ecb9909d5c917b308bff292a5730a..e62c3b6cde4c158d84ca7427f22656e2fcaf4b90 100644 (file)
--- 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;
+                                                       };
                                                };
                                        };