diff options
Diffstat (limited to 'drivers/gpu/drm/xlnx/zynqmp_dpsub.h')
| -rw-r--r-- | drivers/gpu/drm/xlnx/zynqmp_dpsub.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xlnx/zynqmp_dpsub.h b/drivers/gpu/drm/xlnx/zynqmp_dpsub.h new file mode 100644 index 000000000000..d771b8b199e0 --- /dev/null +++ b/drivers/gpu/drm/xlnx/zynqmp_dpsub.h @@ -0,0 +1,99 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * ZynqMP DPSUB Subsystem Driver + * + * Copyright (C) 2017 - 2020 Xilinx, Inc. + * + * Authors: + * - Hyun Woo Kwon <hyun.kwon@xilinx.com> + * - Laurent Pinchart <laurent.pinchart@ideasonboard.com> + */ + +#ifndef _ZYNQMP_DPSUB_H_ +#define _ZYNQMP_DPSUB_H_ + +#include <linux/types.h> + +struct clk; +struct device; +struct drm_bridge; +struct zynqmp_disp; +struct zynqmp_disp_layer; +struct zynqmp_dp; +struct zynqmp_dpsub_drm; + +#define ZYNQMP_DPSUB_NUM_LAYERS 2 + +enum zynqmp_dpsub_port { + ZYNQMP_DPSUB_PORT_LIVE_VIDEO, + ZYNQMP_DPSUB_PORT_LIVE_GFX, + ZYNQMP_DPSUB_PORT_LIVE_AUDIO, + ZYNQMP_DPSUB_PORT_OUT_VIDEO, + ZYNQMP_DPSUB_PORT_OUT_AUDIO, + ZYNQMP_DPSUB_PORT_OUT_DP, + ZYNQMP_DPSUB_NUM_PORTS, +}; + +enum zynqmp_dpsub_format { + ZYNQMP_DPSUB_FORMAT_RGB, + ZYNQMP_DPSUB_FORMAT_YCRCB444, + ZYNQMP_DPSUB_FORMAT_YCRCB422, + ZYNQMP_DPSUB_FORMAT_YONLY, +}; + +struct zynqmp_dpsub_audio; + +/** + * struct zynqmp_dpsub - ZynqMP DisplayPort Subsystem + * @dev: The physical device + * @apb_clk: The APB clock + * @vid_clk: Video clock + * @vid_clk_from_ps: True of the video clock comes from PS, false from PL + * @aud_clk: Audio clock + * @aud_clk_from_ps: True of the audio clock comes from PS, false from PL + * @connected_ports: Bitmask of connected ports in the device tree + * @dma_enabled: True if the DMA interface is enabled, false if the DPSUB is + * driven by the live input + * @drm: The DRM/KMS device data + * @bridge: The DP encoder bridge + * @disp: The display controller + * @layers: Video and graphics layers + * @dp: The DisplayPort controller + * @dma_align: DMA alignment constraint (must be a power of 2) + * @audio: DP audio data + */ +struct zynqmp_dpsub { + struct device *dev; + + struct clk *apb_clk; + struct clk *vid_clk; + bool vid_clk_from_ps; + struct clk *aud_clk; + bool aud_clk_from_ps; + + unsigned int connected_ports; + bool dma_enabled; + + struct zynqmp_dpsub_drm *drm; + struct drm_bridge *bridge; + + struct zynqmp_disp *disp; + struct zynqmp_disp_layer *layers[ZYNQMP_DPSUB_NUM_LAYERS]; + struct zynqmp_dp *dp; + + unsigned int dma_align; + + struct zynqmp_dpsub_audio *audio; +}; + +#ifdef CONFIG_DRM_ZYNQMP_DPSUB_AUDIO +int zynqmp_audio_init(struct zynqmp_dpsub *dpsub); +void zynqmp_audio_uninit(struct zynqmp_dpsub *dpsub); +#else +static inline int zynqmp_audio_init(struct zynqmp_dpsub *dpsub) { return 0; } +static inline void zynqmp_audio_uninit(struct zynqmp_dpsub *dpsub) { } +#endif + +void zynqmp_dpsub_release(struct zynqmp_dpsub *dpsub); + +#endif /* _ZYNQMP_DPSUB_H_ */ |