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Kernel/Graphics: Export DDC I2C address definition to global header file

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Liav A 2022-03-31 09:57:25 +03:00 • committed by Andrew Kaster
parent 0c64abb5e3
commit cd3c51f29b
Notes: sideshowbarker 2024-07-17 00:55:34 +09:00
2 changed files with 5 additions and 3 deletions
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4
Kernel/Graphics/Definitions.h
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@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il> * Copyright (c) 2021-2022, Liav A. <liavalb@hotmail.co.il>
* *
* SPDX-License-Identifier: BSD-2-Clause * SPDX-License-Identifier: BSD-2-Clause
*/ */
@ -31,5 +31,7 @@ struct Modesetting {
Timings horizontal; Timings horizontal;
Timings vertical; Timings vertical;
}; };
// Note: Address 0x50 is expected to be the DDC2 (EDID) i2c address.
static constexpr u8 ddc2_i2c_address = 0x50;
} }

4
Kernel/Graphics/Intel/NativeDisplayConnector.cpp
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@ -351,8 +351,8 @@ void IntelNativeDisplayConnector::gmbus_read_edid()
Array<u8, 128> crt_edid_bytes {}; Array<u8, 128> crt_edid_bytes {};
{ {
SpinlockLocker control_lock(m_control_lock); SpinlockLocker control_lock(m_control_lock);
MUST(m_gmbus_connector->write(DDC2_I2C_ADDRESS, 0)); MUST(m_gmbus_connector->write(Graphics::ddc2_i2c_address, 0));
MUST(m_gmbus_connector->read(DDC2_I2C_ADDRESS, crt_edid_bytes.data(), crt_edid_bytes.size())); MUST(m_gmbus_connector->read(Graphics::ddc2_i2c_address, crt_edid_bytes.data(), crt_edid_bytes.size()));
} }
set_edid_bytes(crt_edid_bytes); set_edid_bytes(crt_edid_bytes);
} }