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https://github.com/brain-hackers/u-boot-brain
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120800df72
This driver supports GPIOs present on PM8916 PMIC. There are 2 device drivers inside: - GPIO driver (4 "generic" GPIOs) - Keypad driver that presents itself as GPIO with 2 inputs (power and reset) Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
49 lines
925 B
Plaintext
49 lines
925 B
Plaintext
Driver for part of pm8916 PMIC - gpio and power/reset keys
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This device should be child of SPMI pmic.
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1) GPIO driver
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Required properties:
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- compatible: "qcom,pm8916-gpio"
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- reg: peripheral ID, size of register block
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- gpio-controller
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- gpio-count: number of GPIOs
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- #gpio-cells: 2
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Optional properties:
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- gpio-bank-name: name of bank (as default "pm8916" is used)
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Example:
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pmic_gpios: gpios@c000 {
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compatible = "qcom,pm8916-gpio";
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reg = <0xc000 0x400>;
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gpio-controller;
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gpio-count = <4>;
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#gpio-cells = <2>;
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gpio-bank-name="pmic";
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};
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2) Power/Reset key driver
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Required properties:
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- compatible: "qcom,pm8916-pwrkey"
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- reg: peripheral ID, size of register block
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- gpio-controller
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- #gpio-cells: 2
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Optional properties:
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- gpio-bank-name: name of bank (as default "pm8916_key" is used)
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Example:
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pmic_pon: pon@800 {
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compatible = "qcom,pm8916-pwrkey";
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reg = <0x800 0x96>;
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#gpio-cells = <2>;
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gpio-controller;
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};
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