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/*
* Copyright (C) STMicroelectronics SA 2017
*
* Authors: Philippe Cornu <philippe.cornu@st.com>
* Yannick Fertre <yannick.fertre@st.com>
* Fabien Dessenne <fabien.dessenne@st.com>
* Mickael Reulier <mickael.reulier@st.com>
*
* License terms: GNU General Public License (GPL), version 2
*/
#ifndef _LTDC_H_
#define _LTDC_H_
struct ltdc_caps {
u32 hw_version; /* hardware version */
u32 nb_layers; /* number of supported layers */
u32 reg_ofs; /* register offset for applicable regs */
u32 bus_width; /* bus width (32 or 64 bits) */
const u32 *pix_fmt_hw; /* supported pixel formats */
};
struct ltdc_device {
struct drm_fbdev_cma *fbdev;
void __iomem *regs;
struct clk *pixel_clk; /* lcd pixel clock */
struct drm_bridge *bridge;
bool is_panel_bridge;
struct mutex err_lock; /* protecting error_status */
struct ltdc_caps caps;
u32 clut[256]; /* color look up table */
u32 error_status;
u32 irq_status;
};
int ltdc_crtc_enable_vblank(struct drm_device *dev, unsigned int pipe);
void ltdc_crtc_disable_vblank(struct drm_device *dev, unsigned int pipe);
int ltdc_load(struct drm_device *ddev);
void ltdc_unload(struct drm_device *ddev);
#endif
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