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https://github.com/brain-hackers/u-boot-brain
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d573e46168
As for Audio codec IC, HDMI IC is not "IO safe". HDMI regulators (v3v3 and v1v2) must be enabled to allow I2C1 bus usage. HDMI IC must be under reset during power up and keep HDMI and AUDIO devices in reset while they are not used in U-Boot to keep them in low power mode (each device can be kept in reset independently keeping their power supplies ON until kernel). Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
13 lines
223 B
Plaintext
13 lines
223 B
Plaintext
// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
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/*
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* Copyright : STMicroelectronics 2018
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*/
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#include "stm32mp157a-dk1-u-boot.dtsi"
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&i2c1 {
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hdmi-transmitter@39 {
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reset-gpios = <&gpioa 10 GPIO_ACTIVE_LOW>;
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};
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};
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