1 // SPDX-License-Identifier: MIT
3 * Copyright © 2022 Intel Corporation
6 #include <drm/drm_device.h>
9 #include "intel_display.h"
10 #include "intel_hti.h"
11 #include "intel_hti_regs.h"
13 void intel_hti_init(struct intel_display *display)
16 * If the platform has HTI, we need to find out whether it has reserved
17 * any display resources before we create our display outputs.
19 if (DISPLAY_INFO(display)->has_hti)
20 display->hti.state = intel_de_read(display, HDPORT_STATE);
23 bool intel_hti_uses_phy(struct intel_display *display, enum phy phy)
25 if (drm_WARN_ON(display->drm, phy == PHY_NONE))
28 return display->hti.state & HDPORT_ENABLED &&
29 display->hti.state & HDPORT_DDI_USED(phy);
32 u32 intel_hti_dpll_mask(struct intel_display *display)
34 if (!(display->hti.state & HDPORT_ENABLED))
38 * Note: This is subtle. The values must coincide with what's defined
41 return REG_FIELD_GET(HDPORT_DPLL_USED_MASK, display->hti.state);