| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * 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> |
| */ |
| |
| #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 */ |
| bool non_alpha_only_l1; /* non-native no-alpha formats on layer 1 */ |
| }; |
| |
| struct ltdc_device { |
| void __iomem *regs; |
| struct clk *pixel_clk; /* lcd pixel clock */ |
| struct mutex err_lock; /* protecting error_status */ |
| struct ltdc_caps caps; |
| 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 |
