diff options
Diffstat (limited to 'drivers/gpu/drm/stm/ltdc.h')
| -rw-r--r-- | drivers/gpu/drm/stm/ltdc.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/gpu/drm/stm/ltdc.h b/drivers/gpu/drm/stm/ltdc.h new file mode 100644 index 000000000000..d7a9c736ac1e --- /dev/null +++ b/drivers/gpu/drm/stm/ltdc.h @@ -0,0 +1,40 @@ +/* + * 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_panel *panel; + 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 |