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[deliverable/linux.git] / drivers / gpu / drm / sti / sti_vtg.h
1 /*
2 * Copyright (C) STMicroelectronics SA 2014
3 * Author: Benjamin Gaignard <benjamin.gaignard@st.com> for STMicroelectronics.
4 * License terms: GNU General Public License (GPL), version 2
5 */
6
7 #ifndef _STI_VTG_H_
8 #define _STI_VTG_H_
9
10 #define VTG_TOP_FIELD_EVENT 1
11 #define VTG_BOTTOM_FIELD_EVENT 2
12
13 #define VTG_SYNC_ID_HDMI 1
14 #define VTG_SYNC_ID_HDDCS 2
15 #define VTG_SYNC_ID_HDF 3
16 #define VTG_SYNC_ID_DVO 4
17
18 struct sti_vtg;
19 struct drm_display_mode;
20 struct notifier_block;
21
22 struct sti_vtg *of_vtg_find(struct device_node *np);
23 void sti_vtg_set_config(struct sti_vtg *vtg,
24 const struct drm_display_mode *mode);
25 int sti_vtg_register_client(struct sti_vtg *vtg, struct notifier_block *nb,
26 struct drm_crtc *crtc);
27 int sti_vtg_unregister_client(struct sti_vtg *vtg,
28 struct notifier_block *nb);
29
30 u32 sti_vtg_get_line_number(struct drm_display_mode mode, int y);
31 u32 sti_vtg_get_pixel_number(struct drm_display_mode mode, int x);
32
33 #endif
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