pmic/regulator: Add hisilicon hi655X pmic/regulator core driver for hi6220 SoC

Signed-off-by: Zhang Nian <zhangnian@huawei.com>
Signed-off-by: Bintian Wang <bintian.wang@huawei.com>
Signed-off-by: Dongbin Yu <yudongbin@huawei.com>
Signed-off-by: Fei Wang <w.f@huawei.com>
Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com>

2 files changed, 104 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/mfd/hi6552.txt b/Documentation/devicetree/bindings/mfd/hi6552.txt
new file mode 100644
index 000000000000..8cbd46fab79b
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/hi6552.txt
@@ -0,0 +1,75 @@
+* Hisilicon hi6552 Power Management Integrated Circuit (PMIC)
+
+hi6552 consists of a large and varied group of sub-devices:
+
+Device			 Supply Names	 Description
+------			 ------------	 -----------
+hi6552-powerkey		:		: Powerkey
+hi6552-regulator-pmic	:		: Regulators
+hi6552-usbvbus		:		: USB plug detection
+hi6552-pmu-rtc		:		: RTC
+hi6552-coul		:		: Coulomb
+
+Required properties:
+- compatible : Should be "hisilicon,hi6552-pmic-driver"
+- reg: Base address of PMIC on hi6220 soc
+- #interrupt-cells: Should be 2, is the local IRQ number for hi6552.
+- interrupt-controller: hi6552 has internal IRQs (has own IRQ domain).
+- pmu_irq_gpio: should be &gpio_pmu_irq_n, is the IRQ gpio of hi6552.
+
+Example:
+	pmic: pmic@F8000000 {
+                compatible = "hisilicon,hi6552-pmic-driver";
+                reg = <0x0 0xF8000000 0x0 0x1000>;
+                #interrupt-cells = <2>;
+                interrupt-controller;
+                pmu_irq_gpio = <&gpio_pmu_irq_n>;
+                status = "ok";
+                ponkey:ponkey@b1{
+                        compatible = "hisilicon,hi6552-powerkey";
+                        interrupt-parent = <&pmic>;
+                        interrupts = <6 0>, <5 0>, <4 0>;
+                        interrupt-names = "down", "up", "hold 1s";
+                };
+                coul: coul@1 {
+                        compatible = "hisilicon,hi6552-coul";
+                        interrupt-parent = <&pmic>;
+                        interrupts = <24 0>, <25 0>, <26 0>, <27 0>;
+                        interrupt-names = "cl_int_i", "cl_out_i", "cl_in_i", "vbat_int_i";
+                        battery_product_index = <0>;
+                        status = "ok";
+                };
+                rtc: rtc@1 {
+                        compatible = "hisilicon,hi6552-pmu-rtc";
+                        interrupt-parent = <&pmic>;
+                        interrupts = <20 0>;
+                        interrupt-names = "hi6552_pmu_rtc";
+                        board_id = <1>;
+                };
+                usbvbus:usbvbus@b2{
+                        compatible = "hisilicon,hi6552-usbvbus";
+                        interrupt-parent = <&pmic>;
+                        interrupts = <9 0>, <8 0>;
+                        interrupt-names = "connect", "disconnect";
+                };
+		ldo2: regulator@a21 {
+                        compatible = "hisilicon,hi6552-regulator-pmic";
+                        regulator-name = "ldo2";
+                        regulator-min-microvolt = <2500000>;
+                        regulator-max-microvolt = <3200000>;
+                        hisilicon,valid-modes-mask = <0x02>;
+                        hisilicon,valid-ops-mask = <0x01d>;
+                        hisilicon,initial-mode = <0x02>;
+                        hisilicon,regulator-type = <0x01>;
+
+                        hisilicon,off-on-delay = <120>;
+                        hisilicon,ctrl-regs = <0x029 0x02a 0x02b>;
+                        hisilicon,ctrl-data = <0x1 0x1>;
+                        hisilicon,vset-regs = <0x072>;
+                        hisilicon,vset-data = <0 0x3>;
+                        hisilicon,regulator-n-vol = <8>;
+                        hisilicon,vset-table = <2500000>,<2600000>,<2700000>,<2800000>,<2900000>,<3000000>,<3100000>,<3200000>;
+                        hisilicon,num_consumer_supplies = <1>;
+                        hisilicon,consumer-supplies = "sensor_analog";
+                };
+	};
diff --git a/Documentation/devicetree/bindings/regulator/hi6220-mtcmos.txt b/Documentation/devicetree/bindings/regulator/hi6220-mtcmos.txt
new file mode 100644
index 000000000000..720bdfc02fd1
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/hi6220-mtcmos.txt
@@ -0,0 +1,29 @@
+
+Required parent device properties:
+- compatible:
+  - "hisilicon,hi6xxx-mtcmos-driver"
+- hisilicon,mtcmos-steady-us: The time to wait for power steady
+- hisilicon,mtcmos-sc-on-base: address of hi6220 soc control register
+
+Required child device properties:
+- regulator-name: The name of mtcmos
+- hisilicon,ctrl-regs: offset of ctrl-regs
+- hisilicon,ctrl-data: the bit to ctrl the regulator
+
+Example:
+	mtcmos {
+		compatible = "hisilicon,hi6220-mtcmos-driver";
+		hisilicon,mtcmos-steady-us = <10>;
+		hisilicon,mtcmos-sc-on-base  = <0xf7800000>;
+
+		mtcmos1: regulator@a1{
+			regulator-name = "G3D_PD_VDD";
+			hisilicon,ctrl-regs = <0x830 0x834 0x83c>;
+			hisilicon,ctrl-data = <1 0x1>;
+		};
+		mtcmos2: regulator@a2{
+			regulator-name = "SOC_MED";
+			hisilicon,ctrl-regs = <0x830 0x834 0x83c>;
+			hisilicon,ctrl-data = <2 0x1>;
+		};
+	};