1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (C) STMicroelectronics SA 2017
15 u32 hw_version; /* hardware version */
16 u32 nb_layers; /* number of supported layers */
17 u32 reg_ofs; /* register offset for applicable regs */
18 u32 bus_width; /* bus width (32 or 64 bits) */
19 const u32 *pix_fmt_hw; /* supported pixel formats */
20 bool non_alpha_only_l1; /* non-native no-alpha formats on layer 1 */
21 int pad_max_freq_hz; /* max frequency supported by pad */
24 #define LTDC_MAX_LAYER 4
28 ktime_t last_timestamp;
33 struct clk *pixel_clk; /* lcd pixel clock */
34 struct mutex err_lock; /* protecting error_status */
35 struct ltdc_caps caps;
38 struct fps_info plane_fpsi[LTDC_MAX_LAYER];
39 struct drm_atomic_state *suspend_state;
42 bool ltdc_crtc_scanoutpos(struct drm_device *dev, unsigned int pipe,
43 bool in_vblank_irq, int *vpos, int *hpos,
44 ktime_t *stime, ktime_t *etime,
45 const struct drm_display_mode *mode);
47 int ltdc_load(struct drm_device *ddev);
48 void ltdc_unload(struct drm_device *ddev);
49 void ltdc_suspend(struct drm_device *ddev);
50 int ltdc_resume(struct drm_device *ddev);