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 struct sti_vtg; 14 struct drm_display_mode; 15 struct notifier_block; 16 17 struct sti_vtg *of_vtg_find(struct device_node *np); 18 void sti_vtg_set_config(struct sti_vtg *vtg, 19 const struct drm_display_mode *mode); 20 int sti_vtg_register_client(struct sti_vtg *vtg, 21 struct notifier_block *nb, int crtc_id); 22 int sti_vtg_unregister_client(struct sti_vtg *vtg, 23 struct notifier_block *nb); 24 25 u32 sti_vtg_get_line_number(struct drm_display_mode mode, int y); 26 u32 sti_vtg_get_pixel_number(struct drm_display_mode mode, int x); 27 28 #endif 29