1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Copyright (C) 2016 Marek Vasut <marex@denx.de> 4 * 5 * i.MX23/i.MX28/i.MX6SX MXSFB LCD controller driver. 6 */ 7 8 #ifndef __MXSFB_DRV_H__ 9 #define __MXSFB_DRV_H__ 10 11 #include <drm/drm_crtc.h> 12 #include <drm/drm_device.h> 13 #include <drm/drm_encoder.h> 14 #include <drm/drm_plane.h> 15 16 struct clk; 17 18 struct mxsfb_devdata { 19 unsigned int transfer_count; 20 unsigned int cur_buf; 21 unsigned int next_buf; 22 unsigned int hs_wdth_mask; 23 unsigned int hs_wdth_shift; 24 bool has_overlay; 25 }; 26 27 struct mxsfb_drm_private { 28 const struct mxsfb_devdata *devdata; 29 30 void __iomem *base; /* registers */ 31 struct clk *clk; 32 struct clk *clk_axi; 33 struct clk *clk_disp_axi; 34 35 struct drm_device *drm; 36 struct { 37 struct drm_plane primary; 38 struct drm_plane overlay; 39 } planes; 40 struct drm_crtc crtc; 41 struct drm_encoder encoder; 42 struct drm_connector *connector; 43 struct drm_bridge *bridge; 44 }; 45 46 static inline struct mxsfb_drm_private * 47 to_mxsfb_drm_private(struct drm_device *drm) 48 { 49 return drm->dev_private; 50 } 51 52 void mxsfb_enable_axi_clk(struct mxsfb_drm_private *mxsfb); 53 void mxsfb_disable_axi_clk(struct mxsfb_drm_private *mxsfb); 54 55 int mxsfb_kms_init(struct mxsfb_drm_private *mxsfb); 56 57 #endif /* __MXSFB_DRV_H__ */ 58