ipq806x: qcom rpm fix support for smb208

In commit "regulator: qcom: Rework to single platform device" the smb208
regulator used in IPQ8064 was left out.

Add it to that new framework and update Docs and DT accordingly.

Signed-off-by: Adrian Panella <ianchi74@outlook.com>

2 files changed, 124 insertions, 0 deletions

diff --git a/target/linux/ipq806x/patches-4.4/167-ARM-qcom_rpm_fix_support_for_smb208.patch b/target/linux/ipq806x/patches-4.4/167-ARM-qcom_rpm_fix_support_for_smb208.patch
new file mode 100644
index 0000000000..8da70340de
--- /dev/null
+++ b/target/linux/ipq806x/patches-4.4/167-ARM-qcom_rpm_fix_support_for_smb208.patch
@@ -0,0 +1,50 @@
+
+In commit "regulator: qcom: Rework to single platform device" the smb208 regulator
+used in IPQ8064 was left out.
+
+Add it to that new framework and update Docs accordingly.
+
+Signed-off-by: Adrian Panella <ianchi74@outlook.com>
+
+--- a/Documentation/devicetree/bindings/mfd/qcom-rpm.txt
++++ b/Documentation/devicetree/bindings/mfd/qcom-rpm.txt
+@@ -59,6 +59,7 @@ Regulator nodes are identified by their
+ 		    "qcom,rpm-pm8058-regulators"
+ 		    "qcom,rpm-pm8901-regulators"
+ 		    "qcom,rpm-pm8921-regulators"
++		    "qcom,rpm-smb208-regulators"
+ 
+ - vdd_l0_l1_lvs-supply:
+ - vdd_l2_l11_l12-supply:
+@@ -156,6 +157,9 @@ pm8921:
+ 	l29, lvs1, lvs2, lvs3, lvs4, lvs5, lvs6, lvs7, usb-switch, hdmi-switch,
+ 	ncp
+ 
++smb208:
++	s1a, s1b, s2a, s2b
++
+ The content of each sub-node is defined by the standard binding for regulators -
+ see regulator.txt - with additional custom properties described below:
+ 
+--- a/drivers/regulator/qcom_rpm-regulator.c
++++ b/drivers/regulator/qcom_rpm-regulator.c
+@@ -869,10 +869,19 @@ static const struct rpm_regulator_data r
+ 	{ }
+ };
+ 
++static const struct rpm_regulator_data rpm_smb208_regulators[] = {
++	{ "s1a",  QCOM_RPM_SMB208_S1a, &smb208_smps, "vin_s1a" },
++	{ "s1b",  QCOM_RPM_SMB208_S1b, &smb208_smps, "vin_s1b" },
++	{ "s2a",  QCOM_RPM_SMB208_S2a, &smb208_smps, "vin_s2a" },
++	{ "s2b",  QCOM_RPM_SMB208_S2b, &smb208_smps, "vin_s2b" },
++	{ }
++};
++
+ static const struct of_device_id rpm_of_match[] = {
+ 	{ .compatible = "qcom,rpm-pm8058-regulators", .data = &rpm_pm8058_regulators },
+ 	{ .compatible = "qcom,rpm-pm8901-regulators", .data = &rpm_pm8901_regulators },
+ 	{ .compatible = "qcom,rpm-pm8921-regulators", .data = &rpm_pm8921_regulators },
++	{ .compatible = "qcom,rpm-smb208-regulators", .data = &rpm_smb208_regulators },
+ 	{ }
+ };
+ MODULE_DEVICE_TABLE(of, rpm_of_match);
diff --git a/target/linux/ipq806x/patches-4.4/168-ARM-qcom-add-smb208-DT.patch b/target/linux/ipq806x/patches-4.4/168-ARM-qcom-add-smb208-DT.patch
new file mode 100644
index 0000000000..503654d988
--- /dev/null
+++ b/target/linux/ipq806x/patches-4.4/168-ARM-qcom-add-smb208-DT.patch
@@ -0,0 +1,74 @@
+Change DT to use new smb208 regulator driver.
+
+Signed-off-by: Adrian Panella <ianchi74@outlook.com>
+
+--- a/arch/arm/boot/dts/qcom-ipq8064.dtsi
++++ b/arch/arm/boot/dts/qcom-ipq8064.dtsi
+@@ -167,45 +167,37 @@
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+ 
+-			smb208_s1a: smb208-s1a {
+-				compatible = "qcom,rpm-smb208";
+-				reg = <QCOM_RPM_SMB208_S1a>;
+-
+-				regulator-min-microvolt = <1050000>;
+-				regulator-max-microvolt = <1150000>;
++			regulators {
++				compatible = "qcom,rpm-smb208-regulators";
+ 
+-				qcom,switch-mode-frequency = <1200000>;
+-
+-			};
++				smb208_s1a: s1a {
++					regulator-min-microvolt = <1050000>;
++					regulator-max-microvolt = <1150000>;
+ 
+-			smb208_s1b: smb208-s1b {
+-				compatible = "qcom,rpm-smb208";
+-				reg = <QCOM_RPM_SMB208_S1b>;
++					qcom,switch-mode-frequency = <1200000>;
+ 
+-				regulator-min-microvolt = <1050000>;
+-				regulator-max-microvolt = <1150000>;
+-
+-				qcom,switch-mode-frequency = <1200000>;
+-			};
++				};
+ 
+-			smb208_s2a: smb208-s2a {
+-				compatible = "qcom,rpm-smb208";
+-				reg = <QCOM_RPM_SMB208_S2a>;
++				smb208_s1b: s1b {
++					regulator-min-microvolt = <1050000>;
++					regulator-max-microvolt = <1150000>;
+ 
+-				regulator-min-microvolt = < 800000>;
+-				regulator-max-microvolt = <1250000>;
++					qcom,switch-mode-frequency = <1200000>;
++				};
+ 
+-				qcom,switch-mode-frequency = <1200000>;
+-			};
++				smb208_s2a: s2a {
++					regulator-min-microvolt = < 800000>;
++					regulator-max-microvolt = <1250000>;
+ 
+-			smb208_s2b: smb208-s2b {
+-				compatible = "qcom,rpm-smb208";
+-				reg = <QCOM_RPM_SMB208_S2b>;
++					qcom,switch-mode-frequency = <1200000>;
++				};
+ 
+-				regulator-min-microvolt = < 800000>;
+-				regulator-max-microvolt = <1250000>;
++				smb208_s2b: s2b {
++					regulator-min-microvolt = < 800000>;
++					regulator-max-microvolt = <1250000>;
+ 
+-				qcom,switch-mode-frequency = <1200000>;
++					qcom,switch-mode-frequency = <1200000>;
++				};
+ 			};
+ 		};
+