[PATCH 1/2] ARM: dts: qcom: msm8974-klte: Add fuel gauge

[PATCH 1/2] ARM: dts: qcom: msm8974-klte: Add fuel gauge

[Iskren Chernev]

The Samsung Galaxy S5 uses a maxim17048 fuelgauge. The maxim,rcomp value
is taken from downstream kernel. Model data and temperature-based
compensation are not yet supported in the mainline driver, but the
readings seem fine nevertheless.

Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
---
 .../boot/dts/qcom-msm8974-samsung-klte.dts    | 39 +++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts b/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts
index b0899107f3ced..97352de913142 100644
--- a/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts
+++ b/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts
@@ -406,6 +406,16 @@ mux {
 			};
 		};
 
+		i2c12_pins: i2c12 {
+			mux {
+				pins = "gpio87", "gpio88";
+				function = "blsp_i2c12";
+
+				drive-strength = <2>;
+				bias-disable;
+			};
+		};
+
 		i2c_touchkey_pins: i2c-touchkey {
 			mux {
 				pins = "gpio95", "gpio96";
@@ -666,6 +676,27 @@ max77826_buckboost: BUCKBOOST {
 			};
 		};
 	};
+
+	i2c@f9968000 {
+		status = "okay";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&i2c12_pins>;
+
+		fuelgauge@36 {
+			compatible = "maxim,max17048";
+			reg = <0x36>;
+
+			maxim,double-soc;
+			maxim,rcomp = /bits/ 8 <0x56>;
+
+			interrupt-parent = <&pma8084_gpios>;
+			interrupts = <21 IRQ_TYPE_EDGE_FALLING>;
+
+			pinctrl-names = "default";
+			pinctrl-0 = <&fuelgauge_pin>;
+		};
+	};
 };
 
 &spmi_bus {
@@ -703,6 +734,14 @@ wlan_sleep_clk_pin: wlan-sleep-clk-pin {
 				power-source = <PMA8084_GPIO_S4>;
 				qcom,drive-strength = <PMIC_GPIO_STRENGTH_HIGH>;
 			};
+
+			fuelgauge_pin: fuelgauge-int-pin {
+				pins = "gpio21";
+				function = "normal";
+				bias-disable;
+				input-enable;
+				power-source = <PMA8084_GPIO_S4>;
+			};
 		};
 	};
 };

base-commit: 6147c83fd749d19a0d3ccc2f64d12138ab010b47
-- 
2.29.2

[PATCH 2/2] ARM: dts: qcom: msm8974-lge-nexus5: Add fuel gauge

[Iskren Chernev]

The LG Nexus 5 uses a maxim17048 fuelgauge. The maxim,rcomp value is
taken from downstream dt. Temperature-based compensation is not yet
supported in the mainline driver, but the readings seem fine nevertheless.

Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
Tested-by: Nícolas F. R. A. Prado <nfraprado@protonmail.com>
---
 .../qcom-msm8974-lge-nexus5-hammerhead.dts    | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts b/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts
index 32b474bfeec32..e769f638f2052 100644
--- a/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts
+++ b/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts
@@ -566,6 +566,22 @@ charger: bq24192@6b {
 
 			usb_otg_vbus: usb-otg-vbus { };
 		};
+
+		fuelgauge: max17048@36 {
+			compatible = "maxim,max17048";
+			reg = <0x36>;
+
+			maxim,double-soc;
+			maxim,rcomp = /bits/ 8 <0x4d>;
+
+			interrupt-parent = <&msmgpio>;
+			interrupts = <9 IRQ_TYPE_EDGE_FALLING>;
+
+			pinctrl-names = "default";
+			pinctrl-0 = <&fuelgauge_pin>;
+
+			maxim,alert-low-soc-level = <2>;
+		};
 	};
 
 	i2c@f9924000 {
@@ -706,6 +722,15 @@ gpio_keys_pin_a: gpio-keys-active {
 				power-source = <PM8941_GPIO_S3>;
 			};
 
+			fuelgauge_pin: fuelgauge-int {
+				pins = "gpio9";
+				function = "normal";
+
+				bias-disable;
+				input-enable;
+				power-source = <PM8941_GPIO_S3>;
+			};
+
 			wlan_sleep_clk_pin: wl-sleep-clk {
 				pins = "gpio16";
 				function = "func2";
-- 
2.29.2