From 45d59d704080cc0c914b7cff24ccf19f12b9ce23 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Thu, 18 Aug 2016 20:23:01 +0200 Subject: drm: Add new driver for MXSFB controller Add new driver for the MXSFB controller found in i.MX23/28/6SX . The MXSFB controller is a simple framebuffer controller with one parallel LCD output. Unlike the MXSFB fbdev driver that is used on these systems now, this driver uses the DRM/KMS framework. Signed-off-by: Marek Vasut Cc: Lucas Stach Cc: Fabio Estevam Cc: Shawn Guo --- drivers/gpu/drm/mxsfb/mxsfb_drv.h | 54 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 drivers/gpu/drm/mxsfb/mxsfb_drv.h (limited to 'drivers/gpu/drm/mxsfb/mxsfb_drv.h') diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.h b/drivers/gpu/drm/mxsfb/mxsfb_drv.h new file mode 100644 index 000000000000..5d0883fc805b --- /dev/null +++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.h @@ -0,0 +1,54 @@ +/* + * Copyright (C) 2016 Marek Vasut + * + * i.MX23/i.MX28/i.MX6SX MXSFB LCD controller driver. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __MXSFB_DRV_H__ +#define __MXSFB_DRV_H__ + +struct mxsfb_devdata { + unsigned int transfer_count; + unsigned int cur_buf; + unsigned int next_buf; + unsigned int debug0; + unsigned int hs_wdth_mask; + unsigned int hs_wdth_shift; + unsigned int ipversion; +}; + +struct mxsfb_drm_private { + const struct mxsfb_devdata *devdata; + + void __iomem *base; /* registers */ + struct clk *clk; + struct clk *clk_axi; + struct clk *clk_disp_axi; + + struct drm_simple_display_pipe pipe; + struct drm_connector connector; + struct drm_panel *panel; + struct drm_fbdev_cma *fbdev; +}; + +int mxsfb_setup_crtc(struct drm_device *dev); +int mxsfb_create_output(struct drm_device *dev); + +void mxsfb_enable_axi_clk(struct mxsfb_drm_private *mxsfb); +void mxsfb_disable_axi_clk(struct mxsfb_drm_private *mxsfb); + +void mxsfb_crtc_enable(struct mxsfb_drm_private *mxsfb); +void mxsfb_crtc_disable(struct mxsfb_drm_private *mxsfb); +void mxsfb_plane_atomic_update(struct mxsfb_drm_private *mxsfb, + struct drm_plane_state *state); + +#endif /* __MXSFB_DRV_H__ */ -- cgit v1.2.3