sandbox: dts: add sandbox_pmic.dtsi and include it to sandbox.dts and test.dts
This commit adds dtsi file for Sandbox PMIC.
It fully describes the PMIC by:
- i2c emul node - with a default settings of 16 registers
- 2x buck regulator nodes
- 2x ldo regulator nodes
The default register settings are set with preprocessor macros:
- VAL2REG(min[uV/uA], step[uV/uA], val[uV/uA])
- VAL2OMREG(mode id)
Both defined in file:
- include/dt-bindings/pmic/sandbox_pmic.h
The Voltage ranges of each regulator can be found in:
- include/power/sandbox_pmic.h
The new file is included into:
- sandbox.dts
- test.dts
Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested on sandbox:
Tested-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/sandbox/dts/sandbox_pmic.dtsi b/arch/sandbox/dts/sandbox_pmic.dtsi
new file mode 100644
index 0000000..44a26b1
--- /dev/null
+++ b/arch/sandbox/dts/sandbox_pmic.dtsi
@@ -0,0 +1,78 @@
+/*
+ * Sandbox PMIC dts node
+ *
+ * Copyright (C) 2015 Samsung Electronics
+ * Przemyslaw Marczak <p.marczak@samsung.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <dt-bindings/pmic/sandbox_pmic.h>
+
+&sandbox_pmic {
+ compatible = "sandbox,pmic";
+
+ pmic_emul {
+ compatible = "sandbox,i2c-pmic";
+
+ /*
+ * Default PMICs register values are set by macro
+ * VAL2REG(min, step, value) [uV/uA]
+ * VAL2OMREG(mode id)
+ * reg-defaults - byte array
+ */
+ reg-defaults = /bits/ 8 <
+ /* BUCK1 */
+ VAL2REG(800000, 25000, 1000000)
+ VAL2REG(150000, 25000, 150000)
+ VAL2OMREG(BUCK_OM_OFF)
+ /* BUCK2 */
+ VAL2REG(750000, 50000, 3000000)
+ VAL2REG(150000, 25000, 150000)
+ VAL2OMREG(0)
+ /* LDO1 */
+ VAL2REG(800000, 25000, 1600000)
+ VAL2REG(100000, 50000, 150000)
+ VAL2OMREG(LDO_OM_OFF)
+ /* LDO2 */
+ VAL2REG(750000, 50000, 3000000)
+ VAL2REG(150000, 25000, 150000)
+ VAL2OMREG(0)
+ /* reg[12:15] - not used */
+ 0x00
+ 0x00
+ 0x00
+ 0x00
+ >;
+ };
+
+ buck1 {
+ regulator-name = "SUPPLY_1.2V";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-min-microamp = <200000>;
+ regulator-max-microamp = <200000>;
+ regulator-always-on;
+ };
+
+ buck2 {
+ regulator-name = "SUPPLY_3.3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ ldo1 {
+ regulator-name = "VDD_EMMC_1.8V";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-min-microamp = <100000>;
+ regulator-max-microamp = <100000>;
+ regulator-boot-on;
+ };
+
+ ldo2 {
+ regulator-name = "VDD_LCD_3.3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+};