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https://github.com/edk2-porting/linux-next.git
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e947eccbeb
Retrieve the LVDS mode from the panel and configure the LVDS encoder accordingly. LVDS mode selection is static as LVDS panels can't be hot-plugged on any of the device supported by the driver. Support for dynamic mode selection can be implemented in the future when needed. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
/*
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* rcar_du_lvdsenc.h -- R-Car Display Unit LVDS Encoder
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*
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* Copyright (C) 2013-2014 Renesas Electronics Corporation
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*
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* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __RCAR_DU_LVDSENC_H__
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#define __RCAR_DU_LVDSENC_H__
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#include <linux/io.h>
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#include <linux/module.h>
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struct rcar_drm_crtc;
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struct rcar_du_lvdsenc;
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enum rcar_lvds_input {
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RCAR_LVDS_INPUT_DU0,
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RCAR_LVDS_INPUT_DU1,
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RCAR_LVDS_INPUT_DU2,
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};
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/* Keep in sync with the LVDCR0.LVMD hardware register values. */
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enum rcar_lvds_mode {
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RCAR_LVDS_MODE_JEIDA = 0,
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RCAR_LVDS_MODE_MIRROR = 1,
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RCAR_LVDS_MODE_VESA = 4,
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};
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#if IS_ENABLED(CONFIG_DRM_RCAR_LVDS)
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int rcar_du_lvdsenc_init(struct rcar_du_device *rcdu);
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void rcar_du_lvdsenc_set_mode(struct rcar_du_lvdsenc *lvds,
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enum rcar_lvds_mode mode);
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int rcar_du_lvdsenc_enable(struct rcar_du_lvdsenc *lvds,
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struct drm_crtc *crtc, bool enable);
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void rcar_du_lvdsenc_atomic_check(struct rcar_du_lvdsenc *lvds,
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struct drm_display_mode *mode);
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#else
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static inline int rcar_du_lvdsenc_init(struct rcar_du_device *rcdu)
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{
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return 0;
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}
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static inline void rcar_du_lvdsenc_set_mode(struct rcar_du_lvdsenc *lvds,
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enum rcar_lvds_mode mode)
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{
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}
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static inline int rcar_du_lvdsenc_enable(struct rcar_du_lvdsenc *lvds,
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struct drm_crtc *crtc, bool enable)
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{
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return 0;
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}
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static inline void rcar_du_lvdsenc_atomic_check(struct rcar_du_lvdsenc *lvds,
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struct drm_display_mode *mode)
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{
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}
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#endif
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#endif /* __RCAR_DU_LVDSENC_H__ */
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