8414aa8f14
Add a driver for laptops with NVIDIA Optimus (hybrid) graphics. The driver provides ACPI support for dynamically powering on and off the GPU, and a function for enabling the GPU power in romstage. Tested on system76/gaze15. References: - DG-09845-001: NVIDIA GN20/QN20 Hardware Design Guide - DG-09954-001: NVIDIA GN20/QN20 Software Design Guide Change-Id: I2dec7aa2c8db7994f78a7cc1220502676e248465 Signed-off-by: Jeremy Soller <jeremy@system76.com> Signed-off-by: Tim Crawford <tcrawford@system76.com>
20 lines
422 B
C
20 lines
422 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef _DRIVERS_GFX_NVIDIA_GPU_H_
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#define _DRIVERS_GFX_NVIDIA_GPU_H_
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#include <stdbool.h>
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struct nvidia_gpu_config {
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/* GPIO for GPU_PWR_EN */
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unsigned int power_gpio;
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/* GPIO for GPU_RST# */
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unsigned int reset_gpio;
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/* Enable or disable GPU power */
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bool enable;
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};
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void nvidia_set_power(const struct nvidia_gpu_config *config);
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#endif /* _DRIVERS_NVIDIA_GPU_H_ */
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