From mboxrd@z Thu Jan 1 00:00:00 1970 From: linus.walleij@linaro.org (Linus Walleij) Date: Mon, 7 Nov 2016 09:44:44 +0100 Subject: [PATCH 3/3 v4] ARM: dts: Add gyro and accel to APQ8060 Dragonboard In-Reply-To: <1478508284-10847-1-git-send-email-linus.walleij@linaro.org> References: <1478508284-10847-1-git-send-email-linus.walleij@linaro.org> Message-ID: <1478508284-10847-3-git-send-email-linus.walleij@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This adds the MPU-3050 gyroscope and the KXSD9 accelerometer to the Qualcomm APQ8060 Dragonboard. The KXSD9 is mounted beyond the MPU-3050 and appear as a subdevice beyond it. We set up the required GPIO and interrupt lines to make the devices work. Signed-off-by: Linus Walleij --- ChangeLog v3->v4: - Use interrupts-extended - Add Bjorn's ACK. ChangeLog v2->v3: - Move the interrupt to the pm8058 alias to reflect the two patches properly specifying the PMIC as interrupt parent. ChangeLog v1->v2: - Use the new I2C mux gate bindings from Peter Rosin (merged to the I2C subsystem) --- arch/arm/boot/dts/qcom-apq8060-dragonboard.dts | 52 ++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) diff --git a/arch/arm/boot/dts/qcom-apq8060-dragonboard.dts b/arch/arm/boot/dts/qcom-apq8060-dragonboard.dts index ea660ffa03ea..39d9e6ddefed 100644 --- a/arch/arm/boot/dts/qcom-apq8060-dragonboard.dts +++ b/arch/arm/boot/dts/qcom-apq8060-dragonboard.dts @@ -220,6 +220,14 @@ function = "ebi2"; }; }; + + /* Interrupt line for the KXSD9 accelerometer */ + dragon_kxsd9_gpios: kxsd9 { + irq { + pins = "gpio57"; /* IRQ line */ + bias-pull-up; + }; + }; }; qcom,ssbi at 500000 { @@ -272,6 +280,15 @@ power-source = ; }; }; + dragon_mpu3050_gpios: mpu3050-gpios { + pinconf { + pins = "gpio17"; + function = "normal"; + input-enable; + bias-disable; + power-source = ; + }; + }; dragon_sdcc3_gpios: sdcc3-gpios { pinconf { pins = "gpio22"; @@ -389,6 +406,41 @@ vddd-supply = <&pm8058_lvs0>; // 1.8V vdda-supply = <&pm8058_l14>; // 2.85V }; + mpu3050 at 68 { + compatible = "invensense,mpu3050"; + reg = <0x68>; + /* + * GPIO17 has interrupt 208 on the + * PM8058, it is pulled high by a 10k + * resistor to VLOGIC so needs to be + * active low/falling edge. + */ + interrupts-extended = <&pm8058 208 IRQ_TYPE_EDGE_FALLING>; + pinctrl-names = "default"; + pinctrl-0 = <&dragon_mpu3050_gpios>; + vlogic-supply = <&pm8058_lvs0>; // 1.8V + vdd-supply = <&pm8058_l14>; // 2.85V + + /* + * The MPU-3050 acts as a hub for the + * accelerometer. + */ + i2c-gate { + #address-cells = <1>; + #size-cells = <0>; + + kxsd9 at 18 { + compatible = "kionix,kxsd9"; + reg = <0x18>; + interrupt-parent = <&tlmm>; + interrupts = <57 IRQ_TYPE_EDGE_FALLING>; + pinctrl-names = "default"; + pinctrl-0 = <&dragon_kxsd9_gpios>; + iovdd-supply = <&pm8058_lvs0>; // 1.8V + vdd-supply = <&pm8058_l14>; // 2.85V + }; + }; + }; }; }; -- 2.7.4